干旱区生态环境知识资源中心(Arid): 黄土高原淤地坝土壤水分和浅层地下水时空分布特征解析

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	黄土高原淤地坝土壤水分和浅层地下水时空分布特征解析
其他题名	Spatiotemporal Distribution of Soil Water and Shallow Groundwater in Check Dams in the Loess Plateau of China
	袁鸿猷; 樊军; 金沐; 马理辉
来源期刊	灌溉排水学报
ISSN	1672-3317
出版年	2020
卷号	39 期号:10
中文摘要	【目的】探明黄土高原淤地坝的土壤水分和浅层地下水时空分布规律。【方法】依据电阻率成像法,利用高密度电法仪在陕西省神木市六道沟小流域2座淤地坝内布置多条测线测定了土壤电阻率分布,结合实测土壤含水率与浅层地下水位,探究淤地坝浅层地下水空间分布特征并估算其储量。【结果】土壤电阻率与土壤含水率呈显著幂函数关系(P<0.05),土壤电阻率随深度增加而减小,而浅表层土壤含水率随着深度的增加而逐渐增大,存在分层现象。从沟头至沟尾,A、B坝地的浅层地下水埋深逐渐增大,浅层地下水储量呈沟尾大于沟头而中部最小的分布规律,且具有季节性变化的特征,冬末至次年夏季为土壤含水率消耗期,夏末秋初为蓄积期,夏季的储水量最小,其值分别为85 949、94 196 m~3,冬季的储水量值达到最大,其值分别为93 486、99 309 m~3。【结论】黄土高原淤地坝储存了一定的水量,并有明显的季节波动,未来应重视这部分水资源的调蓄利用。
英文摘要	【Background and objective】Soil water distribution in check dams is an important factor affecting agricultural production and ecological environment reconstruction in arid and semi-arid areas. The objective of this paper is to explore the spatiotemporal change in soil moisture and shallow groundwater in the check dams in the loess plateau of China.【Method】Soil moisture distribution was measured using the electrical resistivity tomography, in which several baselines were set up to measure the soil resistivity in two check dams at Liudaogou, Shenmu. Using the measured soil moisture and depth of shallow groundwater table, we analyzed the spatiotemporal change in shallow groundwater table as well as water storage in the aquifers.【Result】 There was a significant power-law relationship between soil resistivity and soil moisture content with P<0.05. Soil resistivity decreased downwards along the soil depth due to the decrease in soil moisture. From the gully head to the gully tail, the depth of shallow groundwater table in both dams increased, while storage of the groundwater declined first and then started to increase after passing the middle of the gully. Soil lost water from early winter to summer, while gained water from late summer to early autumn. The groundwater storage reached its lowest point in summer with its value ranging from 85 949 to 93 486 m~3, and peaked in winter with its value ranging from 94 196 to 99 309 m~3. 【Conclusion】Water exists in the check dams and the shallow groundwater in it changes seasonally. Coordinating use of this type of water resource could ameliorate temporary water shortage.
中文关键词	黄土高原 ; 淤地坝 ; 电阻率成像法 ; 土壤电阻率 ; 浅层地下水
英文关键词	Loess plateau check dam electrical resistivity tomography soil resistivity shallow groundwater
类型	Article
语种	中文
收录类别	CSCD
WOS类目	Agriculture
CSCD记录号	CSCD:6842944
资源类型	期刊论文
条目标识符	http://119.78.100.177/qdio/handle/2XILL650/353585
作者单位	袁鸿猷, 西北农林科技大学资源环境学院, 杨凌, 陕西 712100, 中国. 金沐, 西北农林科技大学资源环境学院, 杨凌, 陕西 712100, 中国. 樊军, 西北农林科技大学资源环境学院;;中国科学院水利部水土保持研究所, ;;黄土高原土壤侵蚀与旱地农业国家重点实验室, 杨凌;;杨凌, 陕西;;陕西 712100;;712100, 中国. 马理辉, 西北农林科技大学水土保持研究所, 杨凌, 陕西 712100, 中国.
推荐引用方式 GB/T 7714	袁鸿猷,樊军,金沐,等. 黄土高原淤地坝土壤水分和浅层地下水时空分布特征解析[J],2020,39(10).
APA	袁鸿猷,樊军,金沐,&马理辉.(2020).黄土高原淤地坝土壤水分和浅层地下水时空分布特征解析.灌溉排水学报,39(10).
MLA	袁鸿猷,et al."黄土高原淤地坝土壤水分和浅层地下水时空分布特征解析".灌溉排水学报 39.10(2020).