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  • 2015-2019  (14)
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  • 1
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    A multitrophic perspective on biodiversity–ecosystem functioning research (2019)
    ELSEVIER ACADEMIC PRESS INC
    In:  EPIC3Advances in Ecological Research, ELSEVIER ACADEMIC PRESS INC, 61, pp. 1-54, ISSN: 0065-2504
    Details
    Publication Date: 2020-10-07
    Description: Concern about the functional consequences of unprecedented loss in biodiversity has prompted biodiversity–ecosystem functioning (BEF) research to become one of the most active fields of ecological research in the past 25 years. Hundreds of experiments have manipulated biodiversity as an independent variable and found compelling support that the functioning of ecosystems increases with the diversity of their ecological communities. This research has also identified some of the mechanisms underlying BEF relationships, some context-dependencies of the strength of relationships, as well as implications for various ecosystem services that humankind depends upon. In this chapter, we argue that a multitrophic perspective of biotic interactions in random and non-random biodiversity change scenarios is key to advance future BEF research and to address some of its most important remaining challenges. We discuss that the study and the quantification of multitrophic interactions in space and time facilitates scaling up from small-scale biodiversity manipulations and ecosystem function assessments to management-relevant spatial scales across ecosystem boundaries. We specifically consider multitrophic conceptual frameworks to understand and predict the context-dependency of BEF relationships. Moreover, we highlight the importance of the eco-evolutionary underpinnings of multitrophic BEF relationships. We outline that FAIR data (meeting the standards of findability, accessibility, interoperability, and reusability) and reproducible processing will be key to advance this field of research by making it more integrative. Finally, we show how these BEF insights may be implemented for ecosystem management, society, and policy. Given that human well-being critically depends on the multiple services provided by diverse, multitrophic communities, integrating the approaches of evolutionary ecology, community ecology, and ecosystem ecology in future BEF research will be key to refine conservation targets and develop sustainable management strategies.
    Repository Name: EPIC Alfred Wegener Institut
    Type: Article , peerRev
    Format: application/pdf
    Location Call Number Limitation Availability
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    PAPER (OA)
  • 2
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    Collection of environmental data, soil water content, root water uptake, evapotranspiration, plant trait and root trait data of the Jena-Ecotron experiment (2017)
    PANGAEA
    In:  Supplement to: Guderle, Marcus; Bachmann, Dörte; Milcu, Alexandru; Gockele, Annette; Bechmann, Marcel; Fischer, Christine; Roscher, Christiane; Landais, Damien; Ravel, Olivier; Devidal, Sébastien; Roy, Jacques; Gessler, Arthur; Buchmann, Nina; Weigelt, Alexandra; Hildebrandt, Anke (2017): Dynamic niche partitioning in root water uptake facilitates efficient water use in more diverse grassland plant communities. Functional Ecology, https://doi.org/10.1111/1365-2435.12948
    Details
    Publication Date: 2023-06-24
    Description: This data set contains environmental variables (imposed cumulative precipitation, measurements of radiation, air relative humidity and air temperature), measurements of soil water content, root water uptake estimated from soil moisture contents and community evapotranspiration derived from root water uptake as well as from weight changes, plant trait data (specific leaf area, leaf dry matter content, leaf water potential measured at predawn and midday, stomatal conductance, leaf greenness, height of species, aboveground biomass, species abundances, community leaf area index, vegetation and soil surface cover) and root trait data (biomass, length, diameter, surface area, tips, forks and crossings) from the 12 macrocosms used in the Jena-Ecotron Experiment in 2012. This experiment was conducted in the Montpellier European Ecotron (CNRS, France), an advanced controlled environment facility for ecosystem research, and aimed at understanding the impact of plant species richness (4 vs. 16 species) for ecosystem carbon and water fluxes. The soil monoliths used in this experiment contained plant communities originating from the long- term Jena Experiment (50°57.1' N, 11°37.5' E, 130 m above sea level; mean annual temperature 9.3°C, mean annual precipitation 587 mm) established in May 2002. Twelve plots were selected for the Jena-Ecotron study according to the following criteria: (1) the four functional groups grasses, legumes, small and tall herbs were present, (2) realized species numbers were close to sown species richness, and (3) plots were equally distributed across the experimental field site to account for different soil textures. Large monoliths (2 m² surface area, diameter of 1.6 m, 2 m depth with a weight of 7 to 8 tons) including intact soil and vegetation were excavated in December 2011 and placed in lysimeters. In March 2012, before the start of the vegetation growth, the lysimeters were transported and installed in the Macrocosms platform of the Montpellier European Ecotron. These data were used to investigate the characteristics of root water uptake profiles in grassland plant communities with different species richness (4-species and 16-species mixtures) and productivity to gain a deeper understanding of how plant species richness affects efficient use of available soil water.
