Alder is interplanted with poplar to aid in growth. The black screens prevent sun scorching
Efficient cultivation of hybrid poplars that will serve as feedstock presents a major challenge to producing cellulose-based fuels. Therefore, we are researching ways to improve poplar production for bioenergy.
Some of the research is lab-based and other research is done at the four demonstration sites. Research topics range from land suitability, genetics, pathogens and pests, to endosymbionts, small organisms living symbiotically with poplars.