Description: Introduction   The paper analyses the environment pollution state in different case studies of economic activities (i.e. co-generation electric and thermal power production, iron profile manufacturing, cement processing, waste landfilling, and wood furniture manufacturing), evaluating mainly the environmental cumulative impacts (e.g. cumulative impact against the health of the environment and different life forms). Materials and methods   The status of the environment (air, water resources, soil, and noise) is analysed with respect to discharges such as gaseous discharges in the air, final effluents discharged in natural receiving basins or sewerage system, and discharges onto the soil together with the principal pollutants expressed by different environmental indicators corresponding to each specific productive activity. The alternative methodology of global pollution index ( I GP * ) for quantification of environmental impacts is applied. Results and discussion   Environmental data analysis permits the identification of potential impact, prediction of significant impact, and evaluation of cumulative impact on a commensurate scale by evaluation scores (ES i ) for discharge quality, and global effect to the environment pollution state by calculation of the global pollution index ( I GP * ). Conclusions   The I GP * values for each productive unit (i.e. 1.664–2.414) correspond to an ‘environment modified by industrial/economic activity within admissible limits, having potential of generating discomfort effects’. The evaluation results are significant in view of future development of each productive unit and sustain the economic production in terms of environment protection with respect to a preventive environment protection scheme and continuous measures of pollution control. Content Type Journal Article Category Short Research and Discussion Article Pages 1-8 DOI 10.1007/s11356-012-0883-3 Authors Carmen Zaharia, Department of Environmental Engineering and Management, Faculty of Chemical Engineering and Environmental Protection, ‘Gheorghe Asachi’ Technical University of Iasi, 73 Prof. Dr. docent D. Mangeron Blvd, 700050 Iasi, Romania Journal Environmental Science and Pollution Research Online ISSN 1614-7499 Print ISSN 0944-1344

Description: The need for an integrated approach to the global challenge of POPs management Content Type Journal Article Category Editorial Pages 1-6 DOI 10.1007/s11356-012-1247-8 Authors Roland Weber, International HCH and Pesticide Association, Elmevej 14, 2840 Holte, Denmark Gulchohra Aliyeva, International HCH and Pesticide Association, Elmevej 14, 2840 Holte, Denmark John Vijgen, International HCH and Pesticide Association, Elmevej 14, 2840 Holte, Denmark Journal Environmental Science and Pollution Research Online ISSN 1614-7499 Print ISSN 0944-1344

Description: Purpose   The main goal of this paper was to analyse the environmental profile of a structural component of a wooden house: a ventilated wooden wall, by combining two environmental methodologies: one quantitative, the life cycle assessment (LCA) and another qualitative, the design for the environment (DfE). Methods   The LCA study covers the whole life cycle of the ventilated wall manufacture as well as its distribution, installation and maintenance. To carry out this analysis, a Galician wood company was assessed in detail, dividing the process into four stages: the assembling stage, the packing stage, the distribution to clients as well as the final installation and maintenance of the wooden wall. Ten impact categories have been assessed in detail in the LCA study: abiotic depletion (AD), acidification (AC), eutrophication (EP), global warming (GW), ozone layer depletion (OD), human toxicity (HT), fresh water aquatic ecotoxicity (FE), marine aquatic ecotoxicity (ME), terrestrial ecotoxicity (TE) and photochemical oxidant formation (PO). Results and discussion   According to the environmental results, the assembling stage was the most important contributor to the environmental profile with contributions from 57% to 87%, followed by the production of the electricity required. The detailed analysis of the assembling stage identified the most important environmental hot spots: the production of boards used in the structure [oriented strand board and medium density fibreboard (MDF)] as well as the transportation of the cedar sheets from Brazil. Concerning the results of the DfE, a selection of different eco-design strategies was proposed from technological, economic