摘要
在辽西北田间试验条件下,对5个种源元宝槭苗木的生物量及其分配特征进行了对比研究。结果表明:不同种源元宝槭苗木生物量特征存在明显差异,辽宁四合城种源苗木叶、茎、根及单株生物量均最高;辽宁章古台次之;其他3个种源较低。植株生物量构成上,不同种源苗木均以叶生物量占比最大,超过50%,辽宁3个种源茎生物量占比显著高于根系,山东聊城和山西运城种源则正相反。山东聊城和山西运城种源根冠比最大,辽宁铁岭最小,辽宁四合城和章古台居中。辽宁四合城和章古台种源茎叶比显著高于其他3个种源。综合比较,辽宁四合城和章古台种源元宝槭比较适宜辽西北地区推广栽培。
The biomass characteristics of seedlings from five provenances of Acer truncatum were compared and studied under field test in Northwestern Liaoning Province.Result shows that there are significant differences in biomass characteristics of seedlings from different provenances.Among them,seedlings of Sihecheng Forest Farm in Liaoning Province have the highest biomass of leaves,stems,roots and whole-plants,followed by Zhanggutai Region of Liaoning Province,and the other three provenances are lower.In terms of plant biomass composition,leaf biomass account for the largest proportion of seedlings from different provenances and exceed 50%,the proportion of stem biomass of the three provenances in Liaoning Provinceis significantly higher than that of the root system,while the Liaocheng City in Shandong Province and Yuncheng City in Shanxi Province are opposite.Provenances of Liaocheng City of Shandong Procince and Yuncheng City of Shanxi Province have the largest root-shoot ratio,Tieling City in Liaoning Province is the smallest,and Sihecheng Forest Farm and Zhanggutai Region of Liaoning Province are centered.The stem-leaf ratio of provenances in Sihecheng Forest Farm and Zhanggutai Region of Liaoning Province is significantly higher than that of the other.Summary that Acer truncatum from provenances of Sihecheng Forest Farm and Zhanggutai Region of Liaoning Province will be suitable for popularization in NorthwesternLiaoning Province.
作者
曹宇
Cao Yu(Liaoning Research Institute of Sandy Land Control and Utilization,Fuxin 123000,China;Department of Horqin Sandy Land Ecosystem National Positioning Observatory,Zhanggutai,Liaoning Province,Fuxin 123000,China)
出处
《防护林科技》
2020年第3期25-27,共3页
Protection Forest Science and Technology
关键词
元宝槭
种源
生物量
叶
茎
根
Acer truncatum
provenances
biomass
leaf
root system
stem
作者简介
曹宇(1983-),男,辽宁本溪人,大学,高级工程师,现从事林业生态方面研究.
