水土保持研究2017，Vol.24Issue(4)：355-361,7.
织金洞土壤渗透水—洞穴滴水元素的时空变化特征
Spatiotemporal Variation Characteristics and Environmental Significance of Soil Water Infiltration and Elements in Water Drip in Zhijin Cave
摘要
Abstract
The chemical characteristics of the karst spring water,soil water seepage and cave drip water in Zhijin cave were systematically monitored and analyzed.The results showed that in the karst system of Zhijin cave,the change range of soil water,karst spring water and cave drip water element in one year varied,and the main elements presented the obvious seasonal variation characteristics;in the three types of water,the average concentration of Ca2+ decreased in the sequence:cave drip water＞cave spring＞soil infiltrating water,the average concentrations of Sr2+,Mg2+ decreased in the order:cave drip water＞soil infiltration water＞cave spring water,indicating that the changes in all the elements in the karst system may be the result of a variety of other factors;the change of Mg/Ca and Sr/Ca ratios and their correlation reflected the consistent effects of the source,water rock interaction time,and preferentially deposited calcite,therefore this ratio can reflect the change of wet and dry weather outside;the water-soil,water-rock interaction processes in the cave controlled the change of the chemical composition of the drip water.The migration path,the time and the environmental condition of the drip point had different responses to the precipitation.Therefore,when speleothem element geochemical characteristics are used to reflect the changes in the cave environment,it is necessary to comprehensively consider the elements in the water-soil-rock distribution and migration characteristics and their relationships with environmental factors.关键词
土壤渗透水/洞穴滴水/元素/织金洞Key words
soil water infiltration/cave drip/element/Zhijin Cave分类
天文与地球科学引用本文复制引用
张结,周忠发,潘艳喜,曹明达,张绍云,张强..织金洞土壤渗透水—洞穴滴水元素的时空变化特征[J].水土保持研究,2017,24(4):355-361,7.基金项目
国家自然科学基金地区项目(41361081) （41361081）
贵州省科技计划(黔科合G字[2014]4004-2号) （黔科合G字[2014]4004-2号）
贵州省重大应用基础研究项目(黔科合JZ字[2014]200201) （黔科合JZ字[2014]200201）
