| 生态系统地表通量测量——多通道波文比观测仪介绍 |
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| 引用本文： | 张正偲,赵爱国,董治宝.生态系统地表通量测量——多通道波文比观测仪介绍[J].中国沙漠,2006,26(3):473-477. |
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| 作者姓名： | 张正偲 赵爱国 董治宝 |
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| 作者单位： | 中国科学院寒区旱区环境与工程研究所,沙漠与沙漠化重点实验室,甘肃,兰州,730000 |
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| 基金项目： | 中国科学院知识创新工程项目 |
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| 摘 要： | 地表通量是影响生态系统的非常重要的因子，然而，地表通量测量项目多，时间长，测量误差大是一个难以克服的问题。针对上述问题，介绍一种新近研制的测量地表通量的仪器——多通道波文比观测仪。该观测仪能够实现地表通量要素的同步多通道观测，减少测量过程由于人为因素造成的误差，而且可以应用于电源供应困难的偏僻地区。同时，还对多通道波文比仪的温度传感器测量结果进行分析，得出温度传感器电阻值和环境温度之间的线形多项式关系。
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| 关 键 词： | 地表通量 波文比 传感器 通道 |
| 文章编号： | 1000-694X（2006）03-0473-05 |
| 收稿时间： | 2005-01-13 |
| 修稿时间： | 2005-04-01 |
Measurement of Ecosystem Surface Flux: Introduction of Multi-channel Bowen Ratio Measuring Instrument |
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| ZHANG Zheng-cai,ZHAO Ai-guo,DONG Zhi-bao.Measurement of Ecosystem Surface Flux: Introduction of Multi-channel Bowen Ratio Measuring Instrument[J].Journal of Desert Research,2006,26(3):473-477. |
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| Authors: | ZHANG Zheng-cai ZHAO Ai-guo DONG Zhi-bao |
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| Institution: | Key Laboratory of Desert and Desertification, Cold and Arid Regions Environmental and Engineering Research Institute, Chinese Academy of Sciences, Lanzhou 730000, China |
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| Abstract: | Surface flux is a very important ecosystem factor,however,there are several unconquerable problems in its measurement,such as it takes much time to measure many items,so,the measuring error is larger.The authors have introduced a new surface flux-measuring instrument-Multi-channel Bowen Ratio Instrument.The instrument can measure surface flux items simultaneous and synchronous,which can reduce contrived error.Moreover,it can be applied in isolated area without enough electric power.The paper also has studied on the relation between temperature-humidity sensor's resistance and environment temperature.We concluded that the relationship between sensor resistance and temperature is multinomial. |
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| Keywords: | surface flux Bowen ratio sensor channel |
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