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陕西省“丹治”一期工程累计治理小流域348条,治理水土流失面积7 681 km2,林草覆盖率由治理前的57.97%提高到79.05%,一期工程项目区年均保土能力达到4 879万t,开展治理的小流域减蚀率达到60%以上,蓄水能力达到43 361万m3,土壤侵蚀模数由治理前的2 846.3 t/(km2.a)降低到816.33 t/(km2.a),整个项目区由中度侵蚀下降为轻度侵蚀,区域生态环境有了明显改善,水源区水质相对稳定,农业生产条件得到改善,防灾减灾能力增强,促进了地方经济发展,为建设社会主义新农村奠定了基础。介绍了其主要做法与体会。
Shaanxi Province, “Dan governance” a total of 348 projects in the management of small watershed, soil erosion control area of 7 681 km2, forest coverage from the pre-treatment of 57.97% to 79.05%, the average annual soil conservation project capacity of the project area Reached 48.79 million tons. The erosion reduction rate of small watersheds under control reached over 60%, and the water storage capacity reached 43.361 million m3. The soil erosion modulus decreased from 2 846.3 t / (km2.a) before treatment to 816.33 t / (km2.a). The entire project area has been reduced from moderate erosion to mild erosion, and the regional ecological environment has been significantly improved. Water quality in the water source area has been relatively stable, agricultural production conditions have been improved, and capacity for disaster prevention and mitigation has been enhanced, thus promoting local economic development , Laid the foundation for building a new socialist countryside. Introduced its main practices and experiences.