嵩明县生态环境的初步评价及优化对策

Preliminary Estimate of Ecological Environment of Songming County and Measures to Optimize

嵩明县位于长江上游 ,并处于牛栏江、南盘江和盘龙江三江之源 ,境内有占全县土地总面积 38 5 %的 3个乡镇属昆明市“松华坝”水库水源保护区 ,其年产量占松华坝水库蓄水量的 90 % ,具有重要的生态战略地位 ,但水土流失面积仍占全县国土面积的 4 7 5 % ,生态环境仍没有从根本上得以改善。通过对其生态环境现状分析 ,作出生态环境的初步评价 。

Songming county is located at the common source of Niulanjiang river, Nanpanjiang river and Panlongjiang river. Three towns and townships, which was 38 5% of the total area of this county, belongs to the water source protection area of Songhuaba reservoir of Kunming city. The annual water from this area is 90% of the total capacity of Songhuaba reservoir. Ecological environment crisis is however a critical problem, land area suffering from water and soil loss is 47 5% of the total area. The present situation of ecological environment is analyzed and preliminarily evaluated, some strategies to optimize the ecological environment are proposed.