Knowledge Resource Center for Ecological Environment in Arid Area
DOI | 10.1002/eco.4 |
A conceptual framework for understanding semi-arid land degradation: ecohydrological interactions across multiple-space and time scales | |
Turnbull, L.1; Wainwright, J.1; Brazier, R. E.2 | |
通讯作者 | Turnbull, L. |
来源期刊 | ECOHYDROLOGY
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ISSN | 1936-0584 |
出版年 | 2008 |
卷号 | 1期号:1页码:23-34 |
英文摘要 | Land degradation is a problem prolific across semi-arid areas worldwide. Despite being a complex process including both biotic and abiotic elements, previous attempts to understand ecosystem dynamics have largely been carried out within disparate disciplines of ecology and hydrology, which has led to significant limitations. Here, an ecohydrological framework is outlined. to provide a new direction for the study of land degradation in semi-arid ecosystem. Unlike other frameworks that draw upon hierarchy theory to provide a board, non-explicit conceptual framework is based upon the explicit linkage of process operating over the continuum of temporal and spatial scales by perceiving the ecosystem as a series of structural and functional connections, within which interactions between biotic and abiotic components of the landscape occur. It is hypothesized that semi-arid land degradation conforms to a cusp-catastrophe model in which the two controlling variables are abiotic structural connectivity and abiotic functional connectivity, which implicitly account for ecosystem resilience, and biotic structural and function connectivity. It is suggest therefore that future research must (1) evaluate how abiotic and biotic function (i.e. water, sediment and nutrient loss/redistribution) vary over grass-shrub transitions and (2) quantify the biotic/abiotic structure over grass-shrub transitions, to (3) determine the interactions between ecosystem structure and function. and interaction/feedbacks between biotic and abiotic components of the ecosystem. Copyright (C) 2008 John Wiley & Sons, Ltd. |
英文关键词 | ecohydrology vegetation transition structure function biotic connectivity cusp catastrophe |
类型 | Review |
语种 | 英语 |
国家 | England |
收录类别 | SCI-E |
WOS记录号 | WOS:000259925100004 |
WOS关键词 | SOUTHERN NEW-MEXICO ; NORTHERN CHIHUAHUAN DESERT ; OVERLAND-FLOW ; LANDSCAPE CONNECTIVITY ; VEGETATION PATTERNS ; ECOLOGICAL-SYSTEMS ; CATASTROPHE-THEORY ; SHRUBLAND HABITATS ; INTERRILL RUNOFF ; SPATIAL PATTERNS |
WOS类目 | Ecology ; Environmental Sciences ; Water Resources |
WOS研究方向 | Environmental Sciences & Ecology ; Water Resources |
资源类型 | 期刊论文 |
条目标识符 | http://119.78.100.177/qdio/handle/2XILL650/157025 |
作者单位 | 1.Univ Sheffield, Dept Geog, Sheffield Ctr Int Drylands Res, Sheffield S10 2TN, S Yorkshire, England; 2.Univ Exeter, Dept Geog, Exeter EX4 4RJ, Devon, England |
推荐引用方式 GB/T 7714 | Turnbull, L.,Wainwright, J.,Brazier, R. E.. A conceptual framework for understanding semi-arid land degradation: ecohydrological interactions across multiple-space and time scales[J],2008,1(1):23-34. |
APA | Turnbull, L.,Wainwright, J.,&Brazier, R. E..(2008).A conceptual framework for understanding semi-arid land degradation: ecohydrological interactions across multiple-space and time scales.ECOHYDROLOGY,1(1),23-34. |
MLA | Turnbull, L.,et al."A conceptual framework for understanding semi-arid land degradation: ecohydrological interactions across multiple-space and time scales".ECOHYDROLOGY 1.1(2008):23-34. |
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