Impact of seasonal water-level fluctuations on autumn vegetation in Poyang Lake wetland,China
在波伊昂·莱克沼泽地的秋天植被上的季节的水级的变化的影响，中国作者机构：Key Laboratory of Watershed Geographic SciencesNanjing Institute of Geography and LimnologyChinese Academy of SciencesNanjing 21000& China University of Chinese Academy of SciencesBeijing 100049China Jiangsu Second Normal UniversityNanjing 210013China
出 版 物：《Frontiers of Earth Science》 (地球科学前沿（英文版）)
年 卷 期：2019年第13卷第2期
页 面：398-409页
核心收录：
学科分类：07[理学]
基 金：the National Key Research and Development Project of China (No.2016YFC0402204) the National Natural Science Foundation of China (Grant No.41571107) the Key Research Program of the Chinese Academy of Sciences (No.KFZD-SW-318) the Key Project of Water Resources Department of Jiangxi Province (No.KT201503)
主 题：wetland reeds sedges seasonal water-level fluctuations classification and regression tree model
摘 要：Water level fluctuations (WLF) are natural patterns that are necessary for the survival of various plants,and WLF guarantee both the productivity and the biodiversity of ***,the underlying mechanisms of how changes in vegetation are linked to seasonal WLF remain *** vegetation and hydrological data from 1989 to 2009,we identified the key seasonal fluctuations and their impacts on vegetation in the Poyang Lake wetland by utilizing a tree-based hierarchical *** to our results: 1) WLF in summer had significant impacts on both sedges and *** severe summer floods promoted the expansion of sedges,while they inhibited the expansion of reeds;2) WLF in autumn also greatly impacted sedges,while reeds were severely affected in ***,we found that low water levels in autumn led to the expansion of sedges,and low water levels in spring led to the expansion of *** results were well corroborated through comparisons of the vegetation distribution patterns over the last two decades (i.e.,the 1990s and 2000s),which may shed light on corresponding water resource and wetland management.
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