１９９９年是首都北京的林业生态年，为此编辑部汇编了部分林业生态知识，以读者。●我国８０年代初期启动的“绿色长城”工程指的是在东北、华北、西北地区植树造林，建设防护林工程。●“植树造林，绿化祖国”是国务院国家林业局的职能范围。●社会、经济、文化的发展，... 1999 is the capital of Beijing’s forestry eco-year, editorial department for this part of the compilation of forestry ecological knowledge to readers. ● The “Green Great Wall” project launched in early 1980s refers to reforestation and construction of shelterbelt projects in the northeast, north and northwest regions. ● “Reforestation, greening the motherland” is the scope of the SFA’s functions. ● social, economic and cultural development, ...