| 蔬菜地CO2排放特征及其影响因素 |
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| 引用本文： | 项虹艳,朱波,王小国,高美荣.蔬菜地CO2排放特征及其影响因素[J].生态环境,2006,15(1):71-73. |
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| 作者姓名： | 项虹艳 朱波 王小国 高美荣 |
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| 作者单位： | 1. 中国科学院成都山地灾害与环境研究所,四川,成都,610041;中国科学院研究生院,北京,100039
2. 中国科学院成都山地灾害与环境研究所,四川,成都,610041 |
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| 基金项目： | 国家自然科学基金重点项目(40331014)，中国科学院知识创新工程项目(KZCX-SW-01-01B) |
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| 摘 要： | 利用静态箱/气相色谱法对成都平原蔬菜地土壤-作物系统CO2的排放通量变化进行了观测,并分析了作物系统CO2排放速率与环境因子间的关系。多元逐步回归及单因子分析结果表明:施氮与不施氮处理的CO2排放速率与地下5 cm处土壤温度呈极显著正相关,土壤温度是影响蔬菜地CO2排放的主导因子;二者的Q10值分别为3.67和3.55。
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| 关 键 词： | 成都平原 蔬菜地 CO_2排放通量 |
| 文章编号： | 1672-2175（2006）01-0071-03 |
| 收稿时间： | 2005-09-04 |
| 修稿时间： | 2005年9月4日 |
CO2 emissions and influencing factors from vegetable soil in the Chengdu plain of Sichuan Basin |
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| XIANG Hongyan,ZHU Bo,WANG Xiaoguo,GAO Meiyong.CO2 emissions and influencing factors from vegetable soil in the Chengdu plain of Sichuan Basin[J].Ecology and Environmnet,2006,15(1):71-73. |
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| Authors: | XIANG Hongyan ZHU Bo WANG Xiaoguo GAO Meiyong |
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| Institution: | 1. Chcngdu Institute of Mountain Hazards and Environment, Chinese Academy of Soionces, Chengdu 610041, China; 2. Grduate School of Chinese Academy of Sciences, Beijing 100039, China |
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| Abstract: | CO2 flux of emission from soil-vegetable system was measured by static chamber-gas chromatographic techniques in the Chengdu plain of Sichuan Basin,and the relationships were analyzed between CO2 flux and environmental factors.Results showed that soil respiration increased exponentially with increasing soil temperature at the depth of 5 cm and the soil temperature was the dominant factor.The relationship was described with the Q10 model,which represented the sensitivity of soil respiration to temperature. |
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| Keywords: | Chengdu plain vegetable soil CO2 emission flux |
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