[1]王帮团,徐则民,王帮圆,等.根-土间隙对斜坡降雨入渗的贡献——以头寨和段家营地区为例[J].山地学报,2016,(04):393-400.[doi:10.16089/j.cnki.1008-2786.000143]
　WANG Bangtuan,XU Zemin,WANG Bangyuan,et al.The Contribution of Soil-root Interstice to Rainfall Infiltration on a Vegetated Slope:A Case Study at the Duanjiaying and Touzhai Area,Yunnan Province,China[J].Mountain Research,2016,(04):393-400.[doi:10.16089/j.cnki.1008-2786.000143]
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根-土间隙对斜坡降雨入渗的贡献——以头寨和段家营地区为例()
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《山地学报》[ISSN:1008-2186/CN:51-1516]

卷:
期数:
2016年04期
页码:
393-400
栏目:
山地生态与环境
出版日期:
2016-08-01

文章信息/Info

Title:
The Contribution of Soil-root Interstice to Rainfall Infiltration on a Vegetated Slope:A Case Study at the Duanjiaying and Touzhai Area,Yunnan Province,China
文章编号:
1008-2786-(2016)4-393-08
作者:
王帮团1; 4; 徐则民2; 王帮圆3; 赵付万1
1.昆明理工大学地球科学系,云南 昆明 650093;
2.昆明理工大学土木系,云南 昆明 650500;
3.云南地质工程勘察设计研究院,云南 昆明 650041;
4.中国有色金属工业昆明勘察设计研究院,云南 昆明 650051
Author(s):
WANG Bangtuan1; 4; XU Zemin2; WANG Bangyuan3; ZHAO Fuwan1
1.Department of Earth Science,Kunming University of Science and Technology,Kunming 650093,China;
2.Department of Civil Engineering,Kunming University of Science and Technology,Kunming 650500,China;
3.Department of Yunnan Geological Engineering Survey and Design Institute,Kunming 650041,China;
4.Kunming Prospecting Design Institute of China Nonferrous Metals Industry,Kunming 650051,China
关键词:
植被发育斜坡;  滑坡;  降雨入渗;  根-土间隙
Keywords:
a vegetated slope;  landslide;  rainfall infiltration;  soil-root interstice
分类号:
P642.1,S157.1
DOI:
10.16089/j.cnki.1008-2786.000143
文献标志码:
A
摘要:
在植被发育程度较高的云南昭通头寨试验区和呈贡段家营试验区,使用亚甲基蓝和罗丹明B溶液多次进行染色示踪渗透试验,发现根-土间隙的导流现象十分明显,其导流作用很可能已经超过了传统的三类土体大孔隙。对不同尺寸根-土间隙流道内水分入渗速度模型进行推导与理论计算,并将其与实测实值进行比较分析,最后讨论了头寨试验区和呈贡段家营试验区斜坡土体中根-土间隙在降雨入渗过程中导流量所占比例。结果表明:昭通头寨和呈贡段家营试验区斜坡土体中根-土间隙的尺寸主要集中在0.5～1.0 mm,多数间隙尺寸为0.5 mm左右,根-土间隙流道内水分下渗速度主要分布在区间0.027～0.203 mm/s和0.014～0.102 mm/s,两试验区土体中根-土间隙的导流量分别占总入渗量的72%～82%和54%～70%,相同面积上,头寨试验区土体中根-土间隙的导流量是呈贡段家营试验1.67倍,根-土间隙对降雨入渗的贡献是显著的。
Abstract:
The experimental area with high vegetation at the Touzhai,Zhaotong and Duanjiaying,Chenggong,Yunnan Province,respectively using methylene blue and rhodamine B solution dyed tracer penetrant test hadbeen usecl many times and It found that the guiding flow phenomenon was very obvious. The diversion function is likely more important than the traditional three kinds of soil macropore. A water infiltration velocity model was derived and the theoretical calculation was performed at different sizes of the soil-root interstices,and compared with the measured values,finally,the guide flow proportion of soil-root interstice is discussed of the rainfall process in the Touzhai and Duanjiaying test area. Results show that the size of soil-root interstice are mainly concentrated in the size 0.5～1.0 mm,most of the size is about 0.5 mm,the water infiltration speed in soil-root interstice are in the range of 0.027～0.203 mm/s and 0.014～0.102 mm/s in the Touzhai and Duanjiaying test area. The infiltration volume accounted for 72%～82% and 54%～70% of total amount of infiltration in two test areas,on the same area,the seepage flow of the Touzhai test area is 1.67 times more than the Duanjiaying test area,the contribution of soil-root interstice to the rainfall infiltration is notable.

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备注/Memo

备注/Memo:
收稿日期(Received date):2014-12-14; 修回日期(Accepted):2015-01-19。
基金项目(Foundation item):国家自然科学基金-云南联合基金重点项目(U1033601); 高等学校博士学科点专项科研基金(20135314110005)。[The National Natural Science Foundation of China-Yunnan Province Joint Fund and Research Fund for the Doctoral Program of Higher Education of China.]
作者简介(Biography):王帮团(1985-),男,云南昭通人,硕士,主要从事水文地质与工程地质方面研究。[Wang Bangtuan(1985-),male,born in Zhaotong,Yunnan Province,master,major in hydrogeology and engineering geology.] E-mail:wangbangtuan0910@163.com
*通信作者(Corresponding author):徐则民(1963-),男,教授,博士生导师,主要从事滑坡灾害孕育过程方面研究。[Xu Zemin(1963-),male,professor,mainly engaged in the process of landslide disaster.]E-mail:abc5100@188.com
更新日期/Last Update: 2016-07-30