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

现代地质 ›› 2009, Vol. 23 ›› Issue (6): 1167-1173.

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

扈志勇^1.2, 杨平恒^1.2, 杨梅^1.2, 罗鉴银¹, 李元庆¹

1西南大学地理科学学院，重庆400715；2西南大学岩溶环境与石漠化治理研究所，重庆400715

收稿日期:2009-03-25 修回日期:2009-09-16 出版日期:2009-12-29 发布日期:2012-02-16
作者简介:扈志勇，男，硕士研究生，1981年出生，水文地质学专业，主要从事水文地质、环境地质、地下水研究。Email:hzhy1101@swu.edu.cn。
基金资助:
国家自然科学基金项目(40672165)；重庆市科委院士专项(CSTC2007BC7001)；科技部国家重点基础研究发展计划项目(2008CB41208)。

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

HU Zhi-Yong^1,2, YANG Ping-Heng^1,2, YANG Mei¹, LUO Jian-Yin¹, LI Yuan-Qing¹

1School of Geographical Sciences, Southwest University, Chongqing400715,China;
2Institute of Karst Environment and Rock Desertification Rehabilitation, Southwest University, Chongqing400715, China

Received:2009-03-25 Revised:2009-09-16 Online:2009-12-29 Published:2012-02-16

摘要/Abstract

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。

关键词: 岩溶泉, 水文物理化学, 环境效应, 槽谷区, 川东

Abstract:

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 betweenNO^-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.

Key words: karst spring, hydro-physico-chemistry, environmental effect, ridge-trough area, east Sichuan

中图分类号:

P641.134

扈志勇, 杨平恒, 杨梅, 罗鉴银, 李元庆. 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[J]. 现代地质, 2009, 23(6): 1167-1173.

HU Zhi-Yong, YANG Ping-Heng, YANG Mei, LUO Jian-Yin, LI Yuan-Qing. 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[J]. Geoscience, 2009, 23(6): 1167-1173.

[1]	王爱, 钟大康, 刘忠群, 王威, 杜红权, 周志恒, 唐自成. 川东北元坝西地区须三段钙屑致密砂岩储层成岩作用与孔隙演化[J]. 现代地质, 2020, 34(06): 1193-1204.
[2]	于冬冬 , 汤良杰 , 余一欣 , 陈茜. 川西和川东北地区差异构造演化及其对陆相层系天然气成藏的影响[J]. 现代地质, 2016, 30(5): 1085-1095.
[3]	王爱，钟大康，党录瑞，彭平，毛亚昆，任影，杨强. 川东地区震旦系灯影组储层特征及其控制因素[J]. 现代地质, 2015, 29(6): 1398-1408.
[4]	冯冲，郭彤楼，邹华耀，成晓啭. 川东北地区飞仙关组—长兴组天然气富集机制[J]. 现代地质, 2013, 27(4): 907-914.
[5]	唐洪，吴斌，张婷，曹刚，罗韧. 川东北铁山-龙会地区长兴组礁滩相储层特征及主控因素[J]. 现代地质, 2013, 27(3): 644-652.
[6]	李永生, 刘永顺, 张招崇, 聂保锋, 张东阳. 五大连池老黑山火山弹和喷发柱动力学模拟[J]. 现代地质, 2012, 26(2): 220-228.
[7]	胡望水, 曾涛, 周亚丽, 姚乾坤, 汤济广. 含滑脱层剖面的分层平衡恢复技术在川东北构造演化研究中的运用[J]. 现代地质, 2011, 25(5): 896-901.
[8]	赵文光, 郭彤楼, 蔡忠贤, 黄仁春, 杨博, 段金宝. 川东北地区二叠系长兴组生物礁类型及控制因素[J]. 现代地质, 2010, 24(5): 951-956.
[9]	杨博, 蔡忠贤, 赵文光. 川东北飞仙关组白云岩岩石结构演化[J]. 现代地质, 2010, 24(5): 945-950.
[10]	唐大卿,汪立君,曾韬,冯兴雷. 川东北宣汉—达县地区构造演化及其对油气藏的改造作用[J]. 现代地质, 2008, 22(2): 230-238.