欢迎访问林草资源研究

FOREST RESOURCES WANAGEMENT ›› 2014›› Issue (5): 69-73.doi: 10.13466/j.cnki.lyzygl.2014.05.013

• Scientific Research • Previous Articles     Next Articles

The Intensity of Soil Nitrification-Denitrification and Its Influence Factors in Diaoluoshan Vatica mangachapoi Forest

GAO Wendong, ZHONG Shengyun, LIU Weifeng, JIN Zhehao, WANG Yilin, HAO Qingyu   

  1. Ministry of Education Key Laboratory for Tropical Animal and Plant Ecology,College of Life Sciences,Hainan Normal University,Haikou 571158,China
  • Received:2014-07-17 Revised:2014-09-24 Online:2014-10-28 Published:2020-11-23

Abstract: 5 point sampling method was adopted to take soil sample in the Vatica mangachapoi single-species-dominated forest of Diaoluoshan Nature Reserve,Hainan Island.The effects of altitude,soil layer depth,season and soil physical & chemical properties on the soil intensity of nitrification-denitrification were analyzed.The results showed that the altitude and soil layer depth had no significant effect on the soil nitrification-denitrification(p> 0.05).The season had a significant effect on them(p< 0.05),of which the soil intensity of the nitrification-denitrification in a rainy season was dozens to a hundred times higher than that in a dry season.The soil physical & chemical properties had no effects on soil nitrification intensity(p> 0.05),but the total phosphorus,total potassium,available phosphorus,available potassium and moisture content were significantly negative related to the soil intensity of denitrification(p< 0.05). This suggests that the season is an important influence factor,and part of soil physical & chemical properties are one of the important factors affecting soil denitrification intensity in the process of soil nitrogen transformation in the research area.

Key words: nitrification-denitrification, influence factors, Vatica mangachapoi forest, Diaoluoshan

CLC Number: