气候变化领域集成服务门户(CCPortal): Effect of thinning and fertilizer on growth and allometry of Eucalyptus marginata

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DOI	10.1016/j.foreco.2020.118594
	Effect of thinning and fertilizer on growth and allometry of Eucalyptus marginata
	Bhandari S.K.; Veneklaas E.J.; McCaw L.; Mazanec R.; Whitford K.; Renton M.
发表日期	2021
ISSN	0378-1127
卷号	479
英文摘要	Jarrah (Eucalyptus marginata) forest is one of the most widespread native forest types of south west Western Australia (SWWA) and provides timber, firewood, wildlife habitat, water production, catchment protection and recreation. To inform management aimed at optimizing these values, a thinning trial in even aged regrowth forest was commenced in 1965. A second thinning and N and P fertilizer treatment was applied in 1986. The effect of thinning and fertilizer on tree and stand level growth and allometry was evaluated. Thinning resulted in higher values of under bark diameter at breast height (DBHUB) and tree height, and lower values of height diameter ratio (HDR), stand basal area under bark (BAUB) and stem number per unit area. Growth of DBHUB increased with a decrease in stand density. Growth of stand BAUB peaked at intermediate stand densities. Fertilizer increased growth in DBHUB and stand BAUB. Height growth was significantly greater in thinned plots. Thinning had a significant effect on the allometric relation between diameter at breast height over bark (DBHOB) and each of height, HDR and crown width (CW) while fertilizer had a significant effect on the allometric relation between DBHOB and each of height and HDR. Height and CW increased with an increase in DBHOB but HDR decreased. Larger sized trees resulting from thinning and addition of fertilizer are likely to provide a higher volume of timber, firewood, fruits (important food for threatened cockatoos), and improved visual amenity. As thinning had a positive effect on diameter and height growth and self-thinning in jarrah is relatively low (0.20% yr−1), thinning may be a valuable management tool to accelerate development of larger trees which can be beneficial for both timber production and conservation. © 2020 Elsevier B.V.
英文关键词	Allometry; Fertilizer; Growth; Stand density; Thinning
语种	英语
scopus关键词	Biology; Catchments; Fertilizers; Timber; Allometric relation; Diameter-at-breast heights; Eucalyptus marginata; N and P fertilizer; Stand basal area; Timber production; Western Australia; Wildlife habitats; Forestry; allometry; basal area; catchment; dicotyledon; fertilizer; fertilizer application; forest management; forestry production; growth; management practice; thinning; timber; wild population; Biology; DBH; Eucalyptus Marginata; Fertilizers; Forestry; Growth; Thinning; Australia; Western Australia; Cacatuidae; Eucalyptus marginata
来源期刊	Forest Ecology and Management
文献类型	期刊论文
条目标识符	http://gcip.llas.ac.cn/handle/2XKMVOVA/154896
作者单位	School of Biological Sciences, University of Western Australia, Perth, Australia; Department of Biodiversity, Conservation and AttractionsWestern Australia, Australia
推荐引用方式 GB/T 7714	Bhandari S.K.,Veneklaas E.J.,McCaw L.,et al. Effect of thinning and fertilizer on growth and allometry of Eucalyptus marginata[J],2021,479.
APA	Bhandari S.K.,Veneklaas E.J.,McCaw L.,Mazanec R.,Whitford K.,&Renton M..(2021).Effect of thinning and fertilizer on growth and allometry of Eucalyptus marginata.Forest Ecology and Management,479.
MLA	Bhandari S.K.,et al."Effect of thinning and fertilizer on growth and allometry of Eucalyptus marginata".Forest Ecology and Management 479(2021).