Abstract
In this paper, a systematic study was completed on the distribution features and origins of karst collapses in north China. There are 65 modern karst collapse areas with 1,416 karst collapse pits and 38 paleo–karst collapse areas with 3,654 paleo-collapse pillars. Modern karst collapses are mainly distributed in the plain region of the east Taihang and Yanshan Mountains and are concentrated in three zones from the west to the east in this region. The regional distribution features of karst collapses in north China are controlled by the boundary of the geological tectonics, condition of soluble rock and the extent of human activities. From the results, three-grade indices have been adopted to establish a classification scheme for karst collapse in north China. The effects of karst collapses on the environments in north China are summarized using a karst collapse classification scheme.
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Acknowledgments
The study was support by the National Natural Science Foundation of China (40672182) and National Science Foundation of Shandong Province (Y2003E01). Many thanks to Professor Du Rulin and Lecturer Wang Bin, Economic University of Shijiazhuang, China, for supplying the authors with the practical test data of karst collapses. Postgraduates, Chen Shukui, Zhang Yongping and Wang Qisheng, have completed a significant amount of work in the investigation and data analysis for this paper. The authors are indebted to them for their work on this paper.
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Keqiang, H., Dong, G., Wen, D. et al. The effects of karst collapse on the environments in north China. Environ Geol 52, 449–455 (2007). https://doi.org/10.1007/s00254-006-0478-8
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DOI: https://doi.org/10.1007/s00254-006-0478-8