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Publikasjoner
Forskerprofil med publikasjoner i vitenarkivet
Abiven, S., A. Hund, V. Martinsen, and G. Cornelissen. 2015. Biochar amendment increases maize root surface areas and branching: a shovelomics study in Zambia. Plant and Soil:1-11.
Alling, V., S. E. Hale, V. Martinsen, J. Mulder, A. Smebye, G. D. Breedveld, and G. Cornelissen. 2014. The role of biochar in retaining nutrients in amended tropical soils. Journal of Plant Nutrition and Soil Science 177:671-680.
Austrheim, G., J. D. M. Speed, M. Evju, A. Hester, Ø. Holand, L. E. Loe, V. Martinsen, R. Mobæk, J. Mulder, H. Steen, D. B. A. Thompson, and A. Mysterud. 2016. Synergies and trade-offs between ecosystem services in an alpine ecosystem grazed by sheep–an experimental approach. Basic and Applied Ecology.
Austrheim, G., J. D. M. Speed, V. Martinsen, J. Mulder, and A. Mysterud. 2014. Experimental Effects of Herbivore Density on Aboveground Plant Biomass in an Alpine Grassland Ecosystem. Arctic, Antarctic, and Alpine Research 46:535-541.
Budai, A. E., D. P. Rasse, T. Cottis, E. J. Joner, V. Martinsen, A. O'Toole, H. Riley, S. Rivedal, I. Sturite, G. Søgaard, S. Weldon, and S. Øpstad. 2024. Qualitative evaluation of nine agricultural methods for increasing soil carbon storage in Norway. European Journal of Soil Science 75:e13493.
Cornelissen, G., C. Makate, J. Mulder, J. Janssen, J. Trimarco, A. Obia, V. Martinsen, and E. Sørmo. 2024. Emission Factors for Biochar Production from Various Biomass Types in Flame Curtain Kilns. Applied Sciences 14:9649.
Cornelissen, G., Jubaedah, N. L. Nurida, S. E. Hale, V. Martinsen, L. Silvani, and J. Mulder. 2018. Fading positive effect of biochar on crop yield and soil acidity during five growth seasons in an Indonesian Ultisol. Science of the Total Environment 634:561-568.
Cornelissen, G., V. Martinsen, V. Shitumbanuma, V. Alling, G. Breedveld, D. Rutherford, M. Sparrevik, S. Hale, A. Obia, and J. Mulder. 2013. Biochar Effect on Maize Yield and Soil Characteristics in Five Conservation Farming Sites in Zambia. Agronomy 3:256-274.
Davies, J. A. C., E. Tipping, E. C. Rowe, J. F. Boyle, E. Graf Pannatier, and V. Martinsen. 2016. Long-term P weathering and recent N deposition control contemporary plant-soil C, N and P. Global Biogeochemical Cycles:231-249.
Dong, L., V. Martinsen, Y. Wu, Y. Zheng, C. Liang, Z. Liu, and J. Mulder. 2021. Effect of grazing exclusion and rotational grazing on labile soil organic carbon in north China. European Journal of Soil Science 72:372-384.
Dong, L., Y. Zheng, V. Martinsen, C. Liang, and J. Mulder. 2022. Effect of Grazing Exclusion and Rotational Grazing on Soil Aggregate Stability in Typical Grasslands in Inner Mongolia, China. Frontiers in Environmental Science 10.
Hale, S. E., V. Alling, V. Martinsen, J. Mulder, G. D. Breedveld, and G. Cornelissen. 2013a. The sorption and desorption of phosphate-P, ammonium-N and nitrate-N in cacao shell and corn cob biochars. Chemosphere 91:1612-1619.
Hale, S. E., J. Jensen, L. Jakob, P. Oleszczuk, T. Hartnik, T. Henriksen, G. Okkenhaug, V. Martinsen, and G. Cornelissen. 2013b. Short-Term Effect of the Soil Amendments Activated Carbon, Biochar, and Ferric Oxyhydroxide on Bacteria and Invertebrates. Environmental Science & Technology 47:8674-8683.
Lugoi, L. P., Y. Bamutaze, V. Martinsen, Ø. B. Dick, and Å. R. Almås. 2019. Ecosystem productivity response to environmental forcing, prospect for improved rain-fed cropping productivity in lake Kyoga Basin. Applied Geography 102:1-11.
