黄河流域水土保持综合效益分析

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新中国成立以来,黄河流域开展了大规模的水土保持工作,全流域有1/3的水土流失面积得到治理,治理保存面积达15.38万km2,其中扩建设基本农田516.97万hm2,造林种草1021.3万hm2,还修建了大量治沟骨干工程、人畜饮水工程和小型水保工程。水土保持工作的开展,有效地减少了入黄泥沙,促进了流域经济发展。截至1995年底止,黄河流域水保措施共增产粮食621.49亿kg,果品250.73亿kg,薪材580.41亿kg,饲草451.96亿kg,桔杆745.79亿kg,蓄水812.74亿m3,拦泥106.55亿t,显示出极大的经济、社会和生态效益。 Since the founding of New China, the Yellow River Basin has carried out large-scale soil and water conservation work. One-third of the total area has been treated with water and soil loss, with a total area of ​​153,800 km2, of which 5.1697 million hm2 has been expanded and built. 10,133,000 hm2 of afforestation and grass planting, and also built a large number of trunk irrigation projects, drinking water project and small-scale water conservation project. Soil and water conservation work carried out, effectively reducing the Yellow River sediment, and promote the economic development of the basin. As of the end of 1995, a total of 62.149 billion kg of grain, 25.0773 billion kg of fruit, 58.041 billion kg of fuelwood, 45.196 billion kg of fodder grass, 74.579 billion kg of straw, With 81.274 billion m3 of water and 106.55 billion tons of mud, it shows great economic, social and ecological benefits.
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