Welcome to Chinese Journal of Tropical Crops,

Chinese Journal of Tropical Crops ›› 2020, Vol. 41 ›› Issue (6): 1273-1278.DOI: 10.3969/j.issn.1000-2561.2020.06.028

• Ecology • Previous Articles    

Changes of Vegetation and Soil Nutrient in Different Forests after Logging Banin Tropical Coastal Area of Hainan Island

XUE Yang1,LIANG Juzhi1,*(),SU Shaofeng1,YAO Xiaolan2,WANG Xiaoyan1,LIN Zhipan1,XUE Yanwen1   

  1. 1. Hainan Institute of Forestry Science, Haikou, Hainan 571100, China
    2. College of Ecology and Environment, Hainan University, Haikou, Hainan 570228, China
  • Received:2019-07-19 Revised:2019-09-30 Online:2020-06-25 Published:2020-07-30
  • Contact: LIANG Juzhi


The changes of vegetation structures and soil nutrients in coastal forests are important to understand the forest ecological process and restoration of saline-alkali land, and for the biodiversity conservation and ecosystem service function enhancement. The vegetation and soil nutrient characteristics of three types of plantations (Acacia auriculiformis, Casuarina equisetifolia and Eucalyptus robusta), secondary forests and mixed forests (control) banned from cutting in low altitude coastal areas of northern Hainan Island in 1994 were studied using the typical plot method. 57 species belonging to 54 genera and 34 families were investigated. The species composition of the secondary forest and mixed forest communities was richer than that of the pure forest, and no shrubs grew in the C. equisetifolia plantation. In addition to the secondary forests, other forest types had the most abundant species in herblayer. The soil of the five forest plots was acidic, and the content of organic matter and total N in the Eucalyptus robusta plantation, secondary forest and mixed forest was the highest, but the content of available P in the A. auriculiformis and C. equisetifolia plantation was significantly higher than that of the others (P<0.05). Except the mixed forest, available K was 11.27 mg/kg, and that in the other forest types was very low or even undetected. There existed positive correlation between organic matter in the secondary forest, available K in the mixed forests and species compositions. There existed positive correlation in total nitrogen, tree age and height. Therefore, soil nutrients increased with the increase of cutting time. The E. robusta forest had higher organic matter and nitrogen content, but the C. equisetifolia and A. auriculiformis forests had higher phosphorus content, while the secondary mixed forest had higher potassium content.

Key words: forest type, vegetation characteristics, soil nutrients, coastal terrace

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