Lugoi, L. P., V. Martinsen, and Å. R. Almås. 2022. Cultivating Improved Varieties of Maize Does Not Guarantee Sufficient Dietary Provision of Fe and Zn in a Maize–Bean Intercropping System in Eastern Uganda: Evaluating Effects of Climate and Soil Types. Agronomy 12:2383.
Lugoi, L. P., Y. Bamutaze, V. Martinsen, and A. R. Almas. 2023. Climate change hotpots and their implications on rain-fed cropping system in a tropical environment. Applied Geography 154.
Makate, C., G. Cornelissen, G. Simusokwe, A. B. Smebye, Ø. N. Handberg, M. Phiri, J. Mulder, and V. Martinsen. 2025. Less effort for extra benefit? Evaluating the impact of conservation agriculture on resource saving and returns across regions and farming systems in Zambia. Ecological Economics 238:108736.
Martinsen, V., G. Austrheim, A. Mysterud, and J. Mulder. 2011a. Effects of herbivory on N-cycling and distribution of added (15)NH(4)(+) in N-limited low-alpine grasslands. Plant and Soil 347:279-292.
Martinsen, V., F. Grund, M. Kjeve Ness, H. A. de Wit, G. Austrheim, A. Mysterud, and J. Mulder. 2013. Differences in the quality of seepage water and runoff casued by plant community and grazing at an alpine site in Hol, Southern Norway. Water Air and Soil Pollution 224.
Martinsen, V., J. Mulder, G. Austrheim, D. O. Hessen, and A. Mysterud. 2012. Effects of sheep grazing on availability and leaching of soil nitrogen in low-alpine grasslands. Arctic, Antarctic and Alpine Research 44:67-82.
Martinsen, V., J. Mulder, G. Austrheim, and A. Mysterud. 2011b. Carbon storage in low-alpine grassland soils: effects of different grazing intensities of sheep. European Journal of Soil Science 62:822-833.
Martinsen, V., J. Mulder, V. Shitumbanuma, M. Sparrevik, T. Børresen, and G. Cornelissen. 2014. Farmer-led maize biochar trials: Effect on crop yield and soil nutrients under conservation farming. Journal of Plant Nutrition and Soil Science 177:681-695.
Martinsen, V., V. Alling, N. L. Nurida, J. Mulder, S. E. Hale, C. Ritz, D. W. Rutherford, A. Heikens, G. D. Breedveld, and G. Cornelissen. 2015. pH effects of the addition of three biochars to acidic Indonesian mineral soils. Soil Science and Plant Nutrition:1-14.
Martinsen, V., V. Shitumbanuma, J. Mulder, C. Ritz, and G. Cornelissen. 2017. Effects of hand-hoe tilled conservation farming on soil quality and carbon stocks under on-farm conditions in Zambia. Agriculture, Ecosystems & Environment 241:168-178.
Martinsen, V., J. L. Munera-Echeverri, A. Obia, G. Cornelissen, and J. Mulder. 2019. Significant build-up of soil organic carbon under climate-smart conservation farming in Sub-Saharan Acrisols. Science of the Total Environment 660:97-104.
Meragiaw, M., Z. Woldu, V. Martinsen, and B. R. Singh. 2018. Woody species composition and diversity of riparian vegetation along the Walga River, Southwestern Ethiopia. Plos One 13:e0204733.
Meragiaw, M., Z. Woldu, V. Martinsen, and B. R. Singh. 2021a. Carbon stocks of above- and belowground tree biomass in Kibate Forest around Wonchi Crater Lake, Central Highland of Ethiopia. Plos One 16:e0254231.
Meragiaw, M., Z. Woldu, V. Martinsen, and B. R. Singh. 2021b. Floristic composition and structure of the Kibate Forest along environmental gradients in Wonchi, Southwestern Ethiopia. Journal of Forestry Research.
Munera-Echeverri, J. L., V. Martinsen, P. Dorsch, A. Obia, and J. Mulder. 2022. Pigeon pea biochar addition in tropical Arenosol under maize increases gross nitrification rate without an effect on nitrous oxide emission. Plant and Soil 474:195-212.
Munera-Echeverri, J. L., V. Martinsen, L. T. Strand, G. Cornelissen, and J. Mulder. 2020. Effect of conservation farming and biochar addition on soil organic carbon quality, nitrogen mineralization, and crop productivity in a light textured Acrisol in the sub-humid tropics. Plos One 15:e0228717.
Munera-Echeverri, J. L., V. Martinsen, L. T. Strand, V. Zivanovic, G. Cornelissen, and J. Mulder. 2018. Cation exchange capacity of biochar: An urgent method modification. Science of the Total Environment 642:190-197.