    Keywords: Jena-Ecotron Experiment; JenExp; The Jena Experiment
    Type: Dataset
    Format: application/zip, 12 datasets
    Location Call Number Limitation Availability
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    DATA PANGAEA
  • 3
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    Evapotranspiration from the Jena-Ecotron experiment (including 12 soil monoliths with 4- and 16-species mixtures in year 2012) (2017)
    PANGAEA
    Details
    Publication Date: 2024-01-26
    Description: This dataset contains community evapotranspiration derived from root water uptake as well as from weight changes from the 12 macrocosms used in the Jena-Ecotron Experiment in 2012. This experiment was conducted in the Montpellier European Ecotron (CNRS, France) an advanced controlled environment facility for ecosystem research, and aimed at understanding the impact of plant species richness (4 vs. 16 species) for ecosystem carbon and water fluxes. The soil monoliths used in this experiment contained plant communities originating from the long- term Jena Experiment (50°57.1' N, 11°37.5' E, 130 m above sea level; mean annual temperature 9.3°C, mean annual precipitation 587 mm) established in May 2002. Twelve plots from the Jena Experiment were selected for the Jena-Ecotron study according to the following criteria: (1) the four functional groups grasses, legumes, small and tall herbs were present, (2) realized species numbers were close to sown species richness, and (3) plots were equally distributed across the experimental field site to account for different soil textures. Large monoliths (2 m² surface area, diameter of 1.6 m, 2 m depth with a weight of 7 to 8 tons) including intact soil and vegetation were excavated from the twelve plots in December 2011 and placed in lysimeters. In March 2012, before the start of the vegetation growth, the lysimeters were transported and installed in the Macrocosms platform of the Montpellier European Ecotron. Ecosystem evapotranspiration (ET) was measured from the lysimeter weight changes to validate the ET estimated with a water balance method. The weight measurements (6 minutes resolution) were smoothed using a moving average over 30 minutes to reduce noise due to the experimental setup (Milcu et al. 2016). A water balance method was used to estimate daily root water uptake profiles and thus daily ecosystem ET from diurnal fluctuation of soil water content measurements (Guderle & Hildebrandt, 2015; doi:10.5194/hess-19-409-2015). The method consists in applying a running regression over multiple time steps on soil water content time series of each measurement depth. Here we used measurements with a temporal resolution of 1 minute from 10 cm, 20 cm, 30 cm and 60 cm depth. We split up the time series by fitting a linear function to each day and night branch of the time series in order to disentangle soil water flow and actual root water uptake. In a prior investigation we found the main transpiration time lasted from 5:30 am to 6:30 pm so that the onset of the day and night branch was fixed to these times. Night time transpiration was low (〈 23 % of the day time transpiration) and therefore neglected (Milcu et al. 2016). Subsequently, the root water uptake profile was integrated over the entire soil profile to determine the ET per one m² surface and day. The modelled ET was furthermore multiplied by the factor two in order to upscale the modelled ET to the surface of one lysimeter which is two m². Evapotranspiration values estimated from weight changes between 5:00 am and 6:30 pm of the respective day are provided for 25 June 2012, 28 June 2012 and 29 June 2012. Evapotranspiration values estimated from root water uptake are provided for the days 25 June 2012, 28 June 2012, 29 June 2012, 17 July 2012 and 18 July 2012.
    Keywords: Date/time end; Date/time start; estimated from lysimeter (weight changes); Evapotranspiration; EXP; Experiment; Experimental plot; HEIGHT above ground; Height aboveground, maximum; Height aboveground, minimum; Jena-Ecotron Experiment; Jena Experiment 2012; JenExp; JenExp_2012; Replicate; The Jena Experiment; Thuringia, Germany; Treatment: aboveground: pesticide; Treatment: below pesticide; Treatment: drought; Treatment: eartworm exclosure; Treatment: fertilizing; Treatment: molluscide; Treatment: mowing; Treatment: nematicide; Treatment: phytometers; Treatment: seed addition; Treatment: special; Treatment: weeding; Treatment: weeding history
    Type: Dataset
    Format: text/tab-separated-values, 1236 data points
    Location Call Number Limitation Availability
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    DATA PANGAEA
  • 4
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    Root water uptake from the Jena-Ecotron experiment (including 12 soil monoliths with 4- and 16-species mixtures in year 2012) (2017)
    PANGAEA
    Details
    Publication Date: 2024-01-26