and social points of view by an interdisciplinary team of researchers and company´s workers. The eco-design strategy considered the following improvement actions: (i) the substitution of the MDF in the wall structure; (ii) the use of German red pine sheets; (iii) the installation of solar panels in the facilities; (iv) the use of Euro 5 transport vehicles, (v) the use of biodiesel for transport; (vi) the definition of a maintenance protocol for the wooden materials; and (vii) the definition of a protocol for the separation of materials before disposal. Conclusions   The results obtained in this work allow predicting the influence of the selection and origin of the raw materials used on the environmental burdens associated with the process. Future work will focus on the manufacturing of a prototype of an eco-designed ventilated wooden wall. Content Type Journal Article Category WOOD AND OTHER RENEWABLE RESOURCES Pages 1-12 DOI 10.1007/s11367-012-0384-0 Authors Sara González-García, Department of Life Sciences, Division of Biology, Imperial College of London, South Kensington Campus, Sir Alexander Fleming Buildings, London, SW7 2AZ UK Raúl García Lozano, SosteniPrA (UAB-IRTA-Inèdit), Institute of Environmental Science and Technology (ICTA), School of Engineering, Universitat Autònoma de Barcelona (UAB), Campus de la UAB, Bellaterra (Cerdanyola del Vallès), 08193 Barcelona, Catalonia, Spain Javier Costas Estévez, Quality Management Department, Las cinco Jotas, Avda. Camelias No 1, 6203 Vigo, Spain Rosario Castilla Pascual, Innovation and Technology Area, CIS MADEIRA, Galician Park of Technology, Avenida de Galicia 5, San Cibrao das Viñas, 32901 Ourense, Spain Ma. Teresa Moreira, Department of Chemical Engineering, School of Engineering, University of Santiago de Compostela, 15782 Santiago de Compostela, Spain Xavier Gabarrell, SosteniPrA (UAB-IRTA-Inèdit), Institute of Environmental Science and Technology (ICTA), School of Engineering, Universitat Autònoma de Barcelona (UAB), Campus de la UAB, Bellaterra (Cerdanyola del Vallès), 08193 Barcelona, Catalonia, Spain Joan Rieradevall i Pons, SosteniPrA (UAB-IRTA-Inèdit), Institute of Environmental Science and Technology (ICTA), School of Engineering, Universitat Autònoma de Barcelona (UAB), Campus de la UAB, Bellaterra (Cerdanyola del Vallès), 08193 Barcelona, Catalonia, Spain Gumersindo Feijoo, Department of Chemical Engineering, School of Engineering, University of Santiago de Compostela, 15782 Santiago de Compostela, Spain Journal The International Journal of Life Cycle Assessment Online ISSN 1614-7502 Print ISSN 0948-3349

Description: Purpose   At present, many urban areas in Mediterranean climates are coping with water scarcity, facing a growing water demand and a limited conventional water supply. Urban design and planning has so far largely neglected the benefits of rainwater harvesting (RWH) in the context of a sustainable management of this resource. Therefore, the purpose of this study was to identify the most environmentally friendly strategy for rainwater utilization in Mediterranean urban environments of different densities. Materials and methods   The RWH systems modeled integrate the necessary infrastructures for harvesting and using rainwater in newly constructed residential areas. Eight scenarios were defined in terms of diffuse (D) and compact (C) urban models and the tank locations ((1) underground tank, (2) below-roof tank, (3) distributed-over-roof tank, and (4) block tank). The structural and hydraulic sizing of the catchment, storage, and distribution subsystems was taken into account using an average Mediterranean rainfall, the area of the harvesting surfaces, and a constant water demand for laundry. The quantification of environmental impacts was performed through a life cycle assessment, using CML 2001 Baseline method. The necessary materials and processes were considered in each scenario according to the lifecycle stages (i.e., materials, construction, transportation, use, and deconstruction) and subsystems. Results and discussion   The environmental characterization indicated that the best scenario in both urban models is the distributed-over-roof tank (D3, C3), which provided a reduction in impacts compared to the worst scenario of up to 73% in diffuse models and even higher in compact ones, 92% in the most dramatic case. The lower impacts are related to the better distribution of tank weight on the building, reducing the reinforcement requirements, and enabling energy