[1]张翔,高照良,卢茜.(土娄)土堆积体坡面细沟形态及其沿程分布特征[J].水土保持研究,2019,26(05):53-59.
 ZHANG Xiang,GAO Zhaoliang,LU Xi.Rill Morphological Characteristics and Distribution Characteristics on Lou Soil Mound[J].,2019,26(05):53-59.
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(土娄)土堆积体坡面细沟形态及其沿程分布特征()
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《水土保持研究》[ISSN:1005-3409/CN:61-1272/P]

卷:
26卷
期数:
2019年05期
页码:
53-59
栏目:
出版日期:
2019-09-06

文章信息/Info

Title:
Rill Morphological Characteristics and Distribution Characteristics on Lou Soil Mound
作者:
张翔1 高照良2 卢茜1
1. 萍乡学院 海绵城市研究院, 江西 萍乡 337000;
2. 中国科学院 水利部 水土保持研究所, 陕西 杨凌 712100
Author(s):
ZHANG Xiang1 GAO Zhaoliang2 LU Xi1
1. Research Institute of Sponge City, Pingxiang University, Pingxiang, Jiangxi 337000, China;
2. Institute of Soil and Water Conservation, Yangling, Shaanxi 712100, China
关键词:
工程堆积体放水冲刷细沟形态
Keywords:
lou soilengineering moundrunoff scouringrill morphology
分类号:
S157.1
摘要:
采用人工野外放水冲刷试验,以(土娄)土地质为下垫面的工程堆积体坡面为研究对象,研究了不同坡长、坡度的(土娄)土堆积体坡面细沟形态特征及其沿程分布。结果表明:沟宽随时间延续呈现先递增后倾于稳定的趋势,沟宽与坡长存在二次函数关系,沟深随时间延续不断递增,表现为线性函数关系,沟深与细沟断面面积均对坡长变化存在响应,但并不存在显著函数关系,细沟宽深比随径流的持续呈现先骤减后倾于稳定的趋势,细沟断面面积随时间延续呈现逐渐递增的走势,可以用线性函数来描述断面面积与时间二者的关系,沟宽的沿程分布规律不一,呈现迥异,整体上来看,沟深的分布特性表现为先骤减后保持稳定的规律,就堆积体渣面汇集径流冲刷坡面的情况而言,对堆积体上半坡面布设合理的防治措施是重中之重。
Abstract:
A field water-scouring experiment was conducted with different slope lengths and slope gradients in order to explore rill morphological characteristics and distribution characteristics on lou soil mound. The results show that the width of rill increases first and then tends to be stable with time. There is a quadratic function relationship between rill width and slope length. The depth of the rill continues to increase with time, and the relationship between the rill depth and time can be well described by a linear function. Both the rill depth and sectional area of the rill response to the change of slope length, no significant functional relationship between them is found. The rill width-depth ratio decreases rapidly first and then tends to be stable with time. The sectional area of the rill increases with time. The relationship between the sectional area of the rill and the time can be described by a linear function. The distribution of the rill width on the slope is not uniform, showing diversity. On the whole, the distribution characteristics of rill depth follow a rule of decreasing rapidly first and then maintaining stability. In view of the fact that the accumulation platform surface collects the runoff and flushes the slope surface, reasonable control measures should be laid on the top half slope of the mound.

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备注/Memo

备注/Memo:
收稿日期:2018-10-27;改回日期:2018-11-30。
基金项目:江西省教育厅科研技术研究项目资助(GJJ181111,GJJ171144);“十二五”国家科技支撑计划“农田水土保持关键技术研究与示范”(2011BAD31B01)
作者简介:张翔(1991-),男,江西吉安人,硕士研究生,主要研究方向为土壤侵蚀研究。E-mail:812936025@qq.com
通讯作者:高照良(1969-),男,河南灵宝人,博士,研究员,博士生导师,主要研究方向为农业水土工程和荒漠化防治。E-mail:gzl@ms.iswc.ac.cn
更新日期/Last Update: 1900-01-01