    Description: This dataset contains root water uptake estimated from soil moisture contents from the 12 macrocosms used in the Jena-Ecotron Experiment in 2012. This experiment was conducted in the Montpellier European Ecotron (CNRS, France) an advanced controlled environment facility for ecosystem research, and aimed at understanding the impact of plant species richness (4 vs. 16 species) for ecosystem carbon and water fluxes. The soil monoliths used in this experiment contained plant communities originating from the long- term Jena Experiment (50°57.1' N, 11°37.5' E, 130 m above sea level; mean annual temperature 9.3°C, mean annual precipitation 587 mm) established in May 2002. Twelve plots from the Jena Experiment were selected for the Jena-Ecotron study according to the following criteria: (1) the four functional groups grasses, legumes, small and tall herbs were present, (2) realized species numbers were close to sown species richness, and (3) plots were equally distributed across the experimental field site to account for different soil textures. Large monoliths (2 m² surface area, diameter of 1.6 m, 2 m depth with a weight of 7 to 8 tons) including intact soil and vegetation were excavated from the twelve plots in December 2011 and placed in lysimeters. In March 2012, before the start of the vegetation growth, the lysimeters were transported and installed in the Macrocosms platform of the Montpellier European Ecotron. A water balance method was used to estimate daily root water uptake profiles and thus daily ecosystem ET from diurnal fluctuation of soil water content measurements (Guderle & Hildebrandt, 2015; doi:10.5194/hess-19-409-2015). The method consists in applying a running regression over multiple time steps on soil water content time series of each measurement depth. Here we used measurements with a temporal resolution of 1 minute from 10 cm, 20 cm, 30 cm and 60 cm depth. We split up the time series by fitting a linear function to each day and night branch of the time series in order to disentangle soil water flow and actual root water uptake. In a prior investigation we found the main transpiration time lasted from 5:30 am to 6:30 pm so that the onset of the day and night branch was fixed to these times. Night time transpiration was low (〈 23 % of the day time transpiration) and therefore neglected (Milcu et al. 2016). Subsequently, the root water uptake profile was integrated over the entire soil profile to determine the ET per one m² surface and day. The modelled ET was furthermore multiplied by the factor two in order to upscale the modelled ET to the surface of one lysimeter which is two m². Root water uptake values are provided as absolute values (cm d-1) and as percentage values for the days 25 June 2012, 28 June 2012, 29 June 2012, 17 July 2012 and 18 July 2012 for 10 cm, 20 cm, 30 cm and 60 cm depth. Root water uptake as percentage was calculated as ratio of root water uptake of individual layers to the sum of total root water uptake from 10 cm to 60 cm depths multiplied by 100.
    Keywords: Date/time end; Date/time start; DEPTH, soil; Depth, soil, maximum; Depth, soil, minimum; EXP; Experiment; Experimental plot; Jena-Ecotron Experiment; Jena Experiment 2012; JenExp; JenExp_2012; Replicate; Root water, absolute; Root water, uptake; The Jena Experiment; Thuringia, Germany; Treatment: aboveground: pesticide; Treatment: below pesticide; Treatment: drought; Treatment: eartworm exclosure; Treatment: fertilizing; Treatment: molluscide; Treatment: mowing; Treatment: nematicide; Treatment: phytometers; Treatment: seed addition; Treatment: special; Treatment: weeding; Treatment: weeding history
    Type: Dataset
    Format: text/tab-separated-values, 5040 data points
    Location Call Number Limitation Availability
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    DATA PANGAEA
  • 5
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    Cumulative precipitation imposed in the Jena-Ecotron experiment (2017)
    PANGAEA
    Details
    Publication Date: 2024-01-26
    Description: This dataset contains cumulative precipitation imposed in the Jena-Ecotron Experiment in 2012. This experiment was conducted in the Montpellier European Ecotron (CNRS, France), an advanced controlled environment facility for ecosystem research, and aimed at understanding the impact of plant species richness (4 vs. 16 species) for ecosystem carbon and water fluxes. The soil monoliths used in this experiment contained plant communities originating from the long- term Jena Experiment (50°57.1' N, 11°37.5' E, 130 m above sea level; mean annual temperature 9.3°C, mean annual precipitation 587 mm) established in May 2002. Twelve plots were selected for the Jena-Ecotron study according to the following criteria: (1) the four functional groups grasses, legumes, small and tall herbs were present, (2) realized species numbers were close to sown species richness, and (3) plots were equally distributed across the experimental field site to account for different soil textures. Large monoliths (2 m² surface area, diameter of 1.6 m, 2 m depth with a weight of 7 to 8 tons) including intact soil and vegetation were excavated in December 2011 and placed in lysimeters. In March 2012, before the start of the vegetation growth, the lysimeters were transported and installed in the Macrocosms platform of the Montpellier European Ecotron. The precipitation imposed in the Jena-Ecotron experiment aimed at reconstructing the field-measured values recorded in Jena in year 2007. This year was chosen as a proxy of average climatic conditions at the Jena field site. Note that owing to the higher evapotranspiration rates in the Ecotron, higher precipitation (+28%) was imposed in the Ecotron relative to year 2007. Precipitation was applied to each lysimeter by manual watering using a hose equipped with a sprinkler and a flowmeter. The water was purified by microfiltration (1µ) and reverse osmosis followed by ozone and UV treatments. Precipitation values are provided as cumulative values from 28th of March 2012 to 30th of July 2012.
