作物群体CO_2通量和水分利用效率的快速测定
文献类型:中文期刊论文
作者 | 孙晓敏; 朱治林; 苏红波; 唐新斋 |
发表日期 | 2004 |
关键词 | Photosynthesis of crop community CO_2 flux density Water use efficiency Winter wheat |
ISSN号 | 1001-9332 |
摘要 | In this paper,Eddy Correlation (EC) method was employed to measure the latent heat and CO 2 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 CO 2 flux density had an obvious diurnal change,with a maximum about1.5 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 CO 2 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 CO 2 flux density and WUE were 0.2~0.9 mg·s -1 ·m -2 and 5~20 gCO 2·kg -1 H 2O,respectively. |
出处 | 应用生态学报
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期 | 9页:1684-1686 |
语种 | 中文 |
源URL | [http://ir.igsnrr.ac.cn/handle/311030/11842] ![]() |
专题 | 地理科学与资源研究所_历年回溯文献 |
推荐引用方式 GB/T 7714 | 孙晓敏,朱治林,苏红波,等. 作物群体CO_2通量和水分利用效率的快速测定. 2004. |
入库方式: OAI收割
来源:地理科学与资源研究所
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