Oskars Krišāns

ORCID id: https://orcid.org/0000-0003-3315-7701

Publikāciju saraksts
List of publications

  • Šņepsts G., Krišāns O., Matisons R., Seipulis A., Jansons Ā. 2022. Cervid Bark-Stripping Is an Explicit Amplifier of Storm Legacy Effects in Norway Spruce (Picea abies (L.) Karst.) Stands. Forests, 13(11), 1947; https://doi.org/10.3390/f13111947 
  • Bāders E., Romāns E., Desaine I., Krišāns O., Seipulis A., Donis J., Jansons Ā. 2022. An Integration of Linear Model and ‘Random Forest’ Techniques for Prediction of Norway Spruce Vitality: A Case Study of the Hemiboreal Forest, Latvia. Remote Sensing, 14(9), 2122; https://doi.org/10.3390/rs14092122
  • Krišāns O., Matisons R., Vuguls J., Bāders E., Rust S., Elferts D., Saleniece R., Jansons Ā. 2022. Regularly planted rather than natural understory of Norway spruce (Picea abies H. Karst.) contributes to the individual stability of canopy silver birch (Betula pendula Roth.). Forests, 13(6), 942; https://doi.org/10.3390/f13060942
  • Krišāns O., Matisons R., Vuguls J., Seipulis A., Elferts D., Samariks V., Saleniece R., Jansons Ā. 2022. Soil type rather than freezing determines the size of soil-root plate of silver birch (Betula pendula Roth.) in the eastern Baltic region. Sustainability, 14(12), 7332; https://doi.org/10.3390/su14127332
  • Krišāns O., Matisons R., Vuguls J., Seipulis A., Samariks V., Saleniece R., Jansons Ā. 2022. The Destructive Static Tree-Pulling Test Provides Reliable Estimates of the Soil–Root Plate of Eastern Baltic Silver Birch (Betula pendula Roth.). Plants, 11(11), 1509; https://doi.org/10.3390/plants11111509
  • Desaine I., Bāders E., Romāns E., Krišāns O., Seipulis A., Jansons Ā. 2022. The detection of disturbance effects of Norway spruce (Picea abies (L.) Karst.) in UAV multispectral imagery. ISPRS Annals of the Photogrammetry, Remote Sensing and Spatial Information Sciences, V-3-2022, 689-695; https://doi.org/10.5194/isprs-annals-V-3-2022-689-2022
  • Krišāns O., Matisons R., Vuguls J., Rust S., Elferts D., Seipulis A., Saleniece R., Jansons Ā. 2022. Silver Birch (Betula pendula Roth.) on Dry Mineral Rather than on Deep Peat Soils Is More Dependent on Frozen Conditions in Terms of Wind Damage in the Eastern Baltic Region. Plants, 11(9), 1174; https://doi.org/10.3390/plants11091174 
  • Krišāns O., Čakša L., Matisons R., Rust S., Elferts D., Seipulis A., Jansons Ā. 2022. A Static Pulling Test Is a Suitable Method for Comparison of the Loading Resistance of Silver Birch (Betula pendula Roth.) between Urban and Peri-Urban Forests. Forests, 13(1), 127; https://doi.org/10.3390/f13010127 
  • Matisons R., Elferts D., Krišāns O., Schneck V., Gärtner H., Wojda T., Kowalczyk J., Jansons Ā. 2021. Nonlinear Weather–Growth Relationships Suggest Disproportional Growth Changes of Norway Spruce in the Eastern Baltic Region. Forests, 12(6), 661; https://doi.org/10.3390/f12060661
  • Matisons R., Krišāns O., Jansons Ā., Kondratovičs T., Elferts D., Ievinsh G. 2021. Norway Spruce Seedlings from an Eastern Baltic Provenance Show Tolerance to Simulated Drought. Forests, 12(1), 82; https://doi.org/10.3390/f12010082
  • Matisons R., Elferts D., Krišāns O., Schneck V., Gärtner H., Baste A., Wojda T., Kowalczy J., Jansons Ā. 2021. Non-linear regional weather-growth relationships indicate limited adaptability of the eastern Baltic Scots pine. Forest Ecology and Management, 479, 118600; https://doi.org/10.1016/j.foreco.2020.118600
  • Samariks V., Īstenais N., Seipulis A., Miezīte O., Krišāns O., Jansons Ā. 2021. Root-Soil Plate Characteristics of Silver Birch on Wet and Dry Mineral Soils in Latvia. Forests, 12(1), 20; https://doi.org/10.3390/f12010020
  • Krišāns O., Matisons R., Kitenberga M., Donis J., Rust S., Elferts D., Jansons Ā. 2021. Wind Resistance of Eastern Baltic Silver Birch (Betula pendula Roth.) Suggests Its Suitability for Periodically Waterlogged Sites. Forests, 12(1), 21; https://doi.org/10.3390/f12010021
  • Baders E., Krišans O., Donis J., Elferts D., Jaunslaviete I., Jansons A. 2020. Norway spruce survival rate in two forested landscapes, 1975–2016. Forests, 11(11), 745; https://doi.org/10.3390/f11070745