    Keywords: Date/time end; Date/time start; DEPTH, soil; EXP; Experiment; Experimental plot; Jena-Ecotron Experiment; Jena Experiment 2012; JenExp; JenExp_2012; Precipitation, cumulated; The Jena Experiment; Thuringia, Germany; Treatment: aboveground: pesticide; Treatment: below pesticide; Treatment: drought; Treatment: eartworm exclosure; Treatment: fertilizing; Treatment: molluscide; Treatment: mowing; Treatment: nematicide; Treatment: phytometers; Treatment: seed addition; Treatment: special; Treatment: weeding; Treatment: weeding history
    Type: Dataset
    Format: text/tab-separated-values, 25500 data points
    Location Call Number Limitation Availability
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    DATA PANGAEA
  • 6
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    Soil water content data from the Jena-Ecotron (12 soil monoliths with 4-species and 16-species mixtures, up to 140 m depth, year 2012) (2017)
    PANGAEA
    Details
    Publication Date: 2024-01-26
    Description: This dataset contains measurements of soil water content from the 12 macrocosms used in the Jena-Ecotron Experiment in 2012. This experiment was conducted in the Montpellier European Ecotron (CNRS, France), an advanced controlled environment facility for ecosystem research, and aimed at understanding the impact of plant species richness (4 vs. 16 species) for ecosystem carbon and water fluxes. The soil monoliths used in this experiment contained plant communities originating from the long- term Jena Experiment (50°57.1' N, 11°37.5' E, 130 m above sea level; mean annual temperature 9.3°C, mean annual precipitation 587 mm) established in May 2002. Twelve plots from the Jena Experiment were selected for the Jena-Ecotron study according to the following criteria: (1) the four functional groups grasses, legumes, small and tall herbs were present, (2) realized species numbers were close to sown species richness, and (3) plots were equally distributed across the experimental field site to account for different soil textures. Large monoliths (2 m² surface area, diameter of 1.6 m, 2 m depth with a weight of 7 to 8 tons) including intact soil and vegetation were excavated from the twelve plots in December 2011 and placed in lysimeters. In March 2012, before the start of the vegetation growth, the lysimeters were transported and installed in the Macrocosms platform of the Montpellier European Ecotron. Soil water contents used for estimating root water uptake was measured with time domain reflectometry (TDR) sensors TRIME-PICO 32 (IMKO Micromodultechnik GmbH, Germany), which were placed horizontally in six soil depths into the soil monoliths (one sensor at 10 cm, 20 cm, 30 cm, 60 cm, 100 cm, and 140 cm, respectively). The used sensors had a rod length of 110 mm and a rod diameter of 3.5 mm. The total length of the sensor was 328 mm. The measurements were taken every minute from mid of June to end of July (13.06.-28.07.2012). The sensors were installed with a minimum distance of 22 cm to other sensor installations, and the edge of the lysimeter steel wall. As with the other climatic variables in the Jena-Ecotron experiment, we aimed to recreate the environmental conditions measured in the field at the Jena Experiment site in year 2007.
    Keywords: DATE/TIME; Date/time end; Date/time start; DEPTH, soil; EXP; Experiment; Experimental plot; Jena-Ecotron Experiment; Jena Experiment 2012; JenExp; JenExp_2012; Soil moisture; The Jena Experiment; Thuringia, Germany; Treatment: aboveground: pesticide; Treatment: below pesticide; Treatment: drought; Treatment: eartworm exclosure; Treatment: fertilizing; Treatment: molluscide; Treatment: mowing; Treatment: nematicide; Treatment: phytometers; Treatment: seed addition; Treatment: special; Treatment: weeding; Treatment: weeding history
    Type: Dataset
    Format: text/tab-separated-values, 13415039 data points
    Location Call Number Limitation Availability
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    DATA PANGAEA
  • 7
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    Radiation, air temperature and air relative humidity from the Jena-Ecotron experiment (2017)
    PANGAEA
    Details
    Publication Date: 2024-01-26
    Description: This dataset contains measurements of radiation, air relative humidity and air temperature from the 12 macrocosms used in the Jena-Ecotron Experiment in 2012. This experiment was conducted in the Montpellier European Ecotron (CNRS, France), an advanced controlled environment facility for ecosystem research, and aimed at understanding the impact of plant species richness (4 vs. 16 species) for ecosystem carbon and water fluxes. The soil monoliths used in this experiment contained plant communities originating from the long- term Jena Experiment (50°57.1' N, 11°37.5' E, 130 m above sea level; mean annual temperature 9.3°C, mean annual precipitation 587 mm) established in May 2002. Twelve plots from the Jena Experiment were selected for the Jena-Ecotron study according to the following criteria: (1) the four functional groups grasses, legumes, small and tall herbs were present, (2) realized species numbers were close to sown species richness, and (3) plots were equally distributed across the experimental field site to account for different soil textures. Large monoliths (2 m**2 surface area, diameter of 1.6 m, 2 m depth with a weight of 7 to 8 tons) including intact soil and vegetation were excavated from the twelve plots in December 2011 and placed in lysimeters. In March 2012, before the start of the vegetation growth, the lysimeters were transported and installed in the Macrocosms platform of the Montpellier European Ecotron. The respective climatic variables imposed in the Ecotron facility during the Jena-Ecotron experiment aimed at reconstructing the field-measured values recorded in Jena in year 2007. This year was chosen as a good proxy of average spring-summer conditions in the Jena Experiment. In order to recreate the air temperature and humidity daily profiles from the Jena Experiment, field-recorded weather data was used as set points in the Ecotron (at 10 min interval). Air relative humidity and temperature were measured with the DT269 digital sensor (Michell 706 Instruments Ltd, Ely, UK) in the outlet conduit of the macrocosm, 20 cm above lysimeter/experimental ground level. Radiation was measured outside of the Ecotron domes with a BF5 Sunshine Sensor (Delta-T Devices, Cambridge, UK) 1.5m above the lysimeter/experimental ground level. The radiation within the macrocosms was calculated as 56% of the outside measured values based on the fact that 44% of the radiation was blocked by the Ecotron cover and the additional mesh installed in order to bring the radiation values to the same level as in the Jena Experiment. All tree time series are given with a temporal resolution of 12 min from 28th of March 2012 to 31st of July 2012.
