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一小南川是湟水在湟中县境內的一条支流,流域內包括什張家、田家寨、永丰、土門关及附近的升平、群加六个乡,共7,204戶,43,774人,劳力19,622人,土地总面积68万余亩,全为丘陵溝壑区,山高坡陡,千溝万壑,水土流失严重。据調查,水土流失面积約497,700亩,占总面积的72.2％,每年流失水6,000万公方,冲走表层肥土65万方,損失肥料2亿8千万斤,致使山区日益惡化,土地瘠薄,形成童山秃嶺,群众說:“山上沒有草,溝底树木少,下雨紅泥(?),天旱似火燒”。这都真实地說明了这个地区的荒涼面貌,和水土流失的严重程度。所以水旱災害年年發生,人
Xiaonanchuan is a tributary of Huangshui in Langzhong County. The basin includes Shijiazhuang, Tianjiazhai, Yongfeng, Tumenguan and nearby Shengping, with a total of 7,204 households and 43,474 people, with a labor force of 19,622 People, the total land area of more than 680,000 acres, all for the hilly and gully areas, steep mountain slopes, valleys and valleys, soil erosion is serious. According to the survey, the area of soil and water loss is about 497,700 mu, accounting for 72.2% of the total area. Water is lost 60 million square kilometers per year. 650,000 kilograms of surface soil is washed away and 280 million kilograms of fertilizer is lost. As a result, the mountains are deteriorating and the land is barren , Forming Tongling Bald Ridge, the masses said: “There is no grass in the ditch, ditch less trees, rain red mud (?), Drought like fire.” All this truly shows the desolate landscape of this area and the severity of soil erosion. So floods and droughts happen every year, people