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| 典型森林生态系统总辐射和光合有效辐射长期观测中的仪器性能衰变和数据校正 | |
| 作者姓名： | Zhu ZL Sun XM Yu GR Wen XF Zhang YP Han SJ Yan JH Wang HM |
| 作者单位： | 1. 中国科学院地理科学与资源研究所生态系统网络观测与模拟重点实验室,北京,100101 2. 中国科学院西双版纳热带植物园,云南勐仑,666303 3. 中国科学院沈阳应用生态研究所森林与土壤生态国家重点实验室,沈阳,110164 4. 中国科学院华南植物园,广州,510650 |
| 基金项目： | 国家重点基础研究发展计划项目(2010CB833501-01); 国家自然科学基金项目(31070400)资助 |
| 摘 要： | 利用中国通量网( ChinaFLUX)4个森林台站(长白山、千烟洲、鼎湖山和西双版纳)2003-2008年总辐射和光合有效辐射(PAR)观测资料,研究了CNR1总辐射表和Li-190SB光量子仪在长期观测中可能出现的不确定性和仪器性能变化等问题.结果表明:98％以上的CNR1总辐射观测精度满足技术标准,但在西双版纳站,CNR1观测的总辐射(QCNR1)比高精度短波辐射仪CM11观测的总辐射(QCM11)平均低7％;虽然温度对CNR1观测的总辐射有一定影响,但其影响大都在仪器允许的精度范围内,在西双版纳站,CNR1除了受温度影响外,还受到热带雨林特有的季节性雾的影响;通过分析光合有效辐射数据(特别是其与总辐射比值)的长期变化发现,光量子仪Li-190SB的性能衰减较明显,平均年衰减率达4％左右,为了校正PAR仪器性能衰减产生的系统误差,本文尝试给出了PAR的后期补偿校正方法,该方法可基本消除由于野外长期使用所造成的Li-190SB性能衰减. |
| 关 键 词： | 总辐射 光合有效辐射 观测误差 辐射仪器性能 中国通量网 |
Radiometers performance attenuation and data correction in long-term observation of total radiation and photosynthetically active radiation in typical forest ecosystems in China |
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| Zhu ZL,Sun XM,Yu GR,Wen XF,Zhang YP,Han SJ,Yan JH,Wang HM.Radiometers performance attenuation and data correction in long-term observation of total radiation and photosynthetically active radiation in typical forest ecosystems in China[J].Chinese Journal of Applied Ecology,2011,22(11):2954-2962. | |
| Authors: | Zhu Zhi-Lin Sun Xiao-Min Yu Gui-Rui Wen Xue-Fa Zhang Yi-Ping Han Shi-Jie Yan Jun-Hua Wang Hui-Min |
| Institution: | ZHU Zhi-lin1,SUN Xiao-min1,YU Gui-rui1,WEN Xue-fa1,ZHANG Yi-ping 2,HAN Shi-jie3,YAN Jun-hua4,WANG Hui-min1(1Key Laboratory of Ecosystem Network Observation and Modeling,Institute of Geographic Sciences and Natural Resources Research,Chinese Academy of Sciences,Beijing 100101,China,2Xishuangbanna Tropical Botanical Garden,Menglun 666303,Yunnan,3State Key Laboratory of Forest and Soil Ecology,Institute of Applied Ecology,Shenyang 110164,4Sout... |
| Abstract: | Based on the total radiation and photosynthetically active radiation(PAR) observations with net radiometer(CNR1) and quantum sensor(Li-190SB) in 4 ChinaFLUX forest sites(Changbaishan,Qianyanzhou,Dinghushan,and Xishuangbanna) in 2003-2008,this paper analyzed the uncertainties and the radiometers performance changes in long-term and continuous field observation.The results showed that the 98% accuracy of the total radiation measured with CNR1(QCNR1) could satisfy the technical criterion for the sites except X... |
| Keywords: | total radiation photosynthetically active radiation observation error radiometer performance ChinaFLUX |
| 本文献已被 CNKI 万方数据 PubMed 等数据库收录！ | |