摘要
This paper stresses the necessity of defining range of urban forest and provides the basis for reasonably determining rangeof urban forest and some basic principles to be followed.
This paper stresses the necessity of defining range of urban forest and provides the basis for reasonably determining rangeof urban forest and some basic principles to be followed.
基金
This article is part of "Research of Seedling Selection and Configuration for Construction of Water Resource Protection Woodlands ofBeijing" (under contract No: 1999002206) financed by the University Doctor Training Station Fund from the Ministry of Education ofP.R.China