  • Donis J., Saleniece R., Krisans O., Dubrovskis E., Kitenberga M., Jansons A. 2020. A Financial Assessment of Windstorm Risks for Scots Pine Stands in Hemiboreal Forests. Forests, 11(5), 566; https://doi.org/10.3390/f11050566
  • Krišāns O. 2020. Parastās egles (Picea abies (L.) H. Karst.) vēja noturības izmaiņas sakņu trupes un stumbra mizas bojājumu ietekmē / The effect of root rot and bark-stripping on wind stability of Norway spruce (Picea abies (L.) H. Karst.). Promocijas darbs mežzinātņu doktora grāda iegūšanai / Thesis (Dr. silv.). LVMI Silava / LSFRI Silava
  • Krisans O., Matisons R., Rust S., Burnevica N., Bruna L., Elferts D., Kalvane L., Jansons A. 2020. Presence of root rot reduces stability of Norway spruce (Picea abies): Results of static pulling tests in Latvia. Forests, 11(4), 416; https://doi.org/10.3390/f11040416
  • Krisans O., Saleniece R., Rust S., Elferts D., Kapostins R., Jansons A., Matisons R. 2020. Effect of Bark-Stripping on Mechanical Stability of Norway Spruce. Forests, 11(3), 357; https://doi.org/10.3390/f11030357
  • Krisans O., Samariks V., Matisons R., Jansons A. 2020. Model of above-ground biomass distribution of Norway spruce (Picea abies L. (Karst.)). BioResources, 15(2), 4314-4322; https://doi.org/10.15376/biores.15.2.4314-4322
  • Krišāns O., Samariks V., Donis J., Jansons Ā. 2020. Structural root-plate characteristics of wind-thrown Norway spruce in hemiboreal forests of Latvia. Forests, 11(11), 1143; https://doi.org/10.3390/f11111143
  • Matisons R., Kārkliņa A., Krišāns O., Elferts D., Jansons Ā. 2020. Species composition modulates seedling competitiveness of temperate tree species under hemiboreal conditions. Forest Ecology and Management, 478, 118499; https://doi.org/10.1016/j.foreco.2020.118499
  • Samariks V., Krisans O., Donis J., Silamikele I., Katrevics J., Jansons A. 2020. Cost-benefit analysis of measures to reduce windstorm impact in pure Norway spruce (Picea abies L. Karst.) stands in Latvia. Forests, 11(5), 576; https://doi.org/10.3390/f11050576
  • Matisons R., Krišāns O., Kārkliņa A., Adamovičs A., Jansons Ā., Gärtner H. 2019. Plasticity and climatic sensitivity of wood anatomy contribute to performance of eastern Baltic provenances of Scots pine. Forest Ecology and Management, 452, 117568; https://doi.org/10.1016/j.foreco.2019.117568
  • Samariks V., Krišāns O., Jansone B., Jansons Ā. 2019. The influence of meteorological factors on stem radial variation of the Norway spruce and black alder: Case study. Sylwan, 163(10), id mfnfa
  • Šņepsts G., Donis J., Strēlnieks K., Krišāns O., Desaine I., Adamovičs A. 2019. Post-storm regeneration of Norway spruce. In: Proceedings of International Conference "Research for Rural Development 2019". Jelgava: LUA, Vol. 1, p. 71-75; https://doi.org/10.22616/rrd.25.2019.011
  • Bāders E., Lūkins M., Zariņš J., Krišāns O., Jansons A., Jansons J. 2018. Recent land cover changes in Latvia. In: Proceedings of 24th International Scientific Conference "Research for Rural Development 2018". Jelgava: LUA, Vol. 1, p. 34-39; https://doi.org/10.22616/RRD.24.2018.005
  • Jansons Ā., Matisons R., Baliuckas V., Purina L., Krišāns O., Jansons J., Baumanis I. 2018. Performance variation of lodgepole pine provenances in Latvia. Silva Fennica, 52(5), 10014; https://doi.org/10.14214/sf.10014
  • Šņepsts G., Bigača Z., Desaine I., Jansons J., Donis J., Strēlnieks K., Adamovičs A., Krišāns O. 2018. Characteristics of damages in Norway spruce stands. In: Proceedings of 24th International Scientific Conference "Research for Rural Development 2018". Jelgava: LUA, Vol. 1, p. 65-71; https://doi.org/10.22616/rrd.24.2018.010
  • Dzenis J., Krišāns O., Katrevičs J., Adamovičs A. 2017. Intra-seasonal development of radial increment of Picea abies in Latvia. In: Proceedings of 23th International Scientific Conference "Research for Rural Development 2017". Jelgava: LUA, Vol. 1, p. 86-93; https://doi.org/10.22616/rrd.23.2017.013
  • Krišāns O., Kāpostiņš R., Adamovičs A., Katrevičs J., Jansons Ā. 2017. Parastās egles Picea abies (L.) Karst. radiālās augšanas dinamika Latvijā. Grām.: Starptautiskās zinātniski praktiskās konferences "Zinātne un prakse nozares attīstībai" tēzes. Jelgava: LLU, LVMI Silava, 15.-16. lpp.
