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  • 1
    Online Resource
    Online Resource
    Evapotranspiration over Heterogeneous Vegetated Surfaces : Models and Applications. (2015)
    Berlin, Heidelberg :Springer Berlin / Heidelberg,
    Details
    Keywords: Evapotranspiration. ; Electronic books.
    Type of Medium: Online Resource
    Pages: 1 online resource (163 pages)
    Edition: 1st ed.
    ISBN: 9783662461730
    Series Statement: Springer Theses Series
    URL: https://ebookcentral.proquest.com/lib/geomar/detail.action?docID=1964674
    DDC: 575.805118
    Language: English
    Note: Intro -- Supervisor's Foreword -- Abstract -- Acknowledgments -- Contents -- Figures -- Tables -- 1 Introduction -- 1.1 Research Background and Significance -- 1.2 Current Research Status -- 1.2.1 Land Surface Evapotranspiration Models -- 1.2.1.1 Ground Measurement-Based ET Models -- 1.2.1.2 Remote Sensing-Based ET Models -- 1.2.2 Current Issues -- 1.3 Research Outline -- References -- 2 Comparison of Dual-Source Evapotranspiration Models in Estimating Potential Evaporation and Transpiration -- 2.1 Introduction -- 2.2 Evapotranspiration Models -- 2.2.1 Penman-Monteith Model -- 2.2.2 Shuttleworth-Wallace Model -- 2.2.3 Two-Patch Model -- 2.2.4 TVET Model -- 2.3 Comparison Setups -- 2.4 Results and Discussion -- 2.4.1 Surfaces with Full Vegetation Cover (Case A) -- 2.4.2 Surfaces with Uniform and Partial Vegetation Cover (Case B) -- 2.4.3 Surfaces with Non-uniform and Partial Vegetation Cover (Case C) -- 2.5 Conclusion -- References -- 3 A Hybrid Dual-Source Model of Estimating Evapotranspiration over Different Ecosystems -- 3.1 Introduction -- 3.2 Model Development -- 3.3 Data and Model Evaluation Criteria -- 3.3.1 Study Site and Data -- 3.3.2 Evaluation of Model Performance -- 3.4 Results and Discussion -- 3.4.1 Model Validation -- 3.4.2 Comparison with Other Models -- 3.4.3 Evapotranspiration Components (E and T) and Its Vegetation Controls -- 3.4.4 Advantages of the Hybrid Dual-Source Model -- 3.5 Conclusion -- References -- 4 A Hybrid Dual-Source Scheme Based Soil-Plant-Atmosphere Continuum Model (HDS-SPAC) for Water and Heat Dynamics -- 4.1 Introduction -- 4.2 Model Development -- 4.2.1 Surface Energy Budget -- 4.2.2 Canopy Interception -- 4.2.3 Soil Water/Heat Dynamics -- 4.2.4 Root Water Uptake -- 4.2.5 Outline of Calculation Procedure and Numerical Solution -- 4.3 Model Application in Agricultural Ecosystem -- 4.3.1 Site and Data. , 4.3.2 Results and Discussion -- 4.3.2.1 Evaporation and Transpiration -- 4.3.2.2 Canopy Interception -- 4.3.2.3 Soil Water Content -- 4.3.2.4 Soil Temperature -- 4.4 Model Application in Natural Forest Ecosystem -- 4.4.1 Site and Data -- 4.4.2 Determination of the Stress Function for Root Water Uptake -- 4.4.3 Results and Discussion -- 4.5 Conclusion -- References -- 5 A Hybrid Dual-Source Scheme and Trapezoid Framework Based Evapotranspiration Model (HTEM) Using Satellite Images -- 5.1 Introduction -- 5.2 Model Development -- 5.2.1 Hybrid Dual-Source Scheme -- 5.2.2 Vegetation Index-Land Surface Temperature Trapezoidal Space -- 5.3 Model Validation at SMACEX (USA) -- 5.3.1 Site and Data -- 5.3.2 Results -- 5.3.2.1 Validation at Flux Sites -- 5.3.2.2 Spatial Distribution of Estimated LE from HTEM -- 5.3.3 Comparison with Other Models -- 5.3.4 Sensitivity Analysis -- 5.4 Model Validation at Weishan (China) -- 5.4.1 Site and Data -- 5.4.2 Results -- 5.4.2.1 Validation at Flux Site -- 5.4.2.2 Processes of Evaporation and Transpiration -- 5.4.3 Comparison with Other Models -- 5.5 Conclusion -- References -- 6 Remote Sensing Temporal and Spatial Patterns of Evapotranspiration and the Responses to Water Management in a Large Irrigation District of North China -- 6.1 Introduction -- 6.2 Study Site and Data -- 6.2.1 Study Area -- 6.2.2 Data Sources -- 6.3 Evaluation of HTEM Performance -- 6.4 Results and Discussion -- 6.4.1 Model Validation -- 6.4.2 Spatial ET Pattern -- 6.4.3 Evapotranspiration Over Agriculture Land -- 6.4.4 Evapotranspiration Over Other Land Use Type -- 6.4.5 Evaluation of the Benefit of Water-Saving Rehabilitation -- 6.5 Conclusions -- References -- 7 A Novel Method for Estimating Terrestrial Evapotranspiration by Exploiting the Linkage Between Water and Carbon Cycles -- 7.1 Introduction -- 7.2 Site, Data and Methods. , 7.2.1 Flux Site Data -- 7.2.2 Remote Sensing Data -- 7.2.3 Ecosystem Water Use Efficiency -- 7.2.4 ET Estimation -- 7.3 Results and Discussion -- 7.4 Conclusion -- References -- 8 Conclusions, Limitations and Recommendation for Future Research -- 8.1 Conclusions -- 8.2 Limitations of Current Research and Recommendations for Future Research.
