plant succession
2.Relationship between plant community succession and fertility variation of mountain yellow soil in east Chongqing.
3.Abstract: The definitions, theories, research methods of four types of plant community dynamics , i.e. succession, regeneration, fluctuation, edge effect of community will be reviewed.
4.With the succession of communities from submerged plant communities to floating-leaved plant communities,and floating-leaved plant communities to emergent plant communities,the composition of communities became complicated,and the number of accompanying species increased while the occurrence of dominant plant species decreased. The current distribution area of emergent plant communities,528.42hm~2,is the largest; submerged plant communities cover 362.50hm~2;
5.CCA, DCCA. The results are as following: plant communities are classified into 12 types by TWINSPAN, and they reflect changes of two environmental gradients, time of succession and water conditions of soil.
6.The dynamic characterristics of succession process of undergrowth plants in different aged Chinese fir plantations were studied. The results showed that in accompanying stage of accidental species,undergrowth plant species and quantities flourished first,and the structure was very simple.
7.The vegetation types are described of Baishanzu National Nature Reserve in Qingyuan county,Zhejiang Province.The surveyed area covered25thousand hm 2 in which27sample plots with20m×20m each were selected.Based on the importance value of plant species,six vegetation types were devided,viz.evergreen broadleaved forest,evergreen and deciduous broadleaved mixed forest,coniferous and broadleaved mixed forest,coniferous forest,mountain dwarf forest,and mountain shrub and herbosa.Floristic composition,community structure,and trend of community succession of each vegetation type are described.
