摘要
为了解胶州湾湿地不同盐沼植被分布区内大型底栖动物的生态特征,探究植被群落与土壤环境要素的关系,本研究针对夏季胶州湾湿地植被、大型底栖动物以及土壤环境要素的进行了调查。胶州湾湿地主要植被类型为芦苇、盐地碱蓬、互花米草和大米草,各植被呈带状分布,芦苇分布于高潮带,盐地碱蓬、互花米草和大米草分布于中潮带。不同植被分布区的表层土壤中值粒径相近,土壤pH呈现中性或弱碱性特征,各植被分布区的表层土壤全盐含量呈极显著差异(P<0.01),大米草分布区平均全盐含量(23.25 g·kg^(-1))与互花米草分布区平均全盐含量(12.54 g·kg^(-1))均显著高于盐地碱蓬分布区平均全盐含量(8.08 g·kg^(-1))和芦苇分布区平均全盐含量(6.04 g·kg^(-1))。大型底栖动物的主要类群为节肢动物和环节动物,但是不同分布区内其功能群有所不同:芦苇与盐地碱蓬分布区优势功能群均为植食性大型底栖动物,丰度占比分别为97.78%和63.33%;互花米草分布区的大型底栖动物中,肉食性的和杂合性的分别占比为37.68%和31.16%;大米草植被分布区的大型底栖动物中杂食性的占比为50.00%;米草分布区的大型底栖动物以肉食性的和杂食性的功能群为主,米草入侵改变了胶州湾湿地大型底栖动物的功能群组成与分布。典范对应分析(CCA)结果表明,全盐含量对胶州湾盐沼植被的群落结构影响较大。综合分析发现,胶州湾盐沼植被能够影响大型底栖动物功能群结构,表层土壤全盐含量是植被群落结构的主要环境驱动因子。
In order to investigate the ecological characteristics of Macrobenthos in different salt marsh vegetation distribution areas of Jiaozhou Bay Wetland and explore the relationship between vegetation community and soil environmental factors,the of Jiaozhou Bay Wetland Vegetation,Macrobenthos and soil environmental factors in summer were investigated.The results showed that the main vegetation types in Jiaozhou Bay Wetland were Phragmites australis,Suaeda salsa,Spartina alterniflora and Spartina anglica.According to the analysis of beach elevation,the vegetation in the northern Jiaozhou Bay Wetland is zonal distribution.Phragmites australis is distributed in the high tide zone,Suaeda salsa,Spartina anglica and Spartina alterniflora were distributed in the middle tide zone.The median particle diameter of surface soil in different habitats is similar;pH is neutral and weakly alkaline.Salinity of surface soil in different vegetation habitats was significantly different(P<0.01),The average total salt content in Spartina anglica distribution area(23.25 g·kg^(-1))and Spartina alterniflora distribution area(12.54 g·kg^(-1))was significantly higher than that in Suaeda salsa(8.08 g·kg^(-1))and Phragmites australis(6.04 g·kg^(-1)).The main group of macrobenthos in this survey is arthropod and annelids,but the functional groups of macrobenthos in different habitats were different.The dominant functional groups of Phragmites australis and Suaeda salsa habitats were phytophagous,with abundance accounting for 97.78%and 63.33%respectively.In the habitat of Spartina alterniflora,carnivorous accounted for 37.68%and omnivorous accounted for 31.16%;the omnivorous accounted for 50.00%in Spartina anglica habitats.Carnivorous and omnivorous functional groups dominated the habitats of Spartina sp.The invasion of Spartina sp.changed the composition and distribution of macrobenthos’functional groups in Jiaozhou Bay Wetland.CCA analysis showed that salinity of topsoil had a great influence on the community structure of salt marsh vegetation in Jiaozhou Bay.The comprehensive analysis showed that the salt marsh vegetation in Jiaozhou Bay affected the functional group structure of macrobenthos,and the main environmental factor driving the vegetation community structure was the salinityof surface soil.
作者
刘欣禹
徐子钧
魏计房
赵玉慧
于庆云
沙婧婧
周瑞佳
杜小媛
齐衍萍
Liu Xinyu;Xu Zijun;Wei Jifang;Zhao Yuhui;Yu Qingyun;Sha Jingjing;Zhou Ruijia;Du Xiaoyuan;Qi Yanping(North China Sea Environmental Monitoring Center,State Oceanic Administration,Qingdao 266033,China;Key Laboratory of Ecological Prewarning and Protection of Bohai Sea,Ministry of Natural Resources,Qingdao 266033,China;Shandong Provincial Key Laboratory of Marine Ecological Environment and Disaster Prevention and Mitigation,Qingdao 266033,China)
出处
《中国海洋大学学报（自然科学版）》
CAS
CSCD
北大核心
2023年第12期50-60,共11页
Periodical of Ocean University of China
基金
联合国开发计划署-全球环境基金项目(YSLMEⅡ)资助。
关键词
盐沼湿地
大型底栖动物
功能群
环境要素
全盐含量
胶州湾湿地
salt marsh wetland
macrobenthos
functional group
environment factor
salinity
wetland of Jiaozhou Bay
