林业科学2012，Vol.48Issue(1)：7-12,6.
中亚热带森林转换对地表CH4氧化的影响
Effects of Forest Conversion on CH4 Oxidation Rates in Mid-Subtropics
摘要
Abstract
In this study, the forest soil CH4 oxidation rates were measured for consecutive 17 months(2009 -04-2010 - 08 ) using static chamber and gas chromatography techniques. The results showed that soils of both natural forest and plantation were sinks for atmosphere CH4. CH4 oxidation rates varied from 10.83 μg.m-2h-1 to 75.02 μg.m-2h-1 for natural forest and from 7.66 to 46.40 μg.m-2h-1 for plantation during the observation period, and mean annual CH4 oxidation rates in natural and plantation forest soils were 32.01 and 25. 31 μg.m-2h-1, respectively. CH4 oxidation rate was regulated not only by soil temperature, but also by soil volumetric water content and their interaction. While the soil volumetric water content significantly affected CH4 oxidation rates, the effect of soil temperature was dependent on soil volumetric water content and soil depth.关键词
森林转换/天然林/人工林/CH4氧化速率Key words
forest conversion/natural forest/plantation/CH4 oxidation rates分类
农业科技引用本文复制引用
刘小飞,杨智杰,谢锦升,易黎明,钟小剑,杨玉盛..中亚热带森林转换对地表CH4氧化的影响[J].林业科学,2012,48(1):7-12,6.基金项目
国家自然科学基金项目(40901126) （40901126）
教育部创新团队项目(IRT0960) （IRT0960）
