Freshwater requirements of large-scale bioenergy plantations for limiting global warming to 1.5 °C
Freshwater requirements of large-scale bioenergy plantations for limiting global warming to 1.5 °C
复制标题
将全球变暖限制在 1·5°C 的大型生物能源种植园的淡水需求
DOI:
10.1088/1748-9326/ab2b4b
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发表时间:
2019
影响因子:
6.7
通讯作者:
J. Jägermeyr
中科院分区:
文献类型:
--
作者:
F. Stenzel;D. Gerten;C. Werner;J. Jägermeyr
Limiting mean global warming to well below 2 °C will probably require substantial negative emissions (NEs) within the 21st century. To achieve these, bioenergy plantations with subsequent carbon capture and storage (BECCS) may have to be implemented at a large scale. Irrigation of these plantations might be necessary to increase the yield, which is likely to put further pressure on already stressed freshwater systems. Conversely, the potential of bioenergy plantations (BPs) dedicated to achieving NEs through CO2assimilation may be limited in regions with low freshwater availability. This paper provides a first-order quantification of the biophysical potentials of BECCS as a negative emission technology contribution to reaching the 1.5 °C warming target, as constrained by associated water availabilities and requirements. Using a global biosphere model, we analyze the availability of freshwater for irrigation of BPs designed to meet the projected NEs to fulfill the 1.5 °C target, spatially explicitly on areas not reserved for ecosystem conservation or agriculture. We take account of the simultaneous water demands for agriculture, industries, and households and also account for environmental flow requirements (EFRs) needed to safeguard aquatic ecosystems. Furthermore, we assess to what extent different forms of improved water management on the suggested BPs and on cropland may help to reduce the freshwater abstractions. Results indicate that global water withdrawals for irrigation of BPs range between ∼400 and ∼3000 km3yr−1, depending on the scenario and the conversion efficiency of the carbon capture and storage process. Consideration of EFRs reduces the NE potential significantly, but can partly be compensated for by improved on-field water management.
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DOI:
10.1177/0973408215600602b
发表时间:
2015-09
期刊:
Journal of Education for Sustainable Development
影响因子:
--
作者:
通讯作者:
--
影响因子:
8.2
作者:
Boysen, Lena R.;Lucht, Wolfgang;Schellnhuber, Hans Joachim
通讯作者:
Schellnhuber, Hans Joachim
影响因子:
6.3
作者:
Y. Wada;L. V. Beek;M. Bierkens
通讯作者:
Y. Wada;L. V. Beek;M. Bierkens
DOI:
--
发表时间:
2016
期刊:
影响因子:
--
作者:
L. Boysen;W. Lucht;D. Gerten;V. Heck
通讯作者:
V. Heck
影响因子:
5.1
作者:
J. Heinke;S. Ostberg;S. Schaphoff;K. Frieler;C. Müller;D. Gerten;M. Meinshausen;W. Lucht
通讯作者:
W. Lucht