安徽农业科学2013，Vol.41Issue(5)：2054-2057,4.
广西凤山县退耕还林土壤效应及生态效益评价研究
Evaluation of Soil Effects and Ecological Benefits of Returning Farmland to Forest in Fengshan County, Guangxi Zhuang Autonomous Region
摘要
Abstract
[ Objective ] The research aimed to provide the basis for the recovery and the reconstruction of degraded soil ecosystem. [ Method ] The effects of two kinds of returning farmland to forest (walnut and star anise)on soil characteristics were investigated in mountain of rocky and hilly, Fengshan County,Guangxi Zhuang Autonomous Region. The physicochemical properties of the soils (0-40 cm) were studied, and the farmland was taken as contrast. [Result]The soil profile structure was gradually improved,the soil bulk density reduced,and the total porosity,saturated water content increased after returning farmland to forest. Meanwhile, the soil organic content increased by 16.6%. The average content of the soil organic showed star anise > walnut > farmland, and the average available nitrogen content showed star anise > walnut, and the total nitrogen content showed walnut > star Anise. The ecological benefit value was more than 0.28 billion yuan in protection of water resource and the value of soil and water conservation. [Conclusion] The potential value of returning farmland to forest was huge, so it was necessary to strengthen the construction force of the engineer of returning farmland to forest.关键词
退耕还林/凤山县/土壤理化性质/生态效益Key words
Returning farmland to forest/Fengshan Country/ Physicochemical property of soil/ Ecological value分类
农业科技引用本文复制引用
牛辉,庄嘉,胡冬冬,王倩,招礼军..广西凤山县退耕还林土壤效应及生态效益评价研究[J].安徽农业科学,2013,41(5):2054-2057,4.基金项目
广西退耕还林工程建设效益监测(AE180056). （AE180056）