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  • 2
    Online Resource
    Online Resource
    Evapotranspiration Over Heterogeneous Vegetated Surfaces : Models and Applications (2015)
    Berlin, Heidelberg : Springer
    Details Availability
    Keywords: Environmental sciences ; Ecology ; Environment ; Remote sensing ; Environmental geology. ; Hydrology. ; Meteorology. ; Geoecology. ; Evapotranspiration ; Satellitenfernerkundung ; Mathematisches Modell
    Description / Table of Contents: The focus of this work is the development of models to estimate evapotranspiration (ET), investigating the partitioning between soil evaporation and plant transpiration at field and regional scales, and calculating ET over heterogeneous vegetated surfaces. Different algorithms with varying complexities as well as spatial and temporal resolutions are developed to estimate evapotranspiration from different data inputs. The author proposes a novel approach to estimate ET from remote sensing by exploiting the linkage between water and carbon cycles. At the field scale, a hybrid dual source model (H-D model) is proposed. It is verified with field observations over four different ecosystems and coupled with a soil water and heat transfer model, to simulate water and heat transfer in the soil-plant-atmosphere continuum. At the regional scale, a hybrid dual source scheme and trapezoid framework based ET model (HTEM), using remote sensing images is developed. This model is verified with data from the USA and China and the impact of agricultural water-saving on ET of different land use types is analyzed, in these chapters. The author discusses the potential of using a remote sensing ET model in the real management of water resources in a large irrigation district. This work would be of particular interest to any hydrologist or micro-meteorologist who works on ET estimation and it will also appeal to the ecologist who works on the coupled water and carbon cycles. Land evapotranspiration is an important research topic in hydrology, meteorology, ecology and agricultural sciences. Dr. Yuting Yang works at the CSIRO Land and Water, Canberra, Australia.
    Type of Medium: Online Resource
    Pages: Online-Ressource (XXVI, 145 p. 65 illus., 36 illus. in color, online resource)
    ISBN: 9783662461730
    Series Statement: Springer Theses, Recognizing Outstanding Ph.D. Research
    URL: https://doi.org/10.1007/978-3-662-46173-0
    URL: https://swbplus.bsz-bw.de/bsz425836460cov.jpg
    DOI: 10.1007/978-3-662-46173-0
    Language: English
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  • 3
    Electronic Resource
    Electronic Resource
    Complex between nidogen and laminin fragments reveals a paradigmatic β-propeller interface (2003)
    [s.l.] : Macmillian Magazines Ltd.
    Nature 424 (2003), S. 969-974 
    Details
    ISSN: 1476-4687
    Source: Nature Archives 1869 - 2009
    Topics: Biology , Chemistry and Pharmacology , Medicine , Natural Sciences in General , Physics
    Notes: [Auszug] Basement membranes are fundamental to tissue organization and physiology in all metazoans. The interaction between laminin and nidogen is crucial to the assembly of basement membranes. The structure of the interacting domains reveals a six-bladed Tyr-Trp-Thr-Asp (YWTD) β-propeller domain ...
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1038/nature01873
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  • 4
    Electronic Resource
    Electronic Resource
    The POT1–TPP1 telomere complex is a telomerase processivity factor (2007)
    [s.l.] : Nature Publishing Group
    Nature 445 (2007), S. 506-510 
    Details
    ISSN: 1476-4687
    Source: Nature Archives 1869 - 2009
    Topics: Biology , Chemistry and Pharmacology , Medicine , Natural Sciences in General , Physics
    Notes: [Auszug] Telomeres were originally defined as chromosome caps that prevent the natural ends of linear chromosomes from undergoing deleterious degradation and fusion events. POT1 (protection of telomeres) protein binds the single-stranded G-rich DNA overhangs at human chromosome ends and suppresses unwanted ...
