Forests: Carbon sequestration, biomass energy, or both?

被引:148
|
作者
Favero, Alice [1 ]
Daigneault, Adam [2 ]
Sohngen, Brent [3 ]
机构
[1] Georgia Inst Technol, Atlanta, GA 30332 USA
[2] Univ Maine, Orono, ME 04469 USA
[3] Ohio State Univ, Columbus, OH 43210 USA
来源
SCIENCE ADVANCES | 2020年 / 6卷 / 13期
基金
美国食品与农业研究所;
关键词
WOODY BIOMASS; SEQUESTER CARBON; BIOENERGY; COST; MANAGEMENT; HARVESTS; MARKETS; MODEL;
D O I
10.1126/sciadv.aay6792
中图分类号
O [数理科学和化学]; P [天文学、地球科学]; Q [生物科学]; N [自然科学总论];
学科分类号
07 ; 0710 ; 09 ;
摘要
There is a continuing debate over the role that woody bioenergy plays in climate mitigation. This paper clarifies this controversy and illustrates the impacts of woody biomass demand on forest harvests, prices, timber management investments and intensity, forest area, and the resulting carbon balance under different climate mitigation policies. Increased bioenergy demand increases forest carbon stocks thanks to afforestation activities and more intensive management relative to a no-bioenergy case. Some natural forests, however, are converted to more intensive management, with potential biodiversity losses. Incentivizing both wood-based bioenergy and forest sequestration could increase carbon sequestration and conserve natural forests simultaneously. We conclude that the expanded use of wood for bioenergy will result in net carbon benefits, but an efficient policy also needs to regulate forest carbon sequestration.
引用
收藏
页数:13
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