Mysterud, A., D. O. Hessen, R. Mobæk, V. Martinsen, J. Mulder, and G. Austrheim. 2011. Plant quality, seasonality and sheep grazing in an alpine ecosystem. Basic and Applied Ecology 12:195-206.
Namatsheve, T., J. Mulder, A. Obia, and V. Martinsen. 2025. Biological N2-fixation and grain yield of pigeon pea: The role of biochar and conservation agriculture in low-input systems. Field Crops Research 328:109923.
Namatsheve, T., V. Martinsen, A. Obia, and J. Mulder. 2024. Grain yield and nitrogen cycling under conservation agriculture and biochar amendment in agroecosystems of sub-Saharan Africa. A meta-analysis. Agriculture, Ecosystems & Environment 376:109243.
Obia, A., J. Lyu, J. Mulder, V. Martinsen, G. Cornelissen, A. B. Smebye, and A. R. Zimmerman. 2024. Biochar dispersion in a tropical soil and its effects on native soil organic carbon. Plos One 19:e0300387.
Obia, A., G. Cornelissen, V. Martinsen, A. B. Smebye, and J. Mulder. 2020. Conservation tillage and biochar improve soil water content and moderate soil temperature in a tropical Acrisol. Soil and Tillage Research 197:104521.
Obia, A., V. Martinsen, G. Cornelissen, T. Børresen, A. B. Smebye, J. L. Munera-Echeverri, and J. Mulder. 2019. Biochar Application to Soil for Increased Resilience of Agroecosystems to Climate Change in Eastern and Southern Africa. Pages 129-144 in Y. Bamutaze, S. Kyamanywa, B. R. Singh, G. Nabanoga, and R. Lal, editors. Agriculture and Ecosystem Resilience in Sub Saharan Africa: Livelihood Pathways Under Changing Climate. Springer International Publishing, Cham.
Obia, A., T. Børresen, V. Martinsen, G. Cornelissen, and J. Mulder. 2017a. Effect of biochar on crust formation, penetration resistance and hydraulic properties of two coarse-textured tropical soils. Soil and Tillage Research 170:114-121.
Obia, A., T. Børresen, V. Martinsen, G. Cornelissen, and J. Mulder. 2017b. Vertical and lateral transport of biochar in light-textured tropical soils. Soil and Tillage Research 165:34-40.
Obia, A., J. Mulder, V. Martinsen, G. Cornelissen, and T. Børresen. 2016. In situ effects of biochar on aggregation, water retention and porosity in light-textured tropical soils. Soil and Tillage Research 155:35-44.
Ochoa-Hueso, R., M. Delgado-Baquerizo, A. C. Risch, L. Ashton, D. Augustine, N. Bélanger, S. Bridgham, A. J. Britton, V. J. Bruckman, J. J. Camarero, G. Cornelissen, J. A. Crawford, F. A. Dijkstra, A. Diochon, S. Earl, J. Edgerley, H. Epstein, A. Felton, J. Fortier, D. Gagnon, K. Greer, H. M. Griffiths, C. Halde, H. M. Hanslin, L. I. Harris, J. A. Hartsock, P. Hendrickson, K. A. Hovstad, J. Hu, A. D. Jani, K. Kent, D. Kerdraon-Byrne, S. D. S. Khalsa, D. Y. F. Lai, F. Lambert, J. M. LaMontagne, S. Lavergne, B. A. Lawrence, K. Littke, A. C. Leeper, M. A. Licht, M. A. Liebig, J. S. Lynn, J. E. Maclean, V. Martinsen, M. D. McDaniel, A. C. S. McIntosh, J. R. Miesel, J. Miller, M. J. Mulvaney, G. Moreno, L. Newstead, R. J. Pakeman, J. Pergl, B. D. Pinno, J. Piñeiro, K. Quigley, T. M. Radtke, P. Reed, V. Rolo, J. Rudgers, P. M. Rutherford, E. J. Sayer, L. Serrano-Grijalva, M. Strack, N. Sukdeo, A. F. S. Taylor, B. Truax, L. J. S. Tsuji, N. van Gestel, B. M. Vaness, K. Van Sundert, M. Vítková, R. Weigel, M. J. Wilton, Y. Yano, E. Teen, and E. Bremer. 2023. Bioavailability of Macro and Micronutrients Across Global Topsoils: Main Drivers and Global Change Impacts. Global Biogeochemical Cycles 37:e2022GB007680.
