干旱区生态环境知识资源中心(Arid): 川东槽谷区岩溶泉水物理化学动态特征及其环境效应研究以重庆青木关岩溶槽谷姜家泉为例

Arid

	川东槽谷区岩溶泉水物理化学动态特征及其环境效应研究以重庆青木关岩溶槽谷姜家泉为例
其他题名	Hydro-physico-chemical Variations of the Karstic Spring and Its Environmental Effects in Ridge-trough Area, Eastern Sichuan-A Case Study on Jiangjia Spring in Qingmuguan Karst Valley, Chongqing
	扈志勇 1; 杨平恒 1; 杨梅 1; 罗鉴银 2; 李元庆 2
ISSN	1000-8527
出版年	2009
卷号	23 期号:6 页码:1167-1173
中文摘要	以重庆青木关岩溶槽谷姜家泉野外观测试验基地为例,利用CTDP300多参数水质自动记录仪、NITRATAX plus sc在线硝氮分析仪及HOBO小型气象站,分别对岩溶泉在不同降雨条件下水化学的动态变化特征进行了监测研究.结果表明:岩溶泉水pH值受偏酸性雨水的影响而降低;水温变化取决于降雨量、持续时间及气温等因素影响.分析认为,电导率的变化随环境的不同而不同,一般降雨环境下雨水的稀释作用仅表现在降雨的开始阶段,之后裂隙含水介质起主要作用;暴雨环境下雨水的稀释作用贯穿整个降雨过程,地下河水质主要受岩溶管道裂隙控制,水动力作用占主要地位.NO_3~-含量与电导率变化呈正相关,都与降雨量密切相关,从而说明降雨是导致岩溶区土壤元素流失的主要原因,也是造成岩溶山区地下水污染的重要原因.岩溶泉水化学动态变化的监测研究对于解决岩溶石山区居民的饮水、水土保持及石漠化治理具有重要意义.
英文摘要	The groundwater is always polluted to some extent by pesticides and fertilizers. There are few researches on monitoring of groundwater in karst areas at present. This paper presents a case study on the Jiangjia spring in Qingmuguan karst valley experimental site,Chongqing, China. Rainfall and physico-chemical variations of groundwater are monitored by the HOBO weather station. The CTDP300 multi-parameter auto-recordable instrument and NITRATAX plus sc online NO_3~--N analyzer are employed in different rainfall conditions at Qingmuguan karst valley. The results show that the karst dynamic system is very sensitive to the environment and responds promptly. The springs pH value decrease, as it is diluted by the acid rain. The water temperature changes owing to rainfall, duration, and air temperature. Electrical conductivity changes with rainfall environment. The dilution function of the rainwater mainly occurres in the initial stage under normal rainfall environment and the crevasse watery medium plays a key role in the next stage.The chemical characteristics of water seepage is mainly controlled by the rainwater under rainstorm environment and the pipeline watery medium plays a key role. Positive correlation exists between NO_3~- and electrical conductivity,and both of them are significantly correlated to the amount of rainfall. It indicates that the rainfall is a very important factor to contaminated groundwater, and can also result in the missing of the soil and nutrition element.The research of the underground river is important in solving residents potable water, conserving groundwater and preventing the soil from desertification.
中文关键词	岩溶泉 ; 水文物理化学 ; 环境效应 ; 槽谷区 ; 川东
英文关键词	karst spring hydro-physico-chemistry environmental effect ridge-trough area east Sichuan
语种	中文
国家	中国
收录类别	CSCD
WOS类目	MINERALOGY
WOS研究方向	Mineralogy
CSCD记录号	CSCD:3789442
资源类型	期刊论文
条目标识符	http://119.78.100.177/qdio/handle/2XILL650/224357
作者单位	1.西南大学,地理科学学院, 重庆 400715, 中国; 2.西南大学地理科学学院, 重庆 400715, 中国
推荐引用方式 GB/T 7714	扈志勇,杨平恒,杨梅,等. 川东槽谷区岩溶泉水物理化学动态特征及其环境效应研究以重庆青木关岩溶槽谷姜家泉为例[J],2009,23(6):1167-1173.
APA	扈志勇,杨平恒,杨梅,罗鉴银,&李元庆.(2009).川东槽谷区岩溶泉水物理化学动态特征及其环境效应研究以重庆青木关岩溶槽谷姜家泉为例.,23(6),1167-1173.
MLA	扈志勇,et al."川东槽谷区岩溶泉水物理化学动态特征及其环境效应研究以重庆青木关岩溶槽谷姜家泉为例".23.6(2009):1167-1173.