气候变化领域集成服务门户(CCPortal): Temporal Variations of Hydrochemical Characteristics and Their Controlling Factors in the Xiying River Basin in the Eastern Qilian Mountains, China

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DOI	10.15244/pjoes/131948
	Temporal Variations of Hydrochemical Characteristics and Their Controlling Factors in the Xiying River Basin in the Eastern Qilian Mountains, China
	Ma, Dongfeng; Zhou, Junju; Li, Qiaoqiao; Dou, Jiao; Huang, Jumei; Zhu, Guofeng; Wang, Lanying; Hu, Ke
通讯作者	Zhou, JJ (通讯作者)，Northwest Normal Univ, Coll Geog & Environm Sci, Lanzhou 730070, Peoples R China.
发表日期	2021
ISSN	1230-1485
EISSN	2083-5906
起始页码	3741
结束页码	3751
卷号	30 期号:4
英文摘要	Developing a scientific understanding of hydrochemical characteristics and their controlling factors is of great significance in protecting the quality of the water environment and maintaining ecological balance. The article presents the water chemical characteristics and their controlling factors in the Xiying River Basin (XRB) during different flood seasons from April to November, 2015. The results are as follows. The river water was found to be slightly alkaline on the whole and the dominant ions were Ca2+ and HCO3-. The hydrochemical type was Ca2+-Mg2+-HCO3-. Besides that, the ion concentrations showed great differences in different periods. From the pre-flood period (PreFP) to post-flood period (PoFP), total dissolved solids (TDS), Ca2+, Mg2+, Na+ and SO42-presented a trend of decreasing first and then increasing. TDS reached its maximum in PreFP. K+, NO3- and HCO3- presented a trend of increasing first and then decreasing, reaching a maximum in SuFP. Rock weathering is the major controlling mechanism of river hydrochemistry, of which carbonate weathering is the main source of ions, followed by silicate weathering. At the same time, factors such as precipitation, river supply sources, human activities and vegetation cover in different times all have significant influences on river hydrochemistry. The findings in this paper show that we need to adjust cultivated land areas and their space distribution scientifically, strengthen the construction of riverbank forest belts, and make full use of the effects of forest land and grassland. These measures could improve water quality effectively and guarantee water security in middle and lower reaches.
关键词	WATER GROUNDWATER QUALITY PLATEAU
英文关键词	hydrochemistry; temporal variations; rock weathering; Xiying River Basin
语种	英语
WOS研究方向	Environmental Sciences & Ecology
WOS类目	Environmental Sciences
WOS记录号	WOS:000679857100008
来源期刊	POLISH JOURNAL OF ENVIRONMENTAL STUDIES
来源机构	中国科学院西北生态环境资源研究院
文献类型	期刊论文
条目标识符	http://gcip.llas.ac.cn/handle/2XKMVOVA/254467
作者单位	[Ma, Dongfeng; Zhou, Junju; Li, Qiaoqiao; Dou, Jiao; Huang, Jumei; Zhu, Guofeng; Hu, Ke] Northwest Normal Univ, Coll Geog & Environm Sci, Lanzhou 730070, Peoples R China; [Zhu, Guofeng] Chinese Acad Sci, Northwest Inst Ecoenvironm & Resources, State Key Lab Cryosphere Sci, Lanzhou 730000, Peoples R China; [Wang, Lanying] Adm Ctr Chinas Agenda 21, Beijing 100038, Peoples R China
推荐引用方式 GB/T 7714	Ma, Dongfeng,Zhou, Junju,Li, Qiaoqiao,et al. Temporal Variations of Hydrochemical Characteristics and Their Controlling Factors in the Xiying River Basin in the Eastern Qilian Mountains, China[J]. 中国科学院西北生态环境资源研究院,2021,30(4).
APA	Ma, Dongfeng.,Zhou, Junju.,Li, Qiaoqiao.,Dou, Jiao.,Huang, Jumei.,...&Hu, Ke.(2021).Temporal Variations of Hydrochemical Characteristics and Their Controlling Factors in the Xiying River Basin in the Eastern Qilian Mountains, China.POLISH JOURNAL OF ENVIRONMENTAL STUDIES,30(4).
MLA	Ma, Dongfeng,et al."Temporal Variations of Hydrochemical Characteristics and Their Controlling Factors in the Xiying River Basin in the Eastern Qilian Mountains, China".POLISH JOURNAL OF ENVIRONMENTAL STUDIES 30.4(2021).