Reduction Benefits of Different Land Cover on Runoff-Sediment and Its Erosion Factors Under Simulated Rainfall

SUN Jiamei; YU Xinxiao; LIANG Hongru; CHANG Yu

doi:10.13961/j.cnki.stbctb.2015.02.010

您当前的位置：

首页 >

文章列表页 >

Reduction Benefits of Different Land Cover on Runoff-Sediment and Its Erosion Factors Under Simulated Rainfall

- Reduction Benefits of Different Land Cover on Runoff-Sediment and Its Erosion Factors Under Simulated Rainfall
- Bulletin of Soiland Water Conservation Vol. 35, Issue 2, Pages: 46-51(2015)
- 作者机构：
  
  北京林业大学水土保持与荒漠化防治教育部重点实验室,北京,100083
- 作者简介：
- 基金信息：
- DOI：10.13961/j.cnki.stbctb.2015.02.010
  CLC：
- Published：2015
- 稿件说明：
移动端阅览
SUN Jiamei, YU Xinxiao, LIANG Hongru, et al. Reduction Benefits of Different Land Cover on Runoff-Sediment and Its Erosion Factors Under Simulated Rainfall[J]. Bulletin of Soiland Water Conservation, 2015, 35(2): 46-51.
DOI：

SUN Jiamei, YU Xinxiao, LIANG Hongru, et al. Reduction Benefits of Different Land Cover on Runoff-Sediment and Its Erosion Factors Under Simulated Rainfall[J]. Bulletin of Soiland Water Conservation, 2015, 35(2): 46-51. DOI： 10.13961/j.cnki.stbctb.2015.02.010.

摘要

[目的] 研究不同坡度和降雨强度条件下

不同覆被的减流减沙效果

定量分析各侵蚀影响因子的权重。[方法] 采用室内人工模拟降雨的方法。[结果] (1)与裸地相比

枯落物、砾石和黑麦草均具有良好的减流减沙效果

枯落物的减流效果最好

减流效益最大为79.7%

平均减流效益46.1%。其次为黑麦草

最大减流效益68.9%。第三为砾石

最大减流效益68.0%。(2)黑麦草的减流效果存在临界盖度

其值在60%左右

当盖度大于60%后其减流效益不再增加。(3)减沙效益随着盖度的增加而增加

枯落物、砾石和草地最大减沙效益分别为98.8%

64.6%和88.1%。(4)经过灰色关联定量分析得出选取的8个影响因子与径流均有较高的关联性

关联度都在0.6223以上。[结论] 不同试验条件和不同覆被对坡面产流产沙具有明显影响

降雨强度和降雨量是对泥沙量影响较大的因素

降雨强度、降雨量、覆被盖度和坡度是对径流量影响较大的4个因子

影响因子与径流和泥沙的关联度和关联序因土壤种类不同而存在差异。

Abstract

[Objective] To explore the effect of different rainfall intensity and slope gradient under the conditions of different cover on runoff and sediment reduction effect

and to quantitative determine the weight of erosion influence factors.[Methods] Use the methods of artificial rainfall and gray correlation analysis.[Results] (1) Compared with bare land

the slope with litter

gravel and ryegrass had a good effect on runoff and sediment reduction

reducing the flow of benefits to a maximum of 79.7%

the average current reducing benefits was 46.1%. Followed by ryegrass

with maximum flow reducing benefits of 68.9%. The third is gravel

with maximum flow reducing benefits of 68%. (2) Ryegrass flow reducing effect exists critical coverage

its value was in the 60% or so

when the coverage was more than 60% after the current reducing benefits

no longer increased. (3) Sediment reduction effect increased with the increase of coverage

the biggest sediment reduction effect of the litter

gravel and lawn were 98.8%

64.6% and 88.1% respecitively. (4) Through gray correlation quantitative analysis on selected 8 influence factors and runoff had high correlation

correlation degree was more than 0.622 3.[Conclusion] The different test conditions and different cover on runoff and sediment yield had significant effect

the rainfall intensity and rainfall is larger on the factors affecting sediment yield

rainfall intensity

rainfall

cover and slope were 4 factors which had greater influence on runoff

the influence of correlation degree and correlation factors and runoff and sediment sequence for different types of soil.

