摘要
滇池目前森林覆盖率仅229%,水土流失面积却达96496km2。对现有369797ha宜林地实施工程造林后,预计2010年森林覆盖率可提高到47%,土壤侵蚀模数减少64829t/km2·a、森林固土能力增加22397万m3,每年分别减少入湖氮、磷474t和381t,还可促进森林生态系统的良性循环,促进农村经济和当地旅游业的发展。
At Present,the forest coverage in Dian Chi is only 22.9%,while the soil erosion reaches 964.96 After foresting on the present suitable land of 3697.9 hectares,it is expected that by 2010 the forest coverage caraised to 47%,and soil erosion deduced 648.29t/km 2a, the fixing -soil capacity of forest added 2.2397 million 47.4t chlorine and 38.1t phosphorus reduced to emit into the Lake.As well,the benign cycle of forest ecological sy the agricultural economy and the development of local tourism will be promoted.
出处
《云南环境科学》
1997年第3期56-58,共3页
Yunnan Environmental Science
关键词
生态环境
防护林
滇池
eco-environment shelter-forest Dian Chi Lake