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[1]侯志勇 谢永宏** 高大立 李飞云 李 旭 曾 静 陈心胜 李 峰 邓正苗 潘柏含,胡佳宇.洞庭湖湿地典型植物群落生活型构成及其环境影响因子[J].应用与环境生物学报,2016,22(06):993-999.[doi:10.3724/SP.J.1145.2016.01003]
　HOU Zhiyong,XIE Yonghong**,GAO Dali,et al.The life form and environment factors of typical plant communities in the Dongting Lake wetlands[J].Chinese Journal of Applied & Environmental Biology,2016,22(06):993-999.[doi:10.3724/SP.J.1145.2016.01003]
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洞庭湖湿地典型植物群落生活型构成及其环境影响因子()
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《应用与环境生物学报》[ISSN:1006-687X/CN:51-1482/Q]

卷:
22卷
期数:
2016年06期
页码:
993-999
栏目:
“生态系统的格局与恢复”专栏论文
出版日期:
2016-12-25

文章信息/Info

Title:
The life form and environment factors of typical plant communities in the Dongting Lake wetlands
作者:
侯志勇1 谢永宏1** 高大立3 李飞云3 李 旭1 曾 静1 陈心胜1 李 峰1 邓正苗1 潘柏含1;  2 胡佳宇1;  2
1中国科学院亚热带农业生态研究所，农业生态过程重点实验室，洞庭湖湿地生态系统观测研究站 长沙 410125 2中国科学院大学 北京 100049 3东洞庭湖湖国家级自然保护区管理局 岳阳 414005
Author(s):
HOU Zhiyong1;  XIE Yonghong1**;  GAO Dali3;  LI Feiyun3;  LI Xu1;  ZENG Jing1;  CHEN Xinsheng1;  LI Feng1;  DENG Zhengmiao1;  PAN Baihan1 ; 2 & HU Jiayu1;  2
1Key Laboratory of Agro-ecological Processes in Subtropical Region, Chinese Academy of Sciences, Dongting Lake Station for Wetland Ecosystem Research, Institute of Subtropical Agriculture, Chinese Academy of Sciences, Changsha 410125, China 2University of Chinese Academy of Sciences, Beijing 100049, China 3Administration of East Dongting Lake National Nature Reserve, Yueyang 414005, China
关键词:
洞庭湖; 植物群落; 物种多样性; 生活型; 地下水位
Keywords:
Dongting Lake;  plant community;  species diversity;  life form;  groundwater level
分类号:
Q948.1
DOI:
10.3724/SP.J.1145.2016.01003
摘要:
通过分析植物生活型可以了解植物群落结构及其环境的关系. 采用样带法对洞庭湖湿地南荻、苔草、辣蓼和虉草4种植物群落物种多样性、植物生活型结构及环境因子开展调查研究. 结果表明：洞庭湖湖湿地不同高程下典型植物群落物种多样性指数呈明显的规律性变化，表现为沿高程变化呈“V”型特征，即高、低程区高，中程区低，物种多样性指数的变化可能与地下水埋深及物种特性相关；植物群落生活型以一年生植物为主，其次为地下芽和地面芽植物，地上芽和高位芽植物分布较少；群落物种生活型类型及相同生活型植物在群落中的比例随高程的递增而增加；CCA分析表明，土壤物理性质的变化对植物群落生活型的构成影响极为重要，其中地下水位和高程的变化对植物生活型分布起着决定性作用. 因此，地下水位和高程影响群落物种多样性指数，同时地下水位和高程的变化决定植物生活型的分布. （图4 表4 参36）
Abstract:
This research investigated the species diversity, life-form structure and environmental?factors of 4 main plant communities (Triarrhena lutarioriparia, Carex sp., Polygonum hydropiper, and Phalaris arundinacea) in Dongting Lake wetland. The results show that the typical plant community species diversity index varied with the elevation, presenting a “V”- type pattern, characterized by great diversity in both high and low range areas and low diversity in the intermediate zone. The change of plant community diversity index was associated with groundwater depth and species characteristics. The plant community was dominated by Therophytes (Th), followed by Geophytes (G) and Hemicryphytes (H); Chamaephytes (Ch) and Phanerophytes (Ph) were less seen. The proportion of community life form types and the same type of life form in the community increased with the elevation. CCA analysis showed that soil physical properties were an important influencing factor for the composition of plant community life form, and that the ?groundwater level and?elevation? both played a decisive role in the plant life form. This study shows that the groundwater depth and elevation affect the community species diversity index, and the changes of the groundwater level and elevation determine the distribution of life-form.

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更新日期/Last Update: 2016-12-30