Seasonal variation in photosynthesis in relation to differing environmental factors of dominant plant species in three successional communities in Hangzhou Bay Wetlands,East China |
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| Authors: | Tonggui Wu Mukui Yu Ming Wu Jianghua Xiao |
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| Institution: | (1) Coastal Ecosystems Research Station of the Yangtze River Estuary, Ministry Education Key Laboratory for Biodiversity Science and Ecological Engineering, Institute of Biodiversity Science, Fudan University, Shanghai, 200433, People’s Republic of China;(2) Wuhan Botanical Garden, The Chinese Academy of Sciences, Wuhan, 430074, People’s Republic of China;(3) Department of Botany and Microbiology, University of Oklahoma, Norman, OK 73019, USA;(4) Institute of Forest Ecology, Environment and Protection, Chinese Academy of Forestry, Beijing, 100091, China;(5) Key Laboratory of the Ministry of Education for Coastal and Wetland Ecosystems, and School of Life Sciences, Xiamen University, Xiamen, Fujian, 361005, China |
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| Abstract: | We investigated the ecophysiology (physiological ecology) of plant succession within a coastal wetland community. The photosynthetic
characteristics of six plants were studied; Scirpus mariqueter and Carex scabrifolia in early successional communities, Phragmites communis and Tamarix chinensis in mid successional communities, and Salix matsudana and Imperata cylindrica in later successional communities. Environmental factors were concurrently determined for each community. Relationships between
photosynthetic and environmental factors were analyzed by path analysis, and the dependence of photosynthesis on particular
environmental factors was shown to vary between plants in the differing successional communities. Ability to cope with irradiation
appears to be one of the most important factors influencing plant succession. The increasing stratification of plant communities
following colonization of new coastal land necessitates differing physiological strategies and photosynthetic dynamics in
the later colonizing plants. |
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