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[1]YUAN Shuilong,LI Zhanbin,ZHANG Yang,et al.Impact of Layered Deposition on Temporal and Spatial Distribution Characteristic of Soil Moisture of Check Dam Land[J].Research of Soil and Water Conservation,2018,25(03):29-34.

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Impact of Layered Deposition on Temporal and Spatial Distribution Characteristic of Soil Moisture of Check Dam Land

Research of Soil and Water Conservation[ISSN 1005-3409/CN 61-1272/P] Volume: 25 Number of periods: 2018 03 Page number: 29-34 Column: Public date: 2018-04-10

Title:: Impact of Layered Deposition on Temporal and Spatial Distribution Characteristic of Soil Moisture of Check Dam Land

Author(s):: YUAN Shuilong^1,2, LI Zhanbin^2,3, ZHANG Yang^1,2, DONG Qiguang¹, WANG Dan²; 1. Institute of Land Engineering and Technology, Shaanxi Provincial Land Engineering Construction Group Co., Ltd., Xi’an 710075, China;
2. State Key Laboratory Base of Eco-Hydraulic Engineering in Arid Area, Xi’an University of Technology, Xi’an 710048, China;
3. State Key Laboratory of Soil Erosion and Dryland Farming on the Loess Plateau, Institute of Soil and Water Conservation, Chinese Academy of Sciences and Ministry of Water Resources, Yangling, Shaanxi 712100, China

Keywords:: check dam; layered deposition; soil moisture; temporal and spatial distribution

CLC:: S157

DOI:: -

Abstract:: In order to effectively understand the spatial and temporal distribution characteristics of soil moisture in the check dam land of the Loess Plateau, we analyzed the statistical characteristic of soil moisture in check dam land through the long-term monitoring of soil moisture of the check dam No.2 in the Wangmaogou watershed. The results showed that:(1) the soil moisture in different soil layers moderately varied, among which the range of the surface layer was relatively larger; the water content of layer 0~2.4 m was between 9.92% and 23.70%, which tended to decrease at first and then increase with the increase of soil depth; (2) soil moisture of check dam land had an obvious stratification, which were moderately variable over time in most monitoring sites; the surface soil moisture changed sharply and its variation coefficient began to decrease with the increase of depth, which means the water change degree reduced; based on the variation coefficient, the soil moisture of check dam land could be divided into four levels:the drastic change layer (0~0.20 m), the active layer (0.20~0.60 m),the less active layer (0.60~1.40 m), the relatively stable layer (below1.40 m); (3) soil moisture contents of the different layers in front of dam were obviously higher than those of the dam and behind the dam. The soil moisture between 0~0.4 m and below 1.4 m layers of check dam land were significantly higher than that of slope land, while those between 0.40~1.40 m layer showed an opposite trend, and the variation coefficients of water contents over time of different soil layers in check dam land were all less than those of slope land.

References:: [1] 李勉,杨吉山,杨二,等.黄土丘陵区小流域淤地坝建设对生态环境的影响[C]//中国地理学会2011年学术年会,2011.
[2] 魏霞,李占斌,李勋贵,等.基于灰关联的坝地分层淤积量与侵蚀性降雨响应研究[J].自然资源学报,2007,22(5):842-850.
[3] 张红娟,延军平,周立花,等.黄土高原淤地坝对水资源影响的初步研究:以绥德县韭园沟典型坝地为例[J].西北大学学报:自然科学版,2007,37(3):475-478.
[4] 徐学选,张北赢,白晓华.黄土丘陵区土壤水资源与土地利用的耦合研究[J].水土保持学报,2007,21(3):166-169.
[5] 甄自强,黄金柏,王斌,等.黄土高原北部淤地坝区域土壤水分模拟及水分有效性:以六道沟流域为例[J].水资源与水工程学报,2016,27(3):226-232.
[6] 李洪建,王孟本,柴宝峰.黄土高原土壤水分变化的时空特征分析[J].应用生态学报,2003,14(4):515-519.
[7] 姚雪玲,傅伯杰,吕一河.黄土丘陵沟壑区坡面尺度土壤水分空间变异及影响因子[J].生态学报,2012,32(16):4961-4968.
[8] 赵磊磊,朱清科,聂立水,等.陕北黄土区陡坡土壤水分变异规律研究[J].生态环境学报,2012,21(2):253-259.
[9] 李谦,郑锦森,朱青,等.太湖流域典型土地利用类型土壤水分对降雨的响应[J].水土保持学报,2014,28(1):6-11.
[10] 赵文举,李晓萍,范严伟,等.西北旱区压砂地土壤水分的时空分布特征[J].农业工程学报,2015,31(17):144-151.
[11] Jacobs J M, Mohanty B P, Hsu E C, et al. SMEX02:Field scale variability, time stability and similarity of soil moisture[J]. Remote Sensing of Environment, 2004,92(4):436-446.
[12] Cerdã A. Soil erosion after land abandonment in a semiarid environment of southeastern Spain[J]. Arid Soil Research & Rehabilitation, 1997,11(2):163-176.
[13] 魏霞,李占斌,沈冰,等.陕北子洲县典型淤地坝淤积过程和降雨关系的研究[J].农业工程学报,2006,22(9):80-84.
[14] 黄河水利委员会绥德水土保持科学试验站.水土保持试验研究成果汇编(第二集)[R].绥德水土保持科学试验站,1985.
[15] 王继夏,孙虎,王祖正.延安碾庄沟流域梯田与坝地土壤水分对比分析[J].干旱地区农业研究,2007,25(1):88-93.
[16] 惠波.黄土高原小流域淤地坝系淤积特征及其生态效应研究[D].西安:西安理工大学,2015.
[17] 赵培培.黄土高原小流域典型坝地土壤水分和泥沙空间分布特征[D].北京:中国科学院研究生院,2010.
[18] Heilig A, Steenhuis T S, Walter M T, et al. Funneled flow mechanisms in layered soil:field investigations[J]. Journal of Hydrology, 2003,279(1/4):210-223.
[19] Walter M T, Kim J S, Steenhuis T S, et al. Funneled flow mechanisms in a sloping layered soil:laboratory investigation[J]. Water Resources Research, 2000,36(4):841-849.
[20] Hilberts A G J, Troch P A, Paniconi C. Storage-dependent drainable porosity for complex hillslopes[J]. Water Resources Research, 2005,41(6):294-311.

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