Ecological restoration and recovery in the wind-blown sand hazard areas of northern China: relationship between soil water and carrying capacity for vegetation in the Tengger Desert

查看全文 作　　者：LI [1,2]XinRong;ZHANG [1,2]ZhiShan;TAN [1,2]HuiJuan;GAO [1,2]YanHong;LIU [1,2]LiChao;WANG [1,2]XinPing

机构地区：[1]Shapotou Desert Research and Experiment Station,Cold and Arid Regions Environmental and Engineering Research Institute,Chinese Academy of Sciences;[2]Key Laboratory of Stress Physiology and Ecology in Cold and Arid Regions of Gansu Province

出　　处：《Science China(Life Sciences)》索引2014年第57卷第5期,共10页

基　　金：supported by the National Basic Research Program of China(2013CB429906) 摘　　要：The main prevention and control area for wind-blown sand hazards in northern China is about 320000 km2 in size and includes sandlands to the east of the Helan Mountain and sandy deserts and desert-steppe transitional regions to the west of the Helan Mountain.Vegetation recovery and restoration is an important and effective approach for constraining wind-blown sand hazards in these areas.After more than 50 years of long-term ecological studies in the Shapotou region of the Tengger Desert,we found that revegetation changed the hydrological processes of the original sand dune system through the utilization and space-time redistribution of soil water.The spatiotemporal dynamics of soil water was significantly related to the dynamics of the replanted vegetation for a given regional precipitation condition.The long-term changes in hydrological processes in desert areas also drive replanted vegetation succession.The soil water carrying capacity of vegetation and the model for sand fixation by revegetation in aeolian desert areas where precipitation levels are less than 200 mm are also discussed. 关键词：腾格里沙漠土壤水分植被恢复风沙危害中国北方生态修复时空动力学能力

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Ecological restoration and recovery in the wind-blown sand hazard areas of northern China: relationship between soil water and carrying capacity for vegetation in the Tengger Desert

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