黄土浅层降雨入渗规律研究

马鹏辉; 彭建兵; 朱兴华; 同霄; 孟振江; 段钊

doi:10.13961/j.cnki.stbctb.2017.04.042

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黄土浅层降雨入渗规律研究

试验研究

- 黄土浅层降雨入渗规律研究
- Regularities of Rainfall Infiltration in Shallow Loess
- 水土保持通报 2017年37卷第4期页码：248-253
- 作者机构：
  
  1. 西部矿产资源与地质环境教育部重点实验室,陕西,西安,710054
  2. 长安大学地质工程与测绘学院,陕西,西安,710054
- 作者简介：
- 基金信息：
  
  国家基础科学（973）发展计划项目“黄土重大灾害成灾机理及灾害链演化规律”（2014CB744702）;国家自然科学基金项目（41402255）;中央高校基本科研业务费（310826174001）;地质灾害防治与地质环境保护国家重点实验室开放基金项目（SKLGP2017K010）
- DOI：10.13961/j.cnki.stbctb.2017.04.042
  中图分类号：
- 纸质出版：2017
- 稿件说明：
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马鹏辉, 彭建兵, 朱兴华, 等. 黄土浅层降雨入渗规律研究[J]. 水土保持通报, 2017,37(4):248-253.

MA Penghui, PENG Jianbing, ZHU Xinghua, et al. Regularities of Rainfall Infiltration in Shallow Loess[J]. Bulletin of Soiland Water Conservation, 2017, 37(4): 248-253.
马鹏辉, 彭建兵, 朱兴华, 等. 黄土浅层降雨入渗规律研究[J]. 水土保持通报, 2017,37(4):248-253. DOI： 10.13961/j.cnki.stbctb.2017.04.042.

MA Penghui, PENG Jianbing, ZHU Xinghua, et al. Regularities of Rainfall Infiltration in Shallow Loess[J]. Bulletin of Soiland Water Conservation, 2017, 37(4): 248-253. DOI： 10.13961/j.cnki.stbctb.2017.04.042.

摘要

[目的]探讨黄土浅层降雨入渗规律，为研究降雨黄土滑坡机理提供理论参考。[方法]以陕西省延安市大路沟滑坡为例，在不同深度裂缝处与非裂缝处布置监测仪器，结合数值模拟手段分析入渗规律。[结果]（1）研究区浅层地表通过降雨入渗补给，蒸发排泄。降雨对土体含水量的影响主要体现在土体含水量对降雨的响应时间和响应程度上，存在一定的滞后性，并且随着深度的增加滞后性越明显，蒸发排泄对土体含水量的影响表现在土体的深度和受光面积上，土体的深度越大，土体体积含水量受到蒸发作用影响越小。（2）黄土浅层土体含水量对降雨十分敏感，当降雨量<3 mm/d时，黄土浅层地表土体含水量基本不受降雨的影响，当3 mm/d < 降雨量 < 40 mm/d时，土体含水量随雨水的入渗而变化，并且含水量的变化与降雨量大小成正相关。[结论]由模拟不同工况下雨水入渗过程显示，在雨水入渗过程中，浅层裂缝对降雨入渗深度影响很小，并且研究区黄土入渗深度有限。

Abstract

[Objective] To explore the regularities of rainfall infiltration in shallow loess

and to provide reference for studying the mechanism of loess landslide caused by rainfall.[Methods] One monitoring site was set up in Dalu Dicth

Shaanxi Province by arranging the monitoring instrument both in cracks and no-cracks at different depths. The observed results were dealt with numerical simulation to analyze the regularities of rainfall infiltration.[Results] (1) Soil moisture was recharged by rainfall and was drained away through evaporation in the area. The main affect of rainfall on water content was the tempo-spatial responses to the rainfall. There had a hysteresis for temporal response

which was more obvious with the increase of the depth. The effect of evaporation on soil water content was influenced by the depth and the exposed area of soil. The greater the depth of soil was

the smaller the effect would be. (2) The soil water content was very sensitive to rainfall

e.g.

when precipitation was less than 3 mm/d

the rainfall almost had no effects on the water content of soil

however

when precipitation was 3~40 mm/d

the rainfall was observed having positive effect on soil water content.[Conclusion] The infiltration process simulation under different conditions showed that the effect of crack was little

and also the infiltration depth of loess in study area was limited.

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references

Daily G C, Myers J P, Reichert J. Nature's service:societal dependence on natural ecosystems[M].Washington:Island Press, 1997.

Seppelt R, Dormann C F, Eppink F V, et al. A quantitative review of ecosystem service studies:Approaches,shortcomings and the road ahead[J].Journal of Applied Ecology, 2011,48(3):630-636.

Fisher B, Turner R K, Morling P. Defining and classifying ecosystem services for decision making[J].Ecological Economics, 2009,68(3):643-653.

Chen Zhongxin, Zhang Xinshi. Value of ecosystem services in China[J]. Chinese Science Bulletin, 2000,45(10):870-876.

Pearce D. Auditing the Earth:The value of the world's ecosystem services and natural capital[J]. Environment, 1998,40(2):23-28.

黄湘,陈亚宁,马建新.西北干旱区典型流域生态系统服务价值变化[J].自然资源学报,2011,26(8):1364-1376.

Costanza R, Arge R, Groot R, et al. The value of the world's ecosystem services and natural capital[J]. Nature, 1997,387(7):253-260.

谢高地,鲁春霞,冷允法,等.青藏高原生态资产的价值评估[J].自然资源学报,2003,18(2):189-196.

Li Renqiang, Dong Ming, Cui Jianyong, et al. Quantification of the impact of land-use changes on ecosystem services:A case study in Pingbian County, China[J]. Environmental Monitoring & Assessment, 2007, 128(4):503-510.

Kreuter U P, Harris H G, Matlock M D, et al. Change in ecosystem service values in the San Antonio area, Texas[J]. Ecological Economics, 2001,39(3):333-346.

Hulst R. On the dynamics of vefetation:Markovchains as models of succession[J]. Vegetation, 1979,40(1):3-14.

胡汝晓,赵松义,谭周进,等.烟草连作对稻田土壤微生物及酶的影响[J].核农学报,2007,21(5):494-497.

王晓峰,任志远,黄青.农牧交错区县城土地利用变化及驱动力分析:以陕北神木县为例[J].干旱区地理,2003,26(4):402-407.

郜鲁豪,徐旌.基于Markov模型的安宁市土地利用预测[J].云南地理环境研究,2010,22(2):87-89.

蓝永超,丁永建,康尔酒,等.黑河流域水资源动态变化及其趋势的灰色Markov链预测[J].中国沙漠,2003,24(3):435-440.

李黔湘,王华斌.基于马尔科夫模型的涨渡湖流域土地利用变化预测[J].资源科学,2008,30(10):1542-1543.

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