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梨园小流域总面积20km~2,属黄河流域大汶河水系,1989年被列为山东省治理试点小流域。开展综合治理四年来,在控制水土流失、改善生态环境、促进生态平衡方面取得显著效益(蓄水效率达63.6％、保土效率达77.4％、林草覆盖率62.3％、治理程度91.7％)的同时,也取得了可观的经济效益(农民人均纯收入1003元,是治理前的2.4倍),为我国北方石质低山丘陵水土流失严重地区实现脱贫致富奔小康探索了路子。按照水利部《水利经济计算规范》、《水土保持技术规范》要求,根据梨园流域治理规划、实施资料,进行经济效益分析如下。
The total area of Liyuan small watershed is 20km ~ 2, belonging to the Dawenhe River system of the Yellow River Basin. In 1989, it was listed as a pilot watershed in Shandong Province. In the past four years since the implementation of the comprehensive management, remarkable achievements have been made in controlling soil and water loss, improving the ecological environment and promoting ecological balance (water storage efficiency of 63.6%, soil conservation efficiency of 77.4%, grass coverage of 62.3% and treatment level of 91.7%) At the same time, considerable economic benefits have also been achieved (the per capita net income of farmers is 1003 yuan, 2.4 times of that before the management), which has helped to find a way to get rid of poverty and get well for the well-to-do society in areas where soil erosion in stony hilly areas in the northern part of our country is serious. In accordance with the Ministry of Water Resources “Water Economy Computation Code”, “Soil and Water Conservation Specifications” requirements, according to Liyuan catchment management plan, the implementation of information, the economic benefits are as follows.