One of the methods for increasing the resilience of agroecosystems is to combine species with different growth forms on the same piece of land. This is known as intercropping and aims to increase ecosystem services provided by that area.
Agroforestry with fast-growing trees, as one way of intercropping, has been my main field of research during last years. Fast-growing deciduous trees also have a great potential as complementary raw material for the forest industry to produce textile fiber, bio-oil, packaging etc., and provide additional income for landowners.
Before my return to the university in 2019, I have built up a brand SnowTiger® and worked as manager of a business area in biotecnology company SweTree Technologies AB.
In cooperation with farmers around lake Mälaren our project group (Erik Öckinger as project leader, Andy Ruck, René van der Wal and John Löfkvist), evaluates the effect of mixed cropping on biodiversity at farmers own fields and surrounding landscapes. EU Horizon 2020-2024.
In this project I collaborate with prof. Martin Weih and PhD students Joel Jensen and Letizia Bulascoschi. My task is to interview forest owners and managers about their interest to establish and manage mixed species stands on forestland in Sweden.
This project develops a concept for bioeconomy where nutrients in wastewater treatment sludge are recycled in poplar fields to promote the growth of woody raw material. In collaboration with Almir Karacic, Lorenzo Menichetti, Thomas Kätterer, Lina Zickiene and Mindaugas Silininkas we have measured also the accumulation of carbon in soil 30 years after establishment of short rotation forests with poplars, hybrid aspens and silver birch. EU and Swedish Energy Agency finance this project. 2018-2023.
Climate adapted poplars (CLAP)
In cooperation with my collegues Almir Karacic, Ann Christin Rönnberg Wästljung, Giulia Vico, Thomas Richards, Rami-Petteri Apuli, Magnus Herzberg from SweTree Technologies AB, Prof. Pär Ingvarsson and Prof. Martin Weih, climate adapted poplar clones for Baltic Sea Region have been evaluated and genetic background of spring leaf flush and autumn bud set have been identified. Business plan for marketing poplar clones bred at SLU for commercial use, #SnowTiger, has been developed. FORMAS 2016-2020.
Cotton substitute and biofuels from fast growing trees by catalytic fractionation
In collaboration with prof. Joseph Samec's research group, Almir Karacic, Gregg Beckham, Rebecca Hanes and their collegues the entire value chain including cultivation of poplar trees, wood processing to man-made cellulose fibers and bio-oil was evaluated in a life cycle perspective. Swedish Energy Agency 2018-2020.
Adler, A., Kumaniaev, I., Karacic, A., Baddigam, K.R., Hanes, R.J., Subbotina, E., Bartling, A.W., Huertas-Alonso, A.J., Moreno, A., Håkansson, H., Mathew, A.P., Beckham, G.T and Samec J.S.M. (2022). Lignin-first biorefining of Nordic poplar to produce cellulose fibers could displace cotton production on agricultural lands. Joule 6(8), 1845-1858. doi.org/10.1016/j.joule.2022.06.021
Rönnberg-Wastljung, A.C., Adler, A., Karacic, A., Liepins, K., Richards, T.J., Ingvarsson, P.K. and Weih, M. (2022). Phenotypic plasticity in Populus trichocarpa clones across environments in the Nordic-Baltic region. Scandinavian Journal of Forest Research 37(1):1-5 DOI: 10.1080/02827581.2022.2039279
Adler, A., Karacic, A., Rönnberg-Wästljung, A., Johansson, U., Liepins, K., Gradeckas, A., and Christersson, L. (2021). Variation of growth and phenology traits in poplars planted in clonal trials in Northern Europe - implications for breeding. BioEnergy Research, 14(2):426-444. DOI: 10.1007/s12155-021-10262-8
Karacic, A., Adler, A., Weih, M., and Christersson, L. (2021). ana Analysis of Poplar Growth and Quality Traits to Facilitate Identification of Climate-Adapted Plant Material for Sweden. Bioenergy Research, 14(2):409-425. DOI: 10.1007/s12155-020-10210-y
Vico, G., Karacic, A., Adler, A., Richards, T., and Weih, M. (2021). Consistent Poplar Clone Ranking Based on Leaf Phenology and Temperature Along a Latitudinal and Climatic Gradient in Northern Europe. Bioenergy Research, 14(2):445-459. DOI: 10.1007/s12155-021-10249-5
Clifton-Brown, J., Harfouche, A., Casler, M., Jones, H.D., Macalpine, W., Murphy-Bokern, D., Smart, L., Adler, A., Ashman, Ch., Awty-Carroll, D., /…/, Lewandowski, I. (2018). Breeding progress and preparedness for mass-scale deployment of perennial lignocellulosic biomass crops swithgrass, miscanthus, willow and poplar. GCB Bioenergy 11(1), 118-151. DOI: 10.111/gcbb.12566
Bergkvist, G., Adler, A., Hansson, M., and Weih, M. (2010). Red fescue undersown in winter wheat suppresses Elytrigia repens. Weed Research 50, 447-455. DOI: 10.1111/j.1365-3180.2010.00789.x
Adler, A., Dimitriou, I., Aronsson, P., Verwijst, T., and Weih, M. (2008). Wood fuel quality of two Salix viminalis stands fertilised with sludge, ash and sludge-ash mixtures. Biomass & Bioenergy 32, 914-925. DOI: 10.1016/j.biombioe.2008.01.013
Adler, A., Karacic, A., and Weih, M. (2008). Biomass allocation and nutrient use in fast-growing woody and herbaceous perennials used for phytoremediation. Plant and Soil 305, 189-206. DOI: 10.1007/s11104-008-9551-2
Adler, A., Verwijst, T., and Aronsson, P. (2005). Estimation and relevance of bark proportion in a willow stand. Biomass & Bioenergy 29, 102-113. DOI:10.1016/j.biombioe.2005.04.003
Dimitriou, I., Eriksson, J., Adler, A., Aronsson, P., and Verwijst, I. (2006). Fate of heavy metals after application of sewage sludge and wood-ash mixtures to short-rotation willow coppice. Environmental Pollution 142, 160-169. DOI: 10.1016/j.envpol.2005.09.001
Tamm (Adler), A., Kull, K., and Sammul, M. (2001). Classifying clonal growth forms based on vegetative mobility and ramet longevity: a whole community analysis. Evolutionary Ecology 15, 383-401. DOI: 10.1023/a:1016093116926
Sammul, M., Kull, K., and Tamm (Adler), A. (2003). Clonal growth in a species-rich grassland: Results of a 20-year fertilization experiment. Folia Geobotanica 38, 1-20. DOI: 10.1007/bf02803124
Presentationer på konferenser:
Adler, A., Karacic, A, Christersson, L. and Šilininkas, M. 2014. High productive and climate adapted poplar clones for the energy and forestry sector in Baltic Sea Region. Abstract in the Proceedings of the 6th International Poplar Symposium (IPS VI). Domestication of Populus and Salix: How Far Have We Come, and How Far Do We Still Have To Go?” Vancouver, British Columbia, Canada. 20-23 July.
Adler, A. 2013. Poplar Projects at SweTree Technologies AB. Oral presentation at Poplar Workshop “Testing of European Poplar Clones for the Use in Short Rotation Coppice (SRC) Culture” October 28th-30th 2013, Teisendorf, Germany.