[Relationship between flooded situation and poplar growth on beach land of Yangtze River in Anhui].
Through the analysis on the dynamics of flooding and the annual ring series of poplar trees on the beach land of Yangtze river in Anhui in the period of 1989-1997, the related models on flooded situation and ring growth were built. The results showed that there existed significant differences in flooding time and depth on different elevations of beach land, which made a great influence on the annual ring growth of poplar trees. The maximal flooded depth was more important than flooded time for its influence on ring growth. In addition, the flooded situation in August and September of previous year had a significantly negative influence on the ring growth of current year. The beach land with a maximal flooded depth of more than 2 m was not suitable for high-productive plantation of timber. It is suggested that a little more dense plantation should be managed for the production of pulp materials.
Wu
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Z
Forsestry Faculty of Anhui Agricultural University, Hefei 230036. wuzemin@mail.hf.ah.cn
Sun
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Duan
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D002681:China; D004190:Disasters; D017753:Ecosystem; D008954:Models, Biological; D031308:Salicaceae / Q000254:growth & development / Q000502:physiology*