Review of the shelterwood system and its potential for application in Tasmanian eucalypt forests

Keenan, Rodney J.

doi:10.1080/00049158.1986.10674483

Cited by 9 publications

(4 citation statements)

References 11 publications

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“…Keenan (1986) noted that the level of overwood retained in a shelterwood system will be a compromise between the nature and degree of protection required, the climatic conditions prevailing on Downloaded by [New York University] at 14:47 11 April 2015 Effect of shelterwoods on stocking and growth of regeneration in dry high altitude Eucalyptus delegatensis forests 265 the site and the tolerance of the seedlings to intraspecific competition. This study would seem to suggest that no protection is required and hence no lower limit to retention exists.…”

Section: Discussionmentioning

confidence: 99%

Effect of shelterwoods on stocking and growth of regeneration in dry high altitudeEucalyptus delegatensisforests

Battaglia

Wilson

1990

Australian Forestry

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Partial logging was introduced to Eucalyptus delegatensis forests at altitudes over 600 m to reduce the incidence of high altitude growth check. Subsequently it has been used for a number of other management reasons. Experiments showed that whilst the initial stocking of regeneration increased with basal area of stems retained, later aged stocking and growth of regeneration could be severely depressed by the retention of basal area in excess of 12m' ha-•. Where shelterwoods are prescribed, the optimum level of basal area that should be retained will vary according to the annual rainfall of the site, but in general basal area should be reduced to the lowest level capable of providing the requisite protection and ensure full stocking. This figure can be expected to vary between 12 and 16 m'ha-•. These results have been incorporated into operational prescriptions for this forest type.

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Section: Discussionmentioning

confidence: 99%

Effect of shelterwoods on stocking and growth of regeneration in dry high altitudeEucalyptus delegatensisforests

Battaglia

Wilson

1990

Australian Forestry

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“…This system lures foresters because of its cost-effectiveness inharvesting as well as forthe rapid growth and regeneration of early successional, shadeintolerant species, which, because of their timber qualities and growth rates, are often preferred for wood production (Keenan & Kimmins, 1993). Likewise, "In uniform shelterwood system, a relatively even distribution of trees is retained in situations where regeneration is difficult to establish after clear-felling" (Keenan, 1986). The uniform shelterwood system consists of preparatory felling, seedling felling, secondary felling, and final felling (Manso et al, 2014).…”

Section: Silvicultural Systemmentioning

confidence: 99%

“…In 2000, about 16% of the productive forests in Europe were managed as coppice, covering a total area of about 23 million ha (Kofman & Unrau, 2017). Simple coppice refers to a low forest silvicultural system where the old crop is completely clearfelled with no reservation and regenerated Seedling felling opens up the stand to allow enough growing space for the establishment of regeneration from the seeds of trees retained (Keenan, 1986) Final felling is carried out for the removal of remaining retained trees when the area is completely stocked with established regenerated crops.…”

Section: Silvicultural Systemmentioning

confidence: 99%

Silvicultural Systems in the Restoration of Normal Forest: A Review

Ghimire,

Paudel,

Devkota

2022

Forestry: J. Inst. Fores. Nep.

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This paper review show different silvicultural systems help to restore normal forests, their usefulness and limitations. It is based on a desk review of various secondary data. Nature of ownership, management objectives, and site quality determine the silvicultural system to be adopted. In regular (even-aged) forest, normality is carried out by the clear-felling system, uniform shelterwood system and coppice system while irregular (uneven-aged) normal forest is managed using the selection system. As perfect normality is unattainable, the role of the manager is to reach maximum attainable position. It regulates the supply of forest products on sustainable basis as well as restoring the health and vitality of the forest.

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“…In experiments, eucalypt seed has performed best when planted at depths betweeñ 0.5 and 5 cm (Free 1951;Cremer 1965). Not surprisingly, considering the small size of the eucalypt seed, mortality is often greater where competing vegetation is already present, although partial shelter in commercial forests can moderate climatic conditions and improve establishment (Keenan 1986). Despite these limitations, eucalypt seeds are so numerous that some survive to replace existing stands, even though eucalypt seed loses viability usually within a year (Grose 1960).…”

Section: Basic Mechanisms Of Seed Dispersal and Seedling Establishmentmentioning

confidence: 99%

Going nowhere fast: a review of seed dispersal in eucalypts

Booth¹

2017

Aust. J. Bot.

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Abstract. Eucalypt species have several features that make them particularly well suited for climate change studies. A key assumption is that they have very limited powers of dispersal. If this is correct, it means that climate change analyses to the end of this century can concentrate mainly on assessing whether or not eucalypt species are likely to be able to survive at their existing sites. A recent major climate change study of more than 600 eucalypt species for the period 2014-2085 has used 5 km as a usual dispersal limit for the period to 2085, with the possibility of rare long-distance events. The review presented here considers how far natural stands of eucalypt species are likely to be able to migrate in the period to 2085. It is the first review to consider eucalypt seed dispersal as its major focus. It draws on evidence from millions of years ago to the present, and from eucalypt stands in Australia and around the world. Although rare long-distance events cannot be entirely ruled out, it is concluded that the great bulk of the evidence available indicates that the most likely potential dispersal rate is equivalent to about 1-2 m per year, i.e.~70-140 m in the period to 2085. Over decades, this is likely to occur as a series of stepwise events, associated with disturbances such as bushfires. However, limitations such as inadequate remnant eucalypt stands and extensive agricultural developments may reduce actual migration rates below even this modest potential.

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Review of the shelterwood system and its potential for application in Tasmanian eucalypt forests

Cited by 9 publications

References 11 publications

Effect of shelterwoods on stocking and growth of regeneration in dry high altitudeEucalyptus delegatensisforests

Effect of shelterwoods on stocking and growth of regeneration in dry high altitudeEucalyptus delegatensisforests

Silvicultural Systems in the Restoration of Normal Forest: A Review

Going nowhere fast: a review of seed dispersal in eucalypts

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