    Keywords: DATE/TIME; Date/time end; Date/time start; DEPTH, soil; Depth, soil, maximum; Depth, soil, minimum; EXP; Experiment; Experimental plot; Humidity, relative; Jena-Ecotron Experiment; Jena Experiment 2012; JenExp; JenExp_2012; Radiation, total; Temperature, air; The Jena Experiment; Thuringia, Germany; Treatment: aboveground: pesticide; Treatment: below pesticide; Treatment: drought; Treatment: eartworm exclosure; Treatment: fertilizing; Treatment: molluscide; Treatment: mowing; Treatment: nematicide; Treatment: phytometers; Treatment: seed addition; Treatment: special; Treatment: weeding; Treatment: weeding history
    Type: Dataset
    Format: text/tab-separated-values, 3810240 data points
    Location Call Number Limitation Availability
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    DATA PANGAEA
  • 8
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    Leaf water potential measured at predawn and midday of species in the Jena-Ecotron experiment (2017)
    PANGAEA
    Details
    Publication Date: 2024-01-26
    Description: This dataset contains leaf water potential measured at predawn and midday of species in the Jena-Ecotron Experiment in 2012. This experiment was conducted in the Montpellier European Ecotron (CNRS, France), an advanced controlled environment facility for ecosystem research, and aimed at understanding the impact of plant species richness (4 vs. 16 species) for ecosystem carbon and water fluxes. The soil monoliths used in this experiment contained plant communities originating from the long- term Jena Experiment (50°57.1' N, 11°37.5' E, 130 m above sea level; mean annual temperature 9.3°C, mean annual precipitation 587 mm) established in May 2002. Twelve plots were selected for the Jena-Ecotron study according to the following criteria: (1) the four functional groups grasses, legumes, small and tall herbs were present, (2) realized species numbers were close to sown species richness, and (3) plots were equally distributed across the experimental field site to account for different soil textures. Large monoliths (2 m² surface area, diameter of 1.6 m, 2 m depth with a weight of 7 to 8 tons) including intact soil and vegetation were excavated in December 2011 and placed in lysimeters. In March 2012, before the start of the vegetation growth, the lysimeters were transported and installed in the Macrocosms platform of the Montpellier European Ecotron. Leaf water potential was measured with a pressure chamber (Pressure Chamber Instruments Model 600, PMS Instrument Company, Albany, Oregon, USA) at predawn (04:00 am - 06:00 am) and midday (01:30 pm - 04:00 pm) for the most abundant species on each plot from 17-19 July 2012. Two to three species were chosen in the 4-species mixtures, and five to eight species in the 16-species mixtures. Measurements were carried out on young, but fully expanded leaves from four individuals per species per plot. Stomatal conductance and leaf greenness were measured on three leaves from different individuals of all available species in each experimental unit. Values of leaf water potential of the individual measurements were averaged per species per plot.
