摘要
以大叶栎1年生播种苗为研究对象,利用Logistic曲线方程对其地径和苗高年生长节律进行拟合,决定系数(R2)均大于0.99,达到极显著相关,经卡方(x2)测验也表明方程具有非常高的可靠性,因此利用Logistic曲线方程对大叶栎苗期地径和苗高年生长节律进行拟合是可行的。依Logistic曲线方程上两个曲率最大的点准确地将大叶栎苗期年生长进程划分为:渐增期、速生期和缓增期,并对其不同生长时期的生长特点进行分析,以确定最佳育苗技术措施,为高效培育大叶栎优质苗木提供科学理论依据。
Logistic equation was used to fit the annual growth dynamics of one year Castanopsis fissa seedlings. The results showed that the coefficient of determination （R2 ） was more than 0.99, indicating an extremely significant correlation. Chi- square （x2 ） tests also showed that the equation was highly reliable, According to the Logistic curve, three phases of accel- erating growth, fast growth and slow growth were accurately divided during the one year growth of C. fissa seedlings. In- tegrating the growth traits of each phase, the optimal measures for cultivating the seedlings could be found to improve the quality of C. fissa, seedlings.
出处
《林业科技开发》
2011年第5期36-39,共4页
China Forestry Science and Technology
基金
广西科技厅业务专项(编号:林科200805号)
