College of Resources and Environment Engineering Guizhou University Guiyang 550025 ChinaKey Laboratory of Karst Geologic Resource and Environment of the Ministry of Education Guizhou University Guiyang 550025 China;
College of Resources and Environment Engineering Guizhou University Guiyang 550025 China;
College of Resources and Environment Engineering Guizhou University Guiyang 550025 China;
College of Resources and Environment Engineering Guizhou University Guiyang 550025 China;