5R. Flint Hughes,J. Boone Kauffman,Dian L. Cummings. Dynamics of Aboveground and Soil Carbon and Nitrogen Stocks and Cycling of Available Nitrogen along a Land-use Gradient in Rond?nia, Brazil[J] 2002,Ecosystems(3):244～259
6R. A. Houghton. Counting Terrestrial Sources and Sinks of Carbon[J] 2001,Climatic Change(4):525～534
7Mohammad A. Hajabbasi,Ahmad Jalalian,Hamid R. Karimzadeh. Deforestation effects on soil physical and chemical properties, Lordegan, Iran[J] 1997,Plant and Soil(2):301～308
8John M. Duxbury. The significance of agricultural sources of greenhouse gases[J] 1994,Fertilizer Research(2):151～163
9Eric A. Davidson,Ilse L. Ackerman. Changes in soil carbon inventories following cultivation of previously untilled soils[J] 1993,Biogeochemistry(3):161～193
10Dale W. Johnson. Effects of forest management on soil carbon storage[J] 1992,Water, Air, & Soil Pollution(1-2):83～120
