沿海沙地不同林地土壤呼吸·总硝化·反硝化速率季节变化
Seasonal Changes of Soil Respiration, Total Nitrification and Denitrification Rates in Different Forest Lands of Coastal Sandy Land
蔡昕航 1荣俊冬 1陈礼光 1何天友 2陈凌艳 2施成坤 3郑郁善1
作者信息
- 1. 福建农林大学林学院，福建福州350002
- 2. 福建农林大学园林学院，福建福州350002
- 3. 福建省东山赤山国有防护林场，福建福州350002
- 折叠
摘要
[目的]研究沿海沙地不同林地土壤呼吸、总硝化、反硝化速率季节变化,以了解和掌握沿海沙地土壤碳氮动态变化。[方法]应用气压过程分离( Barometric process separation,BaPS)技术对福建漳州东山县竹林地、湿地松林地、木麻黄林地、桉树林地的土壤呼吸速率、总硝化速率、反硝化速率季节动态变化进行研究。[结果]不同林地土壤呼吸速率、总硝化速率、反硝化速率季节变化趋势不同,温度与土壤呼吸速率、总硝化速率、反硝化速率呈显著性相关,pH、含水率对不同林地土壤呼吸速率、总硝化速率、反硝化速率影响程度不同。[结论]不同林地土壤的呼吸作用、硝化作用、反硝化作用相互影响,程度各不相同。
Abstract
[ Objective] To research the seasonal changes of soil respiration, total nitrification and denitrification rates in different forest lands of coastal sandy land, and to grasp the carbon and nitrogen dynamics of soil in coastal sandy land. [ Method] Barometric process separation ( BaPS) technology was used to research the seasonal dynamic changes of soil respiration, total nitrification and denitrification rates in bamboo forest land, Pinus elliottii forest land, Casuarina equisetifolia forest land, and eucalyptus forest land in Zhangzhou City of Fujian Province. [ Result] Seasonal change trend varied in soil respiration, total nitrification and denitrification rates of different forest lands. Temperature showed significant correlation with soil respiration, total nitrification and denitrification rates. pH and moisture content had different degrees of impacts on soil respiration, total nitrification and denitrification rates. [ Conclusion] The soil respiration, total nitrification and denitrification rates have mutual influences in different degrees.
关键词
呼吸速率/总硝化速率/反硝化速率/季节变化/环境因子Key words
Respiration rate/Total nitrification rate/Denitrification rate/Seasonal variation/Environmental factor引用本文复制引用
基金项目
福建省农业科技重大专项(2013NZ0001)
福建省农业科技重大项目(2010N5002)
中央财政林业科技推广项目(7号)
出版年
2016
国家科技期刊平台
NSTL
维普
万方数据