【摘要】 试验研究了河北省太行山片麻岩丘陵区、低山区、中山和亚高山区的防洪减灾工程技术,实施生物措施和工程措施相结合,层层拦蓄与蓄排结合,坡面与沟道排水体系结合,使3个类型区在普降暴雨下土壤蓄水量分别达到320mm、276.4mm和309.1mm,年土壤侵蚀量分别为38.2t/km~2、148.6t/km~2和44.9t/km.2,分别比对照减少89.3％、91.7％和77.8％,防洪减灾效果显著。更多还原

【Abstract】 The engineering and techniques to prevent floods and deduce disasters in gneiss region of hills,low mountain and subalpine were studied.The measures include the combinations of sluice and drainage,biological measure and engineering measure,and draining systems of slope and gully.These measures conduce to the amounts of water holding in the soil of 3 typical regions that are 320mm,276.4mm and 309.1mm and the amounts of soil erosion that are 38.2t/km2 a,148.6t/km2 a and 44.91/km2 a,thus decreasing by 89.3%,91.7% and 77.8% than the control.The effect of preventing floods is very well.更多还原