Functional traits and adaptation strategies of Alternanthera philoxeroides in different habitats
To explore the differences in functional traits and ecological adaptation strategies of Alternanthera philoxeroides in different habitats,five aquatic and terrestrial habitat sampling points were set up in the Baigui Lake National Wetland Park.Healthy and mature Alternanthera philoxeroides plants were collected to measure 10 traits including leaf length,leaf width,leaf thickness,internode length,leaf water content,leaf dry matter content,specific leaf area,specific leaf weight,chlorophyll content,and leaf nitrogen content.The results showed that leaf water content and specific leaf area in terrestrial habitats were significantly lower than those in aquatic habitats,while leaf dry matter content was significantly higher in aquatic habitats.In aquatic habitats,leaf thickness was significantly positively correlated with chlorophyll content and leaf nitrogen content,while in-ternode length was significantly positively correlated with leaf water content and significantly negatively correla-ted with leaf dry matter content.In terrestrial habitats,chlorophyll content of leaves was significantly negatively correlated with specific leaf area.Principal component analysis revealed differential clustering of plants in a-quatic and terrestrial habitats.The study results revealed the ecological adaptation strategies of Alternanthera philoxeroides to different habitats,adapting to habitat changes by altering the functional traits of leaves.
万方数据
维普
