黄土区土质道路径流水动力学参数的灰色关联度分析
张强 ; 郑世清
刊名干旱区资源与环境
2012
卷号26期号:11页码:127-131
关键词人工降雨 放水冲刷实验 土壤剥蚀率 水动力学参数 灰色关联度
中文摘要 黄土区土质道路路面侵蚀是该地区土壤侵蚀中的重要形式之一,为了探讨其土壤剥蚀率与径流水动力学参数的相关关系,以便为该地区道路土壤侵蚀预报模型的建立提供帮助,采用室内人工降雨及放水冲刷实验、灰色关联度分析方法研究了裸露土质路和植草土质路的径流水动力学参数与土壤剥蚀率间的关系,结果表明:1)在15°坡度、不同雨强条件下,可根据径流量或水流功率计算土壤剥蚀率;2)在2mm.min-1雨强、不同坡度条件下,可根据水流功率或坡度计算土壤剥蚀率;3)在降雨加放水冲刷试验条件下,裸露土质路的土壤剥蚀率可通过径流水深或径流流速计算得出,而植草土质路的土壤剥蚀率可通过过水断面单位能量或径流量计算得出。因此,在无汇水条件时,根据径流水流功率计算土壤剥蚀率较为合理;在有汇水条件时,采用径流量计算土壤剥蚀率较为合理。
英文摘要Earth road erosion is one of the most important soil erosions on Loess area. Gray correlation analysis
was performed to study the relationship between runoff hydraulic parameters and soil detachment rate on uncovered
earth road and grass - covered earth road. The relationship would be helpful to the soil erosion prediction
model. The results were as follows: 1) Soil detachment rate can be computed by runoff or stream power under
different rain intensities at 15° slope; 2) Soil detachment rate can be computed by stream power or slope under
different slope at rain intensity of 2mm·min - 1 ; 3) Soil detachment rate of uncovered earth road and grass -
covered earth road can be computed by runoff depth or runoff velocity,unit energy of water - carry section or
runoff,respectively,under artificial rainfall and simulated overland flow test. Therefore,it is reasonable to compute
soil detachment rate by stream power without runoff from upslope,and be computed by runoff with runoff
from upslope.
语种中文
公开日期2014-10-13
内容类型期刊论文
源URL[http://ir.iswc.ac.cn/handle/361005/5457]  
专题水土保持研究所_水保所知识产出(1956-2013)
推荐引用方式
GB/T 7714
张强,郑世清. 黄土区土质道路径流水动力学参数的灰色关联度分析[J]. 干旱区资源与环境,2012,26(11):127-131.
APA 张强,&郑世清.(2012).黄土区土质道路径流水动力学参数的灰色关联度分析.干旱区资源与环境,26(11),127-131.
MLA 张强,et al."黄土区土质道路径流水动力学参数的灰色关联度分析".干旱区资源与环境 26.11(2012):127-131.
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