| 岩溶关键带微量元素运移的时空变化:以豫西鸡冠洞为例 |
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| 引用本文： | 梁沙,杨琰,张娜,孙喆,张萍,田宁,凌新有,任小敏.岩溶关键带微量元素运移的时空变化:以豫西鸡冠洞为例[J].环境科学,2017,38(10):4130-4140. |
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| 作者姓名： | 梁沙 杨琰 张娜 孙喆 张萍 田宁 凌新有 任小敏 |
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| 作者单位： | 西南大学地理科学学院, 岩溶环境重庆市重点实验室, 重庆 400715;国土资源部岩溶生态环境-重庆南川野外基地, 重庆 408435,西南大学地理科学学院, 岩溶环境重庆市重点实验室, 重庆 400715;国土资源部岩溶生态环境-重庆南川野外基地, 重庆 408435,西南大学地理科学学院, 岩溶环境重庆市重点实验室, 重庆 400715;国土资源部岩溶生态环境-重庆南川野外基地, 重庆 408435,西南大学地理科学学院, 岩溶环境重庆市重点实验室, 重庆 400715;国土资源部岩溶生态环境-重庆南川野外基地, 重庆 408435,西南大学地理科学学院, 岩溶环境重庆市重点实验室, 重庆 400715;国土资源部岩溶生态环境-重庆南川野外基地, 重庆 408435,西南大学地理科学学院, 岩溶环境重庆市重点实验室, 重庆 400715;国土资源部岩溶生态环境-重庆南川野外基地, 重庆 408435,河南省鸡冠洞风景名胜区管理处, 栾川 471500,河南省鸡冠洞风景名胜区管理处, 栾川 471500 |
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| 基金项目： | 国家自然科学基金项目（41672160，41372177，40902053）；国家重点研发计划项目（2016YFC050230205） |
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| 摘 要： | 为探索岩溶关键带元素运移时空变化特征及过程,自2009年10月至2015年5月对我国北方典型岩溶关键带——河南西部鸡冠洞相互作用带中各组分(大气降水、土壤、基岩、洞穴滴水、洞穴现代沉积物)进行了连续定点监测及取样分析,共获得650个实验数据.对比了Ca、Mg、Ba、Sr、δ~(13)C及元素比值在不同组分中的变化情况及运移规律.结果表明:(1)土壤与基岩是滴水的主要物质来源,Mg、Ba、Sr符合"土壤-基岩"二元物源模型,但各自所占比例并不相同.(2)在空间上,洞穴系统相互作用带中各元素迁移相互联系.滴水继承了土壤及基岩的信号,现代沉积物又能延续滴水各元素的信息.元素在土壤纵剖面中表现出了明显的淋溶和淀积作用,最下层土壤较好地继承了基岩中微量元素的信息.(3)在时间上,洞穴系统相互作用带中各元素迁移复杂多变.土壤及滴水受降水淋滤作用影响皆表现明显的季节差异,然在岩溶水运移路径、PCP作用、极端干旱和年降水雨型的影响下,滴水元素浓度旱、雨季差异明显较土壤小.而PCP作用及元素选择性淋滤等因素又改变了沉积物中元素对滴水元素的延续特性.
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| 关 键 词： | 岩溶关键带 微量元素 物质来源 时空变化 鸡冠洞 |
| 收稿时间： | 2017/3/16 0:00:00 |
| 修稿时间： | 2017/5/9 0:00:00 |
Analysis of Temporal and Spatial Variations in Trace Element Migration in Karst Critical Zone:An Example of Jiguan Cave, Henan |
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| LIANG Sh,YANG Yan,ZHANG N,SUN Zhe,ZHANG Ping,TIAN Ning,LING Xin-you and REN Xiao-min.Analysis of Temporal and Spatial Variations in Trace Element Migration in Karst Critical Zone:An Example of Jiguan Cave, Henan[J].Chinese Journal of Environmental Science,2017,38(10):4130-4140. |
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| Authors: | LIANG Sh YANG Yan ZHANG N SUN Zhe ZHANG Ping TIAN Ning LING Xin-you and REN Xiao-min |
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| Institution: | Chongqing Key Laboratory of Karst Environment, School of Geographical Sciences, Southwest University, Chongqing, 400715, China;Field Scientific Observation & Research Base of Karst Eco-environments at Nanchuan in Chongqing, Ministry of Land and Resources of China, Chongqing 408435, China,Chongqing Key Laboratory of Karst Environment, School of Geographical Sciences, Southwest University, Chongqing, 400715, China;Field Scientific Observation & Research Base of Karst Eco-environments at Nanchuan in Chongqing, Ministry of Land and Resources of China, Chongqing 408435, China,Chongqing Key Laboratory of Karst Environment, School of Geographical Sciences, Southwest University, Chongqing, 400715, China;Field Scientific Observation & Research Base of Karst Eco-environments at Nanchuan in Chongqing, Ministry of Land and Resources of China, Chongqing 408435, China,Chongqing Key Laboratory of Karst Environment, School of Geographical Sciences, Southwest University, Chongqing, 400715, China;Field Scientific Observation & Research Base of Karst Eco-environments at Nanchuan in Chongqing, Ministry of Land and Resources of China, Chongqing 408435, China,Chongqing Key Laboratory of Karst Environment, School of Geographical Sciences, Southwest University, Chongqing, 400715, China;Field Scientific Observation & Research Base of Karst Eco-environments at Nanchuan in Chongqing, Ministry of Land and Resources of China, Chongqing 408435, China,Chongqing Key Laboratory of Karst Environment, School of Geographical Sciences, Southwest University, Chongqing, 400715, China;Field Scientific Observation & Research Base of Karst Eco-environments at Nanchuan in Chongqing, Ministry of Land and Resources of China, Chongqing 408435, China,Administrative Office of Luoyang Jiguan Cave, Luanchuan 471500, China and Administrative Office of Luoyang Jiguan Cave, Luanchuan 471500, China |
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| Abstract: | |
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| Keywords: | karst critical zone trace element sources in drip water spatial-temporal variations Jiguan Cave |
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