信阳师范学院学报（自然科学版）2024，Vol.37Issue(3)：329-336,8.DOI:10.3969/j.issn.1003-0972.2024.03.008
台州市"一江两溪"河岸带植被分布格局及其环境解释
Vegetation Distribution Pattern of Plant Community and Habitat Explanation Analysis in the"One River and Two Streams"Riparian Zone of Taizhou
摘要
Abstract
For the first time,a habitat survey was conducted on the wetland plants in the riparian zone of"One River and Two Streams"in Taizhou city,Zhejiang province,to investigate the main environmental gradient factors affecting the species diversity composition and spatial distribution at the regional scale,using the wetland vegetation of the riparian.The results showed that:(1)A total of 100 species of wetland vascular plants from 31 families and 84 genera were surveyed in the basin,with the family Poaceae(28 species)and Asteraceae(15 species)being the most abundant.(2)The α-diversity of plant communities in different branches of the study area was ranked as:Yongan river＞Shifeng river＞Jiaojiang river＞Lingjiang river.(3)Ordinary Kriging interpolation analysis showed that the riparian habitat factors in each section presented obvious spatial heterogeneity.(4)Based on the ward clustering method,all plant community samples could be divided into three cluster types,i.e.Ass.Spartina alterniflora+Phragmites australis,Ass.Sapium sebiferum-Arundo donax,and Ass.Pterocarya stenoptera-Salix chienii+Saccharum arundinaceum+Arundo donax;The non-metric multiscale(NMDS)ranking results were also consistent with the clustering results,and reflected the distribution pattern of vegetation response to environmental gradient from downstream to upstream.(5)The results of the redundancy analysis(RDA)ranking showed that the total potassium in soil was the key environmental limiting factors affecting the distribution of vegetation in the riparian zone;The functional group composed of S.alterniflora and P.australis was most significantly affected by the gradient of environmental factors.关键词
河岸带/物种多样性/植被分布格局/环境因子/冗余分析Key words
riparian zone/species diversity/vegetation distribution pattern/environmental factors/redundancy analysis(RDA)分类
农业科技引用本文复制引用
陈正满,李贺鹏,朱弘..台州市"一江两溪"河岸带植被分布格局及其环境解释[J].信阳师范学院学报（自然科学版）,2024,37(3):329-336,8.基金项目
浙江省省院合作林业科技项目(2022SY06) （2022SY06）
浙江省省属科研院所扶持专项(2024F1065-1,2021F1065-6) （2024F1065-1,2021F1065-6）