savings. The storage subsystem and the materials stage contributed most significantly to the impacts in both urban models. In the compact density model, the underground-tank scenario (C1) presented the largest impacts in most categories due to its higher energy consumption. Additionally, more favorable environmental results were observed in compact densities than in diffuse ones for the Global Warming Potential category along with higher water efficiencies. Conclusions   The implementation of one particular RWH scenario over another is not irrelevant in drought-stress environments. Selecting the most favorable scenario in the development of newly constructed residential areas provides significant savings in CO 2 emissions in comparison with retrofit strategies. Therefore, urban planning should consider the design of RWH infrastructures using environmental criteria in addition to economic, social, and technological factors, adjusting the design to the potential uses for which the rainwater is intended. Recommendations and perspectives   Additional research is needed to quantify the energy savings associated with the insulation caused by using the tank distributed over the roof. The integration of the economic and social aspects of these infrastructures in the analysis, from a life cycle approach, is necessary for targeting the planning and design of more sustainable cities in an integrated way. Content Type Journal Article Category WATER USE IN LCA Pages 1-18 DOI 10.1007/s11367-011-0330-6 Authors Sara Angrill, Sostenipra (ICTA-IRTA-Inèdit), Institute of Environmental Science and Technology (ICTA), School of Engineering (EE), Universitat Autònoma de Barcelona (UAB), Campus of the UAB, 08193 Bellaterra (Cerdanyola del Vallès), Barcelona, Catalonia, Spain Ramon Farreny, Sostenipra (ICTA-IRTA-Inèdit), Institute of Environmental Science and Technology (ICTA), School of Engineering (EE), Universitat Autònoma de Barcelona (UAB), Campus of the UAB, 08193 Bellaterra (Cerdanyola del Vallès), Barcelona, Catalonia, Spain Carles M. Gasol, Sostenipra (ICTA-IRTA-Inèdit), Institute of Environmental Science and Technology (ICTA), School of Engineering (EE), Universitat Autònoma de Barcelona (UAB), Campus of the UAB, 08193 Bellaterra (Cerdanyola del Vallès), Barcelona, Catalonia, Spain Xavier Gabarrell, Sostenipra (ICTA-IRTA-Inèdit), Institute of Environmental Science and Technology (ICTA), School of Engineering (EE), Universitat Autònoma de Barcelona (UAB), Campus of the UAB, 08193 Bellaterra (Cerdanyola del Vallès), Barcelona, Catalonia, Spain Bernat Viñolas, Department of Geotechnical Engineering and Geosciences, School of Civil Engineering (ETSECCPB), Technical University of Catalonia—Barcelona Tech (UPC), Campus Nord, C/ Jordi Girona 1-3, Building D2, 08034 Barcelona, Catalonia, Spain Alejandro Josa, Department of Geotechnical Engineering and Geosciences, School of Civil Engineering (ETSECCPB), Technical University of Catalonia—Barcelona Tech (UPC), Campus Nord, C/ Jordi Girona 1-3, Building D2, 08034 Barcelona, Catalonia, Spain Joan Rieradevall, Sostenipra (ICTA-IRTA-Inèdit), Institute of Environmental Science and Technology (ICTA), School of Engineering (EE), Universitat Autònoma de Barcelona (UAB), Campus of the UAB, 08193 Bellaterra (Cerdanyola del Vallès), Barcelona, Catalonia, Spain Journal The International Journal of Life Cycle Assessment Online ISSN 1614-7502 Print ISSN 0948-3349

Description: Introduction   The Consolider-Ingenio 2010 project SCARCE, with the full title “Assessing and predicting effects on water quantity and quality in Iberian Rivers caused by global change” aims to examine and predict the relevance of global change on water availability, water quality, and ecosystem services in Mediterranean river basins of the Iberian Peninsula, as well as their socio-economic impacts. Starting in December 2009, it brought together a multidisciplinary team of 11 partner Spanish institutions, as well as the active involvement of water authorities, river basin managers, and other relevant agents as stakeholders. Methods   The study areas are the Llobregat, Ebro, Jucar, and Guadalquivir river basins. These basins have been included in previous studies and projects, the majority of whom considered some of the aspects included in SCARCE but individually. Historical data will be used as a starting point of the project but also to obtain longer time series. The main added value of SCARCE project is the inclusion of scientific disciplines ranging from