Response

摘要

We Agree With Georgescu And Lobell That the effects of perennial bioenergy crops on hydrology and climate must be considered. However, our Policy Forum focused on the advantages of developing perennial grain crops (7), not bioenergy crops that can displace staple food crops.rnWe did not propose, as Georgescu and Lobell claim, a mechanism by which perennial crops utilize a greater portion of natural precipitation than annual crops. We also did not propose that perennial crops more efficiently produce biomass per amount of precipitation-derived water that is transpired.