Study on the Relationship between Understory Species Diversity and Soil Properties for the Casuarina equisetifolia Coastal Protective Forest

Abstract

Abstract: The understory plant species diversity and soil physical and chemical properties were investigated,and their relationship of the Casuarina equisetifolia coastal protection forest with different stand structure explored in Haikou.Results showed that the understory plant species composition of the Casuarina equisetifolia forest was simple,with 52 species attributed to 29 families and 46 genera.The species richness index(S),Simpson index(D)and Shannon-wiener index(H')were low,and species richness decreased with increase of human disturbance.The soil water content,soil nutrients including organic matter,available potassium and available phosphorus were very low.The results of correlation analysis showed that soil organic matter,available nitrogen and available potassium were significantly correlated with S,H' and D.The strong correlations between soil properties and plant species diversity demonstrate that organic matter,available nitrogen and available potassium are the most important soil factors impacting understory plant species diversity for the Casuarina equisetifolia coastal protective forest.

Key words: Casuarina equisetifolia coastal protective forest, soil property, understory species diversity, correlation analysis

CLC Number:

Q948

ZHANG Caifeng, YANG Xiaobo, LI Donghai, MO Zhenzhang, YE Fuhong. Study on the Relationship between Understory Species Diversity and Soil Properties for the Casuarina equisetifolia Coastal Protective Forest[J]. FOREST RESOURCES WANAGEMENT, 2012, 0(4): 80-85.

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