| 温度对杉木林土壤呼吸的影响(英文) |
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| 引用本文： | 郭剑芬,杨玉盛,刘乐中,赵月彩,陈增文,毛艳玲.温度对杉木林土壤呼吸的影响(英文)[J].林业研究,2009,20(1):49-53. |
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| 作者姓名： | 郭剑芬 杨玉盛 刘乐中 赵月彩 陈增文 毛艳玲 |
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| 作者单位： | GUO Jian-fen(Key Laboratory of Humid Subtropical Eco-geographical Process of the Ministry of Education, College of Geographical Sciences, Fujian Normal University, Fuzhou 350007, P. R. China;Post-doctoral Research Station of Geography, Fujian Normal University, Fuzhou, 350002,P.R.China);YANG Yu-sheng,LIU Le-zhong,ZHAO Yue-cai,CHEN Zeng-wen(Key Laboratory of Humid Subtropical Eco-geographical Process of the Ministry of Education, College of Geographical Sciences, Fujian Normal University, Fuzhou 350007, P. R. China);MAO Yan-ling(College of Resources and Environment, Fujian Agriculture and Forestry University, Fuzhou 350002, P. R. China)
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| 基金项目： | 中国博士后基金，the Special Foundation for Young Scientists of Fujian Province |
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| 摘 要： | Soil samples collected from the surface soil (0(10 cm) in an 88-year-old Chinese fir (Cunninghamia lanceolata) forest in Nanping, Fujian, China were incubated for 90 days at the temperatures of 15°C, 25°C and 35°C in laboratory. The soil CO2 evolution rates were measured at the incubation time of 2, 5, 10, 15, 20, 25, 30, 35, 40, 50, 60, 70, 80 and 90 days. The results showed that CO2 evolution rates of soil samples varied significantly with incubation time and temperature during the incubation period. Mean CO2 evolution rate and cumulative amount of CO2 evolution from soil were highest at 35°C, followed by those at 25°C, and 15°C. Substantial differences in CO2 evolution rate were found in Q10 values calculated for the 2nd and 90th day of incubation. The Q10 value for the average CO2 evolution rate was 2.0 at the temperature range of 15-25°C, but it decreased to 1.2 at 25- 35°C. Soil CO2 evolution rates decreased with the incubation time. The cumulative mineralized C at the end of incubation period (on the 90th day) was less than 10% of the initial C amounts prior to incubation.
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| 关 键 词： | 森林土壤 中国冷杉 呼吸作用 温度 |
| 收稿时间： | 17 October 2009 |
Effect of temperature on soil respiration in a Chinese fir forest |
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| Jian-fen Guo,Yu-sheng Yang,Le-zhong Liu,Yue-cai Zhao,Zeng-wen Chen,Yan-ling Mao.Effect of temperature on soil respiration in a Chinese fir forest[J].Journal of Forestry Research,2009,20(1):49-53. |
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| Authors: | Jian-fen Guo Yu-sheng Yang Le-zhong Liu Yue-cai Zhao Zeng-wen Chen Yan-ling Mao |
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| Institution: | [1]Key Laboratory of Humid Subtropical Eco-geographical Process of the Ministry of Education, College of Geographical Sciences Fujian Normal University, Fuzhou 350007, P. R. China [2]Post-doctoral Research Station of Geography, Fujian Normal University, Fuzhou 350007, P. R. China [3]College of Resources and Environment, Fujian Agriculture and Forestry University, Fuzhou 350002, P. R. China |
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| Abstract: | Soil samples collected from the surface soil (0–10 cm) in an 88-year-old Chinese fir (Cunninghamia lanceolata) forest in Nanping, Fujian, China were incubated for 90 days at the temperatures of 15°C, 25°C and 35°C in laboratory. The
soil CO2 evolution rates were measured at the incubation time of 2, 5, 10, 15, 20, 25, 30, 35, 40, 50, 60, 70, 80 and 90 days. The
results showed that CO2 evolution rates of soil samples varied significantly with incubation time and temperature during the incubation period. Mean
CO2 evolution rate and cumulative amount of CO2 evolution from soil were highest at 35°C, followed by those at 25°C, and 15°C. Substantial differences in CO2 evolution rate were found in Q10 values calculated for the 2nd and 90th day of incubation. The Q10 value for the average CO2 evolution rate was 2.0 at the temperature range of 15–25°C, but it decreased to 1.2 at 25–35°C. Soil CO2 evolution rates decreased with the incubation time. The cumulative mineralized C at the end of incubation period (on the
90th day) was less than 10% of the initial C amounts prior to incubation.
Foundation project: This study was supported by China Postdoctoral Science Foundation (20070410226) and the Special Foundation
for Young Scientists of Fujian Province (2006F3038). |
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| Keywords: | forest soil Chinese fir respiration temperature |
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