hydrology, geomorphology, ecology, chemistry, and ecotoxicology, to engineering, modeling, and economy, in an unprecedented effort in the Mediterranean area. The project performs data mining, field, and lab research as well as modeling and upscaling of the findings to apply them to the entire river basin. Results   Scales ranging from the laboratory to river basins are addressed with the potential to help improve river basin management. The project emphasizes, thus, linking basic research and management practices in a single framework. In fact, one of the main objectives of SCARCE is to act as a bridge between the scientific and the management and to transform research results on management keys and tools for improving the River Basin Management Plans. Here, we outline the general structure of the project and the activities conducted within the ten Work Packages of SCARCE. Content Type Journal Article Category Research Article Pages 918-933 DOI 10.1007/s11356-011-0566-5 Authors Alícia Navarro-Ortega, IDAEA-CSIC, Jordi Girona, 18-26, 08034 Barcelona, Spain Vicenç Acuña, ICRA, Edifici H2O, Emili Grahit, 101, 17003 Girona, Spain Ramon J. Batalla, UdL/CTFC, Alcalde Rovira Roure 191, 25198 Lleida, Spain Julián Blasco, ICMAN-CSIC, Campus Rio San Pedro, 11510 Puerto Real, Cádiz, Spain Carlos Conde, UPM, Avda. Ramiro de Maeztu 7, 28040 Madrid, Spain Francisco J. Elorza, UPM, Avda. Ramiro de Maeztu 7, 28040 Madrid, Spain Arturo Elosegi, UPV/EHU, Barrio Sarriena s/n, 48940 Leioa, Spain Félix Francés, UPV, Camino de Vera s/n, Valencia, Spain Francesc La-Roca, UV, Avda. Blasco Ibáñez 13, Valencia, Spain Isabel Muñoz, UB, Av. Diagonal, 645, 08028 Barcelona, Spain Mira Petrovic, ICRA, Edifici H2O, Emili Grahit, 101, 17003 Girona, Spain Yolanda Picó, UV, Avda. Blasco Ibáñez 13, Valencia, Spain Sergi Sabater, ICRA, Edifici H2O, Emili Grahit, 101, 17003 Girona, Spain Xavier Sanchez-Vila, UPC, Carrer Jordi Girona 31, Barcelona, Spain Marta Schuhmacher, ETSEQ, URV, Campus Sescelades, 43007 Tarragona, Spain Damià Barceló, IDAEA-CSIC, Jordi Girona, 18-26, 08034 Barcelona, Spain Journal Environmental Science and Pollution Research Online ISSN 1614-7499 Print ISSN 0944-1344 Journal Volume Volume 19 Journal Issue Volume 19, Number 4

Description: Purpose   Land use is a main driver of global biodiversity loss and its environmental relevance is widely recognized in research on life cycle assessment (LCA). The inherent spatial heterogeneity of biodiversity and its non-uniform response to land use requires a regionalized assessment, whereas many LCA applications with globally distributed value chains require a global scale. This paper presents a first approach to quantify land use impacts on biodiversity across different world regions and highlights uncertainties and research needs. Methods   The study is based on the United Nations Environment Programme (UNEP)/Society of Environmental Toxicology and Chemistry (SETAC) land use assessment framework and focuses on occupation impacts, quantified as a biodiversity damage potential (BDP). Species richness of different land use types was compared to a (semi-)natural regional reference situation to calculate relative changes in species richness. Data on multiple species groups were derived from a global quantitative literature review and national biodiversity monitoring data from Switzerland. Differences across land use types, biogeographic regions (i.e., biomes), species groups and data source were statistically analyzed. For a data subset from the biome (sub-)tropical moist broadleaf forest, different species-based biodiversity indicators were calculated and the results compared. Results and discussion   An overall negative land use impact was found for all analyzed land use types, but results varied considerably. Different land use impacts across biogeographic regions and taxonomic groups explained some of the variability. The choice of indicator also strongly influenced the results. Relative species richness was less sensitive to land use than indicators that considered similarity of species of the reference and the land use situation. Possible sources of uncertainty, such as choice of indicators and taxonomic groups, land use classification and regionalization are critically discussed and further improvements are suggested. Data on land use impacts were very unevenly distributed across the globe and considerable knowledge gaps on cause–effect chains remain. Conclusions   The presented approach allows for a first rough quantification of land use