摘要
以黑龙江省齐齐哈尔市龙江县错海实验林场32年生樟子松自由授粉家系子代测定林为试验材料,测定并分析其生长性状、含碳率及树干碳储量的家系遗传变异,估算各性状遗传增益,筛选含碳率高、树干碳储量大的优良家系。结果表明:树干材积、树干生物量和树干碳储量家系间存在丰富的遗传变异,变异系数分别为31.421%、31.998%和31.903%;木材基本密度和含碳率遗传变异较小,变异系数分别为2.725%和1.868%。相关分析结果表明,含碳率与树高、胸径、林木树干材积、树干生物量及树干碳储量之间均存在微弱的负相关关系;树干碳储量与树高、胸径、树干材积及树干生物量成极显著正相关。家系K70和A64入选为优良家系,2个家系的平均树干碳储量为19.903 kg,比家系平均树干碳储量高出36.89%。
The 32-years-old Pinus sylvestris var. mongolicaopen-pollinated progeny testing forest were sampled asthe research object, which set on the Longjiang Cuohai Experimefamily genetic variation of growth traits, carbon content and stemntal Station in Heilongjiang province, to analyze thecarbon storage, and estimate their genetic gain, thenfilter the superior families of high carbon storage and carbon density. The results showed that there were plentiful geneticvariation in trunk volume, biomass and carbon storage and the variation coefficient was 31.421%, 31.998% and31. 903%, respectively. The genetic variations in wood basic density, carbon content was relatively small, and the varia-tion coefficient was 2. 725% and 1.868%. There was weak negative correlation between carbon content with the othertraits. Trunk carbon storage was significantly positive correlated with tree height, diameter at breast height （DBH） vol-ume and trunk biomass. Synthesize the above results, KT0 and A64 had been chosen as the superior families. The meanvalue of carbon storage was 19. 903 kg, which was higher than mean value of all families by 36. 89%.
出处
《西南林业大学学报（自然科学）》
CAS
北大核心
2016年第1期57-62,共6页
Journal of Southwest Forestry University：Natural Sciences
基金
中国林业科学院林业新技术所基本科研业务费专项(CAFINT2015C15)资助
中国林业科学院基本科研业务费专项(CAFYBB2014QA027)资助
关键词
樟子松
子代测定林
生长性状
含碳率
碳储量:遗传变异
Pinus sylvestris var. mongolica
progeny testing forest
growth traits
carbon density
carbon stor-age
genetic variation
