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长江上游水土流失重点防治工程于1989年经国务院批准实施,经过6年的连续性综合防治,完成治理水土流失面积3.3万km ̄2,项目区发生了巨大变化,人均基本农田和经济果木达到620m ̄2和210m ̄2,粮食总产和经济收入比治理前增长21.29%和102.38%,农业人均产粮和农村人均纯收入比治理前增长18%和72%。项目区林草覆盖率提高18.3个百分点,各项工程年拦蓄地表径流量77.85亿m ̄3,年土壤侵蚀量减少65.80%。“长治”工程建设取得了显著的经济、生态和社会效益,并形成了一套行之有效的做法和经验。
The key water and soil loss prevention and control project in the upper reaches of the Yangtze River was approved by the State Council in 1989. After 6 years of comprehensive prevention and control, the area of water and soil erosion was completed to 33,000 km ~ 2. The project area has undergone tremendous changes. Basic farmland per capita and economic fruit trees Reaching 620m2 and 210m2. The total grain output and economic income increased by 21.29% and 102.38% respectively over the pre-treatment level. The per-capita output of grain and the per capita net income of rural residents increased by 18% and 72% respectively. In the project area, the coverage of forest and grass increased by 18.3%. The surface runoff of each project year was 7.785 billion m3 and the annual soil erosion decreased by 65.80%. “Changzhi” project has made significant economic, ecological and social benefits, and formed a set of effective practices and experiences.