impact on biodiversity in LCA on a global scale. As biodiversity is inherently heterogeneous and data availability is limited, uncertainty of the results is considerable. The presented characterization factors for BDP can approximate land use impacts on biodiversity in LCA studies that are not intended to directly support decision-making on land management practices. For such studies, more detailed and site-dependent assessments are required. To assess overall land use impacts, transformation impacts should additionally be quantified. Therefore, more accurate and regionalized data on regeneration times of ecosystems are needed. Content Type Journal Article Category GLOBAL LAND USE IMPACTS ON BIODIVERSITY AND ECOSYSTEM SERVICES IN LCA Pages 1-15 DOI 10.1007/s11367-012-0412-0 Authors Laura de Baan, Institute for Environmental Decisions, Natural and Social Science Interface, ETH Zurich, Universitaetsstr. 22, 8092 Zurich, Switzerland Rob Alkemade, PBL Netherlands Environmental Assessment Agency, P. O. Box 303, 3720 AH Bilthoven, The Netherlands Thomas Koellner, Professorship of Ecological Services, Faculty of Biology, Chemistry and Geosciences, University of Bayreuth, GEO II, Room 1.17, Universitaetsstr. 30, 95440 Bayreuth, Germany Journal The International Journal of Life Cycle Assessment Online ISSN 1614-7502 Print ISSN 0948-3349

Description:    Gross primary productivity (GPP) is a major component of carbon exchange between the atmosphere and terrestrial ecosystems and a key component of the terrestrial carbon cycle. Because of the large spatial heterogeneity and temporal dynamics of ecosystems, it is a challenge to estimate GPP accurately at global or regional scales. The 8-day MODerate resolution Imaging Spectroradiometer (MODIS) GPP product provides a near real time estimate of global GPP. However, previous studies indicated that MODIS GPP has large uncertainties, partly caused by biases in parameterization and forcing data. In this study, MODIS GPP was validated using GPP derived from the eddy covariance flux measurements at five typical forest sites in East Asia. The validation indicated that MODIS GPP was seriously underestimated in these forest ecosystems of East Asia, especially at northern sites. With observed meteorological data, fraction of photosynthetically active radiation absorbed by the plant canopy (fPAR) calculated using smoothed MODIS leaf area index, and optimized maximum light use efficiency ( ε max ) to force the MOD17 algorithm, the agreement between predicted GPP and tower-based GPP was significantly improved. The errors of MODIS GPP in these forest ecosystems of East Asia were mainly caused by uncertainties in ε max , followed by those in fPAR and meteorological data. The separation of canopy into sunlit and shaded leaves, for which GPP is individually calculated, can improve GPP simulation significantly. Content Type Journal Article Category Special Feature: Original Article Pages 1-10 DOI 10.1007/s10310-012-0369-7 Authors Mingzhu He, Jiangsu Provincial Key Laboratory of Geographic Information Science and Technology, International Institute for Earth System Science, Nanjing University, 901 Mengminwei Building, 22 Hankou Road, Nanjing, 210093 China Yanlian Zhou, School of Geographic and Oceanographic Sciences, Nanjing University, Nanjing, 210093 China Weimin Ju, Jiangsu Provincial Key Laboratory of Geographic Information Science and Technology, International Institute for Earth System Science, Nanjing University, 901 Mengminwei Building, 22 Hankou Road, Nanjing, 210093 China Jingming Chen, Jiangsu Provincial Key Laboratory of Geographic Information Science and Technology, International Institute for Earth System Science, Nanjing University, 901 Mengminwei Building, 22 Hankou Road, Nanjing, 210093 China Li Zhang, Key Laboratory of Ecosystem Network Observation and Modeling, Institute of Geographic Sciences and Natural Resources Research, Chinese Academy of Sciences, Beijing, 100101 China Shaoqiang Wang, Qianyanzhou Ecological Experimental Station, Institute of Geographic Sciences and Natural Resources Research, Chinese Academy of Sciences, Beijing, 100101 China Nobuko Saigusa, Center for Global Environmental Research, National Institute for Environmental Studies, 16-2 Onogawa, Tsukuba, 305-8506 Japan Ryuichi Hirata, Center for Global Environmental Research, National Institute for Environmental Studies, 16-2 Onogawa, Tsukuba, 305-8506 Japan Shohei Murayama, Research Institute for Environmental Management Technology, National Institute of Advanced Industrial Science and Technology (AIST), AIST Tsukuba West, 16-1 Onogawa, Tsukuba, 305-8569 Japan Yibo Liu, Jiangsu Provincial Key Laboratory of Geographic Information Science and Technology, International Institute for Earth System Science, Nanjing University, 901 Mengminwei Building, 22 Hankou Road, Nanjing, 210093 China Journal Journal of Forest Research Online ISSN 1610-7403 Print ISSN 1341-6979

