SciTech Connect

Title: The environmental benefits of cellulosic energy crops at a landscape scale

The environmental benefits of cellulosic energy crops at a landscape scale The objective of this paper is to present a broad overview of the potential environmental impacts of biomass energy from energy crops--particularly the cellulosic energy crops current under development. For this discussion, the term energy crop refers to a crop grown primarily to create feedstock for either making biofuels such as ethanol or burning in a heat or electricity generation facility. Cellulosic energy crops are designed to be used in cellulose-based ethanol conversion processes (as opposed to starch or sugar-based ethanol conversion processes). As more cellulose can be produced per hectare of land than can sugar or starch, the cellulose-based ethanol conversion process is a more efficient sue of land for ethanol production. Assessing the environmental impacts of biomass energy from energy crops is complex because the environmental impact of using biomass for energy must be considered in the context of alternative energy options while the environmental impact of producing biomass from energy crops must be considered in the context of alternative land-uses. Using biomass-derived energy can reduce greenhouse gas emissions or increase them; growing biomass energy crops can enhance soil fertility or degrade it. Without knowing the context of the biomass energy, one can say little about its specific more » environmental impacts. The primary focus of this paper is an evaluation of the environmental impacts of growing cellulosic energy crops especially at the landscape or regional scale. However, to set the stage for this discussion, the authors begin by comparing the environmental advantages and disadvantages of biomass-derived energy relative to other energy alternatives such as coal, hydropower, nuclear power, oil/gasoline, natural gas and photovoltaics. « less
Authors: ; ;
Publication Date:
OSTI Identifier:OSTI ID: 219273
Report Number(s):CONF-9511191--3
ON: DE96008626; TRN: 96:010619
DOE Contract Number:AC05-96OR22464
Resource Type:Conference
Resource Relation:Conference: Conference on environmental enhancement through agriculture, Boston, MA (United States), 16-17 Nov 1995; Other Information: PBD: [1995]
Research Org:Oak Ridge National Lab., TN (United States)
Sponsoring Org:USDOE, Washington, DC (United States)
Country of Publication:United States
Language:English
Subject: 09 BIOMASS FUELS; BIOMASS; ENVIRONMENTAL IMPACTS; FUEL SUBSTITUTION; CELLULOSE; LIQUID FUELS; COMBUSTION; BIOMASS PLANTATIONS; COMPARATIVE EVALUATIONS; FOSSIL FUELS; LAND REQUIREMENTS; PRODUCTIVITY; PRICES; RUNOFF; NITRATES