    Keywords: DATE/TIME; Date/time end; Date/time start; EXP; Experiment; Experimental plot; HEIGHT above ground; Height aboveground, maximum; Height aboveground, minimum; Jena-Ecotron Experiment; Jena Experiment 2012; JenExp; JenExp_2012; Leaf water, midday; Leaf water, predawn; Replicate; Species; The Jena Experiment; Thuringia, Germany; Treatment: aboveground: pesticide; Treatment: below pesticide; Treatment: drought; Treatment: eartworm exclosure; Treatment: fertilizing; Treatment: molluscide; Treatment: mowing; Treatment: nematicide; Treatment: phytometers; Treatment: seed addition; Treatment: special; Treatment: weeding; Treatment: weeding history
    Type: Dataset
    Format: text/tab-separated-values, 8207 data points
    Location Call Number Limitation Availability
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    DATA PANGAEA
  • 9
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    Vegetation and soil surface cover in the Jena-Ecotron experiment (2017)
    PANGAEA
    Details
    Publication Date: 2024-01-26
    Description: This dataset contains vegetation and soil surface cover in the Jena-Ecotron Experiment in 2012. This experiment was conducted in the Montpellier European Ecotron (CNRS, France), an advanced controlled environment facility for ecosystem research, and aimed at understanding the impact of plant species richness (4 vs. 16 species) for ecosystem carbon and water fluxes. The soil monoliths used in this experiment contained plant communities originating from the long- term Jena Experiment (50°57.1' N, 11°37.5' E, 130 m above sea level; mean annual temperature 9.3°C, mean annual precipitation 587 mm) established in May 2002. Twelve plots were selected for the Jena-Ecotron study according to the following criteria: (1) the four functional groups grasses, legumes, small and tall herbs were present, (2) realized species numbers were close to sown species richness, and (3) plots were equally distributed across the experimental field site to account for different soil textures. Large monoliths (2 m² surface area, diameter of 1.6 m, 2 m depth with a weight of 7 to 8 tons) including intact soil and vegetation were excavated in December 2011 and placed in lysimeters. In March 2012, before the start of the vegetation growth, the lysimeters were transported and installed in the Macrocosms platform of the Montpellier European Ecotron. Cover abundance per sown species and total cover of sown species, weeds, bare ground, mosses, litter were estimated on the whole Ecotron-plot area shortly before the destructive harvest of the experimental units on 15 July 2017. Species-level data were estimated using decimal scale (Londo 1976): 1: 〈= 1%, 2: 〈= 5%, 10: 6-15%, 20: 16-25%, 30: 26-35%, 40: 36-45%, 50: 46-55%, 60: 56-65%, 70: 66-75%, 80: 76-85%, 90: 86-100%). Community cover data were directly estimated as percentage (cover 〈1% is coded as 0.5).
    Keywords: Achillea millefolium, cover; Ajuga reptans, cover; Alopecurus pratensis, cover; Anthoxanthum odoratum, cover; Anthriscus sylvestris, cover; Arrhenatherum elatius, cover; Avenula pubescens, cover; Bare ground, cover; Bellis perennis, cover; Bromus erectus, cover; Bromus hordeaceus, cover; Campanula patula, cover; Cardamine pratensis, cover; Carum carvi, cover; Centaurea jacea, cover; Crepis biennis, cover; Cynosurus cristatus, cover; Date/time end; Date/time start; EXP; Experiment; Experimental plot; Festuca pratensis, cover; Festuca rubra, cover; Galium mollugo, cover; Geranium pratense, cover; Glechoma hederacea, cover; HEIGHT above ground; Height aboveground, maximum; Height aboveground, minimum; Heracleum sphondylium, cover; Jena-Ecotron Experiment; Jena Experiment 2012; JenExp; JenExp_2012; Knautia arvensis, cover; Lathyrus pratensis, cover; Leontodon autumnalis, cover; Leucanthemum vulgare, cover; Litter, cover; Lotus corniculatus, cover; Luzula campestris, cover; Medicago lupulina, cover; Medicago x varia, cover; Moss, cover; Onobrychis viciifolia, cover; Phleum pratense, cover; Pimpinella major, cover; Plantago lanceolata, cover; Plantago media, cover; Poa pratensis, cover; Poa trivialis, cover; Primula veris, cover; Prunella vulgaris, cover; Ranunculus repens, cover; Rumex acetosa, cover; Sanguisorba officinalis, cover; Sown plant community, cover; Taraxacum officinale, cover; The Jena Experiment; Thuringia, Germany; Tragopogon pratensis, cover; Treatment: aboveground: pesticide; Treatment: below pesticide; Treatment: drought; Treatment: eartworm exclosure; Treatment: fertilizing; Treatment: molluscide; Treatment: mowing; Treatment: nematicide; Treatment: phytometers; Treatment: seed addition; Treatment: special; Treatment: weeding; Treatment: weeding history; Trifolium campestre, cover; Trifolium dubium, cover; Trifolium fragiferum, cover; Trifolium hybridum, cover; Trifolium pratense, cover; Trifolium repens, cover; Trisetum flavescens, cover; Veronica chamaedrys, cover; Vicia cracca, cover; Weeds plant community, cover
    Type: Dataset
    Format: text/tab-separated-values, 396 data points
