嵌套式静态采样箱的设计及其在稻田甲烷通量监测中的应用

刘孝富; 王文杰; 王维; 蒋卫国; 刘海江; 毕军平; 温月雷; 陈强

doi:10.3969/j.issn.1674-991X.2011.06.089

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嵌套式静态采样箱的设计及其在稻田甲烷通量监测中的应用

doi: 10.3969/j.issn.1674-991X.2011.06.089

刘孝富^1,2, ,,
王文杰^2*,
王维²,
蒋卫国¹,
刘海江³,
毕军平⁴,
温月雷⁵,
陈强¹

1.
北京师范大学环境演变与自然灾害教育部重点实验室
2.
中国环境科学研究院环境信息研究所
3.
中国环境监测总站生态室
4.
湖南省环境监测中心站
5.
东北师范大学城市与环境科学学院

详细信息

通讯作者:
刘孝富 E-mail: liuxf@craes.org.cn

中图分类号: X835
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- 被引次数: 0
出版历程
- 收稿日期: 2011-07-22
- 修回日期: 2011-08-30
- 刊出日期: 2011-11-20

Design for Nested Sampling Chamber and Its Application in Methane Flux Monitoring of Paddy Field

1.
Key Laboratory of Environmental Change and Natural Disaster, Beijing Normal University
2.
Institute of Environmental Information, Chinese Research Academy of Environmental Sciences
3.
Office of Ecological Research, China National Environmental Monitoring Center
4.
Hunan Environmental Monitoring Center
5.
School of Urban and Environmental Sciences, Northeast Normal University

More Information

Corresponding author: LIU XIAOFU E-mail: liuxf@craes.org.cn

摘要

摘要: 通过总结得出温室气体静态采样箱设计的基本准则，并以洞庭湖不同湿地类型甲烷排放通量观测为出发点，设计了嵌套式采样箱。该采样箱的优势在于高度和体积可调节，运输和不使用时，顶箱可放入延长箱中不占体积；使用时，顶箱扣在延长箱上增大体积，采样箱高度随延长箱数量的变化而改变。稻田试验性观测发现，洞庭湖区4月早稻甲烷的平均排放通量为10.37 mg/(m²·h)。结果表明，应用嵌套式静态采样箱开展湿地甲烷监测结果可靠。但采样操作需在40 min内完成，以避免箱体内部环境变化引起甲烷排放不稳定。
- 采样箱 /
- 嵌套式 /
- 湿地 /
- 甲烷 /
- 监测
Abstract: Basic rules for making greenhouse gas sampling equipment were summarized, and a nested sampling chamber was designed to measure methane emission fluxes of different kinds of wetland around Dongting Lake. The advantage of the chamber was its adjustability of height and volume. When transported or not in use, reduced volume could be realized by setting the top of the chamber into the middle of it; when used, expanded volume could be generated by setting the top of the chamber upon the middle of it. The height of the chamber changed when numbers of middle parts increased. Field observation showed that the average methane emission flux of paddy around Dongting Lake in April was 10.37 mg/(m²·h), which confirmed the reliability of applying the chamber in wetland methane monitoring. It was remarkable that sampling operation should be completed in 40 minutes in order to avoid instability of methane emission caused by internal environment change of the chamber.
- sampling chamber /
- nested /
- wetland /
- methane /
- monitor