Effects of soil and water conservation of the conversion of farmland to forest in Zigui County of the Three Gorges Reservoir Region
WANG Zhu-Na-；Wang-Xiao-Guang-；Shi-Yu-Hu-；Bo-Lei-；Tu-Xue-Biao-；Tang-Zhang-Guo
1.South China University of Tropic Agriculture,571737,Danzhou,Hainan;2.Hubei Academy of forestry,430079,Wuhan;3.State Hujiaping Forest Farm of in Laifeng County,445701,Enshi,Hubei: China
Abstract：To show the effect to implementation to the environment improvement,and promote the sustainable development of the project of conversion of farmland,taking the project of Zigui as an example,the effects of soil and water conservation of the project was analysed,based on the investigation in the field and observation on located experimental plots.The result showed: 1) the effect is visible to control soil erosion,the surface runoff of the forest land was reduced from 75.25%-85.21%,and the soil erosion reduced 85.4%-95.6% comparing with the farmland every year;2) the project reduced soil erosion 54 900 t per year,and reduced the amount of sediment of river 12 700 t,and the loss amount of soil organic matter,N,P,K decreased 652 t,32 t,82 t and 871 t respectively.
王珠娜1,2；王晓光2；史玉虎2；潘磊2；余雪标1；唐章国3. 三峡库区秭归县退耕还林工程水土保持效益研究[J]. 中国水土保持科学, 2007, 5(1): 68-72.
WANG Zhu-Na-；Wang-Xiao-Guang-；Shi-Yu-Hu-；Bo-Lei-；Tu-Xue-Biao-；Tang-Zhang-Guo. Effects of soil and water conservation of the conversion of farmland to forest in Zigui County of the Three Gorges Reservoir Region. SSWCC, 2007, 5(1): 68-72.
2007, Vol. 5 