    Location Call Number Limitation Availability
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    DATA PANGAEA
  • 10
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    Aboveground biomass and species abundances estimated in the Jena-Ecotron experiment (2017)
    PANGAEA
    Details
    Publication Date: 2024-01-26
    Description: This dataset contains aboveground biomass and species abundances in the Jena-Ecotron Experiment in 2012. This experiment was conducted in the Montpellier European Ecotron (CNRS, France), an advanced controlled environment facility for ecosystem research, and aimed at understanding the impact of plant species richness (4 vs. 16 species) for ecosystem carbon and water fluxes. The soil monoliths used in this experiment contained plant communities originating from the long- term Jena Experiment (50°57.1' N, 11°37.5' E, 130 m above sea level; mean annual temperature 9.3°C, mean annual precipitation 587 mm) established in May 2002. Twelve plots were selected for the Jena-Ecotron study according to the following criteria: (1) the four functional groups grasses, legumes, small and tall herbs were present, (2) realized species numbers were close to sown species richness, and (3) plots were equally distributed across the experimental field site to account for different soil textures. Large monoliths (2 m² surface area, diameter of 1.6 m, 2 m depth with a weight of 7 to 8 tons) including intact soil and vegetation were excavated in December 2011 and placed in lysimeters. In March 2012, before the start of the vegetation growth, the lysimeters were transported and installed in the Macrocosms platform of the Montpellier European Ecotron. Aboveground biomass production was determined from a final destructive harvest of the Ecotron experiment by clipping the vegetation at ground level on an area of 90 × 55 cm (=0.495m²) in each experimental unit (23-24 July 2012). Samples were sorted to target (= sown) species and weeds (= species not sown into a particular plot). Detached dead plant material was separated. A portion of the species-specific biomass was separated into leaves, shoot and inflorescences. Shoot biomass was dried at 65°C for 48 hours before weighing.
    Keywords: Achillea millefolium, biomass as dry weight; Achillea millefolium, proportion of flowers; Achillea millefolium, proportion of leaves; Achillea millefolium, proportion of shoots + flower shoots; Ajuga reptans, biomass as dry weight; Ajuga reptans, proportion of flowers; Ajuga reptans, proportion of leaves; Ajuga reptans, proportion of shoots + flower shoots; Alopecurus pratensis, biomass as dry weight; Alopecurus pratensis, proportion of flowers; Alopecurus pratensis, proportion of leaves; Alopecurus pratensis, proportion of shoots + flower shoots; Anthoxanthum odoratum, biomass as dry weight; Anthoxanthum odoratum, proportion of flowers; Anthoxanthum odoratum, proportion of leaves; Anthoxanthum odoratum, proportion of shoots + flower shoots; Arrhenatherum elatius, biomass as dry weight; Arrhenatherum elatius, proportion of flowers; Arrhenatherum elatius, proportion of leaves; Arrhenatherum elatius, proportion of shoots + flower shoots; Avenula pubescens, biomass as dry weight; Avenula pubescens, proportion of flowers; Avenula pubescens, proportion of leaves; Avenula pubescens, proportion of shoots + flower shoots; Bellis perennis, biomass as dry weight; Bellis perennis, proportion of flowers; Bellis perennis, proportion of leaves; Bellis perennis, proportion of shoots + flower shoots; Campanula patula, biomass as dry weight; Campanula patula, proportion of flowers; Campanula patula, proportion of leaves; Campanula patula, proportion of shoots + flower shoots; Crepis biennis, biomass as dry weight; Crepis biennis, proportion of flowers; Crepis biennis, proportion of leaves; Crepis biennis, proportion of shoots + flower shoots; Cynosurus cristatus, biomass as dry weight; Cynosurus cristatus, proportion of flowers; Cynosurus cristatus, proportion of leaves; Cynosurus cristatus, proportion of shoots + flower shoots; Date/time end; Date/time start; Dead plant material, biomass as dry weight; EXP; Experiment; Experimental plot; Festuca pratensis, biomass as dry weight; Festuca pratensis, proportion of flowers; Festuca pratensis, proportion of leaves; Festuca pratensis, proportion of shoots + flower shoots; Festuca rubra, biomass as dry weight; Festuca rubra, proportion of flowers; Festuca rubra, proportion of leaves; Festuca rubra, proportion of shoots + flower shoots; Galium mollugo, biomass as dry weight; Galium mollugo, proportion of flowers; Galium mollugo, proportion of leaves; Galium mollugo, proportion of shoots + flower shoots; Geranium pratense, biomass as dry weight; Geranium pratense, proportion of flowers; Geranium pratense, proportion of leaves; Geranium pratense, proportion of shoots + flower shoots; Glechoma hederacea, biomass as dry weight; Glechoma hederacea, proportion of flowers; Glechoma hederacea, proportion of leaves; Glechoma hederacea, proportion