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作 者 ：张小全, 徐德应

期 刊 ：植物生态学报 2001年 25卷 5期 页码：609-615

关键词：同龄人工林；冠层；辐射；模型；

Keywords:Even-aged plantation, Canopy, Radiation, Model,

摘 要 ：充分考虑坡地人工林冠层结构特征和叶面积空间分布的异质性，分别相邻树冠遮荫和目的树冠遮荫对树冠内辐射场的影响，建立的人工林冠层辐射场模型，可模拟树冠内任意点，在一年内任一时刻内的辐射及其直接和散射分量，以及以1h为步长的日总辐射等，为人工林可持续经营和冠层光合生产力模拟奠定基础。

Abstract:A simulation model of canopy radiation was developed for the calculation of within-and between-tree shading. The model accounts for the canopy structure of an even-aged plantation on a sloping site and heterogeneity of leaf area density within tree crowns. It can be used to simulate instantaneous radiation at any point within crowns, the direct, diffuse and scattered fractions as well as daily radiation within 1 hour time steps. Canopy photosynthetic productivity can also be simulated with the radiation model

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