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Chen, J., Yu, J., Bai, X., Zeng, Y., & Wang, J. (2020). Fragility of karst ecosystem and environment: Long-term evidence from lake sediments. Agriculture, Ecosystems & Environment, 294, 106862. doi:10.1016/j.agee.2020.106862 
10.1016/j.agee.2020.106862
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