Description: Purpose   The aim of this paper is to provide science-based consensus and guidance for health effects modelling in comparative assessments based on human exposure and toxicity. This aim is achieved by (a) describing the USEtox™ exposure and toxicity models representing consensus and recommended modelling practice, (b) identifying key mechanisms influencing human exposure and toxicity effects of chemical emissions, (c) extending substance coverage. Methods   The methods section of this paper contains a detailed documentation of both the human exposure and toxic effects models of USEtox™, to determine impacts on human health per kilogram substance emitted in different compartments. These are considered as scientific consensus and therefore recommended practice for comparative toxic impact assessment. The framework of the exposure model is described in details including the modelling of each exposure pathway considered (i.e. inhalation through air, ingestion through (a) drinking water, (b) agricultural produce, (c) meat and milk, and (d) fish). The calculation of human health effect factors for cancer and non-cancer effects via ingestion and inhalation exposure respectively is described. This section also includes discussions regarding parameterisation and estimation of input data needed, including route-to-route and acute-to-chronic extrapolations. Results and discussion   For most chemicals in USEtox™, inhalation, above-ground agricultural produce, and fish are the important exposure pathways with key driving factors being the compartment and place of emission, partitioning, degradation, bioaccumulation and bioconcentration, and dietary habits of the population. For inhalation, the population density is the key factor driving the intake, thus the importance to differentiate emissions in urban areas, except for very persistent and mobile chemicals that are taken in by the global population independently from their place of emission. The analysis of carcinogenic potency (TD 50 ) when volatile chemicals are administrated to rats and mice by both inhalation and an oral route suggests that results by one route can reasonably be used to represent another route. However, we first identify and mark as interim chemicals for which observed tumours are directly related to a given exposure route (e.g. for nasal or lung, or gastrointestinal cancers) or for which absorbed fraction by inhalation and by oral route differ greatly. Conclusions   A documentation of the human exposure and toxicity models of USEtox™ is provided, and key factors driving the human health characterisation factor are identified. Approaches are proposed to derive human toxic effect factors and expand the number of chemicals in USEtox™, primarily by extrapolating from an oral route to exposure in air (and optionally acute-to-chronic). Some exposure pathways (e.g. indoor inhalation, pesticide residues, dermal exposure) will be included in a later stage. USEtox™ is applicable in various comparative toxicity impact assessments and not limited to LCA. Content Type Journal Article Pages 1-18 DOI 10.1007/s11367-011-0316-4 Authors Ralph K. Rosenbaum, Section for Quantitative Sustainability Assessment, Department of Management Engineering, Technical University of Denmark (DTU), Produktionstorvet, Building 426, 2800 Lyngby, Denmark Mark A. J. Huijbregts, Department of Environmental Science, Radboud University Nijmegen, P.O. Box 9010, 6500 GL, Nijmegen, The Netherlands Andrew D. Henderson, Department of Environmental Health Sciences, School of Public Health, University of Michigan, Ann Arbor, MI, USA Manuele Margni, Department of Chemical Engineering, CIRAIG, École Polytechnique de Montréal, 2900 Édouard-Montpetit, P.O. Box 6079, Stn. Centre-ville, Montréal, Québec H3C 3A7, Canada Thomas E. McKone, University of California Berkeley, Lawrence Berkeley National Laboratory, Berkeley, CA 94720, USA Dik van de Meent, Department of Environmental Science, Radboud University Nijmegen, P.O. Box 9010, 6500 GL, Nijmegen, The Netherlands Michael Z. Hauschild, Section for Quantitative