CANOPY REFLECTANCE, PHOTOSYNTHESIS AND TRANSPIRATION
CANOPY REFLECTANCE, PHOTOSYNTHESIS AND TRANSPIRATION
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DOI：
10.1080/01431168508948283
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发表时间：
1985-01-01
影响因子：
3.4
通讯作者：
SELLERS, PJ
中科院分区：
文献类型：
--
作者：
SELLERS, PJ
利用辐射传输的双流近似模式计算了半球冠层在可见光和近红外波段的反射率。光合作用和气孔阻力的简单叶片模型集成在叶方向和冠层深度，以获得冠层光合作用和散装气孔或冠层阻力的估计。近红外和可见光反射率的比值被预测为最小冠层阻力和光合能力的近线性指标，但叶面积指数或生物量的预测较差。
A two-stream approximation model of radiative transfer is used to calculate values of hemispheric canopy reflectance in the visible and near-infrared wavelength intervals. Simple leaf models of photosynthesis and stomatal resistance are integrated over leaf orientation and canopy depth to obtain estimates of canopy photosynthesis and bulk stomatal or canopy resistance. The ratio of near-infrared and visible reflectances is predicted to be a near linear indicator of minimum canopy resistance and photosynthetic capacity but a poor predictor of leaf area index or biomass.