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本文调查分析了塘背河小流域综合治理6年来的效益。植被覆盖度由10％上升为25％;输沙量减少78.6％;河水平均含沙量减少45.4％;输沙摸数减少78.6％;河床平均刷深0.26米;水库淤积量减少23.9％。土壤有机质,水解氮、全磷。速效磷等大幅度增加;局部地面已积累2厘米厚的枯枝落叶层。各业产值结构也有明显的改善,粮食总产增长40.9％:粮食亩产增长52.4％:人均占有粮食增加32％;人均纯收入增加214％。
This paper investigates and analyzes the benefit of comprehensive management of Tangdouhe watershed in the past six years. Vegetation coverage increased from 10% to 25%, sediment discharge decreased by 78.6%, average sediment concentration decreased by 45.4%, sediment transport decreased by 78.6%, average depth of the river bed was 0.26 meters, and reservoir sedimentation decreased by 23.9%. Soil organic matter, hydrolyzed nitrogen, total phosphorus Available phosphorus and other substantial increase; local ground has accumulated 2 cm thick litter layer. The output value structure of all industries also improved significantly. The total grain output increased by 40.9%: the grain yield per mu increased by 52.4%: the per capita food consumption increased by 32%; and the per capita net income increased by 214%.