森林具有气候调节、水源涵养、生物多样性保护等诸多生态服务功能(Millennium Ecosystem Assessment,2005;van der Werf et al.,2009),同时减少毁林和森林退化也是减缓温室气体排放协议REDD+的重要内容(DeF ries et al.,2007;Grassi...
National Basic Research Program of China(2010CB950900);National Key Technology R&D Program(2013BAC0304)
In this paper,we mainly focused our research on northern Shaanxi district,which is a pilot area of the Grain for Green Project.We compared the spatial distribution patterns of croplands and their productivity for the ...