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The Analysis of Environmental Problems and Ecological Reclamation Engineering in the Limestone Region in Taihang Mountain in Hebei
张洪生,刘金铜,刘慧涛,徐友信,李志祥,高树红,于淑会
Chinese Agricultural Science Bulletin . 2009, (3): 236 -239 .  DOI: 10.11924/j.issn.1000-6850.2008-1326