%0 Journal Article
%T A CANOPY RADIATION MODEL FOR EVEN-AGED PLANTATION II. APPLICATION AND VALIDATION<br>人工同龄纯林冠层辐射场模拟模型 II.应用与验证
%A ZHANG Xiao_Quan
%A XU De_Ying
%A <br>张小全
%A 徐德应
%J 植物生态学报
%D 2002
%I Editorial Office of Chinese Journal of Plant Ecology
%X Measured radiation within the canopy of a Chinese fir plantation was used to validate an established canopy radiation model for even_aged plantations. Uncertainties and the impacts of leaf area density (LAD) distribution and scattered radiation were also calculated and analyzed with the model. Results show that there was no significant difference between measured and modeled instantaneous and daily radiation within canopy. Errors of simulations may result from irregular crown shape and crown size, grouped needles on shoots, etc. 2_D LAD distributions may improve the radiation simulation compared to averaged LAD. Simulated scattered radiation accounted for 3%-11% of total radiation, while low crown position and increased depth within the crown increased the relative proportion of scattered radiation.
%K Even_aged plantation
%K Canopy
%K Radiation
%K Model<br>同龄人工林
%K 冠层
%K 辐射
%K 模型
%U http://www.alljournals.cn/get_abstract_url.aspx?pcid=90BA3D13E7F3BC869AC96FB3DA594E3FE34FBF7B8BC0E591&jid=2F2173CCFF292BF447DC2681EA33BBAE&aid=189A144645B3CA14966F544DCE959E36&yid=C3ACC247184A22C1&vid=96C778EE049EE47D&iid=CA4FD0336C81A37A&journal_id=1005-264X&journal_name=植物生态学报&referenced_num=0&reference_num=0