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水利化和水保措施对河流輸沙量的影响有兩个方面:一是治坡措施,如梯田、农業技术改良、种草、造林等,其作用在于防止土壤侵蝕使土不下坡;二是攔泥蓄水和治溝措施,如旱井、澇池、谷坊、淤地壩、塘堰、中小型水库等,共作用在于攔蓄已被冲刷的泥沙和制止溝壑侵蝕。水利化和水土保持措施对輸沙量影响的估算方法基本上有兩种:第一种方法对农林牧等治坡措施的影响采
Water conservancy and water conservation measures on the impact of river sediment has two aspects: First, slope control measures, such as terraced fields, agricultural technology improvement, planting grass, afforestation, etc. Its role is to prevent soil erosion so that the soil does not decline; Is to stop muddy water and trench management measures, such as arid wells, flood ponds, valley, silt dam, pond weir, small reservoirs, the common role is to intercept the erosion of sediment has been washed and stop ravines. There are basically two methods for estimating the effects of water conservancy and soil and water conservation measures on sediment load: The first method affects the slope control measures such as agriculture, forestry, animal husbandry and other measures