气候变化领域集成服务门户(CCPortal): Matching site-suitable poplars to rotation length for optimized productivity

CCPortal

DOI	10.1016/j.foreco.2019.117670
	Matching site-suitable poplars to rotation length for optimized productivity
	Ghezehei S.B.; Wright J.; Zalesny R.S.; Jr.; Nichols E.G.; Hazel D.W.
发表日期	2020
ISSN	0378-1127
卷号	457
英文摘要	Diversity of applications, productivity potential, broad suitability and genetic variations make Populus a valuable fast-growing genus. Our goal was to assess if clonal site-suitability varies with rotation-length. We examined survival, growth (height, diameter at breast height) and estimated stem and total-wood (stem and branches) biomass of 89 clones near Fountain, North Carolina (35°42′7.52″ N, 77°34′35.04″ W) in the coastal southeastern USA at four- and eight-year rotations. The unsuitability of some clones was evident at early age while other clones became less suitable with stand age. Specifically, most mortality occurred by year-four, yet 25% clones experienced 17 to 50% mortality at older ages. Clone ‘379’ was the most site-suitable with 100% survival and 141.3 kg total-wood per tree (approximately 47.5 Mg ha−1 yr−1). Moreover, several clones with low survival produced high per-hectare biomass. Biomass (stem and total-wood) rankings changed between four- and eight-year rotations with only three top-ten clones in year-four (‘379’, ‘402’, ‘449’) in the top-ten of year-eight and two top-ten clones in year-eight (‘379’, ‘402’) also in the top-ten of year-four. Clonal productivity differences increased by 25 to 836% with age. Clones of TD (Populus trichocarpa Torr and Gray × P. deltoids Barts Ex Marsh) and DD (P. deltoides × P. deltoides) genotypes were affected by wood infection (Septoria musiva) indicating that selection based on disease resistance should be performed at clonal level. Hence, for productivity-focused stands, site-suitable clones should be selected by productivity first, then narrowed by survival and rotation length. Changes in the most ‘site-suitable’ clones can be expected between longer and shorter rotations. © 2019 Elsevier B.V.
关键词	Biomass Forestry Productivity Rotation Wood Diameter-at-breast heights Disease resistance Genetic variation Populus Populus trichocarpa Rotation lengths Selection based Site-suitability Cloning biomass clonal organism deciduous forest design method forestry production genetic variation growth mortality optimization survival Biomass Forestry Populus Productivity Rotation Wood North Carolina United States Mycosphaerella populorum Populus Populus deltoides Populus trichocarpa
语种	英语
来源机构	Forest Ecology and Management
文献类型	期刊论文
条目标识符	http://gcip.llas.ac.cn/handle/2XKMVOVA/133124
推荐引用方式 GB/T 7714	Ghezehei S.B.,Wright J.,Zalesny R.S.,et al. Matching site-suitable poplars to rotation length for optimized productivity[J]. Forest Ecology and Management,2020,457.
APA	Ghezehei S.B.,Wright J.,Zalesny R.S.,Jr.,Nichols E.G.,&Hazel D.W..(2020).Matching site-suitable poplars to rotation length for optimized productivity.,457.
MLA	Ghezehei S.B.,et al."Matching site-suitable poplars to rotation length for optimized productivity".457(2020).