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Quantifying the effects of climate and vegetation on soil moisture in an arid area, China

(2019) WATER. 11(4).
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Abstract
Soil moisture plays a critical role in land-atmosphere interactions. Quantifying the controls on soil moisture is highly valuable for effective management of water resources and climatic adaptation. In this study, we quantified the effects of precipitation, temperature, and vegetation on monthly soil moisture variability in an arid area, China. A non-linear Granger causality framework was applied to examine the causal effects based on multi-decadal reanalysis data records. Results indicate that precipitation had effects on soil moisture in about 91% of the study area and explained up to 40% of soil moisture variability during 1982-2015. Temperature and vegetation explained up to 8.2% and 3.3% of soil moisture variability, respectively. Climatic extremes were responsible for up to 10% of soil moisture variability, and the importance of climatic extremes was low compared to that of the general climate dynamics. The time-lagged analysis shows that the effects of precipitation and temperature on soil moisture were immediate and dissipated shortly. In addition, the effects of precipitation on soil moisture decreased with the increase of precipitation, soil moisture, and elevation. This study provides deep insight for uncovering the drivers of soil moisture variability in arid regions.
Keywords
soil moisture, precipitation, temperature, vegetation, non-linear Granger causality, GRANGER-CAUSALITY, TREND ANALYSIS, LAND-USE, PRECIPITATION, VARIABILITY, TEMPERATURE, DYNAMICS, IMPACTS, NDVI, SIMULATIONS

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MLA
Wang, Yunqian et al. “Quantifying the Effects of Climate and Vegetation on Soil Moisture in an Arid Area, China.” WATER 11.4 (2019): n. pag. Print.
APA
Wang, Yunqian, Yang, J., Chen, Y., Fang, G., Duan, W., Li, Y., & De Maeyer, P. (2019). Quantifying the effects of climate and vegetation on soil moisture in an arid area, China. WATER, 11(4).
Chicago author-date
Wang, Yunqian, Jing Yang, Yaning Chen, Gonghuan Fang, Weili Duan, Yupeng Li, and Philippe De Maeyer. 2019. “Quantifying the Effects of Climate and Vegetation on Soil Moisture in an Arid Area, China.” Water 11 (4).
Chicago author-date (all authors)
Wang, Yunqian, Jing Yang, Yaning Chen, Gonghuan Fang, Weili Duan, Yupeng Li, and Philippe De Maeyer. 2019. “Quantifying the Effects of Climate and Vegetation on Soil Moisture in an Arid Area, China.” Water 11 (4).
Vancouver
1.
Wang Y, Yang J, Chen Y, Fang G, Duan W, Li Y, et al. Quantifying the effects of climate and vegetation on soil moisture in an arid area, China. WATER. 2019;11(4).
IEEE
[1]
Y. Wang et al., “Quantifying the effects of climate and vegetation on soil moisture in an arid area, China,” WATER, vol. 11, no. 4, 2019.
@article{8619395,
  abstract     = {Soil moisture plays a critical role in land-atmosphere interactions. Quantifying the controls on soil moisture is highly valuable for effective management of water resources and climatic adaptation. In this study, we quantified the effects of precipitation, temperature, and vegetation on monthly soil moisture variability in an arid area, China. A non-linear Granger causality framework was applied to examine the causal effects based on multi-decadal reanalysis data records. Results indicate that precipitation had effects on soil moisture in about 91% of the study area and explained up to 40% of soil moisture variability during 1982-2015. Temperature and vegetation explained up to 8.2% and 3.3% of soil moisture variability, respectively. Climatic extremes were responsible for up to 10% of soil moisture variability, and the importance of climatic extremes was low compared to that of the general climate dynamics. The time-lagged analysis shows that the effects of precipitation and temperature on soil moisture were immediate and dissipated shortly. In addition, the effects of precipitation on soil moisture decreased with the increase of precipitation, soil moisture, and elevation. This study provides deep insight for uncovering the drivers of soil moisture variability in arid regions.},
  articleno    = {767},
  author       = {Wang, Yunqian and Yang, Jing and Chen, Yaning and Fang, Gonghuan and Duan, Weili and Li, Yupeng and De Maeyer, Philippe},
  issn         = {2073-4441},
  journal      = {WATER},
  keywords     = {soil moisture,precipitation,temperature,vegetation,non-linear Granger causality,GRANGER-CAUSALITY,TREND ANALYSIS,LAND-USE,PRECIPITATION,VARIABILITY,TEMPERATURE,DYNAMICS,IMPACTS,NDVI,SIMULATIONS},
  language     = {eng},
  number       = {4},
  pages        = {16},
  title        = {Quantifying the effects of climate and vegetation on soil moisture in an arid area, China},
  url          = {http://dx.doi.org/10.3390/w11040767},
  volume       = {11},
  year         = {2019},
}

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