| 引用本文: | 任勃,李峰,谢永宏,陈心胜,侯志勇,李旭.洞庭湖区不同退田还湖模式下湿地植被恢复特征的比较.湖泊科学,2011,23(3):389-394. DOI:10.18307/2011.0311 |
| REN Bo,LI Feng,XIE Yonghong,CHEN Xinsheng,HOU Zhiyong,LI Xu.Comparation between the characteristic of wetland vegetations under different restoration modes after returning farmland to lake in the Lake Dongting area. J. Lake Sci.2011,23(3):389-394. DOI:10.18307/2011.0311 |
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| 洞庭湖区不同退田还湖模式下湿地植被恢复特征的比较 |
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任勃1,2,3, 李峰2,3, 谢永宏2,3, 陈心胜2,3, 侯志勇2,3, 李旭2,3
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1.湖南农业大学生物科学技术学院, 长沙 410128;2.中周科学院亚热带农业生态研究所亚热带农业生态过程院重点实验室, 长沙 410125;3.中国科学院亚热带农业生态研究所洞庭湖湿地生态系统观测研究站, 长沙 410125
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| 摘要: |
| 以2006年野外调查资料为依据,对洞庭湖区3种"双退"恢复模式(自然恢复、种植荻和种植杨树)下的植被特征进行了比较分析.结果表明,自然恢复模式下的物种数最为丰富,达79种,而种植荻模式下的物种数最为稀少,仅36种;自然恢复模式下湿生植物种类最为丰富,占物种总数的81.0%,而种植杨树和荻模式下所占比例分别为78.7%和69.4%;群落类型以自然恢复模式下最为丰富,达11种,其中水生植物群落类型3种,而种植杨树和荻模式下的群落种类分别为8种和1种;各群落间生产力水平差异显著,以种植杨树模式下群落生产力最高,而多样性水平以种植荻模式下最低.结果表明,从植被特征角度来看,自然恢复模式为3种"双退"模式中的最优恢复模式. |
| 关键词: 洞庭湖 退田还湖 植被特征 恢复生态 |
| DOI：10.18307/2011.0311 |
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| 基金项目:中国科学院知识创新工程项目(KZCX2-YW-435-02);国家重点基础研究发展计划项目(2009CB421103);国家自然科学基金项目(30770362)联合资助 |
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| Comparation between the characteristic of wetland vegetations under different restoration modes after returning farmland to lake in the Lake Dongting area |
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REN Bo1,2,3, LI Feng2,3, XIE Yonghong2,3, CHEN Xinsheng2,3, HOU Zhiyong2,3, LI Xu2,3
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1.College of Bioscience and Biotechnology, Hunan Agricultural University, Changsha 410128, P. R. China;2.Key Laboratory of Agro-ecological Processes in Subtropical Region, Institute of Subtropical Agriculture, Chinese Academy of Sciences, Changsha 410125, P. R. China;3.Lake Dongting Station for Wetland Ecosystem Observation and Research, Institute of Subtropical Agriculture, Chinese Academy of Sciences, Changsha 410125, P. R. China
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| Abstract: |
| The characteristics of wetland vegetations in three different restoration modes of "returning farmland to lake" (natural restoration, reed plantation and poplar plantation) were studied baaed on the field investigation of 2006 in the Lake Dongting area. Tlie results showed that the highest and lowest species richness was found in the nwxies of natural restoration and reed plantation, respectively. Moreover, the highest richness of wetland plants was also found in the mode of natural restoration, which took 81.0% of the total number of species, while in the other two restoration modes, the ratios of wetland plants were 78.7% (poplar plantation) and 69.4% (reed plantation), respectively. 11 community types were found in the mode of natural restoration, including 3 communities of aquatic plants, while there were 8 and 1 community types in the modes of poplar plantation and reed plantation, respectively; the productivity changed significantly among different plant community types and the highest productivity was foxrnd in the mode of poplar plantation, while the lowest biodiversity was found in the mode of reed plantation. Based on the above results, we concluded that natural restoration was the best modes among the three different restoration modes for the restoration of the Lake Dongting area. |
| Key words: Lake Dongting returning farmland to lake vegetation characteristics restoration ecology |
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