中国岩溶2012,Vol.31Issue(3):316-326,11.
岩溶洞穴滴水环境监测研究进展
Research progress of monitoring for dripping water environment in karst caves
摘要
Abstract
Based on the study of the former achievement, it is concluded that the research process of monitoring for dripping water environment in karst caves mainly includes the following 5 items. (1) Although the oxyhydrogen isotope component in dripping water basically represents the isotope components in the atmospheric precipitation, variation of the oxyhydrogen isotope in dipping water is diversity, due to the differences in the thickness and fissures of the overlying rocks above the cave, that leading to the differences in time response between the dripping water and the rainfall. (2) The chemical component of the dripping water mainly affected by the interaction among water,soil,bedrock and gas, and the dissolved inorganic carbon and organic acid is also affected by the vegetation form and density. (3) The physical condition of caves is an important factor that deciding whether the oxygen and carbon stable isotopes in the speleothem by dripping water can reach the state of equilibrium fractionation or not. (4) Because there are multiple solution and uncertainty in the indicating climatic change by components of the dripping water, the cave monitor should be extended to the overlying soil and vegetation outside of the cave to form a three-dimensional monitor system. (5) Monitoring for karst cave environments still needs synthetic comparison study under different natural conditions.关键词
洞穴滴水/气候环境/水化学/碳氧同位素Key words
dripping water in caves/climatic environment/hydrochemistry/carbon and oxygen stable isotope分类
资源环境引用本文复制引用
彭玲莉,李廷勇..岩溶洞穴滴水环境监测研究进展[J].中国岩溶,2012,31(3):316-326,11.基金项目
国家自然科学基金项目(40802035、41030103、41172165),黄土与第四纪地质国家重点实验室开放基金项目(SKLLQG0907),西南大学基本科研业务费专项资金重点项目(XDJK2009B016) (40802035、41030103、41172165)