Sustainability Assessment, Department of Management Engineering, Technical University of Denmark (DTU), Produktionstorvet, Building 426, 2800 Lyngby, Denmark Shanna Shaked, Department of Environmental Health Sciences, School of Public Health, University of Michigan, Ann Arbor, MI, USA Ding Sheng Li, Department of Environmental Health Sciences, School of Public Health, University of Michigan, Ann Arbor, MI, USA Lois S. Gold, University of California Berkeley, and Children’s Hospital Oakland Research Institute (CHORI), Oakland, CA, USA Olivier Jolliet, Department of Environmental Health Sciences, School of Public Health, University of Michigan, Ann Arbor, MI, USA Journal The International Journal of Life Cycle Assessment Online ISSN 1614-7502 Print ISSN 0948-3349

Description: Background,   aim, and scope Fujian reservoirs in southeast China are important water resources for economic and social sustainable development, although few have been studied previously. In recent years, growing population and increasing demands for water shifted the focus of many reservoirs from flood control and irrigation water to drinking water. However, most of them showed a rapid increase in the level of eutrophication, which is one of the most serious and challenging environmental problems. In this study, we investigated the algae community characteristics, trophic state, and eutrophication control strategies for typical subtropical reservoirs in southeast Fujian. Materials and methods   Surface water samples were collected using polyvinyl chloride (PVC) plastic bottles from 11 Fujian reservoirs in summer 2010. Planktonic algae were investigated by optical microscopy. Water properties were determined according to the national standard methods. Results and discussion   Shallow reservoirs generally have higher values of trophic state index (TSI) and appear to be more susceptible to anthropogenic disturbance than deeper reservoirs. A total of 129 taxa belonging to eight phyla (i.e., Bacillariophyta, Chlorophyta, Chrysophyta, Cryptophyta, Cyanophyta, Euglenophyta, Pyrrophyta, Xanthophyta) were observed and the most diverse groups were Chlorophyta (52 taxa), Cyanophyta (20 taxa), Euglenophyta (17 taxa), Chrysophyta (14 taxa). The dominant groups were Chlorophyta (40.58%), Cyanophyta (22.91%), Bacillariophyta (21.61%), Chrysophyta (6.91%). The species richness, abundance, diversity, and evenness of algae varied significantly between reservoirs. TSI results indicated that all 11 reservoirs were eutrophic, three of them were hypereutrophic, six were middle eutrophic, and two were light eutrophic. There was a strong positive correlation between algal diversity and TSI at P  〈 0.05. Our canonical correspondence analysis (CCA) results illustrated that temperature, transparency, conductivity, DO, TC, NH 4 -N, NO x -N, TP, and chlorophyll a were significant environmental variables affecting the distribution of algae communities. The transparency and chlorophyll a were the strongest environmental factors in explaining the community data. Furthermore, the degradation of water quality associated with excess levels of nitrogen and phosphorus in Fujian reservoirs may be impacted by interactions among agriculture and urban factors. A watershed-based management strategy, especially phosphorus control, should be developed for drinking water source protection and sustainable reservoirs in the future. Conclusion and recommendations   All investigated reservoirs were eutrophicated based on the comprehensive TSI values; thus, our results provided an early warning of water degradation in Fujian reservoirs. Furthermore, the trophic state plays an important role in shaping community structure and in determining species diversity of algae. Therefore, long-term and regular monitoring of Euglenophyta, Cyanophyta, TN, TP and chlorophyll a in reservoirs is urgently needed to further understand the future trend of eutrophication and to develop a watershed-based strategy to manage the Cyanophyta bloom hazards. Content Type Journal Article Category Urbanization in China and its Environmental Impact Pages 1432-1442 DOI 10.1007/s11356-011-0683-1 Authors Jun Yang, Aquatic Ecohealth Group, Key Laboratory of Urban Environment and Health, Institute of Urban Environment, Chinese Academy of Sciences, 1799 Jimei Road, Xiamen, 361021 China Xiaoqing Yu, Aquatic Ecohealth Group, Key Laboratory of Urban Environment and Health, Institute of Urban Environment, Chinese Academy of Sciences, 1799 Jimei Road, Xiamen, 361021 China Lemian