干旱区生态环境知识资源中心(Arid): 渭干河库车河绿洲地表水水质空间分布特征

Arid

	渭干河库车河绿洲地表水水质空间分布特征
其他题名	Spatial distribution characteristics of surface water quality in the Ugan-Kuche river oasis
	木哈代思·艾日肯 1; 买买提·沙吾提 2; 依克丽曼·阿布都米提 1; 马春玥 1
来源期刊	中国水土保持科学
ISSN	2096-2673
出版年	2019
卷号	17 期号:5 页码:93-99
中文摘要	基于2016年4月及2017年5月野外水质考察数据,结合Gibbs图、Piper三线图和地统计学方法对西北典型干旱区渭干河库车河绿洲地表水水质变化及其空间分布特征进行研究,探讨区域地表水水质状况,依期为该绿洲水资源管理与评价提供有利依据。研究结果表明: 2016年研究区灌溉水水质指标( pH、EC、TDS、Cl~-、Ca~(2+)、K~+、 Mg~(2+) )含量相对2017年较高,而SO_4~(2-) 、HCO_3~- 、Na~+含量比2016年高,结合Piper图可以初步判断水化学类型主要为Cl-SO_4-Na-Mg、Cl-SO_4-Ca-Mg、HCO_3-Cl-SO_4-Na-Ca-Mg,其水化学组成整体的自然起源主要受自身蒸发-浓缩与风化溶解作用的共同影响。地表水水质指标( EC、Ca~(2+)、Na~+、Mg~(2+)、Cl~-、SO_4~(2-) )在空间分布上基本相似,且在库车河中下游较为显著,其主要原因是研究区地势北高南低地形等自然因素及人为因素加剧盐渍化程度,使生态环境遭到破坏。
英文摘要	[Background]Water resources have become a global issue,especially in arid and semi-arid regions,where water resources are scarce and water quality is deteriorating. However,there are few studies on the spatial distribution of surface water quality in typical arid areas( Ugan-Kuche river oasis), thus the objective of this work is to study the spatial and temporal distribution characteristics of surface water quality in Ugan-Kuche river oasis. [Methods] The water quality indexes of the sampling points were taken as the research object,and the water quality variations in 2016 - 2017 were compared and analyzed by descriptive statistical methods,and the water chemical type was judged by combining the Piper diagram,the time trend of surface water chemistry characteristics were analyzed by GIS and statistical methods. [Results] 1 ) The river water quality indices such as pH, EC ( Electrical Conductivity),TDS( Total Dissolved Solids),Cl~-,Ca~(2+),K~+,and Mg~(2+) in 2016 were higher than in 2017,but SO_4~(2-),HCO_3~-,Na~+ concentration in 2017 were higher than in 2016.2) The sampled water chemistry also showed the similar spatial variations,mainly expressed as Cl-SO_4-Na-Mg、Cl-SO_4-Ca-Mg and HCO_3-Cl-SO_4-Na-Ca-Mg. The dominant mechanism of natural control of surface water chemical sources was the evaporation concentration type. 3) The river water quality indices such as EC,Ca~(2+), Na~+,Mg~(2+),Cl~-,and SO_4~(2-) showed a similar stripped distribution pattern. The value of each parameter showed an increasing trend in the upstream to downstream process. [Conclusions] From the spatial scale,the main reason for the surface water quality in the middle and lower reaches of Kuche River is that the natural factors such as the terrain of north high and south low of the study area and the human factors exacerbate the degree of salinization,which destroys the ecological environment. From the time scale, the water-salt stress is becoming more and more significant due to the lack of water and soil resources and the unreasonable use of human and soil resources in Ugan-Kuche river oasis.
中文关键词	水质变化 ; 地统计学 ; Piper图 ; 空间分布
英文关键词	variation of water quality geo-statistical analysis Piper diagram spatial distribution
语种	中文
收录类别	CSCD
WOS类目	GEOGRAPHY
WOS研究方向	Geography
CSCD记录号	CSCD:6610224
来源机构	新疆大学
资源类型	期刊论文
条目标识符	http://119.78.100.177/qdio/handle/2XILL650/316336
作者单位	1.新疆大学,资源与环境科学学院, 智慧城市与环境建模普通高校重点实验室, 乌鲁木齐, 新疆 830046, 中国; 2.新疆大学,资源与环境科学学院;;新疆大学, 智慧城市与环境建模普通高校重点实验室;;绿洲生态教育部重点实验室, 乌鲁木齐;;乌鲁木齐, ;; 830046;;830046
推荐引用方式 GB/T 7714	木哈代思·艾日肯,买买提·沙吾提,依克丽曼·阿布都米提,等. 渭干河库车河绿洲地表水水质空间分布特征[J]. 新疆大学,2019,17(5):93-99.
APA	木哈代思·艾日肯,买买提·沙吾提,依克丽曼·阿布都米提,&马春玥.(2019).渭干河库车河绿洲地表水水质空间分布特征.中国水土保持科学,17(5),93-99.
MLA	木哈代思·艾日肯,et al."渭干河库车河绿洲地表水水质空间分布特征".中国水土保持科学 17.5(2019):93-99.