DOI: 10.1175/JCLI-D-16-0610.1
Scopus记录号: 2-s2.0-85015861177
论文题名: On the long-term hydroclimatic sustainability of perennial bioenergy crop expansion over the United States
作者: Wang M. ; Wagner M. ; Miguez-Macho G. ; Kamarianakis Y. ; Mahalov A. ; Moustaoui M. ; Miller J. ; VanLoocke A. ; Bagley J.E. ; Bernacchi C.J. ; Georgescu M.
刊名: Journal of Climate
ISSN: 8948755
出版年: 2017
卷: 30, 期: 7 起始页码: 2535
结束页码: 2557
语种: 英语
Scopus关键词: Atmospheric temperature
; Biofuels
; Climate change
; Cultivation
; Fossil fuels
; Greenhouse gases
; Hydrology
; Moisture
; Soil moisture
; Soils
; Surface properties
; Sustainable development
; Water resources
; Weather forecasting
; Atmosphere-land interactions
; Greenhouse gas reductions
; Large scale cultivations
; Near surface temperature
; Numerical analysis/modeling
; Renewable energies
; Vegetation-atmosphere interactions
; Weather research and forecasting models
; Crops
; alternative energy
; atmosphere-biosphere interaction
; bioenergy
; climate change
; energy crop
; hydrology
; numerical model
; perennial plant
; sustainability
; United States
; Miscanthus
; Panicum virgatum
; Zea mays
英文摘要: Large-scale cultivation of perennial bioenergy crops (e.g., miscanthus and switchgrass) offers unique opportunities to mitigate climate change through avoided fossil fuel use and associated greenhouse gas reduction. Although conversion of existing agriculturally intensive lands (e.g., maize and soy) to perennial bioenergy cropping systems has been shown to reduce near-surface temperatures, unintended consequences on natural water resources via depletion of soil moisture may offset these benefits. The hydroclimatic impacts associated with perennial bioenergy crop expansion over the contiguous United States are quantified using the Weather Research and Forecasting Model dynamically coupled to a land surface model (LSM). A suite of continuous (2000-09) medium-range resolution (20-km grid spacing) ensemble-based simulations is conducted using seasonally evolving biophysical representation of perennial bioenergy cropping systems within the LSM based on observational data. Deployment is carried out only over suitable abandoned and degraded farmlands to avoid competition with existing food cropping systems. Results show that near-surface cooling (locally, up to 5°C) is greatest during the growing season over portions of the central United States. For some regions, principal impacts are restricted to a reduction in near-surface temperature (e.g., eastern portions of the United States), whereas for other regions deployment leads to soil moisture reduction in excess of 0.15-0.2 m3 m-3 during the simulated 10-yr period (e.g., western Great Plains). This reduction (~25%-30% of available soil moisture) manifests as a progressively decreasing trend over time. The large-scale focus of this research demonstrates the long-term hydroclimatic sustainability of large-scale deployment of perennial bioenergy crops across the continental United States, revealing potential hot spots of suitable deployment and regions to avoid. © 2017 American Meteorological Society. 资助项目: NSF, Norsk Sykepleierforbund
Citation statistics:
资源类型: 期刊论文
标识符: http://119.78.100.158/handle/2HF3EXSE/49807
Appears in Collections: 气候变化事实与影响
There are no files associated with this item.
作者单位: School of Mathematical and Statistical Sciences, Arizona State University, Tempe, AZ, United States; School of Geographical Sciences and Urban Planning, Arizona State University, Tempe, AZ, United States; Universidade de Santiago de Compostela, Galicia, Spain; School of Life Sciences, Arizona State University, Tempe, AZ, United States; Global Institute of Sustainability, Arizona State University, Tempe, AZ, United States; Department of Plant Biology, University of Illinois at Urbana-Champaign, Urbana, IL, United States; Department of Agronomy, Iowa State University, Ames, IA, United States; Climate and Ecosystems Science Division, Lawrence Berkeley National Laboratory, Berkeley, CA, United States; Global Change and Photosynthesis Research Unit, USDA-ARS, Urbana, IL, United States
Recommended Citation:
Wang M.,Wagner M.,Miguez-Macho G.,et al. On the long-term hydroclimatic sustainability of perennial bioenergy crop expansion over the United States[J]. Journal of Climate,2017-01-01,30(7)