Vegetation coverage change and erosion types impacts on the water chemistry in western China

Liu，Xin1,2; Zhou，Zhaoqiang3; Ding，Yibo1,2,4

2021-06-10

10.1016/j.scitotenv.2021.145543

SCIENCE OF THE TOTAL ENVIRONMENT   影响因子和分区

0048-9697

1879-1026

Exploring the characteristics of water chemistry under different vegetation coverage and erosion types is important for water resource utilization and ecological environmental protection. After investigating the water chemistry of the surface water and groundwater in Xinjiang and Tibet in western China, this study revealed the response of hydrochemistry to vegetation coverage and erosion types. The results showed that different ions have different responses to the NDVI (normalized difference vegetation index). Sodium (Na) in the surface water and groundwater was negatively correlated with the NDVI, while magnesium (Mg) and bicarbonate (HCO) experienced no significant changes with vegetation. Moreover, potassium (K) in the surface water was positively correlated with vegetation, while that in the groundwater was negatively correlated with vegetation. Furthermore, calcium (Ca) and nitrate (NO) in the surface water were negatively correlated with the NDVI, but the groundwater experienced no evident change. In addition, chlorine (Cl) and sulfate (SO) in the groundwater were negatively correlated with the NDVI, but these indexes in the surface water had no evident variation trend. In addition, different erosion types have different effects on hydrochemistry. Assuming the same amount of erosion occurs, wind erosion has the greatest effect on hydrochemistry, followed by hydraulic erosion, and freeze-thaw erosion has the least effect. The results of this study can help improve our knowledge of water evolution and the relationship between hydrochemistry and vegetation coverage and erosion types, promote effective management of water resources and provide a new direction for water research.

Cluster analysis Erosion types Hydrochemistry NDVI Xinjiang and Tibet

SCI ; EI

英语

通讯

WOS:000628753700129

20210709912506

Erosion ; Groundwater ; Groundwater geochemistry ; Hydrochemistry ; Sulfur compounds ; Vegetation ; Water management

Surface Water:444.1 ; Groundwater:444.2 ; Geochemistry:481.2

ENVIRONMENT/ECOLOGY

2-s2.0-85100634850

Scopus

1.Key Laboratory of Agricultural Soil and Water Engineering in Arid and Semiarid Areas,Ministry of Education,Northwest A&F University,Yangling,712100,China
2.College of Water Resources and Architectural Engineering,Northwest A&F University,Yangling,712100,China
3.State Environmental Protection Key Laboratory of Integrated Surface Water-Groundwater Pollution Control,School of Environmental Science and Engineering,Southern University of Science and Technology,Shenzhen,China
4.Yellow River Engineering Consulting Co.,Ltd.,Zhengzhou,450003,China

Liu，Xin,Zhou，Zhaoqiang,Ding，Yibo. Vegetation coverage change and erosion types impacts on the water chemistry in western China[J]. SCIENCE OF THE TOTAL ENVIRONMENT,2021,772.

Liu，Xin,Zhou，Zhaoqiang,&Ding，Yibo.(2021).Vegetation coverage change and erosion types impacts on the water chemistry in western China.SCIENCE OF THE TOTAL ENVIRONMENT,772.

Liu，Xin,et al."Vegetation coverage change and erosion types impacts on the water chemistry in western China".SCIENCE OF THE TOTAL ENVIRONMENT 772(2021).