Japan Geoscience Union Meeting 2018

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[EE] Oral

H (Human Geosciences) » H-CG Complex & General

[H-CG21] Climate-human system interaction

Mon. May 21, 2018 3:30 PM - 5:00 PM A02 (Tokyo Bay Makuhari Hall)

convener:Kaoru Tachiiri(Japan Agency for Marine-Earth Science and Technology), Tokuta Yokohata(National Institute for Environmental Studies), Katsumasa Tanaka(国立環境研究所, 共同), KIYOSHI TAKAHASHI(National Institute for Environmental Studies), Chairperson:Tachiiri Kaoru(Japan Agency for Marine-Earth Science and Technology), Yokohata Tokuta(National Institute for Environmental Studies)

4:00 PM - 4:15 PM

[HCG21-07] On the sustainability and effects of irrigation for global implementation of Bio-Energy with Carbon Capture and Storage (BECCS)

*Naota Hanasaki1, Qian Zhou1 (1.NIES National Institute of Environmental Studies)

Keywords:BECCS, water resources, irrigation

To achieve the 2 degrees Celsius target shown in the Paris Agreement, Bio-Energy with Carbon Capture and Storage (BECCS) is considered an implementable technology. To produce a massive amount of bio-energy, a vast area of crop land is needed. The land requirement can be suppressed by enhancing crop production per area by applying irrigation. Irrigation for bio-energy would exacerbate water stress, however, since water resources is already scarce in many parts of the world. Here we investigated the spatial distribution of bio-energy cropland which secures sustainable irrigation by using the global hydrological model H08. The simulation results indicated that the regions with potential expandability in irrigated cropland are concentrated in tropical and mid to high latitudes. Since these regions are already humid for many cases, limited effects of irrigation were expected.

Acknowledgement: This research was supported by the Environment Research and Technology Development Fund (S-14-5) of the Environmental Restoration and Conservation Agency.