Liu, Aquatic Ecohealth Group, Key Laboratory of Urban Environment and Health, Institute of Urban Environment, Chinese Academy of Sciences, 1799 Jimei Road, Xiamen, 361021 China Wenjing Zhang, State Key Laboratory of Marine Environmental Science, Marine Biodiversity and Global Change Center, College of Ocean and Earth Sciences, Xiamen University, 108 Daxue Road, Xiamen, 361005 China Peiyong Guo, Department of Environmental Science and Engineering, College of Chemical Engineering, Huaqiao University, Xiamen, 361021 Fujian, China Journal Environmental Science and Pollution Research Online ISSN 1614-7499 Print ISSN 0944-1344 Journal Volume Volume 19 Journal Issue Volume 19, Number 5

Description:    Soil carbon stocks and sequestration have been given a lot of attention recently in the study of terrestrial ecosystems and global climate change. This review focuses on the progress made on the estimation of the soil carbon stocks of China, and the characterization of carbon dynamics of croplands with regard to climate change, and addresses issues on the mineralization of soil organic carbon in relation to greenhouse gas emissions. By integrating existing research data, China’s total soil organic carbon (SOC) stock is estimated to be 90 Pg and its inorganic carbon (SIC) stock as 60 Pg, with SOC sequestration rates in the range of 20–25 Tg/a for the last two decades. An estimation of the biophysical potential of SOC sequestration has been generally agreed as being 2 Pg over the long term, of which only 1/3 could be attainable using contemporary agricultural technologies in all of China’s croplands. Thus, it is critical to enhance SOC sequestration and mitigate climate change to improve agricultural and land use management in China. There have been many instances where SOC accumulation may not induce an increased amount of decomposition under a warming scenario but instead favor improved cropland productivity and ecosystem functioning. Furthermore, unchanged or even decreased net global warming potential (GWP) from croplands with enhanced SOC has been reported by a number of case studies using life cycle analysis. Future studies on soil carbon stocks and the sequestration potential of China are expected to focus on: (1) Carbon stocks and the sequestration capacity of the earths’ surface systems at scales ranging from the plot to the watershed and (2) multiple interface processes and the synergies between carbon sequestration and ecosystem productivity and ecosystem functioning at scales from the molecular level to agro-ecosystems. Soil carbon science in China faces new challenges and opportunities to undertake integrated research applicable to many areas. Content Type Journal Article Category Review Pages 1-11 DOI 10.1007/s11434-011-4693-7 Authors JuFeng Zheng, Institute for Resource, Ecosystem and Environment of Agriculture, and Research Center of Agriculture and Climate Change, Nanjing Agricultural University, Nanjing, 210095 China Kun Cheng, Institute for Resource, Ecosystem and Environment of Agriculture, and Research Center of Agriculture and Climate Change, Nanjing Agricultural University, Nanjing, 210095 China GenXing Pan, Institute for Resource, Ecosystem and Environment of Agriculture, and Research Center of Agriculture and Climate Change, Nanjing Agricultural University, Nanjing, 210095 China Pete Smith, Institute of Biological and Environmental Sciences, School of Biological Sciences, University of Aberdeen, 23 St Machar Drive, Aberdeen, AB24 3UU UK LianQing Li, Institute for Resource, Ecosystem and Environment of Agriculture, and Research Center of Agriculture and Climate Change, Nanjing Agricultural University, Nanjing, 210095 China XuHui Zhang, Institute for Resource, Ecosystem and Environment of Agriculture, and Research Center of Agriculture and Climate Change, Nanjing Agricultural University, Nanjing, 210095 China JinWei Zheng, Institute for Resource, Ecosystem and Environment of Agriculture, and Research Center of Agriculture and Climate Change, Nanjing Agricultural University, Nanjing, 210095 China XiaoJun Han, Institute for Resource, Ecosystem and Environment of Agriculture, and Research Center of Agriculture and Climate Change, Nanjing Agricultural University, Nanjing, 210095 China YanLing Du, Institute for Resource, Ecosystem and Environment of Agriculture, and Research Center of Agriculture and Climate Change, Nanjing Agricultural University, Nanjing, 210095 China Journal Chinese Science Bulletin Online ISSN 1861-9541 Print ISSN 1001-6538