ISWC OpenIR  > 水保所知识产出(1956---)
杨帆1; 张宽地1,2; 杨明义2; 杨婕1
Source Publication泥沙研究

为深入研究植被减流减沙特征及对流域水土保持效益的影响,本文通过5 个覆盖度,6
个坡度和7 个流
量的组合条件下的室内放水试验,系统研究了植被对坡面水流的缓流特征。结果表明: 随着植被覆盖度增加,
植被对坡面水流的阻滞作用逐渐凸显,即缓流系数减小,缓流效果增强,当植被覆盖度大于4. 650% 时,缓流
缓流系数随水深和雷诺数增加而减小,而与弗劳德数呈反C 型分布。最后,建立了基于试验控制变量( 植被
覆盖度,流量和坡度) 的缓流系数预测公式。

Other Abstract

Flow slowing characteristics of vegetation are studied under 6 slopes,7 flow discharges and 5 vegetation
coverages. Results show that influence of flow slowing coefficient decreases,and flow slowing effects are
enhanced,when vegetation coverage is more than 4. 650%,flow slowing effects tend to stable; it decreases
with the increases of the flow,but increases while slope increases. The flow slowing coefficient decreases with
the depth and the Reynolds number increasing,however,it negatively correlates with the Froude Number,
with positively correlation relationships. Based on control variables of the experiment ( vegetation coverage,
flow discharge and slope) ,the equation of current slowing coefficient is set up.

Keyword坡面流 模拟植被覆盖度 缓流系数
Indexed By中文核心期刊要目总览
Document Type期刊论文
Recommended Citation
GB/T 7714
杨帆,张宽地,杨明义,等. 植被缓流效果试验研究[J]. 泥沙研究,2017,42(2):54-60.
APA 杨帆,张宽地,杨明义,&杨婕.(2017).植被缓流效果试验研究.泥沙研究,42(2),54-60.
MLA 杨帆,et al."植被缓流效果试验研究".泥沙研究 42.2(2017):54-60.
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