The Causes and Progression of DesertificationRoutledge, 8. 9. 2017 - Počet stran: 272 This book provides an examination into the causes and prospects of desertification through a systematic review of 132 sub national case studies. It uses a meta-analytical model to determine whether proximate causes and underlying driving forces fall into any patterns, to identify mediating factors, feedbacks, cross-scalar dynamics and typical pathways. It shows a limited set of recurrent core variables in varying combinations to drive desertification. Most prominent root causes are climatic factors, institutions, national policies, population growth and remote economic influences that lead to local cropland expansion, overgrazing and infrastructure extension, associated with desertification as a potential but not necessary outcome. Some factors are geographically robust; most of them are region and time specific. |
Obsah
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Research Design | |
Initial Conditions | |
Causes and System Properties | |
Syndromes and Process Rates | |
Pathways | |
Indicators | |
Discussion | |
Conclusions | |
Bibliography | |
Index | |
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1/4 or less activities Africa agricultural and/or annual Aral Sea areas Asian associated with desertification Australia biophysical Chihuahuan Desert China combination crop cropland cultivated decline decrease desertification Dregne drought dryland change dryland degradation dryland ecosystems dryland regions dunes dynamics ecological economic ecosystems environment environmental example farming feedbacks Frequency Genxu and Guodong global grasslands Hei River Basin Hexi Corridor human impact increased aridity indicators infrastructure initial irrigation Lambin land change land cover land degradation land-use livestock mainly Mediterranean Basin Mexico Mortimore natural nomadic northern NW-China Ordos Plateau overgrazing pastoral Patagonia pathways period Plateau population production proximate causes rainfall rainfed rangelands rates reported reportedly Reynolds Sahel salinity sand semi-arid shrub shrubland socio-economic soil degradation soil erosion southern species Stafford Smith steppe studies syndromes Table Taklimakan Desert Tarim River Tarim River Basin Thizy Tibet transhumance triggering Turner underlying driving forces variables vegetation cover water degradation zone