摘要
Fourenvironmemtalservicefunctionsofwheat,barleyandrapeecosystemareevaluatedinmaterialproduction,airadjustment(includingcarbondioxidefixationandoxygenreleaseinTibetanAutonomousRegion),waterconservation,andnutrientrecycling.Basedonittheeconomiclossofenvironmentduetodesertificationisvalued.TheresultsshowthattheservicefunctionsoffarmlandecosysteminTibetaretotallyvaluedat4436.2×106yuan,thevalueofeachservicefunctionisorderedas:airadjust...
出版日期
2008年04月14日(中国期刊网平台首次上网日期,不代表论文的发表时间)