Water Sources and Factors Controlling Hydro-chemical Compositions in the Yiluo River Basin

被引：4

作者：

Liu S.-T. ^{[1
]}

Zhang D. ^{[1
]}

Li Y.-H. ^{[1
]}

Yang J.-M. ^{[1
]}

Zou S. ^{[1
]}

Wang Y.-T. ^{[1
]}

Huang X.-Y. ^{[1
]}

Zhang Z.-Y. ^{[2
]}

Yang W. ^{[1
]}

Jia B.-J. ^{[1
]}

机构：

[1] School of Resources and Environment, Henan Polytechnic University, Jiaozuo

[2] Jiangxi Province Key Laboratory of the Causes and Control of Atmospheric Pollution, East China University of Technology, Nanchang

来源：

Huanjing Kexue/Environmental Science | 2020年 / 41卷 / 03期

关键词：

Anthropogenic input; Controlling factors; Hydro-chemical compositions; Temporal and spatial variations; Yiluo River Basin;

D O I：

10.13227/j.hjkx.201908116

中图分类号：

学科分类号：

摘要：

An important tributary in the middle stream of the Yellow River, the Yiluo River consists of the Luohe River and Yihe River, which converge at Yanshi City. Mining activities were widely distributed in the upstream of the Yiluo River Basin (YRB), while residential areas concentrated in the downstream were coupled with extensively industrial and agricultural activities. To illustrate the influences of variable anthropogenic activities on the hydro-chemical composition of river water of the YRB, water samples from the main stream and tributaries were collected in the flood season (August) and normal season (December), respectively. The hydrogen and oxygen isotope values coupled with cation and anion content were analyzed. Temporal and spatial variations of hydrogen and oxygen isotopes and ion content were utilized to elucidate the sources and factors controlling the hydro-chemical composition of the river water, and to illustrate the pathways of human effects. The results demonstrated that: ① Average hydrogen and oxygen isotope values (δD and δ18O) of Luo River water were -56‰ and -7.9‰, and -55‰ and -8.1‰ in the flood season and normal season, respectively. Mean δD and δ18O values of Yi River water were -49‰ and -6.9‰, and -53‰ and -7.8‰ in the flood season and normal season, respectively. These temporal variations indicated that river water was mainly recharged by local atmospheric precipitation. ② The dominant water hydro-chemical type was HCO3-SO4-Ca-Mg in the main stream of the YRB, and the ratios of Ca2+ and HCO3 - molar equivalent concentrations in the flood season were lower than those in the normal season, while the ratios of SO4 2- molar equivalent concentrations were higher than those in the normal season, indicating more sulfate dissolved in the river water in the flood season. ③ Carbonic acid and sulfuric acid simultaneously reacted with carbonate and silicate rocks, and in the Luo River more carbonate rocks were weathered, while in the Yi River more silicate rocks were weathered. ④ Human effects on river water were mainly concentrated in the upstream where wastewater input was derived from mining activities, while in the downstream pollution of the river was due to industrial wastewater and sewage input. ⑤ Spatial variations of sulfate sulfur isotope values were mostly due to differences between anthropogenic activities in the upstream and downstream of the Yiluo River. Negative sulfur isotope values in the upstream river water confirmed dissolved sulfate from sulfide mineral oxidation, which also indirectly verified the rock chemical weathering by sulfuric acid in this area. Positive sulfur isotope values in downstream river water were connected with industrial wastewater and sewage. © 2020, Science Press. All right reserved.

引用

页码：1184 / 1196

页数：12

共 56 条

[1] He J.Y., Zhang D., Zhao Z.Q., Spatial and temporal variations in hydrochemical composition of river water in Yellow River Basin, China, Chinese Journal of Ecology, 36, 5, pp. 1390-1401, (2017)
[2] Burke A., Present T.M., Paris G., Et al., Sulfur isotopes in rivers: Insights into global weathering budgets, pyrite oxidation, and the modern sulfur cycle, Earth and Planetary Science Letters, 496, pp. 168-177, (2018)
[3] Liu C.Q., Wang F.S., Wang Y.C., Et al., Responses of aquatic environment to river damming-from the geochemical view, Resources and Environment in the Yangtze Basin, 18, 4, pp. 384-396, (2009)
[4] Liu C.Q., Jiang Y.K., Tao F.X., Et al., Chemical weathering of carbonate rocks by sulfuric acid and the carbon cycling in Southwest China, Geochimica, 37, 4, pp. 404-414, (2008)
[5] Gaillardet J., Dupre B., Louvat P., Et al., Global silicate weathering and CO<sub>2</sub> consumption rates deduced from the chemistry of large rivers, Chemical Geology, 159, 1-4, pp. 3-30, (1999)
[6] Chen J.S., Wang F.Y., Meybeck M., Et al., Spatial and temporal analysis of water chemistry records (1958-2000) in the Huanghe (Yellow River) basin, Global Biogeochemical Cycles, 19, 3, (2005)
[7] Ding T.P., Gao J.F., Tian S.H., Et al., Chemical and isotopic characters of the water and suspended particulate materials in the Yellow River and their geological and environmental implications, Acta Geologica Sinica (English Edition), 90, 1, pp. 285-351, (2016)
[8] Gou L.F., Jin Z.D., Pogge Von Strandmann P.A.E., Et al., Li isotopes in the middle Yellow River: seasonal variability, sources and fractionation, Geochimica et Cosmochimica Acta, 248, pp. 88-108, (2019)
[9] Li S.L., Xia X.H., Zhou B., Et al., Chemical balance of the Yellow River source region, the northeastern Qinghai-Tibetan Plateau: insights about critical zone reactivity, Applied Geochemistry, 90, pp. 1-12, (2018)
[10] Wu L.L., Huh Y., Qin J.H., Et al., Chemical weathering in the Upper Huang He (Yellow River) draining the eastern Qinghai-Tibet Plateau, Geochimica et Cosmochimica Acta, 69, 22, pp. 5279-5294, (2005)

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