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| 2011和2016年亚热带城市生态系统通量源区及CO2通量特征——以上海市奉贤大学城为例 |
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张凯迪1,2, 龚元2,3, 郭智娟1,2, 魏艳艳1,2, 徐良4, 姚国芳4, 赵敏5
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1.上海师范大学 生命与环境科学学院, 上海 200234;2.上海师范大学 城市生态与环境修复重点实验室, 上海 200234;3.南京林业大学 生物与环境学院, 江苏, 南京 210037;4.上海师范大学 旅游学院, 上海 200234;5.上海师范大学 城市生态与环境研究中心, 上海 200234
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| 摘要: |
| 以上海市奉贤大学城为例，基于地理信息系统、涡动相关（EC）系统和通量源区模型分析了2011和2016年上海市奉贤大学城二氧化碳（CO2）通量特征（CO2通量、碳浓度）、通量源区的变化特征.分析结果表明：1）2011年CO2通量日均值和CO2质量浓度分别为0.6 μmol·m-2·s-1和388 mg·L-1，2016年两者增加到了0.9 μmol·m-2·s-1和406 mg·L-1；2）2011和2016年研究区内通量源区范围都随着大气稳定度的增加而增加；3）当大气处于稳定状态时，非主风向上的通量源区范围远远大于主风向上的通量源区范围；当大气处于不稳定状态时，主风向和非主风向上的通量源区长度相差较小. |
| 关键词: 亚热带城市生态系统 CO2通量 涡动相关 地理信息系统 |
| DOI：10.3969/J.ISSN.1000-5137.2018.04.010 |
| 分类号:P41;X51 |
| 基金项目:国家自然科学基金青年基金（31100354）；上海师范大学旅游学院/上海旅游高等专科学校科研项目（KY2017-BX）. |
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| Flux source area and CO2 flux characteristics of subtropical urban ecosystem in 2011 and 2016: A case study of Shanghai Fengxian University City |
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Zhang Kaidi1,2, Gong Yuan2,3, Guo Zhijuan1,2, Wei Yanyan1,2, Xu Liang4, Yao Guofang4, Zhao Min5
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1.College of Life and Environmental Sciences, Shanghai Normal University, Shanghai 200234, China;2.Key Laboratory for Urban Environmental Repair, Shanghai Normal University, Shanghai 200234, China;3.College of Biology and the Environment, Nanjing Forestry University, Nanjing 210037, Jiangsu, China;4.College of Tourism, Shanghai Normal University, Shanghai 200234, China;5.Urban Ecology and Environment Research Center, Shanghai Normal University, Shanghai 200234, China
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| Abstract: |
| Shanghai Fengxian University City was adopted as an example to analyze the change of CO2 flux,carbon intensity,and flux source area in year 2011 and 2016 based on geographic information system(GIS),eddy correlation(EC) system,and flux source area model.The conclusions were as follow:1) The daily mean values of CO2 flux and carbon dioxide concentration were 0.6 μmol·m-2·s-1 and 388 mg·L-1 in 2011 and increased to 0.9 μmol·m-2·s-1 and 406 mg·L-1 in 2016; 2) the range of flux source area increased with the increase of atmospheric stability in the research area in both 2011 and 2016; 3) when the atmosphere is in a state of stability,the range of the flux source area under other wind directions is bigger than that under prevailing wind direction.When the atmosphere is in an unstable state,the differences in the length of the flux source area between the prevailing wind direction and the other wind directions are relatively small. |
| Key words: subtropical urban ecosystem CO2 flux eddy covariance geographic information system |
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