摘要
The soil respiration rate was measured with an IRGA in the natural Larix gmelinii forest of the Northern Great Xing’anling Mountain in the cool temperate zone.The environmental factors were recorded using the weather equipment.The soil respiration showed obvious diurnal variation and a total 706 gC·m-2 was released during the plant growth period(May.1th～Oct.31th).The soil respiration rate was influenced significantly by soil tempeture in this zone,and a significant postive correlation was found between soil respiration rates and soil tempetures in 10 cm depth（r=0.879 5）.However the soil respiration was not significantly influenced by the soil moisture.Furthmore,there was a negative relationship between the soil respiration rate and air CO2 contiontration of the air in forest（r=-0.426 1）.The results from the experiment can provide the basical materials for the calculation of carbon flux in the northern cool temperate zone of China.
The soil respiration rate was measured with an IRGA in the natural Larix gmelinii forest of the Northern Great Xing＇anling Mountain in the cool temperate zone. The environmental factors were recorded using the weather equipment. The soil respiration showed obvious diurnal variation and a total 706 gC· m^- 2 was released during the plant growth period （ May. 1^th ～Oct. 31^th）. The soil respiration rate was influenced significantly by soil tempeture in this zone, and a significant postive correlation was found between soil respiration rates and soil tempetures in 10 cm depth （ r = 0. 879 5 ）. However the soil respiration was not significantly influenced by the soil moisture. Furthmore, there was a negative relationship between the soil respiration rate and air CO2 contiontration of the air in forest （ r = - 0.426 1）. The results from the experiment can provide the basical materials for the calculation of carbon flux in the northern cool temperate zone of China.
出处
《林业科学》
CAS
CSCD
北大核心
2008年第9期142-145,共4页
Scientia Silvae Sinicae
基金
国家林业局“十五”重点项目(2001-01)
国家自然科学基金重大项目(30590381-03)
内蒙古农业大学博士科研启动基金
关键词
土壤呼吸
土壤温度
兴安落叶松林
大兴安岭
soil respiration rate
soil temperature
Larix gmelinii forest
the Great Xing＇anling Mountain
