Energy Conversion and Use in Forests: An Analysis of Forest Production in Terms of Radiation Utilisation Efficiency (ɛ)
Energy Conversion and Use in Forests: An Analysis of Forest Production in Terms of Radiation Utilisation Efficiency (ɛ)
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DOI：
10.1007/978-94-011-5446-8_11
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发表时间：
1997
期刊：
影响因子：
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通讯作者：
J. Landsberg;S. Prince;P. Jarvis;R. McMurtrie;R. Luxmoore;B. Medlyn
中科院分区：
文献类型：
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作者：
J. Landsberg;S. Prince;P. Jarvis;R. McMurtrie;R. Luxmoore;B. Medlyn
森林冠层吸收的光合有效太阳辐射（PAR）与森林干物质生产量之间的线性关系为森林生产量的估算提供了一个简单、稳健的单参数模型。该关系的斜率通常表示为π。该模型是从植物生产研究中发展起来的，具有良好的生理基础。它也是从遥感研究发展而来的。虽然APAR和冠层光合作用之间的关系在短时间内可能是高度可变的，但在较长的时间内，如数月或四季，它保持不变。
The linear relationship between the photosynthetically active solar radiation (PAR) absorbed by forest canopies (APAR) and the production of dry mass by forests provides a simple, robust model with only one parameter for the estimation of forest production. The slope of the relationship is normally denoted ɛ. The ɛ model has been developed from plant production studies and is soundly based physiologically. It has also evolved from remote sensing studies. Although the relationship between APAR and canopy photosynthesis may be highly variable over short periods, it remains constant over longer periods, such as months or seasons.