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达州市地处四川省东北部大巴山南麓,属长江上游嘉陵江流域,土地总面积1.66万km2,总人口686万人,有水土流失面积1.06万km’,年均土壤侵蚀量6 209万t,严重的水土流失长期困扰着全市经济社会的发展。1989年以来,全市7个县(市、区)相继被国家列入长江上游水土保持重点防治区,开始实施大规模治理。20多年来,共投入工程建设资金8.01亿元,治理水土流失面积3 852 km2,植被覆盖率由治理前的36.76%提高到治理后的53.86%,年减少土壤侵蚀量1 832.6万t;农业人均产粮由治理前的469 kg增加到516 kg,贫困人口由治理前的2.94万
Dazhou is located in the south foot of Daba Mountain in the northeast of Sichuan Province and belongs to the Jialing River basin in the upper reaches of the Yangtze River. The total land area is 16,600 km2 with a total population of 6,860,000 with an area of 10,600 km of soil erosion and an average annual soil erosion of 62,900,000 t Serious soil erosion has plagued the city’s economic and social development for a long time. Since 1989, seven counties (cities and districts) in the city have been included in the priority areas for soil and water conservation in the upper reaches of the Yangtze River by the state, and large-scale governance has begun. Over the past 20 years, a total of 801 million yuan has been invested in construction projects, with an area of 3 852 km2 for water and soil erosion control. The vegetation coverage has been increased from 36.76% before treatment to 53.86% after treatment, and the annual soil erosion reduction has reached 18.326 million tons. The grain yield increased from 469 kg before treatment to 516 kg, while the poor population was 29,400 before the treatment