CAJ | 학술논문

通过对榆树、白桦、毛赤杨、落叶松等单木树种生长期内的叶面积指数测量，分析其生长规律，运用Logistic 生长模型拟合在生长期的叶面积指数，分析结果表明：落叶林各个回归模型的相关系数都达到了显著水平；各主要树种在生长季节叶面积指数呈逻辑斯蒂增长；不同树种，展叶盛期不同，基本上在7月初达到最大值；樟子松、红皮云杉、红松、冷杉常绿针叶单木在生长期内整体变化不大。
통과대유수、백화、모적양、락협송등단목수충생장기내적협면적지수측량，분석기생장규률，운용Logistic 생장모형의합재생장기적협면적지수，분석결과표명：락협림각개회귀모형적상관계수도체도료현저수평；각주요수충재생장계절협면적지수정라집사체증장；불동수충，전협성기불동，기본상재7월초체도최대치；장자송、홍피운삼、홍송、랭삼상록침협단목재생장기내정체변화불대。
@@@@An experiment was conducted to measure the Leaf Area Index (LAI) of Elm, Betula platyphylla, Alnus sibirica and Larix gme linii during the growth period for their growth rules.We used Logistic model to fit the leaf area index.The corre-ation coefficient of each regression model reaches the significant level.This method can provide the theoretical basis for digital simulation of the treegrowth .The leaf area index of principal species during the growth season is increased in the orm of Logistic.The different species have the different exhibition leaf stages and a maximum value occurs in earlyJuly . There is little change for Pinus sylvest risvarm ongolica, Picea koraie nsis, Pinusk oraiensis and Picea jezoensis evergreen co-niferous forest in the overall growth period.