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Patterns of salt transport and factors affecting typical shrub in desert-oases transition areas

文献类型： 外文期刊

作者： Wang, Jing 1 ; Xue, Lianqing 1 ; Liu, Hailong 3 ; Cao, Biao 4 ; Bai, Yungang 4 ; Xiang, Chenguang 1 ; Li, Xinghan 5 ;

作者机构： 1.Hohai Univ, Coll Hydrol & Water Resources, Nanjing 210098, Peoples R China

2.Wanjiang Univ Technol, Maanshan 243031, Anhui, Peoples R China

3.Univ Elect Sci & Technol China, Sch Resources & Environm, Chengdu 611731, Peoples R China

4.Xinjiang Inst Water Resources & Hydropower Res, Urumqi 830009, Peoples R China

5.Chinese Acad Trop Agr Sci, Inst Trop Biosci & Biotechnol, Hainan Key Lab Funct Components & Utilizat Marine, Haikou 571101, Peoples R China

关键词： Desert-oases transition areas; Soil salinity transport; Environmental indicators; Tarim river basin; The van genuchten soil salinity retention; ensemble model (TVGSSREM-3D)

期刊名称：ENVIRONMENTAL RESEARCH （ 影响因子：8.3； 五年影响因子：8.2 ）

ISSN： 0013-9351

年卷期： 2023 年 236 卷

页码：

收录情况： SCI

摘要： Soil salinization and water deficits are considered the primary factors limiting economic development and environmental improvement in arid areas. However, there remains limited knowledge of the adaptability of typical shrubs to salinization of desert areas in arid zones. This study was conducted in a desert oasis transition zone (Tarim River, China), aiming to investigate: i) the spatial-temporal changes in soil salinity; ii) the interactions between the pedoenvironment vs typical shrub (Calligonum mongolicum). The van Genuchten soil salinity retention ensemble model (TVGSSREM-3D) was developed to simulate variations in soil water-salt transport in the desert-oasis zone and to accurately explain the main factors influencing Calligonum mongolicum desert-oases transition areas. The results showed that monthly average salinity ranged from 2.0 to 8.0 g kg-1, with a peak in August (9.17 g kg-1). The presence of human activities (Salt Drainage Canal) and the distribution of Calligonum mongolicum resulted in a clear spatial salinity zonation. Moreover, analysis of environmental indicators using the TVGSSREM-3D model revealed strong correlations between the distribution of salinity in Calligonum mongolicum desert-oases transition areas and groundwater depth (GD), minimum relative humidity (MRH), and water vapor pressure (WVP). These findings provide a scientific basis for stabilizing, restoring, and reconstructing the ecosystem of the oasis-desert transition zone.

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