摘要
主要概述防护绿地含义及主要类型和在环境保护方面的重要作用 。
In this paper, were generalized the meaning and main types of protective green block and its important role in environment protection, and was done discussion how to plan and establish proper protective block system.
出处
《防护林科技》
2002年第1期33-34,共2页
Protection Forest Science and Technology
