| 土壤CO2浓度与地表CO2通量的季节变化及其相互关系 |
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| 引用本文： | 程建中,李心清,周志红,王兵,程红光,邢英,唐源. 土壤CO2浓度与地表CO2通量的季节变化及其相互关系[J]. 地球与环境, 2011, 39(2): 196-202 |
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| 作者姓名： | 程建中 李心清 周志红 王兵 程红光 邢英 唐源 |
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| 作者单位： | 1. 中国科学院地球化学研究所环境地球化学国家重点实验室,贵阳,550002
2. 中国科学院地球化学研究所环境地球化学国家重点实验室,贵阳,550002;中国科学院研究生院,北京,100049 |
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| 基金项目： | 中国科学院知识创新工程重要方向项目(KZCX2-YW-306-3); 国家自然科学基金(40872212); 国家重点基础研究发展规划(973)项目(2006CB403205) |
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| 摘 要： | 采用气相色谱法对贵州喀斯特地区不同土地利用方式土壤剖面CO2浓度与地表CO2通量的季节变化特征进行为期一年的观测.结果表明:土壤CO2浓度和地表CO2通量具有明显的季节变化规律,均表现为:从春季到夏季浓度和通量逐渐增加,而从秋季到冬季浓度和通量又逐渐降低,这与该区域的温度和降雨量变化趋势一致.不同土地利用方式土壤CO2...
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| 关 键 词： | 土壤CO2浓度 地表CO2通量 季节变化 温度 湿度 喀斯特地区 |
Seasonal Variation and Relationship Between Soil CO_2 Concentrations and Surface CO_2 fluxes |
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| CHENG Jian-zhong,LEE Xin-qing,ZHOU Zhi-hong,WANG Bing,CHENG Hong-guang,XING Ying,TANG Yuan. Seasonal Variation and Relationship Between Soil CO_2 Concentrations and Surface CO_2 fluxes[J]. Earth and Environment, 2011, 39(2): 196-202 |
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| Authors: | CHENG Jian-zhong LEE Xin-qing ZHOU Zhi-hong WANG Bing CHENG Hong-guang XING Ying TANG Yuan |
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| Affiliation: | CHENG Jian-zhong1,LEE Xin-qing1,ZHOU Zhi-hong1,2,WANG Bing1,CHENG Hong-guang1,XING Ying1,TANG Yuan1,2(1.State Key Laboratory of Environmental Geochemistry,Institute of Geochemistry,Chinese Academy of Sciences,Guiyang 550002,China,2.Graduate University of the Chinese Academy of Sciences,Beijing 100049,China) |
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| Abstract: | Seasonal variations in the concentrations of soil air CO2 and surface CO2 fluxes under different land uses were studied in the karst regions of Guizhou by GC technique for one year.The results showed that the seasonal variation regularities of soil CO2 concentrations and surface CO2 fluxes were very obvious,i.e.,increasing from spring to summer and decreasing from autumn to winter in response to temperature and precipitation changes in this region.Subsurface CO2 concentrations and surface CO2 fluxes under d... |
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| Keywords: | soil CO2 concentration surface CO2 flux seasonal variation temperature and moisture karst region |
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