EMISSIONS OF CO2 FROM ENERGY CROP PRODUCTION

被引：39

作者：

TURHOLLOW, AF

PERLACK, RD

机构：

[1] Energy Division, Oak Ridge National Laboratory, Oak Ridge

来源：

BIOMASS & BIOENERGY | 1991年 / 1卷 / 03期

关键词：

CELLULOSIC ENERGY CROPS; CARBON DIOXIDE EMISSIONS;

D O I：

10.1016/0961-9534(91)90021-4

中图分类号：

S2 [农业工程];

学科分类号：

0828 ;

摘要：

Estimates of CO2 emissions in kg C dry Mg-1 of biomass produced under present and likely future production technology (with biomass yields in dry Mg ha-1 in parentheses) are: hybrid poplar, 25.8 (11.3) and 21.8 (18.5); sorghum, 32.0 (13.3) and 21.8 (30.2); and switchgrass, 32.9 (9.0) and 29.2 (14.4). The lower yield for each energy crop can be achieved today, while the potential exists to reach the higher yield, and under some circumstances the higher yield can be reached today. On a kg C GJ-1 basis, CO2 emissions from production of energy crops range from a high of 1.9 for switchgrass to a low of 1.1 at the higher yield for hybrid poplar. These carbon releases are considerably lower than emissions from fossil fuels, which on a kg C GJ-1 basis are 13.78, 22.29, and 24.65 for natural gas, petroleum, and coal, respectively.

引用

页码：129 / 135

页数：7

共 15 条

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