The Distribution of Soil Available Phosphorus and its Correlations with Plant Species Diversity in the Forest of MtJinyun

Abstract

Abstract: Distribution characteristics of soil phosphorus availability and its correlations with plant species diversity in the forest ecosystem of Mt.Jinyun are studied in this paper.The results are as follows:①Available P of soil profile in different communities has an evident gradient,i.e.,A(humus layer)>B(deposition layer)>C(parent material layer).②Except for shrub-grassland,soil available P content orderly increases along the successional directions,i.e.,Pinus massoniana forest<P.massonia-Symplocos setchuensis mixed forest<evergreen broadleaved forest.③Different degree's of correlations exist between soil available P and plant species diversity.The correlation between tree diversity and available P content of A and B layers is very significant.

Key words: seed germination, germination rate, germination index, radicle growth, plumule growth, Artemisia halodendron.

CLC Number:

S714.8

Yang Wanqin, Zhong Zhangcheng, Tao Jianping. The Distribution of Soil Available Phosphorus and its Correlations with Plant Species Diversity in the Forest of MtJinyun[J]. cje, 2001, (4): 24-27.

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