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在秦岭、巴山腹地,我省嘉陵江流域重点防治区的略阳、宁强、镇巴、凤县四县从1989年起先后被国家列为长江上游水土保持重点防治区,安排治理小流域46条,涉及47个乡、305个村、4.43万户、20多万人口,总面积3143平方公里,占我省嘉陵江流域总面积的30.4％。其中水土流失面积1742.8平方公里,占防治总面积的5.4％。
In Qinling Mountains and Bashan hinterland, the four counties of Lueyang, Ningqiang, Zhenba and Fengxian, the key prevention and control areas in the Jialing River drainage area in our province, have been listed by the state as key areas for soil and water conservation in the upper reaches of the Yangtze River since 1989, and 46 small watersheds , Involving 47 townships and 305 villages, 44300, 200000 population, a total area of 3143 square kilometers, accounting for 30.4% of the total area of Jialing River basin in our province. Among them, the area of soil erosion is 1742.8 square kilometers, accounting for 5.4% of the total area of prevention and control.