| 作物群体CO2通量和水分利用效率的快速测定 |
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| 引用本文： | 朱治林,孙晓敏,张仁华,苏红波,唐新斋.作物群体CO2通量和水分利用效率的快速测定[J].应用生态学报,2004,15(9):1684-1686. |
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| 作者姓名： | 朱治林 孙晓敏 张仁华 苏红波 唐新斋 |
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| 作者单位： | 中国科学院地理科学与资源研究所,北京,100101 |
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| 基金项目： | 中国科学院知识创新工程重大项目 (KZCX1 SW 0 1 0 1A)，中国科学院地理科学与资源研究所知识创新工程资助项目 (CXIOG E0 1 0 4 0 2 ) |
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| 摘 要： | In this paper, Eddy Correlation (EC) method was employed to measure the latent heat and CO2 flux density and to calculate Water Use Efficiency (WISE) of winter wheat community in Yucheng district, Shandong Province in 1997. The results showed that the CO2 flux density had an obvious diurnal change, with a maximum aboutl. 5 mg·s^-1·m^-2, which appeared at about 9 : 00-10 : 00 am in general. The WUE of wheat community presented a fall trend from morning to afternoon, and the CO2 flux density and WUE also had an obvious seasonal change, being lower in the early and late growth stages, and higher in the middle growth stage. The ranges of daily mean CO2 flux density and WUE were 0.2 - 0.9 mg·s^-1·m^-2 and 5 - 20 gCO2·kg^-1 1H2O, respectively.
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| 关 键 词： | 作物 群体 CO2通量 水分利用效率 冬小麦 |
| 文章编号： | 1001-9332(2004)09-1684-03 |
| 修稿时间： | 2002年10月23 |
Rapid measurements of CO2 flux density and water use efficiency of crop community |
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| ZHU Zhilin,SUN Xiaomin,ZHANG Renhua,SU Hongbo,TANG Xinzai.Rapid measurements of CO2 flux density and water use efficiency of crop community[J].Chinese Journal of Applied Ecology,2004,15(9):1684-1686. |
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| Authors: | ZHU Zhilin SUN Xiaomin ZHANG Renhua SU Hongbo TANG Xinzai |
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| Institution: | Institute of Geographical Sciences and Resources, Chinese Academy of Sciences, Beijing 100101, China. zhuzl@igsnrr.ac.cn |
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| Abstract: | In this paper, Eddy Correlation (EC) method was employed to measure the latent heat and CO2 flux density and to calculate Water Use Efficiency (WUE) of winter wheat community in Yucheng district, Shandong Province in 1997. The results showed that the CO2 flux density had an obvious diurnal change, with a maximum about 1.5 mg x s(-1) x m(-2), which appeared at about 9:00-10:00 am in general. The WUE of wheat community presented a fall trend from morning to afternoon, and the CO2 flux density and WUE also had an obvious seasonal change, being lower in the early and late growth stages, and higher in the middle growth stage. The ranges of daily mean CO2 flux density and WUE were 0.2-0.9 mg x s(-1) x m(-2) and 5-20 gCO2 x kg(-1) H2O, respectively. |
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| Keywords: | Photosynthesis of crop community CO 2 flux density Water use efficiency Winter wheat |
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