日本地球惑星科学連合2016年大会

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[U-05] Future Earth - 持続可能な地球へ向けた統合的研究

2016年5月22日(日) 15:30 〜 17:00 301B (3F)

コンビーナ:*氷見山 幸夫(北海道教育大学名誉教授)、岡本 耕平(名古屋大学大学院環境学研究科地理学講座)、安成 哲三(総合地球環境学研究所)、植松 光夫(東京大学大気海洋研究所)、谷口 真人(総合地球環境学研究所)、座長:氷見山 幸夫(北海道教育大学名誉教授)

16:15 〜 16:30

[U05-10] A Study on the Water-Biomass-Livestock-Energy Nexus for the Joint Credit Mechanism (JCM) in Mongolia

★招待講演

*王 勤学1渡辺 正孝2オチルバト バトヘシグ3岡寺 智大1エリ デニ1 (1.国立研究開発法人 国立環境研究所、2.中央大学 研究開発機構、3.モンゴル科学院 地理研究所)

キーワード:Joint Credit Mechanism (JCM), Water-Biomass-Livestock-Energy Nexus, Adaptation Strategies

Background/Objectives/Methods
Mongolia’s GDP grew 3.8 times and the agricultural production grew 2.4 times from 2001 to 2010. Mongolia also experienced an accelerated urbanization during the last decades. It was found that the rapid increase of energy use due to urbanization and economic development caused the sharp growth of CO2 emissions during last decades in Mongolia. Mongolia and Japan signed a bilateral document for the introduction of the Joint Credit Mechanism (JCM) on January 8th, 2013 (https://www.jcm.go.jp/mn-jp/about). It is urgently required for us to develop MRV (Measurement, Reporting and Verification) methodologies for evaluating effects of GHG emission reductions or removals by applying low carbon technologies, mitigation actions & adaptation strategies.
In this study, we have developed a framework of Water-Biomass-Livestock-Energy Nexus to estimate CO2 emissions from energy use and CO2 sequestration by ecosystem at first, and then, to evaluate effects of CO2 emission reductions or removals by applying low carbon technologies, mitigation actions & adaptation strategies. To achieve those objectives, we have developed a Water-Biomass-Livestock-Energy Nexus framework (Figure 1). For estimating CO2 emissions, we accepted the revised 1996 IPCC Guidelines for National Greenhouse Gas Inventories. However, for estimating CO2 sequestration, we developed an ecosystem model based on Biome-BGC by using satellite data of AVHRR and MODIS, the local GIS database of DEM, land use and soils, as well as field observations of meteorological and hydrological factors, for which we have established an integrated monitoring system network since 2006.
Results/Conclusions/Suggestions
It was found that the rapid increase of energy use caused the sharp growth of CO2 emissions during last decades in Mongolia. However, we evaluated the vulnerabilities caused by climate change in Mongolia and found that the fragile steppe ecosystems are being affected not only by rapid global warming, but also by increased grazing pressures from livestock husbandry. Our estimation shows that global warming and anthropogenic activities might exacerbate the degradation of permafrost, and cause the water deficit over land surface, and then led a decrease in both biomass productivity and its carrying capacity, which finally caused a decrease of CO2 sequestration by ecosystem (Figure 2).
For the purpose of ensuring the country’s sustainable development and reducing or removing the CO2 emissions from energy use, we suggested several adaptation strategies, which include: 1) to educate herds to reduce livestock numbers in accordance with local grassland carrying capacity; 2) to promote sustainable agriculture through enhancement of water allocation and water-saving technologies; and 3) to improve energy use efficiency and develop renewable energy technologies, such as the Film-solar Power System for Gel and Renewable Energy Refrigeration System.
Acknowledgements
This study is supported by the project: "Vulnerability Assessment and Adaptation Strategies for Permafrost Regions in Mongolia" funded by the Environment Research and Technology Development Fund (ERTDF), and the project: "Development of Innovative Adaptation System and MRV Method for JCM in Mongolia" funded by Ministry of the Environment, Government of Japan.