文献类型：期刊文献

中文题名：火烧对中国北亚热带天然马尾松林土壤有机碳的影响

英文题名：Effect of fire on soil organic carbon of natural Pinus massoniana forest in north subtropical area of China

作者：赵志霞[1] 李正才[1] 周君刚[2] 程彩芳[1] 赵睿宇[1] 孙娇娇[2]

第一作者：赵志霞

机构：[1]中国林业科学研究院亚热带林业研究所;[2]富阳市林业局

年份：2016

卷号：35

期号：1

起止页码：135-140

中文期刊名：生态学杂志

外文期刊名：Chinese Journal of Ecology

收录：CSTPCD;;Scopus;北大核心:【北大核心2014】；CSCD:【CSCD2015_2016】；

基金：浙江省重点科技创新团队项目(2010R50030);浙江省自然科学基金项目(LY12C03012);国家科技支撑计划项目(2012BAC13B02)资助

语种：中文

中文关键词：马尾松;火烧;土壤有机碳储量;土壤活性有机碳;土壤养分

外文关键词：Pinus massoniana; fire; soil organic carbon storage; soil labile organic carbon; soilnutrient.

分类号：S153

摘要：以北亚热带天然马尾松火烧迹地为研究对象,对火灾1年后0-50 cm各土层土壤有机碳和土壤养分含量变化进行分析。结果表明：火灾后各层土壤总有机碳、易氧化碳和轻组有机质含量均高于对照样地,增幅分别为4.5%-47.6%、6.6%-43.0%和9.0%-49.1%,且在0-10 cm和10-20 cm土层中差异极显著（P〈0.01）;火灾发生1年后在0-50 cm土壤剖面土壤有机碳储量相比对照样地增加了23.8%（P〈0.01）;过火后土壤总有机碳、易氧化碳和轻组有机质与土壤养分（全氮、水解氮、速效钾）的相关性均达到极显著水平（P〈0.01）。火后土壤有机碳增加的主要原因是植被层未充分燃烧的有机残体的混入。
A study was conducted to analyze the soil organic carbon and soil nutrient content changes of natural Pinus massoniana forest in the depth of 0-50 cm in north subtropical area of China one year after burning. The results showed that the contents of soil total organic carbon （TOC）, easily-oxidized carbon （EOC） and light fraction organic carbon （LFOM） in the burned plots were higher than those in the unburned plots, with respective increases of 4.5%-47.6%, 6.6%-43.0% and 9.0%-49.1% and significant differences in the depths of 0-10 em and 10-20 cm （P〈0.01）. Compared with the unburned plots, the soil carbon storage in the depth of 0-50 cm was increased by 23.8% after forest fire. TOC, EOC and LFOM were all significantly correla- ted to soil nutrients （total N, hydrolysis N, and available K） after forest fire. The main reason for the increased soil organic carbon could be due to the input of organic residues from vegetation layer.