摘要
以富屯溪流域为研究对象,探讨以防止水土流失为目标的最佳森林覆盖率。从富屯溪流域土壤侵蚀现状图中分不同侵蚀强度依次提取侵蚀模数,并利用富屯溪流域森林资源分布图,提取出相应区域的有林地和灌木林地面积,计算各对应区域的森林覆盖率,建立富屯溪流域及所属7个县市的现有森林覆盖状况与水土侵蚀状况的关系,确定出基于防止土壤侵蚀为目标富屯溪流域的最佳森林覆盖率为65.5%。
The optimum forest coverrate of the Futunxi watershed was studied based on the object of preventing soil erosion. Each grade of soil erosive moduli was extracted from the map of soil erosion and each corresponding forest coverrate was work out based on the area of forest land and the area of shrub land which were extracted from the map of forest resource distribution. The relation between the forest resource and the soil erosion of Futunxi watershed and 7 cities which belong to it was established and the optimum forest coverrate of Futunxi watershed based on the object of preventing soil erosion was determined as 65.5%.
出处
《江西农业大学学报》
CAS
CSCD
北大核心
2007年第3期398-403,共6页
Acta Agriculturae Universitatis Jiangxiensis
基金
福建省科技攻关计划重点项目(2005N006)
福建省教育厅科学基金资助项目(JA04185)
关键词
3S技术
土壤侵蚀模数
最佳森林覆盖率
富屯溪流域
3S technique
soil erosive modulus
the optimum forest coverrate
Futunxi watershed
