Výsledky vyhledávání - "Jansons Āris"

Akademický článek

Influence of spot mounding on height growth and tending of Norway spruce: case study in Latvia

Autor: Dzerina Baiba, Girdziusas Sigitas, Lazdina Dagnija, Lazdins Andis, Jansons Jurģis, Neimane Una, Jansons Āris

Publikováno v: Metsanduslikud Uurimused, Vol 65, Iss 1, Pp 24-33 (2016)

Norway spruce is commonly regenerated by planting and disc trenching is by far the most widely used soil preparation method in Latvia; however, in specific site conditions other methods might be beneficial. Therefore aim of our study was to assess in

Externí odkaz: https://doaj.org/article/216363086ae246d88d29af3166fb418f

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Akademický článek

Development of stem cracks in young hybrid aspen plantations

Autor: Šēnhofa Silva, Zeps Mārtiņš, Gailis Arnis, Kāpostiņš Rolands, Jansons Āris

Publikováno v: Metsanduslikud Uurimused, Vol 65, Iss 1, Pp 16-23 (2016)

Cracks expose wood to fungal infections that significantly affects wood quality, while rapid wound occlusion decreases probability of infections. Assessment of scars was done at four grade scale in three adjacent hybrid aspen trials at the age of 8-1

Externí odkaz: https://doaj.org/article/23ce22b650854745b62507c8f7150b89

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Akademický článek

Cumulative effect of needle cast on Scots pine saplings

Autor: Jansons Āris, Neimane Una, Polmanis Kaspars, Zaļuma Astra, Gaitnieks Tālis, Baumanis Imants

Publikováno v: Metsanduslikud Uurimused, Vol 65, Iss 1, Pp 5-15 (2016)

Premature needle cast, affecting the needles on one-year old shoots, thus shrinks the size of green crown of Scots pines, and can cause reduction of increment or even death of trees, especially during first years of their growth. Aim of our study was

Externí odkaz: https://doaj.org/article/3e5932ce250d4e9ca81ebb16d75ba8a7

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Akademický článek

Stem cracks of Norway spruce (Picea abies (L.) Karst.) provenances in Western Latvia

Autor: Zeltiņš Pauls, Katrevičs Juris, Gailis Arnis, Maaten Tiit, Jansons Jurģis, Jansons Āris

Publikováno v: Metsanduslikud Uurimused, Vol 65, Iss 1, Pp 57-63 (2016)

Stem cracks are damaging for timber quality and can reduce the monetary value of a tree both directly and indirectly: serving as gateway for fungal infections. Aim of the study was to assess the influence of tree dimensions and seed origin on the fre

Externí odkaz: https://doaj.org/article/a684d31f40644394aaf9de6509a6839d

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Akademický článek

Intra-annual radial growth of European beech – a case study in north easternmost stand in Europe

Autor: Krišāns Oskars, Puriņa Līga, Mesters Dāvis, Kāpostiņš Rolands, Rieksts-Riekstiņš Juris, Jansons Āris

Publikováno v: Metsanduslikud Uurimused, Vol 65, Iss 1, Pp 34-42 (2016)

Fagus sylvatica L. is one of the most important commercial tree species in Europe and its natural distribution range is expected to shift northwards due to climatic changes. Detailed information of factors affecting its growth is crucial as a basis f

Externí odkaz: https://doaj.org/article/f620bb4a26cc486c8ddb5dd3371e13b1

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