Hydrochemical Characteristics and Pollution Source Identification of Groundwater in Plain Area of Barkol-Yiwu Basin

被引：0

作者：

Jiang F. ^{[1
,2
,3
]}

Zhou J.-L. ^{[1
,2
,3
]}

Zhou Y.-Z. ^{[4
]}

Sun Y. ^{[1
,2
,3
]}

Han S.-B. ^{[4
]}

Lu H. ^{[1
,2
,3
]}

机构：

[1] College of Water Conservancy and Civil Engineering, Xinjiang Agricultural University, Urumqi

[2] Xinjiang Hydrology and Water Resources Engineering Research Center, Urumqi

[3] Xinjiang Key Laboratory of Hydraulic Engineering Security and Water Disasters Prevention, Urumqi

[4] Center for Hydrogeology and Environmental Geology, China Geological Survey, Baoding

来源：

Huanjing Kexue/Environmental Science | 2023年 / 44卷 / 11期

关键词：

Barkol-Yiwu Basin; genetic analysis; groundwater; hydrochemical characteristics; pollution source analysis;

D O I：

10.13227/j.hjkx.202211078

中图分类号：

学科分类号：

摘要：

Groundwater is an important water supply source for production and life in arid and semi-arid areas. This study revealed the hydrochemical characteristics of groundwater in the Barkol-Yiwu Basin of Xinjiang and analyzed the pollution sources, which is of great significance in the sustainable utilization of local groundwater. Four spring water samples, 20 unconfined groundwater samples, and 11 confined groundwater samples collected in August 2022 were analyzed using mathematical statistics, a graphic method, and the PCA-APCS-MLR model. The results showed that the chemical types of groundwater in the study area were complex and diverse. The spring water was mainly HCO3·SO4-Na·Ca type groundwater, the chemical types of unconfined groundwater were mainly HCO3·SO4-Na·Ca and HCO3·SO4-Ca, and the chemical types of confined groundwater were HCO3·SO4-Na·Ca and HCO3·Cl·SO4-Na·Ca. The hydrochemical type of confined water in unused land was single(Cl·SO4-Na·Ca), and the hydrochemical types of confined groundwater in cultivated land and urban and rural residential land were complex, indicating that groundwater was affected by human activities. The evolution process of groundwater was mainly affected by water-rock interactions and cationic exchange. The cation exchange from spring water to unconfined groundwater to confined groundwater was gradually enhanced, the weathering and dissolution of gypsum and anhydrite was gradually weakened, and the weathering and dissolution of rock salt was gradually strengthened. Leaching-enrichment(mainly the dissolution of evaporite), human activities(industrial, agricultural, and domestic pollution), and the primary geological environment were the main factors affecting groundwater in the study area.

引用

页码：6050 / 6061

页数：11