麦田CO_2通量密度和水分利用效率研究

中国农业气象

麦田CO_2通量密度和水分利用效率研究

于沪宁;刘萱;

中国科学院国家计划委员会地理研究所,中国科学院国家计划委员会地理研究所,

出版日期:1990-09-10 发布日期:1990-09-10

RESEARCH ON THE CO_2 FLUX DENSITY AND THE WATER USE EFFICIENCY OF WHEAT CANOPY

Yu Huning Liu Xuan(Agro-ecosystems Experiment Station,Inst.of Geography,Academia Sinica)

Online:1990-09-10 Published:1990-09-10

摘要/Abstract

摘要： 本文利用红外CO_2分析系统,对麦田CO_2浓度和通量密度进行观测。计算了光合作用效率和水分利用效率,分析了CO_2通量密度与净辐射、风、交换系数之间的关系,取得了满意的结果。

关键词: NULL

Abstract: The CO_2 content in the air and the wheat canopy and the CO_2 flux density of wheat canopy has been measured with a infrared CO_2 analyser system. Photosynthetic rate and the water use efficiency of the canopy has been calculated in this paper. The relationship of CO_2 flux density between net radiation, wind speed and the exchange coefficient has been analysed and the results are quite satisfy.

Key words: NULL, NULL

于沪宁;刘萱;. 麦田CO_2通量密度和水分利用效率研究[J]. 中国农业气象.

Yu Huning Liu Xuan(Agro-ecosystems Experiment Station,Inst.of Geography,Academia Sinica). RESEARCH ON THE CO_2 FLUX DENSITY AND THE WATER USE EFFICIENCY OF WHEAT CANOPY[J]. Chinese Journal of Agrometeorology.