Interactions among bioenergy feedstock choices, landscape dynamics, and land use
Interactions among bioenergy feedstock choices, landscape dynamics, and land use
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DOI：
10.1890/09-0501.1
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发表时间：
2011-06-01
影响因子：
5
通讯作者：
Graham, Robin L.
中科院分区：
文献类型：
--
作者：
Dale, Virginia H.;Kline, Keith L.;Graham, Robin L.
生物能源原料选择对景观的影响非常重要，并且取决于土地利用实践及其环境影响。尽管与生物能源原料生产相关的土地利用变化和碳排放是动态且复杂的，但与其他运输燃料替代品相比，木质纤维素原料可能提供增强可持续性的机会。对于生物能源的可持续性，主要驱动因素和关注点围绕能源安全、粮食生产、土地生产力、土壤碳和侵蚀、温室气体排放、生物多样性、空气质量以及水量和质量。生物能源原料选择的许多影响需要多个尺度的多个指标来提供更完整的影响核算。最终，全世界生物能源原料资源（以及粮食供应）的长期可持续性取决于土地利用实践和景观动态。土地管理决策通常需要在潜在环境影响、社会和经济因素以及未来资源利用机会之间进行权衡。本文提出的假设是，生物能源原料生产的可持续性可以通过适当设计的农作物残留物和多年生木质纤维素系统来实现。我们发现，决策者需要科学进步和充足的数据，既可以定量和定性地衡量生物能源原料选择在不同空间和时间尺度上的影响，又可以对可再生液体燃料的可用选项进行公平比较。
Landscape implications of bioenergy feedstock choices are significant and depend on land-use practices and their environmental impacts. Although land-use changes and carbon emissions associated with bioenergy feedstock production are dynamic and complicated, lignocellulosic feedstocks may offer opportunities that enhance sustainability when compared to other transportation fuel alternatives. For bioenergy sustainability, major drivers and concerns revolve around energy security, food production, land productivity, soil carbon and erosion, greenhouse gas emissions, biodiversity, air quality, and water quantity and quality. The many implications of bioenergy feedstock choices require several indicators at multiple scales to provide a more complete accounting of effects. Ultimately, the long-term sustainability of bioenergy feedstock resources (as well as food supplies) throughout the world depends on land-use practices and landscape dynamics. Land-management decisions often invoke trade-offs among potential environmental effects and social and economic factors as well as future opportunities for resource use. The hypothesis being addressed in this paper is that sustainability of bioenergy feedstock production can be achieved via appropriately designed crop residue and perennial lignocellulosic systems. We find that decision makers need scientific advancements and adequate data that both provide quantitative and qualitative measures of the effects of bioenergy feedstock choices at different spatial and temporal scales and allow fair comparisons among available options for renewable liquid fuels.