Ecosystem service delivery in Karst landscapes: anthropogenic perturbation and recovery

查看全文 作　　者：Timothy [1]Quine;Dali [2]Guo;Sophie [1]M.Green;Chenglong [3]Tu;Iain [1]Hartley;Xinyu [2]Zhang;Jennifer [4]Dungait;Xuefa [2]Wen;Zhaoliang [5]Song;Hongyan [6]Liu;Heather [7]Buss;Timothy [1]Barrows;Richard [8]Evershed;Penny [9]Johnes;Jeroen [10]Meersmans

机构地区：[1]Geography, College of Life and Environmental Sciences,University of Exeter, Rennes Drive, Exeter EX4 4RJ, UK;[2]Institute of Geographic Sciences and Natural Resources Research, Chinese Academy of Sciences, Beijing 100101, People's Republic of China;[3]State Key Laboratory of Environmental Geochemistry, Institute of Geochemistry, Chinese Academy of Sciences, Guiyang 550081, Guizhou Province, People's Republic of China;[4]Rothamsted Research - North Wyke,Okehampton, Devon EX20 2SB, UK;[5]Institute of the Surface-Earth System Science Research, Tianjin University, Tianjin 300072, People's Republic of China;[6]College of Urban and Environmental Sciences, Peking University, Beijing 100871, People's Republic of China;[7]School of Earth Sciences, Wills Memorial Building, Queens Road, Clifton BS8 1RJ, UK;[8]School of Chemistry, University of Bristol, Cantock's Close, Clifton, Bristol BS8 1TS, UK;[9]School of Geographical Sciences, University of Bristol,University Road, Clifton, Bristol BS8 1SS, UK;[10]Cranfield Soil and Agrifood Institute, Cranfield University,Cranfield, Bedfordshire MK43 0AL, UK

出　　处：《Acta Geochimica》索引2017年第36卷第3期,共5页

基　　金：supported by the National Environmental Research Council of the UK(Grant No.NE/N007603/1);the National Science Foundation of China(Grant Nos.41571130042 and 41571130041) 摘　　要：Covering extensive parts of China, Karst landscapes are exceptional because rapid and intensive land use change has caused severe ecosystem degradation within only the last 50 years. The twentieth century intensification in food production through agriculture has led to a rapid deterioration of soil quality, evidenced in reduced crop production and rapid loss of soil. In many areas, a tipping point appears to have been passed as basement rock is exposed and 'rocky desertification' dominates. Through the establishment of the 'Soil processes and ecological services in the karst critical zone of SW China'(SPECTRA)Critical Zone Observatory(CZO) we will endevaour to understand the fundmental processes involved in soil production and erosion, and investigate the integrated geophysical-geochemical-ecological responses of the CZ to perturbations. The CZ spans a gradient from undisturbed natural vegetation through human perturbed landscapes.We seek to understand the importance of heterogeneity insurface and below-ground morphology and flow pathways in determining the spatial distribution of key stocks(soil,C, vegetation, etc.) and their control on ecosystem service delivery. We will assess the extent to which the highly heterogeneous critical zone resources can be restored to enable sustainable delivery of ecosystem services. This paper presents the CZO design and initial assessment of soil and soil organic carbon stocks and evidence for their stability based on caesium-137(^(137) Cs) data. 关键词：生态系统服务喀斯特景观人为扰动土壤有机碳储量土壤质量中国西南部传递土地利用变化

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Ecosystem service delivery in Karst landscapes: anthropogenic perturbation and recovery

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