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淅川县作为南水北调中线工程主要水源地,担负着保护生态及向首都、华北地区输送优质丹江水的历史重任。“十五”以来,在各级政府和长江水利委员会的关怀支持下,淅川县委、县政府把水土保持作为保护水源水质的一项主要举措,不断加大工作力度,取得了明显成效。累计投资1100余万元,对“长治”11条小流域进行了综合治理,治理水土流失面积143km~2,坡改梯0．11万hm~2,栽植林木0．49万hm~2,实施封禁治理0．59万hm~2,修建小型水利水保工程1500多处,使治理区初步形成了水土保持综合防护体系,林草覆盖率由治理前的11%提高到32%,土壤侵蚀模数由治理前的4400t/km~2减少到1100t/km~2以下,每年减排泥沙近50万t。目前,治理区
Xichuan County, as the main source of water for the mid-route of the South-to-North Water Diversion Project, shoulders the historic task of protecting the ecology and delivering high-quality Danjiang water to the capital and North China. Since the “Tenth Five-year Plan”, with the care and support of governments at all levels and the Yangtze River Water Conservancy Commission, Xichuan County committee and government have made great efforts in water and soil conservation as a major measure to protect the water quality of water sources and have made great efforts. A total investment of more than 11 million yuan, the “Changzhi” 11 small watershed comprehensive management, control of soil erosion area of 143km ~ 2, sloping slope of 11,100 hm ~ 2, planting 49,900 hm ~ 2 trees, the implementation of the ban management 5,900 hm ~ 2, more than 1,500 small water conservancy and water conservancy projects were constructed, so that a comprehensive protection system for soil and water conservation was initially formed in the management area. The coverage rate of forest and grass increased from 11% before treatment to 32%, and the soil erosion modulus was The pre-treatment 4400t / km ~ 2 is reduced to less than 1100t / km ~ 2, and annual sediment discharge is reduced by 500,000 t. At present, the governance area