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1038/nature05454
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  • 5
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    Permafrost, Active Layer Thickness and Soil Organic Carbon Maps over the Tibetan Plateau (2019)
    PANGAEA
    In:  Supplement to: Wang, Taihua; Yang, Dawen; Yang, Yuting; Piao, Shilong; Li, Xin; Cheng, Guodong; Fu, Bojie (2020): Permafrost thawing puts the frozen carbon at risk over the Tibetan Plateau. Science Advances, 6(19), eaaz3513, https://doi.org/10.1126/sciadv.aaz3513
    Details
    Publication Date: 2023-07-19
    Description: Using recent observations of mean annual ground temperature (MAGT) at or near (the closest to) the depth of zero annual amplitude, active layer thickness (ALT) and soil organic carbon (SOC) at different depth measured during the baseline period (2006-2015) over the Tibetan Plateau (TP), we estimated the permafrost distribution over TP, as well as the ALT and SOC distribution across the TP permafrost region during the same period using data-driven approaches.
    Keywords: active layer; MULT; Multiple investigations; Permafrost; soil organic carbon; TibetanPlateau; Tibetan Plateau
    Type: Dataset
    Format: application/zip, 4.1 MBytes
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  • 6
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    Sensitive Detection of Polycyclic Aromatic Molecules: Surface Enhanced Raman Scattering via π–π Stacking (2016)
    American Chemical Society (ACS)
    Details
    Publication Date: 2016-04-02
    Description: Analytical Chemistry DOI: 10.1021/acs.analchem.5b04487
    Print ISSN: 0003-2700
    Electronic ISSN: 1520-6882
    Topics: Chemistry and Pharmacology
    Published by American Chemical Society (ACS)
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  • 7
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    Excessive afforestation and soil drying on China's Loess Plateau (2018)
    Wiley-Blackwell
    Details
    Publication Date: 2018-02-24
    Description: Afforestation and deforestation as human disturbances to vegetation have profound impacts on eco-hydrological processes influencing both water and carbon cycles and ecosystem sustainability. Since 1999, large scale revegetation activities such as “Grain-to-Green Program” have been implemented across China's Loess Plateau. However, negative eco-hydrological consequences, including streamflow decline and soil drying have emerged. Here, we estimate the equilibrium vegetation cover over the Loess Plateau based on an eco-hydrological model and assess the water balance under the equilibrium and actual vegetation cover over the past decade. Results show that the current vegetation cover (0.48 on average) has already exceeded the climate-defined equilibrium vegetation cover (0.43 on average) in many parts of the Loess Plateau, especially in the middle-to-east regions. This indicates a widespread over-planting, which is found to primarily responsible for soil drying in the area. Additionally, both the equilibrium vegetation cover and soil moisture tend to decrease under future (i.e., 2011-2050) climate scenarios due to declined atmospheric water supply (i.e., precipitation) and increased atmospheric water demand (i.e., potential evapotranspiration). Our findings suggest that further revegetation on the Loess Plateau should be applied with caution. To maintain a sustainable eco-hydrological environment in the region, a revegetation threshold is urgently needed to guide future revegetation activities.
    Print ISSN: 0148-0227
    Topics: Biology , Geosciences
    Published by Wiley-Blackwell on behalf of American Geophysical Union (AGU).
