【摘要】 基于重庆市合川区双凤坡面径流场坡度为10°、15°和20°的径流小区2021年度观测结果，探讨了坡度、植被覆盖、母质、降雨对坡面产流产沙的影响，结果表明：为了能够监测坡度对产流产沙的影响，径流小区的修建基础应完全一致，而通过填土方式修建的小区无法反映重庆地区真实的耕地坡面产流产沙情况；植被覆盖对坡耕地产流产沙的影响大于坡度的影响，在径流小区的作物生长初期最高产沙量高达454.90 kg,而后期植被覆盖较高时，产沙量最高仅为24.1 kg。研究结果可为坡面水土流失防治提供理论依据，为同类坡面径流小区建设提供借鉴参考。更多还原

【Abstract】 The paper discussed the influences of slope,vegetation coverage,parent material and rainfall to the runoff and sediment yields based on the observation results of 10°,15° and 20° runoff plots of slope runoff field in Shuangfeng Town,Hechuan District,Chongqing in 2021. The outcomes show that a) in order to be able to monitor the effect of slope on runoff and sediment yields,the construction basis of the plot should be completely consistent. However,the plot built by soil filling cannot reflect the condition of runoff and sediment yields on the real cultivated slope in Chongqing and; b) the effect of vegetation cover on runoff and sediment yields is greater than that of slope. The monitoring results show that the highest sediment yield is up to 454.90 kg at the early stage of crop growth in runoff plots,the highest sediment yield is only 24.1 kg in the later period when the vegetation cover is higher.The research results provide the theoretical bases for soil and water loss control and references for the construction of similar slope runoff plots.更多还原