文献类型： 外文期刊

作者： Ling, Zhen ¹ ; Shi, Zhengtao ² ; Gu, Shixiang ³ ; He, Guangxiong ⁵ ; Liu, Xinyou ⁶ ; Wang, Tao ¹ ; Zhu, Weiwei ¹ ; Gao, Li ¹ ;

作者机构： 1.Kunming Univ, Dept Architecture Engn, Kunming 650214, Yunnan, Peoples R China

2.Yunnan Normal Univ, Fac Geog, Kunming 650500, Yunnan, Peoples R China

3.Wuhan Univ, State Key Lab Water Resources & Hydropower Engn S, Wuhan 430072, Peoples R China

4.Yunnan Inst Water & Hydropower Engn Invest Design, Off Sci & Technol Adm, Kunming 650021, Yunnan, Peoples R China

5.Yunnan Acad Agr Sci, Inst Trop Ecoagr Sci, Kunming 650000, Yunnan, Peoples R China

6.Water Divers Engn Construct Adm Cent Yunnan, Kunming Branch, Kunming 650000, Yunnan, Peoples R China

关键词： agroforestry; water balance; evapotranspiration; rubber plantation; soil moisture; Hydrus-1D model; Xishuangbanna

期刊名称：WATER （ 影响因子：3.53； 五年影响因子：3.628 ）

ISSN：

年卷期： 2022 年 14 卷 3 期

页码：

收录情况： SCI

摘要： Soil water content (SWC) plays a vital role in the process of evapotranspiration (ET) in rubber plantations. To investigate the influence of the ET process on soil water balance in rubber plantations, we measured SWC at depths of 10, 20, 30, 40, 70, 100, 130 cm, measured the characteristics of root density distribution, and estimated the ET and deep percolation at a rubber plantation in Xishuangbanna using the Hydrus-1D model. Our results indicate the Hydrus-1D model can accurate simulate soil water dynamics in the 0-130 cm of rubber plantations with Nash-Sutcliffe Efficiency Coefficient (NSE) was 0.80-0.96, the Root Mean Squared Error (RMSE) was 0.05-0.02, and the Pearson Correlation Coefficient (R) was 0.82-0.97. Obviously, there were seasonal variation characteristics in soil moisture changes in the rubber plantations of Xishuangbanna. The soil water storage (SWS) dropped to its lowest value of 194 mm and reached its maximum value of 504 mm from the dry season to the rainy season. The simulated ET of the rubber plantation was 1166.1 mm. The large uptake and utilization of soil water by rubber plantations in the dry season affects or exacerbates seasonal drought in Xishuangbanna and leads to a shortage of regional water resources.