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宾县光恩乡总面积133.2km~2,其中水土流失面积62.7km~2,耕地3656hm~2,林地5993.1hm~2,“三荒”地2952.4hm~2。流域内多年平均降水量为550mm,其中70％以上集中在6～9月,冬季干燥寒冷,夏季温暖湿润。土质有暗棕壤、黑土、白浆土、草甸土、泥炭土等,有机质含量在2％～5％之间,适宜农作物和果林的生长。森林以杨、桦次生幼林为主,森林覆盖度为45％。 长期以来,由于人们对发展生产和保护资源的关系缺乏正确的认识,采育失调,伐多造少,陡坡开荒,加之乱砍滥伐掠夺式的经营,使山区失去了保持水土、涵养水源的能力,导致严重的水土流失,从而严重制约了
The total area of Guang’en Township in Bin County is 133.2km ~ 2, of which 62.7km ~ 2 for soil erosion, 3656hm ~ 2 for cultivated land, 5993.1hm ~ 2 for forest land and 2952.4hm ~ 2 for “three deserts”. The annual average precipitation in the basin is 550mm, of which more than 70% are concentrated in the period from June to September. The winter is dry and cold, and the summer is warm and humid. Soil with dark brown soil, black soil, white soil, meadow soil, peat soil, organic matter content of 2% to 5%, suitable for the growth of crops and fruit trees. The forest is dominated by young poplar and young birch, with a forest coverage of 45%. For a long time, due to the lack of a correct understanding of the relationship between the development of production and the protection of resources, the imbalance of agriculture and development, the scarcity of productive resources, the pioneering of steep slopes and the predatory management of deforestation and deforestation, the mountains have lost their ability to conserve soil and water and conserve water Capacity, leading to serious soil erosion, which severely restricted