干旱区生态环境知识资源中心(Arid): 额济纳三角洲浅层地下水化学特征及其影响因素

Arid

	额济纳三角洲浅层地下水化学特征及其影响因素
其他题名	Shallow Groundwater Chemistry Characteristics and Their Controlling Factors in the Ejina Delta
	王丹丹; 于静洁; 王平; 朱秉启
来源期刊	南水北调与水利科技
ISSN	1672-1683
出版年	2013
卷号	11 期号:4 页码:51-55,66
中文摘要	以额济纳三角洲2011年生态输水期间(4月)和生态输水间歇期(8月)两次巡测水样的水化学数据为基础,运用Kriging插值、Piper图等方法,综合分析单次生态输水情况下额济纳三角洲河岸带、戈壁带和农田绿洲区浅层地下水化学特征变化及其主要影响因素。结果表明:与4月相比,8月研究区浅层地下水化学类型未发生明显改变,但TDS(总溶解固体)(2 211.7~2 974.3mg/L)、总硬度(251.5~357.3 mg/L)以及各主要离子含量显著增加,空间变异系数增大(112.6~157.5);空间上,地下水化学表现出明显的变化特征,沿地下水径流方向,地下水TDS由小于1 000 mg/L增高到大于3 000 mg/L,垂直河道方向,距河道一定距离存在TDS峰值带;额济纳三角洲浅层地下水化学特征的影响因素主要包括潜水蒸散发、生态输水和抽水灌溉等。
英文摘要	Based on hydrochemistry data of water samples collected during the ecologic water conveyance period in April and the intermission period in August, 2011 from fourteen observation wells in the Ejina Delta, the water chemistry characteristics of shallow groundwater and their controlling factors were analyzed synthetically with the influence of single ecological water conveyance in the riparian zone, gobi desert, and farmland-oasis area using the methods of Kriging interpolation and piper diagram. The results indicated that(l) the shallow groundwater hydrochemistry type did not change significantly between April and August in the Ejina Delta, but the TDS(total dissolved solids) (2 211.7 to 2974.3 mg/L), total hardness(251.5 to 357.3 mg/L), and average content of main ions increased significantly from April to August, along with considerable increasing of space variation coefficient (112.6 to 157.5); (2) shallow groundwater chemistry showed spatial variation with the increasing of TDS from less than 1 000 mg/L to more than 3000 mg/L along the direction of groundwater flow and the existence of peak strip of TDS at a certain distance from the river; and(3) the main controlling factors for the shallow groundwater chemistry in the Ejina Delta included evapotranspiration, river water filtration, and groundwater pumping and irrigation.
中文关键词	浅层地下水 ; 水化学特征 ; 干旱区 ; 额济纳三角洲
英文关键词	shallow groundwater water chemistry characteristics arid region Ejina Delta
语种	中文
国家	中国
收录类别	CSCD
WOS类目	ENVIRONMENTAL SCIENCES ; MINERALOGY
WOS研究方向	Environmental Sciences & Ecology ; Mineralogy
CSCD记录号	CSCD:4921586
来源机构	中国科学院地理科学与资源研究所
资源类型	期刊论文
条目标识符	http://119.78.100.177/qdio/handle/2XILL650/229862
作者单位	中国科学院地理科学与资源研究所, 中国科学院陆地水循环及地表过程重点实验室, 北京 100101, 中国
推荐引用方式 GB/T 7714	王丹丹,于静洁,王平,等. 额济纳三角洲浅层地下水化学特征及其影响因素[J]. 中国科学院地理科学与资源研究所,2013,11(4):51-55,66.
APA	王丹丹,于静洁,王平,&朱秉启.(2013).额济纳三角洲浅层地下水化学特征及其影响因素.南水北调与水利科技,11(4),51-55,66.
MLA	王丹丹,et al."额济纳三角洲浅层地下水化学特征及其影响因素".南水北调与水利科技 11.4(2013):51-55,66.