盈江县沙化土地的综合治理

Integrate Control of Desertification in Yingjiang County

山高坡陡 ,切割强烈 ;降水丰富 ,降水年内分配不均 ;土层深厚 ,土体疏松等是盈江县沙化土地形成的主要自然因素。森林植被遭到破坏 ,坡耕地面积逐年增加等是盈江县沙化土地形成的主要人为因素。盈江县现有沙化土地面积 2 5 2 0 5hm2 ,有流动沙地、半固定沙地、固定沙地、沙改田 4个沙化土地类型。通过长期的治理 ,沙化土地各类型面积及利用状况发生明显变化 ,总体发展趋势呈现逆转 ,沙化土地得到有效利用。今后需以治理水土流失为中心 ,采取生物措施、工程措施、农业措施相结合 ,开发利用并举的综合治理措施。

The main natural reasons caused desertzation are high mountains with steep slopes and deep gullies, uneven rainfall in the whole year, deep and loose soil. And the main human factors are deforestation and increasing agricultural land. There is 2,520.5hm 2 desertzation land in four types. moving desertzation land, semi_fixed desertzation land, fixed desertzation land and desertzation land to agricultural land. A clear change happened after long_time control. The land takes on inverse succession. People already make full use of the desertztion land. The future control should focus on soil erosion and water losses by integrate control measures, such as biology measures, engineer measures and combined with agriculture.