[1]张小娜,冯杰.粉砂壤土中大孔隙对坡地产汇流的影响[J].华侨大学学报(自然科学版),2010,31(3):332-336.[doi:10.11830/ISSN.1000-5013.2010.03.0332]
 ZHANG Xiao-na,FENG Jie,Experimental Research on the Effects of Macropores Upon Overland Flow in Silt Loam Soil[J].Journal of Huaqiao University(Natural Science),2010,31(3):332-336.[doi:10.11830/ISSN.1000-5013.2010.03.0332]
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粉砂壤土中大孔隙对坡地产汇流的影响()
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《华侨大学学报(自然科学版)》[ISSN:1000-5013/CN:35-1079/N]

卷:
第31卷
期数:
2010年第3期
页码:
332-336
栏目:
出版日期:
2010-05-20

文章信息/Info

Title:
Experimental Research on the Effects of Macropores Upon Overland Flow in Silt Loam Soil
文章编号:
1000-5013(2010)03-0332-05
作者:
张小娜冯杰
河海大学水文水资源与水利工程科学国家重点实验室; 河海大学水文水资源学院; 中国水利水电科学研究院水资源所
Author(s):
ZHANG Xiao-na12 FENG Jie2 3
1.Key Laboratory of Hydrology-Water Resources and Hydraulic Engineer, Hohai University, Nanjing 210098, China; 2.College of Water Resources and Hydrology, Hohai University, Nanjing 210098, China; 3.Institute of Water Resources Research, Institute of China Water Resources and Hydropower Research, Beijing 100044, China
关键词:
粉砂壤土 大孔隙 坡面流 阻力系数 产沙量
Keywords:
silt loam soilmacropore slope outflow resistance coefficient cumulative sediment yield
分类号:
S152
DOI:
10.11830/ISSN.1000-5013.2010.03.0332
文献标志码:
A
摘要:
以室内试验槽为平台,采用人工模拟降雨实验,研究粉砂壤土大孔隙对坡面出流、坡面流流速、坡面流阻力系数、曼宁糙率、雷诺数、弗劳德数和坡面累积产沙量的影响.结果表明,在粉砂壤土中,相对于无大孔隙试验槽,含有大孔隙的试验槽的坡面阻力系数和曼宁糙率较大,而坡面出流量、坡面初始出流时间、雷诺数、弗劳德数坡面流流速,以及坡面累积产沙量则较小.两坡面流的流态均为层流和缓流,累积产沙量随时间的变化过程可用幂函数描述.
Abstract:
Based on indoor soil tank experiment and the artificial rainfall simulation,the effects of macropore in silt loam on various parameters are analyzed,such as the slope outflow,the velocity of overland flow,resistance coefficient,manning roughness,Reynolds number,Froude number and slope cumulative sediment yield.The results show: resistance coefficient and manning roughness in macropore soil tank are larger than the ones in non-macropore soil tank,but the amount of slope outflow,the initial time of slope outflow,Reynolds number,Froude number and slope cumulative sediment yield are less than those in non-macropore soil tank.The flow patterns in both slopes are laminar flow and slow flow.The power function can describe the relationship between the amount of cumulative sediment yield and the time.

参考文献/References:

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备注/Memo

备注/Memo:
国家自然科学基金资助项目(50609005); 教育部博士点专项科研基金资助项目(20050294002); 霍英东青年教师基金资助项目(101075)
更新日期/Last Update: 2014-03-23