Snow damage in eucalypt forests

Cremer, K. W.

doi:10.1080/00049158.1983.10674377

Cited by 5 publications

(2 citation statements)

References 1 publication

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“…Then, we summarise the nature and impact of the damage experienced in 1981, and, finally, we conclude by recommending silvicultural strategies to prevent snow damage. Elsewhere (Cremer 1983) we present a brief report on the damage in the natural eucalypt forests, Revised manuscript received II January 1983 together with a review of weather conducive to snow damage in general and the occurrence of such conditions in Australia.…”

Section: Introductionmentioning

confidence: 99%

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Snow damage in Australian pine plantations

Cremer

Carter

Minko³

1983

Australian Forestry

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In June 1981 heavy falls of wet snow with air temperatures near 0°C and strong winds caused extraordinary damage in both pine plantations and native eucalypt forests in much of southeastern Australia, especially at altitudes between 700 m and 1200 m. Using data from a thinning trial, inventory plots, forestry records and extensive inspections of plantations and arboreta, a study was made of this damage to identify types, incidence and mechanisms of damage in Pinus radiata plantations, and their silvicultural implications.The most widespread but least injurious types of snow damage were the bending and breakage of branches. Uprooting was important in only one plantation. The main damage was the bending or breakage of stems. Some 500 ha of pine plantations have had to be salvaged by clearfelling and a further 1700 ha by heavy thinning, most of them about 15-30 m tall.Snow damage toP. radiata stems was found to be influenced by: (a) bending moments (due to imbalance of the loaded crowns and lean of the tree), (b) the height/diameter (HID) ratio of the stems, (c) the shelter enjoyed by the trees below the general canopy, (d) the height/spacing ratio (and hence the chance of one tree falling on another), (e) selective removal of the weaker, less stable individuals of the stand, (f) effects of growing space on diameter growth and hence HID ratios, and (g) effects of age on HID ratios and the intrinsic strength of the wood. Comparisons are made with other species.It is concluded that the HID ratio provides a valuable indication of the risk of snow damage, and that this risk can be largely controlled by spacing-thinning strategies. In plantations of P. radiata, trees should be allowed as much growing space from an early age as is compatible with other constraints; they should be established at no more than I 000 stems/ha and thinned by removal of the more slender trees before the dominants exceed 20 m in height.

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Section: Introductionmentioning

confidence: 99%

“…The meteorological conditions prevailing in the damaged areas during 24--26 June are not known precisely (Cremer 1983). Precipitation was very widespread in southeast Australia.…”

Section: Introductionmentioning

confidence: 99%

Snow damage in Australian pine plantations

Cremer

Carter

Minko³

1983

Australian Forestry

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Spatial response patterns of subtropical forests to a heavy ice storm: a case study in Poyang Lake Basin, southern China

et al. 2013

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Post-fire recruitment and resprouting of a threatened montane eucalypt

Zimmer

Allen²,

Smith³

et al. 2021

Aust. J. Bot.

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Changing climate is predicted to result in increased frequency and size of wildfires in south-eastern Australia. With increasing area burnt there is increased potential for entire species distributions to be burnt in a single fire event. This is particularly the case for range-restricted threatened species. Eucalyptus canobolensis (L.A.S.Johnson & K.D.Hill) J.T.Hunter is restricted to Mount Canobolas, New South Wales, Australia. In 2018, the majority of the E. canobolensis population was burnt by wildfire. One-year post-fire, we measured recruitment, resprouting and mortality of E. canobolensis. At higher fire severities, smaller trees were more likely to resprout from their bases only, as their stems were killed (i.e. ‘top kill’). Seedling regeneration only occurred in burnt plots. Our study demonstrates that E. canobolensis has a fire response typical of many eucalypts, characterised by seedling recruitment and larger trees resprouting epicormically, even after high-severity fire. Nevertheless, E. canobolensis response to repeat and short-interval fire remains unknown, and smaller trees appear to be vulnerable to top kill. Although much of Australia’s flora can respond to fire, this response is likely to be challenged as fire extents increase, especially if this is combined with increasing fire severity and/or frequency. These changes to the fire regime are a particular threat to species with restricted distributions.

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Snow damage in eucalypt forests

Cited by 5 publications

References 1 publication

Snow damage in Australian pine plantations

Snow damage in Australian pine plantations

Spatial response patterns of subtropical forests to a heavy ice storm: a case study in Poyang Lake Basin, southern China

Post-fire recruitment and resprouting of a threatened montane eucalypt

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