Comparison of deep soil moisture in two re-vegetation watersheds in semi-arid regions
Comparison of deep soil moisture in two re-vegetation watersheds in semi-arid regions
复制标题
半干旱地区两个植被恢复流域深层土壤水分比较
DOI：
10.1016/j.jhydrol.2014.03.049
复制
发表时间：
2014-05
影响因子：
6.4
通讯作者：
an
中科院分区：
文献类型：
--
作者：
Yang Lei;Chen Liding;Wei Wei;Yu Yang;Zhang H;an
降雨入渗深度以下的土壤水分是半干旱生态系统植物生长的可靠水分资源。沿着黄土高原大规模的生态恢复，确定人工植被恢复的生态水文响应已成为当前研究的重要课题。通过野外观测和地统计学方法，获得了两个相邻植被恢复流域0-5 m深度的土壤水分数据。比较了不同土地利用类型、不同样带和不同流域的土壤水分剖面特征和空间格局。结果表明：（1）与农田和天然草地相比，引进植被显著降低了深层土壤水分。不同引种植被类型的深层土壤水分无显著差异。(2)不同土地利用方式下土壤水分的差异分析表明，土地利用方式对深层土壤水分的空间变异有显著影响。土地利用结构决定了土壤水分状况及其空间变异。(3)引入植物的植被恢复减少了流域尺度上深层土壤水分的空间异质性。建议加强土地利用管理，提高水分管理水平，保持植被恢复的可持续性。
Soil moisture stored below rainfall infiltration depth is a reliable water resource for plant growth in semi-arid ecosystems. Along with the large-scale ecological restoration in Chinese Loess Plateau, identifying the ecohydrological response to human-introduced vegetation restoration has become an important issue in current research. In this study, soil moisture data in depth of 0–5 m was obtained by field observation and geostatistical method in two neighboring re-vegetation watersheds. Profile characteristics and spatial pattern of soil moisture was compared between different land use types, transects, and watersheds. The results showed that: (1) Introduced vegetation drastically decreased deep soil moisture when compared with farmland and native grassland. No significant differences in deep soil moisture were found between different introduced vegetation types. (2) An analysis of differences in soil moisture for different land use patterns indicated that land use had significant influence on deep soil moisture spatial variability. Land use structure determined the soil moisture condition and its spatial variation. (3) Vegetation restoration with introduced plants diminished the spatial heterogeneity of deep soil moisture on watershed scale. The improvement of land use management was suggested to improve the water management and maintain the sustainability of vegetation restoration.
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影响因子：
2.6
作者：
Vivoni, Enrique R.;Rinehart, Alex J.;Wyckoff, Robert L.
通讯作者：
Wyckoff, Robert L.
黄土高原自然和模拟降雨条件下陡峭草地土壤水循环与水平衡特征
影响因子：
6.4
作者：
Chen, Hongsong;Shao, Mingan;Li, Yuyuan
通讯作者：
Li, Yuyuan
影响因子：
4.9
作者：
Zhiqiang Wang;Baoyuan Liu;Yan Zhang
通讯作者：
Zhiqiang Wang;Baoyuan Liu;Yan Zhang
影响因子：
3.2
作者：
J. Olley;G. Caitcheon
通讯作者：
J. Olley;G. Caitcheon
DOI：
10.1177/0309133310386514
发表时间：
2011-02-01
影响因子：
3.9
作者：
Legates, David R.;Mahmood, Rezaul;Nelson, Frederick E.
通讯作者：
Nelson, Frederick E.