Marginal land has received wide attention for its potential to produce bioenergy feedstocks
while minimizing diversion of productive agricultural land from food crop production.
However, there has been no consensus in the literature on how to define or identify land that
is marginal for food crops and beneficial for bioenergy crops. Studies have used different
definitions to quantify the amount of such land available; these have largely been based on
assumed biophysical thresholds for soil quality and productivity that are unchanging over …