| 重庆雪玉洞岩溶地下河地球化学敏感性研究 |
| |
| 引用本文： | 徐尚全,杨平恒,殷建军,毛海红,王鹏,周小萍.重庆雪玉洞岩溶地下河地球化学敏感性研究[J].环境科学,2013,34(1):77-83. |
| |
| 作者姓名： | 徐尚全 杨平恒 殷建军 毛海红 王鹏 周小萍 |
| |
| 作者单位： | 西南大学地理科学学院,三峡库区生态环境教育部重点实验室,重庆400715 |
| |
| 基金项目： | 国家自然科学基金项目(41072192, 41103068);重庆市科委院士专项(CSTS, 2010BC7004);中国地质调查局项目(1212011087119);重庆市国土房管局科技项目;西南大学博士基金项目(SWU111009) |
| |
| 摘 要： | 引用地球化学敏感指数与敏感等值线的概念,对重庆雪玉洞地下河2010年9月～2011年8月的水化学数据进行分析,发现地下河水的化学成分受上覆基岩的控制,表现出高Ca2+、低Mg2+的特征,但受季风降雨的影响,水化学在旱、雨季存在较大差异:雨季各监测点Mg2+]/Ca2+](摩尔比)为0.018～0.051,旱季Mg2+]/Ca2+]为0.038～0.064,雨季要小于旱季;HCO3-]/SO42-](摩尔比)雨季为4.86～36.62,旱季为6.23～46.67,表现出高HCO3-低SO24-的特点.岩溶作用的季节性变化使得HCO3-、Ca2+成为最敏感的阴阳离子.由于岩溶区特殊的水文地质结构,雨水、地表水、地下水转化迅速,致使地下河对农业活动较为敏感,其中以Cl-、NO3-最为突出,敏感指数分别为0.286、0.022,在保护岩溶水资源时应引起重视.旅游活动对地下河的影响较小,主要与景区良好的管理有关,应提倡相关景区向其学习管理经验.做好地下河补给区的岩溶生态系统的管理工作,可发挥岩溶区地下河最大的经济与环境效益.
|
| 关 键 词： | 地下河 地球化学 敏感性 雪玉洞 岩溶区 |
| 收稿时间： | 2012/3/22 0:00:00 |
| 修稿时间： | 5/7/2012 12:00:00 AM |
Research on the Sensitivity of Geochemical of Underground River in Chongqing Xueyu Cave |
| |
| XU Shang-quan,YANG Ping-heng,YIN Jian-jun,MAO Hai-hong,WANG Peng and ZHOU Xiao-ping.Research on the Sensitivity of Geochemical of Underground River in Chongqing Xueyu Cave[J].Chinese Journal of Environmental Science,2013,34(1):77-83. |
| |
| Authors: | XU Shang-quan YANG Ping-heng YIN Jian-jun MAO Hai-hong WANG Peng and ZHOU Xiao-ping |
| |
| Institution: | Key Laboratory of Eco-environments in Three Gorges Reservoir, Ministry of Education, School of Geographical Sciences, Southwest University, Chongqing 400715, China;Key Laboratory of Eco-environments in Three Gorges Reservoir, Ministry of Education, School of Geographical Sciences, Southwest University, Chongqing 400715, China;Key Laboratory of Eco-environments in Three Gorges Reservoir, Ministry of Education, School of Geographical Sciences, Southwest University, Chongqing 400715, China;Key Laboratory of Eco-environments in Three Gorges Reservoir, Ministry of Education, School of Geographical Sciences, Southwest University, Chongqing 400715, China;Key Laboratory of Eco-environments in Three Gorges Reservoir, Ministry of Education, School of Geographical Sciences, Southwest University, Chongqing 400715, China;Key Laboratory of Eco-environments in Three Gorges Reservoir, Ministry of Education, School of Geographical Sciences, Southwest University, Chongqing 400715, China |
| |
| Abstract: | |
| |
| Keywords: | underground river geochemistry sensitivity Xueyu Cave karst area |
| 本文献已被 CNKI 万方数据 等数据库收录！ |
| 点击此处可从《环境科学》浏览原始摘要信息 |
| 点击此处可从《环境科学》下载免费的PDF全文 |
|