of shoots + flower shoots; Grasses; HEIGHT above ground; Height aboveground, maximum; Height aboveground, minimum; Heracleum sphondylium, biomass as dry weight; Heracleum sphondylium, proportion of flowers; Heracleum sphondylium, proportion of leaves; Heracleum sphondylium, proportion of shoots + flower shoots; Herbs; Jena-Ecotron Experiment; Jena Experiment 2012; JenExp; JenExp_2012; Knautia arvensis, biomass as dry weight; Knautia arvensis, proportion of flowers; Knautia arvensis, proportion of leaves; Knautia arvensis, proportion of shoots + flower shoots; Lathyrus pratensis, biomass as dry weight; Lathyrus pratensis, proportion of flowers; Lathyrus pratensis, proportion of leaves; Lathyrus pratensis, proportion of shoots + flower shoots; Legumes; Lotus corniculatus, biomass as dry weight; Lotus corniculatus, proportion of flowers; Lotus corniculatus, proportion of leaves; Lotus corniculatus, proportion of shoots + flower shoots; Medicago x varia, biomass as dry weight; Medicago x varia, proportion of flowers; Medicago x varia, proportion of leaves; Medicago x varia, proportion of shoots + flower shoots; Onobrychis viciifolia, biomass as dry weight; Onobrychis viciifolia, proportion of flowers; Onobrychis viciifolia, proportion of leaves; Onobrychis viciifolia, proportion of shoots + flower shoots; Pimpinella major, biomass as dry weight; Pimpinella major, proportion of flowers; Pimpinella major, proportion of leaves; Pimpinella major, proportion of shoots + flower shoots; Plantago lanceolata, biomass as dry weight; Plantago lanceolata, proportion of flowers; Plantago lanceolata, proportion of leaves; Plantago lanceolata, proportion of shoots + flower shoots; Plantago media, biomass as dry weight; Plantago media, proportion of flowers; Plantago media, proportion of leaves; Plantago media, proportion of shoots + flower shoots; Poa pratensis, biomass as dry weight; Poa pratensis, proportion of flowers; Poa pratensis, proportion of leaves; Poa pratensis, proportion of shoots + flower shoots; Poa trivialis, biomass as dry weight; Poa trivialis, proportion of flowers; Poa trivialis, proportion of leaves; Poa trivialis, proportion of shoots + flower shoots; Prunella vulgaris, biomass as dry weight; Prunella vulgaris, proportion of flowers; Prunella vulgaris, proportion of leaves; Prunella vulgaris, proportion of shoots + flower shoots; Ranunculus repens, biomass as dry weight; Ranunculus repens, proportion of flowers; Ranunculus repens, proportion of leaves; Ranunculus repens, proportion of shoots + flower shoots; Replicate; Rumex acetosa, biomass as dry weight; Rumex acetosa, proportion of flowers; Rumex acetosa, proportion of leaves; Rumex acetosa, proportion of shoots + flower shoots; Species diversity; Taraxacum officinale, biomass as dry weight; Taraxacum officinale, proportion of flowers; Taraxacum officinale, proportion of leaves; Taraxacum officinale, proportion of shoots + flower shoots; The Jena Experiment; Thuringia, Germany; Total plant community, biomass as dry weight; Tragopogon pratensis, biomass as dry weight; Tragopogon pratensis, proportion of flowers; Tragopogon pratensis, proportion of leaves; Tragopogon pratensis, proportion of shoots + flower shoots; Treatment: aboveground: pesticide; Treatment: below pesticide; Treatment: drought; Treatment: eartworm exclosure; Treatment: fertilizing; Treatment: molluscide; Treatment: mowing; Treatment: nematicide; Treatment: phytometers; Treatment: seed addition; Treatment: special; Treatment: weeding; Treatment: weeding history; Trifolium campestre, biomass as dry weight; Trifolium campestre, proportion of flowers; Trifolium campestre, proportion of leaves; Trifolium campestre, proportion of shoots + flower shoots; Trifolium fragiferum, biomass as dry weight; Trifolium fragiferum, proportion of flowers; Trifolium fragiferum, proportion of leaves; Trifolium fragiferum, proportion of shoots + flower shoots; Trifolium pratense, biomass as dry weight; Trifolium pratense, proportion of flowers; Trifolium pratense, proportion of leaves; Trifolium pratense, proportion of shoots + flower shoots; Trifolium repens, biomass as dry weight; Trifolium repens, proportion of flowers; Trifolium repens, proportion of leaves; Trifolium repens, proportion of shoots + flower shoots; Trisetum flavescens, biomass as dry weight; Trisetum flavescens, proportion of flowers; Trisetum flavescens, proportion of leaves; Trisetum flavescens, proportion of shoots + flower shoots; Unidentified plant material, biomass as dry weight; Veronica chamaedrys, biomass as dry weight; Veronica chamaedrys, proportion of flowers; Veronica chamaedrys, proportion of leaves; Veronica chamaedrys, proportion of shoots + flower shoots; Vicia cracca, biomass as dry weight; Vicia cracca, proportion of flowers; Vicia cracca, proportion of leaves; Vicia cracca, proportion of shoots + flower shoots; Weeds plant community, biomass as dry weight
    Type: Dataset
    Format: text/tab-separated-values, 822 data points
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