Uncertainty of modelled bioenergy with carbon capture and storage due to variability of input data
Uncertainty of modelled bioenergy with carbon capture and storage due to variability of input data
复制标题
由于输入数据的可变性,碳捕获和储存的生物能源建模存在不确定性
DOI:
10.1111/gcbb.12803
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发表时间:
2021
期刊:
影响因子:
5.6
通讯作者:
Shepherd A
中科院分区:
文献类型:
--
作者:
Shepherd A
Uncertainty is inherent in modelled projections of bioenergy with carbon capture and storage (BECCS), yet sometimes treated peripherally. One source of uncertainty comes from different climate and soil inputs. We investigated variations in 70‐year UK projections ofMiscanthus × giganteus(M × g), BECCS and environmental impacts with input data. We used cohort datasets of UKCP18 RCP8.5 climate projections and Harmonized World Soil Database (HWSD) soil sequences, as inputs to the MiscanFor bioenergy model. Low annual yield occurred 1 in 10 years as a UK‐average but yield uncertainty varied regionally, especially south and east England. BECCS projections were similar among cohorts, with variation resulting from climate cohorts of the same database ensemble (3.99 ± 0.14 t C ha−1year−1) larger than uncertainty resulting from soil sequences in each grid block (3.96 ± 0.03 t C ha−1year−1). This is supported by annual time series, displaying variable annual climate and a close yield–BECCS–climate relationship but partial correspondence of yield and BECCS with maximal soil variability. Each HWSD soil grid square contains up to 10 ranked soil types. Predominant soil commonly has over 50% coverage, indicating why BECCS from combined soil sequences were not significantly different from BECCS using the dominant soil type. Mean BECCS from the full climate ensemble combined with the full soil sequences, over the current area of cropping limits in England and Wales, is 3.98 ± 0.14 t C ha−1year−1. The bioenergy crop has a mean seasonal soil water deficit of 65.79 ± 4.27 mm and associated soil carbon gain of 0.22 ± 0.03 t C ha−1year−1, with bioenergy feedstock calculated at 131 GJ t−1y−1. The uncertainty is specific to the input datasets and model used. The message of this study is to ensure that uncertainty is accounted for when interpreting modelled projections of land use impacts.
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影响因子:
5.6
作者:
Dondini, Marta;Hastings, Astley;Smith, Pete
通讯作者:
Smith, Pete
DOI:
10.1111/j.1757-1707.2012.01166.x
发表时间:
2012-11
期刊:
GCB Bioenergy
影响因子:
--
作者:
Sujithkumar Surendran Nair;Shujiang Kang;Xuesong Zhang;F. Miguez;R. Izaurralde;W. Post;M. Dietze;L. Lynd;S. Wullschleger
通讯作者:
Sujithkumar Surendran Nair;Shujiang Kang;Xuesong Zhang;F. Miguez;R. Izaurralde;W. Post;M. Dietze;L. Lynd;S. Wullschleger
DOI:
10.1086/285213
发表时间:
1991
期刊:
The American Naturalist
影响因子:
--
作者:
E. Bosatta;G. Ågren
通讯作者:
G. Ågren
DOI:
10.1080/16000870.2017.1327765
发表时间:
2017-01
期刊:
Tellus A: Dynamic Meteorology and Oceanography
影响因子:
--
作者:
C. Mauritzen;T. Živković;Vidyunmala Veldore
通讯作者:
C. Mauritzen;T. Živković;Vidyunmala Veldore
DOI:
--
发表时间:
2017
期刊:
影响因子:
--
作者:
A. Shepherd;Wellen Atuhaire;Lianhai Wu;D. Hogan;R. Dunn;L. Cárdenas
通讯作者:
L. Cárdenas