论文部分内容阅读
在全面调查的基础上选取44株福建省杉木王进行种质资源分析,结果表明:福建杉木王主要分布在杉木一般产区,闽西中心产区和闽东南边缘产区内杉木王的数量较少。福建杉木王平均分布海拔为759 m,平均活枝下高5.8 m,平均树高32.3 m,平均冠幅12.98 m,平均胸径1.35 m,平均单株材积18.68 m3,显示出很强的生长能力。杉木王样本间活枝下高、材积、冠幅等指标均呈现出较大的表型差异系数。与30年前的调查相比,福建杉木王生长量较低,生长速度缓慢,后期能否保持较高生长量有待进一步观察。
Based on a comprehensive survey, 44 Ficus przewalskii genera were selected for germplasm resources analysis. The results showed that the population of Fir cypress in Fujian was mainly distributed in the general producing area of Cunninghamia lanceolata. The population of Cunninghamia lanceolata in the central producing areas of Fujian and the southeastern Fujian less. The average distributing height of Fujian fir king is 759 m, the average live branch height is 5.8 m, the average tree height is 32.3 m, the average crown width is 12.98 m, the average breast diameter is 1.35 m, and the average single plant volume is 18.68 m3, showing a strong growth ability. Cunninghamia lanceolata samples live live branches under high, volume, crown and other indicators showed a larger phenotypic difference coefficient. Compared with the survey 30 years ago, Fujian fir king growth rate is low, slow growth, the latter can maintain a higher growth remains to be further observed.