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  • 8
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    LncRNA ZFAS1 as a SERCA2a Inhibitor to Cause Intracellular Ca2+ Overload and Contractile Dysfunction in a Mouse Model of Myocardial InfarctionNovelty and Significance [Cellular Biology] (2018)
    American Heart Association (AHA)
    Details
    Publication Date: 2018-05-11
    Description: Rationale:Ca2+ homeostasis—a critical determinant of cardiac contractile function—is critically regulated by SERCA2a (sarcoplasmic reticulum Ca2+-ATPase 2a). Our previous study has identified ZFAS1 as a new lncRNA biomarker of acute myocardial infarction (MI).Objective:To evaluate the effects of ZFAS1 on SERCA2a and the associated Ca2+ homeostasis and cardiac contractile function in the setting of MI.Methods and Results:ZFAS1 expression was robustly increased in cytoplasm and sarcoplasmic reticulum in a mouse model of MI and a cellular model of hypoxia. Knockdown of endogenous ZFAS1 by virus-mediated silencing shRNA partially abrogated the ischemia-induced contractile dysfunction. Overexpression of ZFAS1 in otherwise normal mice created similar impairment of cardiac function as that observed in MI mice. Moreover, at the cellular level, ZFAS1 overexpression weakened the contractility of cardiac muscles. At the subcellular level, ZFAS1 deleteriously altered the Ca2+ transient leading to intracellular Ca2+ overload in cardiomyocytes. At the molecular level, ZFAS1 was found to directly bind SERCA2a protein and to limit its activity, as well as to repress its expression. The effects of ZFAS1 were readily reversible on knockdown of this lncRNA. Notably, a sequence domain of ZFAS1 gene that is conserved across species mimicked the effects of the full-length ZFAS1. Mutation of this domain or application of an antisense fragment to this conserved region efficiently canceled out the deleterious actions of ZFAS1. ZFAS1 had no significant effects on other Ca2+-handling regulatory proteins.Conclusions:ZFAS1 is an endogenous SERCA2a inhibitor, acting by binding to SERCA2a protein to limit its intracellular level and inhibit its activity, and a contributor to the impairment of cardiac contractile function in MI. Therefore, anti-ZFAS1 might be considered as a new therapeutic strategy for preserving SERCA2a activity and cardiac function under pathological conditions of the heart.
    Keywords: Chronic Ischemic Heart Disease, Myocardial Infarction
    Print ISSN: 0009-7330
    Electronic ISSN: 1524-4571
    Topics: Medicine
    Published by American Heart Association (AHA)
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  • 9
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    Genes, Vol. 8, Pages 235: Genome-Wide Analysis of the Biosynthesis and Deactivation of Gibberellin-Dioxygenases Gene Family in Camellia sinensis (L.) O. Kuntze (2017)
    Molecular Diversity Preservation International (MDPI)
    In: Genes
    Details
    Publication Date: 2017-09-20
    Description: Genes, Vol. 8, Pages 235: Genome-Wide Analysis of the Biosynthesis and Deactivation of Gibberellin-Dioxygenases Gene Family in Camellia sinensis (L.) O. Kuntze Genes doi: 10.3390/genes8090235 Authors: Cheng Pan Kunhong Tian Qiuyan Ban Leigang Wang Qilu Sun Yan He Yuanfei Yang Yuting Pan Yeyun Li Jiayue Jiang Changjun Jiang Gibberellins (GAs), a class of diterpenoid phytohormones, play a key role in regulating diverse processes throughout the life cycle of plants. Bioactive GA levels are rapidly regulated by Gibberellin-dioxygenases (GAox), which are involved in the biosynthesis and deactivation of gibberellin. In this manuscript, a comprehensive genome-wide analysis was carried out to find all GAox in Camellia sinensis. For the first time in a tea plant, 14 CsGAox genes, containing two domains, DIOX_N (PF14226) and 2OG-FeII_Oxy, were identified (PF03171). These genes all belong to 2-oxoglutarate-dependent dioxygenases (2-ODD), including four CsGA20ox (EC: 1.14.11.12), three CsGA3ox (EC: 1.14.11.15), and seven CsGA2ox (EC: 1.14.11.13). According to the phylogenetic classification as in Arabidopsis, the CsGAox genes spanned five subgroups. Each CsGAox shows tissue-specific expression patterns, although these vary greatly. Some candidate genes, which may play an important role in response to external abiotic stresses, have been identified with regards to patterns, such as CsGA20ox2, CsGA3ox2, CsGA3ox3, CsGA2ox1, CsGA2ox2, and CsGA2ox4. The bioactive GA levels may be closely related to the GA20ox, GA3ox and GA2ox genes. In addition, the candidate genes could be used as marker genes for abiotic stress resistance breeding in tea plants.
    Electronic ISSN: 2073-4425
    Topics: Biology
    Published by Molecular Diversity Preservation International (MDPI)
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  • 10
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    Partitioning global land evapotranspiration using CMIP5 models constrained by observations (2018)
    Springer Nature
    Details
    Publication Date: 2018-06-30
    Description: Partitioning global land evapotranspiration using CMIP5 models constrained by observations Partitioning global land evapotranspiration using CMIP5 models constrained by observations, Published online: 29 June 2018; doi:10.1038/s41558-018-0207-9 The ratio of plant transpiration to total terrestrial evapotranspiration (T/ET) captures the role of vegetation in surface–atmosphere interactions. An emergent constraint approach strongly increases existing model T/ET estimates with implications for river flows.
    Print ISSN: 1758-678X
    Electronic ISSN: 1758-6798
    Topics: Geosciences
    Published by Springer Nature
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