The bioenergy crop production in Sweden in arable lands is increasing gradually. At now, about 13 kinds of energy crops are producing but previously it was only a few. In 1985, the total cultivated land for energy crops was less than 1000 ha for willow cultivation. But later in 2007 to 2012, only hybrid aspen was cultivated in 500 ha to 980 ha respectively. In the same way, 14000 ha arable land was cultivated in 2004. For reed canary grass, at 2000 it was 100 ha but in 2015 the amount has risen about 800 ha. So we can say that Sweden is increasing more arable land for bioenergy crop cultivation. Not only for economic purposes bioenergy crop cultivation also has some environmental benefits.
The study also has shown how bioenergy crops are contributing to develop the environment. It has all kinds of benefits on the environment for example on air, water, soil, and biodiversity.
During the last 25 years due to bioenergy crop cultivation in arable land, the humus level has increased more than 1 percent. And because of this, total crop production has risen 5%. Now 47% of Swedish arable land has developed the humus level. The carbon accumulation for energy crop cultivation was 0.1-1 tons per hectare per year. And nitrogen emission reduces 0.3 kg per hectare per year, so it has a good impact on air also. By absorbing different heavy metals and a high amount of Nitrogen and Phosphorus from wastewater, bioenergy crops also increasing the quality of water.
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