Fast-growing poplars can release land for food production

Even though cotton is a biomaterial, the cultivation of cotton is not sustainable. The Aral Sea that disappeared within a few decades is a tragic yet illustrative case of the immense water demand for cultivating cotton. In contrast, in rain fed Nordic landscapes textile fibre is produced without irrigation.

Novel poplar trees SLU, the Swedish University of Agricultural Sciences, developed novel poplar clones that have superior growth on marginal land on northern latitudes. These poplars reach full growth within 20 years, as compared to 50-100 years for current forestry trees.

Anneli Adler, researcher at SLU and the first author of an article published in the scientific journal Joule says: "I named these clones SnowTiger as they grow fast in short rotations in northern climates. They are ´The Nordic Eucalypts´."

Joseph Samec, Professor of Organic Chemistry at Stockholm University and the main corresponding author of the article says: "The whole tree is converted to high value products where the cellulose becomes textile fibre while the hemicellulose and lignin are transformed to an advanced biofuel. This is noteworthy as less than 50 percent of wood is refined to textile fibre with current pulping technologies, while the rest is burnt to a low value."

And he continues: "This is a highly interdisciplinary study involving several institutes that demonstrate the Nordic region's ability to contribute to global food security and irrigation challenges."