Acta Agrestia Sinica

Acta Agrestia Sinica ›› 2025, Vol. 33 ›› Issue (6): 1934-1946.DOI: 10.11733/j.issn.1007-0435.2025.06.025

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Herbaceous Plant Diversity and Environmental Interpretation in Different Habitats： A Case Study of The Anqing Section of The Yangtze River

LUO Lai-kai1,2, YIN Ming-yue1, ZHU Ling1,2, CHENG Ying1,2, YANG Yan-fang1,2, TAN Kai1,2, ZHAO Kai1,2   

  1. 1. College of Life Sciences, Anqing Normal University, Anqing, Anhui Province 246011, China;
    2. The Belt and Road Model International Science and Technology Cooperation Base for Biodiversity Conservation and Utilization In Basins of Anhui Province, Anqing, Anhui Province 246011, China
  • Received:2024-08-05 Revised:2024-10-16 Online:2025-06-15 Published:2025-06-13

不同生境草本植物多样性及环境解释：以长江安庆段河岸带为例

罗来开1,2, 尹明月1, 朱玲1,2, 程樱1,2, 阳艳芳1,2, 谈凯1,2, 赵凯1,2   

  1. 1. 安庆师范大学生命科学学院, 安徽 安庆 246011;
    2. 安徽省"一带一路"流域生物多样性保护与利用国际合作基地, 安徽 安庆 246011
  • 通讯作者: 赵凯,E-mail:zhaokai@aqnu.edu.cn
  • 作者简介:罗来开（1994-），男，汉族，贵州遵义人，硕士研究生，主要从事植物生态学研究，E-mail：627764007@qq.com
  • 基金资助:
    安庆江豚省级自然保护区能力建设项目—生物多样性本底调查（CG-AQ-2022-276 FS34080120220280；长江安徽段鱼类重要栖息地调查横向课题项目（230133）；2023 年度安徽省科研编制计划项目（2023AH010041）资助

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Abstract: To reveal the relationship between herbaceous plant communities distribution characteristics and environmental factors in the riparian zone of the lower reaches of the Yangtze River. In this study， methods such as Ward's minimum variance cluster analysis， Canonical Correspondence Analysis （CCA）， and Pearson correlation analysis were used to analyze 90 plant community plots in the study area. The results showed that： a total of 293 herbaceous species belonging to 65 families and 180 genera were recorded in all the types of habitats， and Asteraceae， Poaceae， Fabaceae and Lamiaceae are the dominant families in all the types of habitats. Under different types in the riparian zone， the plant species richness was in the order of natural riparian zones >farming riparian zone>buliding riparian zone. The ward's minimum variance method was used to classify plant communities of the three riparian zones into 4， 4 and 5 community types， respectively. The occurrence frequency of Ass. Phragmites australis+Leonurus japonicus+Vicia sativa， Ass. Poa annua+Leonurus japonicus +Geranium carolinianum and Ass. Cynodon dactylon+Alternanthera philoxeroides+Geranium carolinianum was the highest in the natural， rock， and prefabricated masonry shorelines， respectively. The results of CCA showed that soil moisture and canopy were the main factors affecting the distribution of plant community in natural riparian zone， human disturbance was the main factor affecting the distribution of plant community in farming riparian zone， and soil total nitrogen was the main factor affecting the distribution of plant community in the building of riparian zone.

Key words: Riparian zone, Herbaceous plants, Environmental factors, Community types

摘要： 为揭示长江下游河岸带草本植物群落分布特征及其与环境因子的关系。本研究采用Ward最小方差聚类、典范对应分析（Canonical correspondence analysis，CCA）和Pearson相关性分析等方法，对研究区90个植物群落样地进行分析。结果表明：长江安庆段河岸带共发现草本植物293种隶属于65科180属，其中菊科（Asteraceae）、禾本科（Poaceae）、唇形科（Lamiaceae）、豆科（Fabaceae）数量较多；不同类型河岸带物种丰富度大小依次为：自然型河岸带>农耕主导型河岸带>开发建设主导型河岸带；3种不同类型河岸带的植物群落可分别划分为4，4和5种群落类型，其中芦苇（Phragmites australis）+益母草（Leonurus japonicus）+救荒野豌豆（Vicia sativa）、早熟禾（Poa annua）+救荒野豌豆（Leonurus japonicus）+野老鹳草（Geranium carolinianum）和狗牙根（Cynodon dactylon）+喜旱莲子草（Alternanthera philoxeroides）+野老鹳草（Geranium carolinianum）分别在自然型河岸带、农耕主导型河岸带和开发建设主导型河岸带出现频率最高；CCA结果表明，土壤含水量和郁闭度是影响自然型河岸带植物群落分布的主导因子，人为干扰是影响农耕主导型河岸带植物群落分布的主导因子，土壤全氮是影响开发建设主导型河岸带植物群落分布的主导因子。

关键词: 河岸带, 草本植物, 环境因子, 群落类型

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