Anhui Agricultural Science Bulletin >
2026 , Vol. 32 >Issue 5: 109 - 112
DOI: https://doi.org/10.16377/j.cnki.issn1007-7731.2026.05.025
Investigation on aquatic plant resources in the Suzhou section of the Beijing-Hangzhou Grand Canal
Received date: 2025-11-05
Online published: 2026-03-12
To investigate the status of aquatic plant resources in the Suzhou section of the Beijing-Hangzhou Grand Canal, this study adopted field investigation methods. 6 sampling sites were randomly selected in the water area and wetland areas within 500 meters of the bank in the Suzhou section of the Beijing-Hangzhou Grand Canal, and investigations and analyses were conducted on the floristic composition, species diversity, phenological cycle and distribution of invasive alien plants of aquatic plants. The survey results showed that a total of 47 species of aquatic plants were recorded in this reach, belonging to 41 genera and 30 families, covering 5 life forms including submerged, free-floating, emergent, hygrophytic and floating-leaved plants. Among them, hygrophytic plants (19 species) were the most, while floating-leaved plants (5 species) were the fewest. The floristic components were complex and diverse, dominated by cosmopolitan elements (51.2% of genera and 53.2% of species), and temperate and tropical elements complemented each other synergistically to jointly maintain the diversity of aquatic plants in the region. The phenological cycle had distinct characteristics with obvious seasonal variations, endowing the aquatic plants with high ornamental value. 5 species of invasive alien plants were found, which had not broken out on a large scale yet but posed certain potential ecological risks. The results showed that this reach had a richer diversity of aquatic plant species. Hydrocotyle verticillata and Cabomba caroliniana had established stable populations in study area through natural and anthropogenic dispersal. Based on the research results, strategies for landscape improvement of this reach were put forward from 5 dimensions: community structure optimization, invasive plant prevention and control, water quality improvement, integration of ecology and human culture, and long-term scientific research and management. This study provided a reference for the protection of aquatic plant resources in similar regions.
Key words: aquatic plants; species; phenological cycle; invasive plants
Zhao Shuying , Zhou Yang , Zhou Qi , Cui Jian . Investigation on aquatic plant resources in the Suzhou section of the Beijing-Hangzhou Grand Canal[J]. Anhui Agricultural Science Bulletin, 2026 , 32(5) : 109 -112 . DOI: 10.16377/j.cnki.issn1007-7731.2026.05.025
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