CO2 and H2O gas exchange of a triticale field .2. Micrometeorological flux studies and comparison with upscaling from porometry

被引：3

作者：

Ammann, C

Meixner, FX

Busch, J

Losch, R

机构：

[1] Biogeochemistry Department, Max Planck Institute for Chemistry, D-55020 Mainz

[2] Heinrich-Heine-University, Department of Geobotany, D-40225 Düsseldorf

来源：

PHYSICS AND CHEMISTRY OF THE EARTH, VOL 21, NO 3, MAY 1996: SOIL-VEGETATION-ATMOSPHERE TRANSFER AT DIFFERENT SCALES | 1996年 / 21卷 / 03期

关键词：

D O I：

10.1016/S0079-1946(97)85576-0

中图分类号：

P3 [地球物理学]; P59 [地球化学];

学科分类号：

0708 ; 070902 ;

摘要：

During June and July 1995 a field experiment was conducted at a 9 ha field of cereal crop (triticale) located in Bellheim, Germany, Our investigation focused on the exchange processes of H2O and CO2 and micrometeorological quantities within and above the triticale canopy. Data were collected by porometer measurements at leaf scale, and canopy scale flux measurements using eddy correlation techniques. Due to the senescent state of triticale, the CO2 exchange was generally small. The micrometeorological flux data are compared to estimates which were upscaled from porometer measurements. The results of one particular day are selected for presentation. The good agreement for both the CO2 and H2O fluxes, indicates that a relatively simple and direct upscaling procedure from single leaf porometry data may correctly describe the net exchange of an entire canopy. (C) 1997 Elsevier Science Ltd.

引用

页码：151 / 155

页数：5

共 14 条

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