Spatial pattern of dominant tree species of the secondary monsoon rain forest in Lianjiang, Guangdong Province

Abstract

Based on the summed dominance ratios of species in sample plots, the first three dominant species (Litchi chinensis, Elaeocarpus sylvestris andCanarium album) of the secondary monsoon rain forest of Mt. Royal Shoe in Lianjiang City, western Guangdong, were chosen for analyzing their spatial distribution pattern with the analysis methods such as frequency models of Poisson Distribution, Two Negative Items Distribution, Neyman Distribution, aggregate indexes, Taylor exponential equation and Iwao's equation modeling. The results showed that these three species distributed in the congregate spatial pattern.Litchi chinensis andElaeocarpus sylvestris had the characteristic of basic congregate population and attractive characteristic between their plants. The patterns forCanarium album may change and become more evenly distributed with the increase of density. The overall species spatial pattern also depended on the conservation of the secondary monsoon rain forest besides it was affected by the species reproduction characteristics and its growing environment. The congregate spatial patterns of three dominant species showed that it is important to conserve forest urgent conservation of the forest.

Keywords

Secondary monsoon rain forest / Spatial pattern / Summed dominance ratio / Aggregate index / S718.55 / A

References

[1] Hubbell S.P., Foster R.B. Sutton S.L. Diversity of canopy trees in a neotropical forest and implications for conservation [C] Tropical rain forest, Ecology and Management, 1983 Oxford: Blackwell Scientific Publications 78-210.

[2] Krebs C.J. Ecology-The Experimental Analysis of Distribution and Abundance [M], 1978 2nd ed. Harbin: Harper & Row. 449-487.

[3] Bo Li, Chi Yang, Peng Lin Ecology [M], 2000 Beijing: High Education Press 112 196 (in Chinese)

[4] Shaolin Peng The quantitative charactes of components and organization of forest communities in Guangdong [J]. Journal of Plant Ecology and Geobotany, 1989, 13(1): 10-17. (in Chinese)

[5] Pielou E.C. Mathematical Ecology [M], 1985 Harbin: Wiley Interscience Press 119-193.

[6] Taulor L.R. Assessing and interpreting the distributions of insect populations [J]. Ann. Rev. Entomol., 1984, 29: 321-335.

[7] Yuanlei Wang A study on spatial pattern of main trees in south-subtropical secondary broad-leaf forest [J]. Journal of Fujian College of Forestry, 1998, 18(4): 294-297.

[8] Zhongmin Wu, Guangyi Zhou Ecological influences of slash-and-burn agriculture in the tropical areas of China [J]. AMBIO, 1996, 25(3): 210-211.

[9] Qingbo Zen, Yide Li, Bufeng Chen et al. Research and management on tropical forest ecosystems [M], 1997 Beijing: China Forestry Publishing House 1 59 (in Chinese)

[10] Guangyi Zhou Influence of tropical forest changes on environmental quality in Hainan Province of China [J]. Ecological Engineering, 1995, 4: 223-229.