摘要
作为陆地生态系统碳循环中重要的一环,喀斯特关键带洞穴系统碳循环是不可忽视的。岩溶区地上地下二元三维结构使洞穴系统碳循环复杂且不可知,为了研究陆地生态系统碳失汇现象,对洞穴系统这一次级碳库碳循环路径及机理研究是十分必要的。该文总结了近年来洞穴系统碳循环的研究成果,包括CO2迁移和以同位素为媒介来揭示碳循环过程的经典案例研究,将洞穴系统碳循环路径分为4个部分:垂直"黑箱"的碳循环、水气交换中的碳循环、通风效应(烟囱效应)中的碳循环与其他碳源。喀斯特关键带洞穴系统碳循环研究仍存在不足之处,未来研究中应注重人类活动与洞穴系统之间碳贡献比较、洞穴上覆至洞内的碳转移转换机制的研究、碳转移过程中的量化以及碳储量计算模型的建立。
Carbon cycle of the cave system in the karst critical zone is an important link in the carbon cycle of the terrestrial ecosystem.In order to study the missing carbon in terrestrial ecosystem,it is necessary to study the carbon circulation path and mechanism of the secondary carbon reservoir in cave system.This study summarizes the research achievements of cave system carbon cycle in recent years,including CO2 migration and stable isotope which is as the medium to reveal the carbon cycle in the process of classic study.The carbon cycle path cave system is divided into four parts:the"black box"in vertical,the degas of drip waters,the ventilation effect and chimney effect and other carbon source.There are still shortcomings in the carbon cycle of cave system in karst key zone.In the future,studies should be paid attention to the comparison of carbon contribution between human activities and cave system,the study of carbon transfer conversion mechanism from overlying cave to inside cave,the quantification of carbon transfer process and the establishment of carbon storage calculation model.
作者
周忠发
石亮星
范宝祥
汤云涛
薛冰清
ZHOU Zhongfa;SHI Liangxing;FAN Baoxiang;TANG Yuntao;XUE Bingqing(Karst Institute,College of Geography and Environmental Science,Guizhou Normal University,Guiyang 550001,China;National Key Laboratory Breeding Base of Karst Mountain Ecological Environment in Guizhou Province,Guiyang 550001,China)
出处
《环境科学与技术》
CAS
CSCD
北大核心
2020年第11期200-207,共8页
Environmental Science & Technology
基金
贵州师范大学资助博士科研项目:喀斯特关键带洞穴系统碳循环机理研究(GZNUD[2017]6号)
国家自然科学基金地区项目:岩溶洞穴CO2迁移变化机制及对洞穴岩溶环境的影响研究(41361081)
贵州省高层次创新型人才培养计划—“百”层次人才(黔科合平台人才[2016]5674)。
作者简介
周忠发(1969-),男,教授,博士生导师,主要从事喀斯特资源环境、GIS与遥感研究,(电子信箱)fa6897@163.com。
