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10.3390/w14030295
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Article

Estimation of Applicability of Soil Model for Rubber (Hevea brasiliensis) Plantations in Xishuangbanna, Southwest China

by
Zhen Ling
1,2,3,
Zhengtao Shi
2,*,
Shixiang Gu
3,4,
Guangxiong He
5,
Xinyou Liu
6,
Tao Wang
1,
Weiwei Zhu
1 and
Li Gao
1
1
Department of Architecture Engineering, Kunming University, Kunming 650214, China
2
Faculty of Geography, Yunnan Normal University, Kunming 650500, China
3
State Key Laboratory of Water Resources and Hydropower Engineering Science, Wuhan University, Wuhan 430072, China
4
Office of Science and Technology Administration, Yunnan Institute of Water & Hydropower Engineering Investigation, Design and Research, Kunming 650021, China
5
Institute of Tropical Eco-Agriculture Science, Yunnan Academy of Agriculture Science, Kunming 650000, China
6
Kunming Branch, Water Diversion Engineering Construction Administration for Central Yunnan, Kunming 650000, China
*
Author to whom correspondence should be addressed.
Water 2022, 14(3), 295; https://doi.org/10.3390/w14030295
Submission received: 10 November 2021 / Revised: 12 January 2022 / Accepted: 13 January 2022 / Published: 19 January 2022
(This article belongs to the Section Hydrology)
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Abstract

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

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MDPI and ACS Style

Ling, Z.; Shi, Z.; Gu, S.; He, G.; Liu, X.; Wang, T.; Zhu, W.; Gao, L. Estimation of Applicability of Soil Model for Rubber (Hevea brasiliensis) Plantations in Xishuangbanna, Southwest China. Water 2022, 14, 295. https://doi.org/10.3390/w14030295

AMA Style

Ling Z, Shi Z, Gu S, He G, Liu X, Wang T, Zhu W, Gao L. Estimation of Applicability of Soil Model for Rubber (Hevea brasiliensis) Plantations in Xishuangbanna, Southwest China. Water. 2022; 14(3):295. https://doi.org/10.3390/w14030295

Chicago/Turabian Style

Ling, Zhen, Zhengtao Shi, Shixiang Gu, Guangxiong He, Xinyou Liu, Tao Wang, Weiwei Zhu, and Li Gao. 2022. "Estimation of Applicability of Soil Model for Rubber (Hevea brasiliensis) Plantations in Xishuangbanna, Southwest China" Water 14, no. 3: 295. https://doi.org/10.3390/w14030295

APA Style

Ling, Z., Shi, Z., Gu, S., He, G., Liu, X., Wang, T., Zhu, W., & Gao, L. (2022). Estimation of Applicability of Soil Model for Rubber (Hevea brasiliensis) Plantations in Xishuangbanna, Southwest China. Water, 14(3), 295. https://doi.org/10.3390/w14030295

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