Next Article in Journal
Inorganic Nitrogen Production and Removal along the Sediment Gradient of a Stormwater Infiltration Basin
Next Article in Special Issue
Spatial Pattern Analysis of a Water-Related Ecosystem Service and Evaluation of the Grassland-Carrying Capacity of the Heihe River Basin under Land Use Change
Previous Article in Journal
Hydrologic Analysis of an Intensively Irrigated Area in Southern Peru Using a Crop-Field Scale Framework
Article

Effects of Vegetation Restoration on Regional Soil Moisture Content in the Humid Karst Areas—A Case Study of Southwest China

1
School of Geography and Environmental Science, Guizhou Normal University, Guiyang 550001, China
2
Ministry of Ecology and Environment Center for Satellite Application on Ecology and Environment, Beijing 100094, China
3
International Environmental Cooperation Center, Beijing 100035, China
*
Author to whom correspondence should be addressed.
Academic Editor: Junyu Qi
Water 2021, 13(3), 321; https://doi.org/10.3390/w13030321
Received: 13 December 2020 / Revised: 16 January 2021 / Accepted: 22 January 2021 / Published: 28 January 2021
(This article belongs to the Special Issue Effects of Land Use and Climate Changes on Water Resources)
Soil moisture is one of the restricting factors in the humid karst areas, which feature strong spatial heterogeneity. However, current research about the effects of vegetation restoration on soil moisture content have mainly focused on plot scale and slope scale, while these effects still remain unclear at regional scale in this area. Taking Southwest China as a case study and based on the land parameter data record (LPDR) and enhanced vegetation index (EVI) data set during 2002–2018, this study analyzed the spatiotemporal variation characteristics of vegetation and soil moisture content, and evaluated the effects of vegetation restoration on regional soil moisture content dynamics in paired years with similar precipitation conditions. The results showed that the EVI generally increased at a rate of 0.035/10a during 2002–2018, while the soil moisture was dominated by a drying trend at a variation rate of −0.0006 (cm3/cm3)/10a. The increasing trend of EVI accounted for 90.90% across the study area, whereas the decreasing trend of soil moisture accounted for 51.66%, and the increasing trend of soil moisture accounted for 48.34%. In addition, the decreasing trend of soil moisture coupled with an increasing trend of EVI distributed in most of the study area, especially in the homogenous limestone area. Our results demonstrate that there were remarkable vegetation restoration efforts in a series of ecological restoration projects, which resulted in a drying trend of the regional soil moisture content in the humid karst areas. The results suggest that it is necessary to consider reasonable vegetation planting density and suitable revegetation types to balance the relationship between vegetation water consumption and soil moisture supplementation in vegetation restoration practice in the humid karst areas. View Full-Text
Keywords: soil moisture; EVI; vegetation restoration; humid karst areas soil moisture; EVI; vegetation restoration; humid karst areas
Show Figures

Figure 1

MDPI and ACS Style

Wei, X.; Zhou, Q.; Cai, M.; Wang, Y. Effects of Vegetation Restoration on Regional Soil Moisture Content in the Humid Karst Areas—A Case Study of Southwest China. Water 2021, 13, 321. https://doi.org/10.3390/w13030321

AMA Style

Wei X, Zhou Q, Cai M, Wang Y. Effects of Vegetation Restoration on Regional Soil Moisture Content in the Humid Karst Areas—A Case Study of Southwest China. Water. 2021; 13(3):321. https://doi.org/10.3390/w13030321

Chicago/Turabian Style

Wei, Xiaocha, Qiuwen Zhou, Mingyong Cai, and Yujuan Wang. 2021. "Effects of Vegetation Restoration on Regional Soil Moisture Content in the Humid Karst Areas—A Case Study of Southwest China" Water 13, no. 3: 321. https://doi.org/10.3390/w13030321

Find Other Styles
Note that from the first issue of 2016, MDPI journals use article numbers instead of page numbers. See further details here.

Article Access Map by Country/Region

1
Back to TopTop