  • Matisons R., Bardulis A., Kanberga-Silina K., Krisans O., Jansons A. 2017. Sap flow in xylem of mature Norway spruce: A case study in northwestern Latvia during the season of 2014–2015. Baltic Forestry, 23(2), 477-481
  • Jansons Ā., Matisons R., Krišāns O., Džeriņa B., Zeps M. 2016. Effect of initial fertilization on 34-year increment and wood properties of Norway spruce in Latvia. Silva Fennica, 50(1), 1346; https://doi.org/10.14214/sf.1346
  • Krišāns O., Kalniņš J., Puriņš M., Kāpostiņš R., Jansons Ā. 2016. Influence of altered precipitation regime on morphology of saplings of Scots pine and silver birch. In: Proceedings of 22nd International Scientific Conference "Research for Rural Development 2016". Jelgava: LUA, Vol. 2, p. 14-20
  • Baders E., Donis J., Krisans O., Adamovics A., Jansons A. 2015. Impact of freezing rain on forest stands: a case study in eastern part of Latvia. In: Libiete Z. (Ed.) Book of abstracts of the international scientific conference "Knowledge Based Forestry Sector". Salaspils: LSFRI Silava, p. 72
  • Krisans O., Bardulis A., Dzerina B., Jansons A. 2015. Seasonal growth dynamics of Norway spruce. In: Jansons A. (Ed.) Book of abstracts of conference "Adaption and mitigation: strategies for management of forest ecosystems & Enerwoods seminar". Salaspils: LSFRI Silava, p. 76
  • Krisans O., Jansons A. 2015. Seasonal growth dynamics of Norway spruce and black alder. In: Libiete Z. (Ed.) Book of abstracts of the international scientific conference "Knowledge Based Forestry Sector". Salaspils: LSFRI Silava, p. 111
  • Krišāns O., Kalniņš J., Puriņš M., Jansons Ā. 2015. Nokrišņu sadalījuma izmaiņu ietekme uz parastās egles stādu augšanu. Mežzinātne, 29, 84-98
  • Rieksts-Riekstins J., Krisans O., Jansons A. 2015. Influence of climatic changes on productivity of forest stands. In: Libiete Z. (Ed.) Book of abstracts of the international scientific conference "Knowledge Based Forestry Sector". Salaspils: LSFRI Silava, p. 114
  • Jansons A., Matisons R., Krišāns O., Puriņa L., Dzerina B., Neimane U. 2014. Height of the mass point and some properties of crown of 26 year old Scots pine and Lodgepole pine as potential parameters for wind damage in Zvirgzde, Latvia. Baltic Forestry, 20(1), 48-57
  • Jansons Ā., Zeps M., Rieksts-Riekstiņš J., Matisons R., Krišāns O. 2014. Height increment of hybrid aspen Populus tremuloides × P. tremula as a function of weather conditions in south-western part of Latvia. Silva Fennica, 48(5), 1124; https://doi.org/10.14214/sf.1124
  • Krisans O., Purina L., Purins M., Jansons A. 2014. The effect of altered distribution of precipitation on growth of forest planting material in central Latvia. In: Book of Abstracts of 9th Baltic Theriological Conference: Forest ecosystems and its management: towards understanding the complexity. Salaspils: LSFRI Silava, DU Institute of Systematic Biology, p. 18
  • Jansons A., Rieksts-Riekstins J., Zeps M., Krisans O. 2013. Height increment formation of hybrid aspen: empirical model. In: Sievanen R. et al. (Eds.) Proceedings of the 7th International Conference on Functional-Structural Plant Models. Vantaa: METLA, p. 171-173
  • Krišāns O., Rieksts-Riekstiņš J., Taukačs K., Jansons Ā. 2013. Melnalkšņa un baltalkšņa stumbru sulas plūsma ziemas periodā Latvijā. Mežzinātne, 27, 91-100
  • Jansons Ā., Puriņs L., Krišāns O., Sisenis L. 2012. Technically available biomass in young stands of Pinus controta and Pinus sylvestirus in Latvia. In: Proceedings of the Nordic Baltic conference on forest operations – OSCAR 2012. Mežzinātne, 25, 63-64
  • Puriņa L., Sisenis L., Krišāns O., Jansons Ā. 2012. Improved genetic material for a future climate – new species – new genotypes (case study of Pinus contorta in Latvia). In: Proceedings of AdapCar and IUFRO conference "Genetic aspects of adaptation and mitigation: forest health, wood quality and biomass production". Mežzinātne, 25, p. 168
  • Jansons Ā., Krišāns O., Jansons J. 2011. Parastās priedes (Pinus sylvestris L.) augstuma pieauguma veidošanās sezonālā dinamika. Mežzinātne, 23, 15-24

 

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