| 利用遥感信息研究区域冬小麦气孔导度的时空分布 |
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| 引用本文： | 张佳华,符淙斌,王长耀.利用遥感信息研究区域冬小麦气孔导度的时空分布[J].气象学报,2000,58(3):347-353. |
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| 作者姓名： | 张佳华 符淙斌 王长耀 |
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| 作者单位： | 1. 中国科学院大气物理研究所全球变化东亚研究中心,北京,100029
2. 中国科学院遥感应用研究所,北京,100101 |
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| 基金项目： | 国家基础研究发展规划项目!G1999043400，国家自然科学基金!39900084 |
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| 摘 要： | 气孔导度是影响作物蒸散和作物的光合速率进而影响作物产量的重要因子。文中通过利用NOAA－AVHRR数据首次对华北平原典型区冬小麦气孔导度分布进行了研究，给出了华北平原典型区冬小麦不同生长季节的气孔导度空间分布状况，为进一步研究田间水分和作物蒸散对产量影响以及建立遥感作物水分胁迫生物量模型和监测不同生育期的农田缺水等提供依据。
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| 关 键 词： | 遥感信息 华北平原 冬小麦 气孔导度 |
| 收稿时间： | 1999/3/10 0:00:00 |
| 修稿时间： | 1999/5/27 0:00:00 |
STUDY ON STOMATAL CONDUCIANCE DISTRIBUTION OF WINTER WHEAT IN REGIONAL SCALE USING REMOTE SENSING INFORMATION |
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| Zhang Jiahu,Fu Congbin and Wang Changyao.STUDY ON STOMATAL CONDUCIANCE DISTRIBUTION OF WINTER WHEAT IN REGIONAL SCALE USING REMOTE SENSING INFORMATION[J].Acta Meteorologica Sinica,2000,58(3):347-353. |
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| Authors: | Zhang Jiahu Fu Congbin and Wang Changyao |
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| Institution: | START, Institute of atmospheric physics, Chinese Academy of Sciences, Beijing, 100029;START, Institute of atmospheric physics, Chinese Academy of Sciences, Beijing, 100029;Institute of Remote Sensing application, Chinese Academy of Sciences, Beijing, 100101 |
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| Abstract: | The leaf stomatal movement, a physiological process, occurs within leaves but its influence on fluxes CO2, water vapor, and sensible heat extends to canopy, regional,and global scales. The theoretical and laboratory studies document that the interaction between leaf photosynthesis and stomatal conductance is obvious, thus stomatal conduc-tance is an important factor influencing on crop photosynthetic rate and crop net primary product, in special in the condition of crop water deficit. In the paper, based on the re-mote sensing information from NOAA-AVHRR and meteorological data, stomatal con-ductance distribution of winter wheat in typical area of North China plain have been studied. The stomatal conductance diagram in different development period has been presented. The developed stomatal conductance methods have been used to study crop and field moisture and estimate the winter wheat yield in typical research area of North China Plain. This will help us much better estimate NPP model influenced by water deficit and drought in the near further. |
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| Keywords: | Remote sensing information Winter wheat Stomatal conductance North China plain |
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