Arid
DOI10.1016/j.foreco.2014.07.023
Growth, recruitment and attrition of Eucalyptus tree species in semi-arid temperate woodland
Taylor, Jennifer E.1; Ellis, Murray V.2; Rayner, Laura1
通讯作者Ellis, Murray V.
来源期刊FOREST ECOLOGY AND MANAGEMENT
ISSN0378-1127
EISSN1872-7042
出版年2014
卷号331页码:25-34
英文摘要

Conservation planning for many fauna relies on an ability to predict length of time lags to production of habitat requirements in restoration plantings or with natural regeneration. One key consideration is the growth rate of dominant trees, as tree age and size are linked to characteristics that provide fauna habitat, such as canopy cover, tree hollows and coarse woody debris. In this study we examined growth rate and mortality of Eucalyptus species for all individuals with diameter at breast height (DBH) >= 15 cm on forty one-ha sites in temperate semi-arid woodland in eastern Australia. Over five years (2008-2013) encompassing drought and flood, mean growth was <2.5 cm in DBH. Mixed effects models indicated that growth rate differed among species, and decreased with increasing senescence and greater initial foliage projective cover on the site. There was no link between initial tree DBH and growth rate for most species. Growth in DBH was similarly variable in large and small trees. Consequently increases in cross-sectional area, and hence biomass accumulation, are likely to be faster in larger trees. Growth of E. microcarpa, E. camaldulensis, E. blakelyi and E. conica did not significantly differ but was faster than that of E. populnea and E. melliodora. The random factors site and tree identity (for multi-stemmed trees) explained around 10% and 30% of the overall variability in growth rate respectively. Twelve trees (similar to 1%) died and 4 live trees were cut down and removed. Five (6.5%) of the 75 standing dead trees present in 2008 collapsed, and a further eight (10.5%) were cut down and removed by people. Forty saplings of four species with DBH < 15 cm in 2008 grew to DBH >= 15 cm by 2013, equating to a recruitment rate of <4%, but this occurred on only nine of the 40 sites. Our study suggests mortality rate is being met by recruitment rate at the regional scale, but recruitment was extremely patchy and may result in site scale extinctions. The growth rates measured indicate that trees planted to create fauna habitat may take centuries to reach sizes that would contain large nesting or roosting hollows for fauna. Crown Copyright (C) 2014 Published by Elsevier B.V. All rights reserved.


英文关键词Riparian woodland Plains woodland Remnant vegetation Mortality Recruitment
类型Article
语种英语
国家Australia
收录类别SCI-E
WOS记录号WOS:000343844200004
WOS关键词NEW-SOUTH-WALES ; HOLLOW-BEARING TREES ; INDIVIDUAL TREES ; RADIAL GROWTH ; AUSTRALIA ; DROUGHT ; PLANTATIONS ; ABUNDANCE ; SAVANNA ; DECLINE
WOS类目Forestry
WOS研究方向Forestry
资源类型期刊论文
条目标识符http://119.78.100.177/qdio/handle/2XILL650/182107
作者单位1.Australian Catholic Univ, Sch Sci, Sydney, NSW 2059, Australia;
2.Off Environm & Heritage, Populat Anal & Modelling Unit, Hurstville Bc, NSW 1481, Australia
推荐引用方式
GB/T 7714
Taylor, Jennifer E.,Ellis, Murray V.,Rayner, Laura. Growth, recruitment and attrition of Eucalyptus tree species in semi-arid temperate woodland[J],2014,331:25-34.
APA Taylor, Jennifer E.,Ellis, Murray V.,&Rayner, Laura.(2014).Growth, recruitment and attrition of Eucalyptus tree species in semi-arid temperate woodland.FOREST ECOLOGY AND MANAGEMENT,331,25-34.
MLA Taylor, Jennifer E.,et al."Growth, recruitment and attrition of Eucalyptus tree species in semi-arid temperate woodland".FOREST ECOLOGY AND MANAGEMENT 331(2014):25-34.
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