干旱区生态环境知识资源中心(Arid): 基于BSTEM模型的植被根系对塔里木河岸坡稳定性影响过程模拟

Arid

	基于BSTEM模型的植被根系对塔里木河岸坡稳定性影响过程模拟
其他题名	BSTEM model in the Tarim River
	王克响; 宗全利; 蔡杭兵; 陈志康
来源期刊	干旱区资源与环境
ISSN	1003-7578
出版年	2021
卷号	35 期号:3 页码:118-125
中文摘要	干旱地区的荒漠植被根系发达,其保持岸坡稳定和固土护堤的作用优为重要。在塔里木河流域选取红柳、芦苇和胡杨等典型荒漠植被根系,研究植被根系对塔里木河岸坡坡稳定性的影响,对于促进防治塔里木河水土流失和建设良好生态环境具有重要的现实和理论意义。文中以实测数据和水槽试验结果为基础,运用BSTEM模型,对植被根系对塔里木河岸坡坡稳定性的影响过程进行了模拟。结果表明:1)在竖直、倾斜、相交三种布置方式下,红柳根系体积密度RVD为8%时,安全系数Fs分别为1.29、1.27及大于1.3,当根系体积密度在8% ~ 28%时,岸坡安全系数全都大于1.3;芦苇和胡杨根系结果也类似,说明随着RVD增大,岸坡安全系数会增大,从而岸坡越稳定;2)不同根系放置方式对岸坡稳定性影响不同,如RVD为8%时,红柳根系竖直、倾斜和相交放置的安全系数分别提高了33%、30.9%和40.2%,所以提高岸坡稳定性大小次序为:相交﹥竖直﹥倾斜;3)从根系类型看,提高岸坡安全系数次序为:红柳﹥胡杨﹥芦苇;4)与无根系相比,有植被根系岸坡稳定性均比无植被根系有一定程度增加,相同植被根系下相交放置提高岸坡安全系数最显著,相同布置方式下红柳根系提升岸坡稳定性最明显。
英文摘要	Desert vegetations in the arid area has developed roots,and its role in maintaining riverbank stability and soil embankment is important.Several typical desert vegetation roots such as Tamarix ramosissima Lcdcb,Phragmites communis and Populus euphratica in the Tarim River basin were selected,the influence of vegetation roots on the slope stability of the Tarim River bank was researched,and it has important practical and theoretical significance for the prevention and control of the soil erosion of the Tarim River and the construction of a good ecological environment.In this study,based on the measured data and the results of the channel experiment,the BSTEM model was used to simulate the influence process of vegetation roots on slope stability of the Tarim River bank.The results as follows:(1)In the vertical,inclined and intersecting ways,when the volume density(RVD)of Tamarix ramosissima is 8%,the values of safety coefficients(Fs)are 1.29,1.27 and greater than 1.3,respectively.When RVD is from 8% to 28%,the values of safety coefficients are all greater than 1.3,and the results of Phragmites communis and Populus euphratica are similar.It indicates that the bank slope safety will increase with the increase of RVD,and the bank slope is more stable.(2)Different roots placement methods have different effects on bank slope stability.For example,when the RVD is 8%,the safety coefficients of the vertical,inclined and intersecting placement for Tamarix ramosissima roots are increased by 33%,30.9% and 40.2%,respectively.Thus,the order of stability increasing of the bank slope is:intersecting ﹥ vertical ﹥ inclined.(3)From the perspective of roots types,the order of increasing the bank slope safety is:Tamarix ramosissima ﹥ Populus euphratica ﹥ Phragmites communis.(4)Compared with no roots riverbank,the stability of the bank slope with vegetation roots is increased to a certain extent than that without roots.Intersecting placement can improve the bank slope safety most significantly under the same vegetation roots,and the roots of Tamarix ramosissima improve bank slope stability most obviously under the same placement.
中文关键词	BSTEM模型 ; 植被根系 ; 塔里木河 ; 岸坡稳定性
英文关键词	BSTEM vegetation roots Tarim River bank slope stability
类型	Article
语种	中文
国家	中国
收录类别	CSCD
WOS类目	Engineering
CSCD记录号	CSCD:6945127
来源机构	石河子大学
资源类型	期刊论文
条目标识符	http://119.78.100.177/qdio/handle/2XILL650/354306
作者单位	王克响, 中国海洋大学管理学院;;北方超级稻产业化中心有限公司, ;;, 青岛;;东营, ;; 266100;;257200.; 宗全利, 青岛农业大学资源与环境学院, 青岛, 山东 266109, 中国.; 蔡杭兵, 石河子大学水利建筑工程学院, 石河子, 新疆 832000, 中国.; 陈志康, 石河子大学水利建筑工程学院, 石河子, 新疆 832000, 中国.
推荐引用方式 GB/T 7714	王克响,宗全利,蔡杭兵,等. 基于BSTEM模型的植被根系对塔里木河岸坡稳定性影响过程模拟[J]. 石河子大学,2021,35(3):118-125.
APA	王克响,宗全利,蔡杭兵,&陈志康.(2021).基于BSTEM模型的植被根系对塔里木河岸坡稳定性影响过程模拟.干旱区资源与环境,35(3),118-125.
MLA	王克响,et al."基于BSTEM模型的植被根系对塔里木河岸坡稳定性影响过程模拟".干旱区资源与环境 35.3(2021):118-125.