摘要
为了了解青冈栎的生长规律,合理保护和培育青冈栎珍贵用材资源,对湖南省永顺县的43年生青冈栎林进行了样地调查,通过树干解析法、分层切割法所得的数据,探讨青冈栎的生长规律和生物量的分配格局。结果表明:树高连年生长量在第16年时与平均生长量相交;青冈栎胸径的连年生长量在第23年与平均生长量相交;青冈栎材积的连年生长量在第43年时与平均生长量仍没有相交,说明此时青冈栎尚没有达到数量成熟。43年生的青冈栎单株总生物量高达280.74 kg/株,地上部分和地下部分分别占总生长量的69.89%和30.11%,整株各器官的生物量大小排序为:树干>根茎>树枝>粗根>树皮>树叶>细根。
In order to understand the growth rule of Cyclobalanopsis glauca, protect and cultivate the rare resources, the 43 years old Cyclobalanopsis glauca stand in the Yongshun county, Hunan province, were selected as the sample-plot for surveying. The data of trunk analytic method and layered cutting method were used to discuss the growth rule and biomass distribution pattern of Cyclobalanopsis glauca. The results show that the current annual height increment and mean annual height increment were equal in the 16th year. In the 23th year, the current annual diameter at breast height （DBH） increment curve and mean annual DBH increment curve were met. The current annual volume increment curve and mean annual volume increment curve don＇t meet in the 43 years, which indicate that the forest of Cyclobalanopsis glauca don＇t reach its mature age. The total average biomass of 43 year old Cyclobalanopsis glauca was as high as 280.74 kg-strains^-1, and the aboveground part and tmderground part accounted for 69.89% and 30.11% of the total biomass respectively. The whole tree each organ biomass order, trunk 〉- root 〉 branches 〉 thick root 〉 bark 〉 leaf 〉 fine root.
出处
《中南林业科技大学学报》
CAS
CSCD
北大核心
2017年第3期57-62,共6页
Journal of Central South University of Forestry & Technology
基金
国家公益性行业科研专项"闽楠
青冈栎次生林提质增量关键技术研究与示范"(201504301)
关键词
青冈栎
生长规律
生物量
分布格局
Cyclobalanopsis glauca
growth rule
biomass
distribution pattern
