Abstract
Lancang-Mekong River Basin is one of ecoregions with rich biodiversity and high ecological values in the world. The basin has been strongly affected by human activities, particularly by dam construction. This study was conducted to investigate the vegetation distribution patterns in the dam areas along middle-low reach of the Lancang-Mekong River in Yunnan Province of China, where eight cascade dams have been planned or are being constructed. To identify the vegetation composition and structure, we sampled 126 quadrats along the transects arrayed vertically to both side of river channel from the year of 2004 to 2010. We found that the forest, shrub and grass communities were widely spread along the riverside. In low reach watershed of the Lancang-Mekong River, the dominated vegetations were grasses and shrubs which were severely disturbed by human activity. In middle reach of the Lancang-Mekong River, the dry-hot valley vegetation was found in the low valley. At high altitude, the pine forest and semi-evergreen seasonal forest were found. As a result of dam construction and operation, the structure and compositions of riparian vegetation were strongly changed. Some plants declined or disappeared due to the alteration of their habitats. The protection or restoration interventions are urgently needed to mitigate the risk of vegetation damage associated with dam projects along middle and low reach of the Lancang-Mekong River.
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Shikui Dong is a Full Professor at School of Environment, Beijing Normal University, China, and an Adjunct Professor in Department of Natural Resources at Cornell University, USA, as well as a Research Fellow at India China Institute of New School, USA. Currently, he is also serving as Editorial Member for four peer-review international journals. He has about ten years of experience in academic research and teaching. His research areas focus on alpine ecosystem restoration, highland resources management and sustainable development and coupled human-natural systems in environmental protection. He published over 100 publications, of which about 5 books.
Jinpeng Li is a Ph.D. candidate in the Environmental Ecology at School of Environment, Beijing Normal University, China. He received his B.S. and M.S. degrees in Environmental Science at Shanxi University, China in 2005 and 2008, respectively. In preparation of his Ph.D. thesis, he is currently working as a Research Assistant at Ecological Risk Assessment Program of Environmental School, Beijing Normal University. His research interest is ecological planning and ecological risk assessment of hydropower plants in Southwest China. He has published three scientific papers on vegetation ordination and classification.
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Li, J., Dong, S., Peng, M. et al. Vegetation distribution pattern in the dam areas along middle-low reach of Lancang-Mekong River in Yunnan Province, China. Front. Earth Sci. 6, 283–290 (2012). https://doi.org/10.1007/s11707-012-0296-0
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DOI: https://doi.org/10.1007/s11707-012-0296-0