节点文献
曲江流域(玉溪段)生态环境现状及整治研究
Status Quo and Treatment Research of Biological Environment in Qujiang River Valley(Yuxi Section)
【摘要】 曲江流域由于人口增加 ,经济发展快及资源开发不合理 ,生态环境不断恶化。有林地覆盖虽高但林种结构不合理 ,低质林比重大 ,水土流失严重。应结合总体要求 ,分别对曲江上游生态农业区、中心生态农业区和河谷生态农业区制订保护目标和保护对策
【Abstract】 Due to the growth of population,rapid economic development and irrational tapping of resources in Qujiang Valley,the surrounding ecological environment is deteriorating.Although the area is high in coverage of forestland,the arrangement of tree species is far from reasonable,the low quality forest comprises of a large proportion and the water and soil erosion is serious.Protection objectives and countermeasures should be made for the ecological farming area at the upper reaches,in middle mountainous areas and in valleys.
- 【文献出处】 云南环境科学 ,Yunnan Environmental Science , 编辑部邮箱 ,2002年03期
- 【分类号】X171
- 【下载频次】40