| 再生水补水的北京典型河流滨岸带植被分布特征及多样性研究 |
| Riparian Vegetation Distribution and Diversity Characteristics of Typical Rivers Supplemented with Reclaimed Water in Beijing |
| 投稿时间：2020-12-16 修订日期：2022-07-13 |
| DOI：10.15928/j.1674-3075.202012160349 |
| 中文关键词:再生水 潮白河 永定河 多样性指数 植物群落 生活型 |
| 英文关键词:reclaimed water Chaobai River Yongding River diversity index vegetation community plant life type |
| 基金项目:中央级公益性科研院所基本科研业务费留学支持计划项目（CAFYBB2019GC001-22）和重点项目（CAFYBB2017ZA007）；国家自然科学基金（41601037） |
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| 中文摘要: |
| 为探讨再生水补水河流滨岸带植物分布特征及多样性，2019年7月对永定河和潮白河自然河水和再生水补水滨岸带的典型区域开展植被调查，并基于重要值、多样性指数和聚类分析等统计方法对滨岸带植物物种的组成、分布特征、多样性指数及生活型进行了探讨。结果表明：(1)研究区内共发现34科、73属、90种植物，其中永定河自然段为19科、40属、47种，永定河再生水补水段19科、34属、37种，潮白河自然段为24科、43属、49种，潮白河再生水补水段为20科、36属、44种，均以菊科、禾本科和莎草科的物种数较多，芦苇和香蒲为再生水补水滨岸带常见植物，芦苇、葎草和狗尾草为自然河滨岸带常见植物；(2)聚类分析表明，4个调查区内的群落可划分为9种类型：芦苇+葎草+香蒲群落、葎草+芦苇群落、芦苇+香蒲+三叶鬼针草群落、香蒲+芦苇群落、芦苇+狗尾草群落、香附子+芦苇群落、芦苇+褐穗莎草群落、芦苇+香蒲+香附子群落、芦苇+香蒲群落；(3)再生水补水滨岸带植物物种多样性指数（物种丰富度、Shannon-Wiener、Pielou、Simpson）均低于自然岸带，但其植物平均株高和总盖度均高于自然岸带；(4)调查区内各种植物的生活型中，自然滨岸带植物生活型较再生水补水岸带丰富，但两者均以一年生草本和多年生草本为主要优势生活型。本研究可对再生水补水滨岸带植被恢复与重建以及物种多样性保护提供数据支持。 |
| 英文摘要: |
| In this study, Yongding River and Chaobai River, two typical rivers supplemented with reclaimed water, were selected for a case study. In July 2019, an investigation of the vegetation community in the riparian zones of the two rivers was conducted across 18 sampling transects of 4 areas (3 transects in the natural riparian zone of each river and 6 sampling transects for the riparian zones with reclaimed water for each river). The characteristics of riparian vegetation distribution and diversity were explored based on the results, using statistical methods to characterize the importance value, diversity index and then cluster analysis, focusing on species composition, distribution, diversity indices and life types. Results show that (1) A total of 90 plant species from 73 genera and 34 families were observed during the investigation, dominated by Compositae (23 species), Cyperaceae (9 species) and Gramineae (8 species), together accounting for 45% of the total species. However, species richness was different among the four investigation areas and higher in the natural riparian zone for both rivers: 47 species, 40 genus and 19 families in the natural riparian zone of Yongding River, and 37 species, 34 genus and 19 families in the riparian zone of Yongding River replenished by reclaimed water; 49 species, 43 genus and 24 families in natural riparian zone of Chaobai River, and 44 species, 36 genus and 20 families in the riparian zone of Chaobai River replenished by reclaimed water. In addition, Phragmites australis and Typha orientalis were the common plants in the riparian zone replenished by reclaimed water, and Phragmites australis, Humulus scandens and Setaria viridis were the common plants in the natural riparian zone. (2) Cluster analysis shows that the vegetation community in the four investigation areas was divided into nine plant groups: Phragmites australis + Humulus scandens + Typha orientalis; Humulus scandens + Phragmites australis; Phragmites australis + Typha orientalis + Bidens Pilosa; Typha orientalis + Phragmites australis; Phragmites australis + Setaria viridis; Cyperus rotundus + Phragmites australis; Phragmites australis + Cyperus fuscus; Phragmites australis + Typha orientalis + Cyperus rotundus; Phragmites australis+Typha orientalis. (3) The species richness, Shannon-Wiener diversity, Pielou evenness and Simpson?dominance?degree of the vegetation community of the riparian zone replenished by reclaimed water was lower than those in the natural riparian zone. While the average plant height and coverage of the riparian zone replenished by reclaimed water was higher than those in natural riparian zone. (4) The plant community consisted of nine life types and the life types were dominated by annual and perennial herbs, but life types in the natural riparian area were richer. This study provides information important for the restoration, reconstruction, and protection of plant diversity in the riparian zone of rivers replenished by reclaimed water. |
| 张 義,于一雷,李胜男,徐卫刚,韦 玮,郝金虎.2022.再生水补水的北京典型河流滨岸带植被分布特征及多样性研究[J].水生态学杂志,43(4):45-55. |
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