生态学杂志2012，Vol.31Issue(10)：2461-2465,5.
杉木人工林土壤呼吸速率对水热条件变化的响应
Responses of soil respiration rate in Chinese fir plantation to the changes of heat and moisture condition
摘要
Abstract
By using Li-8100, this paper studied the dynamic variations of soil respiration in a Chinese fir plantation in Jianyang of Fujian Province, East China during weather change. The soil respiration rate in the plantation had a similar variation trend with soil temperature, but the peak value of the soil respiration rate occurred at different time under different weather conditions. Normally, the peak value occurred at about 13:00, but appeared at 11:00 when the air temperature and precipitation had obvious change. The diurnal variation range of the soil respiration rate also varied under different weather conditions, being 37.9% and 50.6% at lower temperature and higher temperature, respectively. In companying with great extent of cooling and raining, the soil respiration rate decreased sharply, with the minimum on the fifth day after the weather change, and then increased with rising temperature, taking 10 days from decrease to recover. The soil respiration rate showed a significant positive correlation with the surface soil temperature, and a negative correlation with the soil moisture content.关键词
土壤呼吸速率/水热条件/杉木人工林/土壤温度/土壤含水量Key words
soil respiration rate/ heat and moisture condition/ Chinese fir plantation/ soil temperature/ soil moisture content.分类
农业科技引用本文复制引用
汪娜,黄义雄,叶功富,孙月,王亮..杉木人工林土壤呼吸速率对水热条件变化的响应[J].生态学杂志,2012,31(10):2461-2465,5.基金项目
"十一五"国家科技支撑计划项目(2009BADB2B0302)资助. （2009BADB2B0302）
