干旱区生态环境知识资源中心(Arid): 开都河流域农业灌溉区地下水化学时空分布特征研究

Arid

	开都河流域农业灌溉区地下水化学时空分布特征研究
其他题名	Spatiotemporal Changes in Hydro-chemistry of Groundwater in Irrigation District within the Kaidu River Basin
	孙从建 1; 杨伟 2; 陈若霞 2; 候慧新 2; 郑振靖 2
来源期刊	灌溉排水学报
ISSN	1672-3317
出版年	2019
卷号	38 期号:7 页码:84-93
中文摘要	【目的】研究开都河流域农业灌溉区地下水化学时空分布规律及其影响因素。【方法】采用描述性统计、空间插值、Piper三线图示法和Gibbs图示法,基于2016年1月(冬季)、3月(春季)、7月(夏季)和9月(秋季)的4次开都河流域农业灌溉区地下水样品的采集及水化学主要参数的分析测试,开展了开都河流域农业灌区地下水化学特征方面的研究。【结果】①开都河流域农业灌溉区地下水整体水质良好,矿化度较低,地下水中主要离子为HCO_3~-、Na~+、 Ca~(2+)、SO_4~(2-),溶解性固体总量(TDS)冬季高夏季低;地下水埋深与TDS变化具有一定的程度的关联性,灌溉季节地下水埋深变浅、水体TDS相对降低;②研究区地下水阳离子中Na~+和Ca~(2+)时空分布特征差异性较为明显,阴离子中SO_4~(2-)时空分布差异较为明显;③研究区地下水主要水化学类型为HCO_3~--SO_4~(2-)-Na~+-Ca~(2+)型,水化学类型季节性差异较小;④地下水离子组成主要受岩石风化作用控制,在春季、夏季和秋季的绿洲区与滨湖区的地下水化学离子组成受人为干扰较明显,灌溉力度较小的区域和非灌溉季节的地下水受人为干扰较小。【结论】灌区在农作物灌溉季节应适当合理开采地下水并加强对地下水水质的监管工作。
英文摘要	【Objective】This paper studied the spatiotemporal changes in hydro-chemical properties of groundwater in irrigation districts within the Kaidu River basin, as well as the factors that affect these changes.【Method】 Groundwater samples were taken in January, March, July and September in 2017 from the irrigation area in the Kaidu river basin. Spatiotemporal change in hydro-chemical properties of the groundwater and its impacting factors were analyzed using statistics, spatial interpolation, and Piper and Gibbs diagram.【Result】①The groundwater quality was generally good, with low TDS and being dominated by HCO- 3, Na+, Ca~(2+) and SO_2- 4. The mean TDS was high in winter and low in summer, and it was related to the depth of groundwater table. ② Na+, Ca~(2+) and SO_2- 4 varied erratically both in time and space. ③The hydro-chemical type of the groundwater in the studied area was HCO- 3-SO_2- 4-Na+-Ca~(2+), and remained almost unchanged in the four seasons. ④The rock weathering appears to affect the hydro- chemical propertied of the groundwater most. The impact of human activities was mainly in spring, summer and autumn in the oasis and lakeside region, and it was stronger in irrigation season than in nonirrigation season.【Conclusion】Our results suggest that pumping groundwater for irrigation should be rationally managed and the associated change in chemical properties of the groundwater should be monitored; this applies not only to the studied sites but also to regions on the southern slope of the Tianshan Mountain.
中文关键词	灌溉区 ; 地下水 ; 时空分布 ; 水化学类型 ; 控制因素
英文关键词	irrigation areas of the Kaidu River basin groundwater hadrochemical type temporal and spatial variation controlling factors
语种	中文
收录类别	CSCD
WOS类目	GEOGRAPHY
WOS研究方向	Geography
CSCD记录号	CSCD:6584497
资源类型	期刊论文
条目标识符	http://119.78.100.177/qdio/handle/2XILL650/316299
作者单位	1.山西师范大学地理科学学院;;中国科学院新疆生态与地理研究所, ;;荒漠与绿洲生态国家重点实验室, 临汾;;乌鲁木齐, 山西;; 041000;;830011, 中国; 2.山西师范大学地理科学学院, 临汾, 山西 041000, 中国
推荐引用方式 GB/T 7714	孙从建,杨伟,陈若霞,等. 开都河流域农业灌溉区地下水化学时空分布特征研究[J],2019,38(7):84-93.
APA	孙从建,杨伟,陈若霞,候慧新,&郑振靖.(2019).开都河流域农业灌溉区地下水化学时空分布特征研究.灌溉排水学报,38(7),84-93.
MLA	孙从建,et al."开都河流域农业灌溉区地下水化学时空分布特征研究".灌溉排水学报 38.7(2019):84-93.