5Halvorson A D,Reule C A,Anderson R L.Evaluation of management practices for converting grassland back to cropland[J].Soil Water Conserv,2000,55:57-62.
6Wilson E O(ed.).Biodiversity[M].Washington,D.C.:National Academy Press,1988.
7Fu B J,Gulinck H,Masum M Z.Loess erosion in relation to land-use changes in Ganspoel catchment,central Belgium[J].Land Degradation & Rehabilitation,1994,5(4):261-270.
8Lal R,Mokma D,Lowery B.Relation between soil quality and erosion.In:Rattan Lal(ed.),Soil Quality and Soil Erosion[J].Washington D.C.:CRC Press,1999.237-258.
9Warkentin B P.The changing concept of soil quality[J].Soil Water Cons,1995,50:226-228.
10Crist P J,Thomas W Kohley,John Oakleaf.Assessing landuse impacts on biodiversity using an expert system tool[J].Landscape Ecology,2000,15:47-62.
