Consequences of injury caused by timber harvesting machines on the growth and decay of spruce (Picea abies (L.) Karst.)

Isomäki, Antti; Kallio, Tauno

doi:10.14214/aff.7570

Cited by 64 publications

(63 citation statements)

References 4 publications

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“…germinating on and colonizing freshly created stump surfaces and wounds (Rishbeth 1951a, Isomäki andKallio 1974). Trees surrounding a diseased tree or stump can become infected through secondary spread of fungal mycelia that grows across root grafts and contacts (Rishbeth 1951b).…”

Section: Introductionmentioning

confidence: 99%

Control efficacy of stump treatment and influence of stump height on natural spore infection by Heterobasidion spp. of precommercial thinning stumps of Norway spruce and birch

Gunulf¹,

Carthy²,

Rönnberg³

2012

Silva Fenn.

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An alternative precommercial thinning technique results in trees being cut higher up the stem compared to the normal method using a brush saw. The aims of this study were to investigate if primary infection of Heterobasidion spp. on precommercial thinning stumps of Norway spruce and birch is influenced by stump height and to test the control efficacy of stump treatment with Phlebiopsis gigantea on precommercial thinning stumps of Norway spruce. Small Norway spruce and birch trees were felled on five sites in southern Sweden and their stumps subjected to natural spore infection. For each species, two treatments of stump height were created: 15 and 100 cm. Half of the Norway spruce stumps were treated with P. gigantea. After two months, 896 stumps were sampled and infection by Heterobasidion spp. was quantified. The height of stumps did not significantly influence infection frequency or size of infection on either tree species. Untreated Norway spruce stumps had an infection frequency of 55% while 31% of the treated stumps were infected. The control efficacy of stump treatment in terms of reduced relative infected area was 61-65%. The area occupied by Heterobasidion spp. on birch stumps was generally small, on average 0.4 cm 2 per infected stump, although 15% of the stumps were infected. The risk of primary infection in Norway spruce dominated stands should be considered when precommercial thinning is conducted but the control efficacy and economy of stump treatment warrants further investigation before practical recommendations can be made.

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Section: Introductionmentioning

confidence: 99%

Control efficacy of stump treatment and influence of stump height on natural spore infection by Heterobasidion spp. of precommercial thinning stumps of Norway spruce and birch

Gunulf¹,

Carthy²,

Rönnberg³

2012

Silva Fenn.

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“…It is also an important pathogen of Norway spruce (Picea abies (L.) Karst. ), able to cause decay in living trees after infecting stems through open wounds (Isomäki and Kallio 1974, Pawsey and Stankovicova 1974a, El Atta and Hayes 1987. In nature, S. sanguinolentum is spread by airborne basidiospores that often are produced parthenogenetically (Robak 1942).…”

Section: Introductionmentioning

confidence: 99%

Spread of Stereum sanguinolentum vegetative compatibility groups within a stand and within stems of Picea abies

Vasiliauskas¹,

Stenlid²

1998

Silva Fenn.

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A total of 57 naturally established Stereum sanguinolentum isolates was obtained from artificially wounded Picea abies stems in a forest area of 2 ha in Lithuania. Somatic incompatibility tests revealed 27 vegetative compatibility groups (VCGs) that contained 1-10 isolates. There was no spatial clustering of S. sanguinolentum VCGs within the forest area. The extent of S. sanguinolentum decay was analysed in 48 P. abies stems, 9-26 cm in diameter at breast height. Within 7 years of wounding, the length of S. sanguinolentum decay column in stems was 107-415 cm (291.5±77.3 cm on average), lateral spread of the fungus at the butt was 38-307 cm 2 (142.3±66.8 cm 2 ) and decayed proportion of the stem cross-section at the wound site (the butt) was 3-84 % (36.8±19.7 %). In average, S. sanguinolentum VCG that infected 10 trees exhibited more slow growth inside the stem than VCGs that infected only one tree, and vertical growth varied to a greater extent within this VCG than among different VCGs. Correlation between stem diameter and vertical spread of S. sanguinolentum was not significant (r = -0.103). Despite uniformity of debarked area on all stems 7 years ago (300 cm 2 ), open wound sizes on individual trees at the time of study were between 97-355 cm 2 (215.1±59.2 cm 2 ) indicating large differences in wound healing capacity.

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“…Manjše poškodbe namreč le mestoma prekinejo kambij. V smrekovih sestojih v Skandinaviji (Isomäki A. in Kallio T., 1974cit. po Vasiliauskas R., 2001) so po poškodbah korenovca ugotovili 35 do 40 % zmanjšanje višinskega in debelinskega prirastka, poškodbe debla pa so prirastek zmanjšale za 15 %.…”

Section: Poškodbe Sestojaunclassified

“…V raziskavi, izvedeni v listnatih drogovnjakih in debeljakih, ugotavljajo (Žagar Z., 1982), da je odstotek poškodovanosti pri letni sečnji in spravilu za 13 % večji, kot pri delu pozimi. Do podobnih zaključkov so prišli tudi tuji avtorji, ki poročajo, da so zimske poškodbe manjše in ne tako globoke, kakor v poletnih sečnjah (Isomäki A. in Kallio T., 1974). Podobno ugotavljajo tudi v Švici (Butora A. in Schwager G., 1986), kjer so ugotovili, da je v poletnih sečnjah pogostost poškodb za 25 % večja, prav tako pa so pri spravilu ugotovili za 55 %, pri sečnji za 40 % večje poškodbe kot pri zimski sečnji.…”

Section: Vpliv čAsa Izvedbe Del Na Poškodbe Sestojaunclassified

Poškodbe sestojev pri uporabi tehnologije strojne sečnje v Sloveniji

Mihelič¹

2017

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Consequences of injury caused by timber harvesting machines on the growth and decay of spruce (Picea abies (L.) Karst.)

Cited by 64 publications

References 4 publications

Control efficacy of stump treatment and influence of stump height on natural spore infection by Heterobasidion spp. of precommercial thinning stumps of Norway spruce and birch

Control efficacy of stump treatment and influence of stump height on natural spore infection by Heterobasidion spp. of precommercial thinning stumps of Norway spruce and birch

Spread of Stereum sanguinolentum vegetative compatibility groups within a stand and within stems of Picea abies

Poškodbe sestojev pri uporabi tehnologije strojne sečnje v Sloveniji

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