Effects of Vegetation Distribution on Earth Surface Roughness

ZHANG Shengtang; LIANG Bo; ZHANG Kai

doi:10.13961/j.cnki.stbctb.2015.05.074

您当前的位置：

首页 >

文章列表页 >

Effects of Vegetation Distribution on Earth Surface Roughness

- Effects of Vegetation Distribution on Earth Surface Roughness
- Bulletin of Soiland Water Conservation Vol. 35, Issue 5, Pages: 45-48(2015)
- 作者机构：
  
  1. 山东科技大学地球科学与工程学院,山东,青岛,266590
  2. 陕西省水文水资源勘测局,陕西,西安,710068
- 作者简介：
- 基金信息：
- DOI：10.13961/j.cnki.stbctb.2015.05.074
  CLC：
- Published：2015
- 稿件说明：
移动端阅览
ZHANG Shengtang, LIANG Bo, ZHANG Kai. Effects of Vegetation Distribution on Earth Surface Roughness[J]. Bulletin of Soiland Water Conservation, 2015, 35(5): 45-48.
DOI：

ZHANG Shengtang, LIANG Bo, ZHANG Kai. Effects of Vegetation Distribution on Earth Surface Roughness[J]. Bulletin of Soiland Water Conservation, 2015, 35(5): 45-48. DOI： 10.13961/j.cnki.stbctb.2015.05.074.

摘要

[目的] 分析在植被淹没或非淹没状态不同植被覆盖密度影响下

地表糙率的变化规律与特征

为进一步研究植被对地表糙率的影响提供参考。[方法] 试验以塑料棒模拟植被分布

模拟出不同密度

分别进行放水试验。[结果] 在植被淹没与非淹没状态下地表糙率的变化不同

在非淹没状态时

地表糙率随着平均水深的增加呈减小的趋势

在淹没水深小时

地表糙率随着平均水深的增加而先增大后减小

而当淹没水深很大时

地表糙率趋向于一个稳定值。[结论] 地表糙率取值随植被覆盖密度的增大而增大;同一下垫面情况下

不同的水流方向

地表糙率取值不相同。

Abstract

[Objective] The change rules and characteristics of the surface roughness was analyzed under the station of submerged and unsubmerged and the different vegetation density in order to provide the reference for studying the effect of vegetation on the surface roughness.[Methods] The plastic rods

as a surrogate for vegetation distribution

were used to simulate two different densities in the flushing experiments.[Results] The earth surface roughness changes were different between the submerged vegetation and unsubmerged vegetation. Under the unsubmerged condition

the earth surface roughness decreased with the increase of the average water depth.While submerged depth was low

the earth surface roughness firstly increased and then decreased with the increase of the average water depth. When the submerged depth was very deep

the earth surface roughness tends to be a stable value.[Conclusion] The earth surface roughness value increases along with the vegetation density. Under the same underlying surface

the surface roughness value changes with different flow direction.

关键词

Keywords

references

Wu Fuchun, Shen Wenhseis, Chou Yiju. Variation of roughness coefficients for unsubmerged and submerged vegetation[J]. Journal of Hydraulic Engineering, 1999,125(9):934-942.

Stone B M, Shen H T. Hydraulic resistance of flow in channels with cylindrical roughness[J]. Journal of Hydraulic Engineering, 2002,128(5):500-506.

James C S, Birkhead A L, Jordanova A A, et al. Flow resistance of emergent vegetation[J]. Journal of Hydraulic Research, 2004,42(4):390-398.

拾兵,王川源,尹则高,等.淹没植物对河道糙率的影响[J].中国海洋大学学报,2009,39(2):295-298.

曾玉红,槐文信,张健,等.非淹没刚性植被流动阻力研究[J].水利学报,2011,42(7):834-838.

Hsieh T. Resistance of cylinder piers in open-channel flow[J]. Journal of Hydraulics Division, 1964,90(1):161-173.

Li R M, Shen H W. Effect of tall vegetation on flow and sediment[J]. Journal of Hydraulics Division, 1973,99(5):793-814.

Dunn C, Lopez F, Garcia M. Mean flow and turbulence in a laboratory channel with simulated vegetation[M]. Hydrosystems Laboratory, Department of Civil Engineering, University of Lllinois at Urbana-Champaign,1996.

闫旭峰,周苏芬,黄尔,等.植被条件下坡面薄层水流动力学特性试验研究[J].四川大学学报:工程科学版,2012,44(2):26-30.

Kim J, Ivanov V Y, Katopodes N D, Hydraulic resistance to overland flow on surfaces with partially submerged vegetation[J], Water Resources Research, 2012,48(10):1-19.

拉尼亚.非淹没植被水流特性研究[D].南京:河海大学,2005.

黄文沛.非淹没刚性植被对水流阻力和水流能量特性影响的研究[D].北京:华北电力大学,2013.

姬昌辉,洪大林,丁瑞,等.含淹没植被明渠水位及糙率变化试验研究[J].水利水运工程学报,2013,(1):60-65.

房春艳,罗宪.滩地植被化复式河槽的水流阻力特性试验[J].重庆交通大学学报:自然科学版,2013,32(4):668-672.

闫静,唐洪武,田志军,等.植物对明渠流速分布影响的试验研究[J].水利水运工程学报,2011(4):138-142.

Noarayanan L, Murali K, Sundar V. Manning's‘

’co-efficient for flexible emergent vegetation in tandem configuration[J]. Journal of Hydro-environment Research, 2012,6(1):51-62.

Tanaka N, Yagisawa J. Flow structures and sedimentation characteristics around clump-type vegetation[J]. Journal of Hydro-environment Research, 2010,4(1):15-25.

倪汉根,顾峰峰.湿地非淹没芦苇水流阻力的试验研究[J].水动力学研究与进展:A辑,2005,20(2):167-173.

吴福生.含植物明渠水动力特性研究[D].南京:南京水利科学研究院, 2009.

李勉,姚文艺,陈江南,等.草被覆盖下坡面-沟坡系统坡面流阻力变化特征试验研究[J].水利学报,2007,38(1):112-119.

Chow V T. Open-channel hydraulics[M]. New York:McGraw-Hill, 1959.

肖培青,姚文艺,李莉,等.植被影响下坡面流阻力变化特征研究[J].泥沙研究,2013(3):1-5.

潘成忠,上官周平.降雨和坡度对坡面流水动力学参数的影响[J].应用基础与工程科学报,2009,17(6):843-851.

田风霞,刘刚,郑世清,等.草本植物对土质路面径流水动力学特征及水沙过程的影响[J].农业工程学报,2009,25(10):25-29.

Engman E T. Roughness coefficients for routing surface runoff[J]. Journal of Irrigation and Drainage Engineering, 1986,112(1):39-53.

张升堂,康绍忠.基于矢量糙率的栅格单元流量分配模型[J].水利学报,2006,36(11):1326-1330.

Views

1836

下载量

CSCD

Alert me when the article has been cited

提交

Tools

Publicity Resources

Spatiotemporal heterogeneity of ecosystem service value in typical estuarine deltas of China

Spatiotemporal characteristics and decoupling elasticity of agricultural carbon emissions in Yimeng Mountainous area

Impact of digital economy on value conversion efficiency of agricultural ecological products in Yangtze River economic belt

Spatiotemporal evolution and influencing mechanisms of coupling coordination of carbon reduction-pollution reduction-green expansion-economic growth in urban agglomeration in middle reaches of Yangtze River

Runoff and sediment yield characteristics of typical soil slopes in Xin’an River basin under different rainfall intensities and slope gradients

Related Author

No data

Related Institution

No data

⁰