Pandit, N. R., J. Mulder, S. E. Hale, V. Martinsen, H. P. Schmidt, and G. Cornelissen. 2018. Biochar improves maize growth by alleviation of nutrient stress in a moderately acidic low-input Nepalese soil. Science of the Total Environment 625:1380-1389.
Phiri, M., V. Martinsen, G. Simusokwe, A. B. Smebye, A. Obia, V. Shitumbanuma, J. Selby, G. Cornelissen, C. Makate, and J. Mulder. 2025. Enhancing yields and climate resilience through conservation agriculture: multi-year regional on-farm trials in Zambia. Plant and Soil.
Phiri, M., J. Mulder, B. H. Chishala, L. M. Chabala, and V. Martinsen. 2024. Phosphorus Availability and Uptake following a Maize-Pigeon Pea Rotation under Conservation Agriculture. Agronomy-Basel 14.
Schmidt, H., B. Pandit, V. Martinsen, G. Cornelissen, P. Conte, and C. Kammann. 2015. Fourfold Increase in Pumpkin Yield in Response to Low-Dosage Root Zone Application of Urine-Enhanced Biochar to a Fertile Tropical Soil. Agriculture 5:723.
Sjögersten, S., C. Alewell, L. C‚cillon, F. Hagedorn, R. Jandl, J. Leifeld, V. Martinsen, A. Schindlbacher, M. T. Sebasti , and H. Van Miegroet. 2011. Mountain soils in a changing climate - vulnerability of carbon stocks and ecosystem feedbacks. Pages 118-148 in R. Jandl, M. Rodeghiero, and M. Olsson, editors. Soil carbon in sensitive European ecosystems: from science to land management. Wiley-Blackwell, Chichester.
Sparrevik, M., C. Adam, V. Martinsen, Jubaedah, and G. Cornelissen. 2015. Emissions of gases and particles from charcoal/biochar production in rural areas using medium-sized traditional and improved “retort” kilns. Biomass and Bioenergy 72:65-73.
Sparrevik, M., J. L. Field, V. Martinsen, G. D. Breedveld, and G. Cornelissen. 2013. Life Cycle Assessment to Evaluate the Environmental Impact of Biochar Implementation in Conservation Agriculture in Zambia. Environmental Science & Technology 47:1206-1215.
Speed, J. D. M., V. Martinsen, A. J. Hester, Ø. Holand, J. Mulder, A. Mysterud, and G. Austrheim. 2015. Continuous and discontinuous variation in ecosystem carbon stocks with elevation across a treeline ecotone. Biogeosciences 12:1615-1627.
Speed, J. M., V. Martinsen, A. Mysterud, J. Mulder, Ø. Holand, and G. Austrheim. 2014. Long-Term Increase in Aboveground Carbon Stocks Following Exclusion of Grazers and Forest Establishment in an Alpine Ecosystem. Ecosystems:1-13.
Strand, L. T., V. Martinsen, K. S. Utaaker, M. Davey, G. R. Rauset, O. Strand, J. Aiken, A. Kuznetsova, and B. Ytrehus. 2025. Soil characteristics at artificial salt licks and their potential impacts on occurrence of chronic wasting disease. Ecosphere 16:e70221.
Vekic, T. T., S. Nadeem, L. Molstad, V. Martinsen, E. G. Hiis, L. Bakken, T. Rutting, L. Klemedtsson, and P. Dorsch. 2023. Effect of calcareous and siliceous amendments on N2O emissions of a grassland soil. Soil Use and Management 39:1082-1095.
Wolka, K., B. Biazin, V. Martinsen, and J. Mulder. 2021a. Soil and water conservation management on hill slopes in Southwest Ethiopia. I. Effects of soil bunds on surface runoff, erosion and loss of nutrients. Science of the Total Environment 757:142877.
Wolka, K., B. Biazin, V. Martinsen, and J. Mulder. 2021b. Soil and water conservation management on hill slopes in southwest Ethiopia. II. Modeling effects of soil bunds on surface runoff and maize yield using AquaCrop. Journal of Environmental Management 296:113187.
Wolka, K., B. Biazin, V. Martinsen, and J. Mulder. 2021c. Soil organic carbon and associated soil properties in Enset (Ensete ventricosum Welw. Cheesman)-based homegardens in Ethiopia. Soil and Tillage Research 205:104791.
Wolka, K., B. Biazin, V. Martinsen, and J. Mulder. 2022. Spatial variation in soil properties and crop yield on stone bund terraces in southwest Ethiopia. Soil Use and Management 38:1736-1748.
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