关键词

Keywords

references

王辉,王全九,邵明安.人工降雨条件下黄土坡面养分随径流迁移试验[J].农业工程学报,2006,22(6):39-44.

余新晓,张晓明,武思宏,等.黄土区林草植被与降水对坡面径流和侵蚀产沙的影响[J].山地学报,2006,24(1):19-26.

张振明,余新晓,牛健植,等.不同林分枯落物层的水文生态功能[J].水土保持学报,2005,19(3):139-143.

程金花,张洪江,史玉虎,等.三峡库区几种林下枯落物的水文作用[J].北京林业大学学报,2003,25(2):8-13.

冯国禄,龚军慧.人工降雨对稻田中氮磷动态变化的影响研究[J].水土保持学报,2011,25(2):130-133.

田育新,李锡泉,陶接来,等.人工降雨条件下不同坡度红壤坡面迳流泥沙变化特征研究[J].湖南林业科技,2006,33(1):1-3.

杨晓俊.降雨产流影响因素分析[J].地下水,2007,29(5):50-51,113.

王志伟,陈志成,艾钊,等.不同雨强与坡度对沂蒙山区典型土壤坡面侵蚀产沙的影响[J].水土保持学报,2012,26(6):17-20,26.

甘卓亭,叶佳,周旗,等.模拟降雨下草地植被调控坡面土壤侵蚀过程[J].生态学报,2010,30(9):2387-2396.

董月群,李淑芹,原翠萍,等.黑麦草对黄土坡面降雨产流产沙过程的影响[J].中国农业大学学报,2011,16(4):67-73.

李鹏,李占斌,郑良勇.黄土坡面径流侵蚀产沙动力过程模拟与研究[J].水科学进展,2006,17(4):444-449.

周中,傅鹤林,刘宝琛,等.土石混合体边坡人工降雨模拟试验研究[J].岩土力学,2007,28(7):1391-1396.

王占礼,靳雪艳,马春艳,等.黄土坡面降雨产流产沙过程及其响应关系研究[J].水土保持学报,2008,22(2):24-28.

闫俊华,周国逸,申卫军.用灰色关联法分析森林生态系统植被状况对地表径流系数的影响[J].应用与环境生物学报,2000,6(3):197-200.

李香云,王玉杰.不同植被类型对地表径流影响的灰色关联度分析[J].水土保持通报,2007,27(2):83-86.

孙晓东,焦玥,胡劲松.基于灰色关联度和理想解法的决策方法研究[J].中国管理科学,2005,13(4):63-68.

田民,刘思峰,卜志坤.灰色关联度算法模型的研究综述[J].统计与决策,2008(1):24-27.

刘振波,史学正,于东升,等.模拟降雨下土壤前期含水量对土壤可蚀性的影响[J].生态环境,2008,17(1):397-402.

琚彤军,刘普灵,徐学选,等.不同次降雨条件对黄土区主要地类水沙动态过程的影响及其机理研究[J].泥沙研究,2007(4):65-71.

唐小娟,郭雪莲.几种坡面径流调控措施的筛选试验研究[J].水土保持研究,2008,15(5):125-128.

Views

1276

下载量

CSCD

Alert me when the article has been cited

提交

Tools

Publicity Resources

Soil and water conservation effects of two urban shrubs under simulated rainfall conditions

Runoff and Quantity of Soil Erosion Uunder Conservation Tillage System by Simulated Rainfall

Nutrient Loss of Different Slopeland-use Types in Xiaolangdi Gorges Reservoir Area

Infiltration Characteristics Under Different Land Uses in the Loess Hilly Area

Effects of Slope Length on Detachment and Transport Processes on a Loessial Hiilslope

Related Author

Hu Jing

Ma Jiangang

Zhao Tonghui

Wang Xinyu

Chen Juanjuan

ZHAO Jun-fan

HUANG Gao-bao

XIN Ping

Related Institution

Zhanyi Karst Ecosystem Positioning Observation;Research Station， National Forestry and Grassland Administration

College of Soil and Water Conservation， Southwest Forestry University

General Station of Forestry Sci-Tech Extension of Gansu Province

Faculty of Agronomy,Gansu Agricultural University

⁰