Earth Science Frontiers ›› 2022, Vol. 29 ›› Issue (3): 37-50.DOI: 10.13745/j.esf.sf.2022.1.40

Previous Articles     Next Articles

Progress in hydrogeochemical study of Karst Critical Zone: A critical review

ZHOU Changsong1,2(), ZOU Shengzhang2,*(), FENG Qiyan1, ZHU Danni2, LI Jun3, WANG Jia2, XIE Hao2, DENG Rixin2   

  1. 1. School of Environment Science and Spatial Informatics, China University of Mining and Technology, Xuzhou 221116, China
    2. Ministry of Land and Resources Key Laboratory of Karst Dynamics, Guangxi Research Center for Karst Resources and Environmental Engineering Technology,Institute of Karst Geology, Chinese Academy of Geological Sciences, Guilin 541004, China
    3. Hebei Key Laboratory of Water Quality Engineering and Comprehensive Utilization of Water Resources, Hebei University of Architecture, Zhangjiakou 075000, China
  • Received:2021-12-15 Revised:2022-01-27 Online:2022-05-25 Published:2022-04-28
  • Contact: ZOU Shengzhang


Karst Critical Zone (KCZ) extends across lithosphere, hydrosphere, pedosphere, atmosphere and biosphere. Understanding the structure, characteristics and hydrogeochemical processes of KCZ is a key issue in the scientific research on Earth’s Critical Zone as well as karst hydrology. Based on summarization of relevant research results obtained at home and abroad, this paper analyzed the hydrogeochemical connotation, KCZ hydrodynamic vertical zoning, and hydrogeochemical processes and mechanisms under KCZ framework, and explored the law and evolutionary mechanism of hydrogeochemical process of KCZ under changing environment. Futher, this paper pointed out the shortcomings and problems in KCZ research. The current work is within the scope of traditional karst groundwater research. It does not consider the hydrogeochemical process and its coupling relationship between the plant canopy and the karst aquifer from the perspective of KCZ framework system, neither has it considered the potential impacts of epochal factors, such as introduction of new pollutants, in-depth implementation of big data methodology, and gradual changes in global carbon emission paths, on karst hydrogeochemical research. Future researches may focus on hydrogeochemical study of new pollutants based on framework; karst hydrogeochemical study based on big data system; karst hydrochemical study under the “dual-carbon strategy”; material transformation and energy transfer processes and their coupling driven by KCZ hydrogeochemistry; and integration of high-resolution monitoring, evaluation and simulation approaches in KCZ research.

Key words: Karst critical zone, hydrogeochemistry, research progress, big data, dual carbon strategy

CLC Number: