| 光皮桦苗期生长特性的初步研究 |
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| 引用本文： | 易咏梅,罗世家. 光皮桦苗期生长特性的初步研究[J]. 湖北民族学院学报(哲学社会科学版), 1998, 0(6) |
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| 作者姓名： | 易咏梅 罗世家 |
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| 作者单位： | 湖北民族学院林学系!恩施，445000，湖北民族学院林学系!恩施，445000 |
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| 摘 要： | 以一年生播种苗为研究对象，测定先皮桦苗高、地径、主根长及生物量等生长指标，用Logistic曲线方程拟合苗木高和地径生长，划分各生长阶段，揭示速生树种的苗期生长特性随时间序列的变化趋势。
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| 关 键 词： | 光皮桦 苗期 生长特性 |
STUDY ON GROWTH PERFORMANCE OF ANNUAL SEEDLING OF BETULA LUMINIFERA H. WINKL |
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| Yi Yongmei, Luo Shijia. STUDY ON GROWTH PERFORMANCE OF ANNUAL SEEDLING OF BETULA LUMINIFERA H. WINKL[J]. Journal of Hubei Institute for Nationalities(Philosophy and Social Sciences), 1998, 0(6) |
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| Authors: | Yi Yongmei Luo Shijia |
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| Abstract: | This paper deals with four growth indices. including shoot height, collar diameter. the length of main root and biomass of Betula luminifera annual seedings. Four stages(juvenile stage. early growth stage. rapid growth stage and late growth stage) are classified to describe the annual growth process of Betula luminifera according to the growth curves of its shoot height and collar diameter. which are fitted to the models. H = 85. 0653/(1 + e3.3912 - 0.6524t ) and D = 0. 8632/(1 +e3.8727-0.6054t) .The models are established to demonstrate the correlation with the growth performance of the fast - growing broadleaf species with time series. |
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| Keywords: | Betula luminifera seeding growth performance |
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