{"created":"2025-03-07T04:50:42.877038+00:00","id":2000069,"links":{},"metadata":{"_buckets":{"deposit":"526ceef7-c5e8-43d9-8b27-fdc19eb4385d"},"_deposit":{"created_by":18,"id":"2000069","owner":"18","owners":[18],"pid":{"revision_id":0,"type":"depid","value":"2000069"},"status":"published"},"_oai":{"id":"oai:jicari.repo.nii.ac.jp:02000069","sets":["674"]},"author_link":[],"control_number":"2000069","item_10002_biblio_info_7":{"attribute_name":"bibliographic_information","attribute_value_mlt":[{"bibliographicIssueNumber":"Discussion Paper No.18","bibliographicNumberOfPages":"23","bibliographicPageEnd":"21","bibliographicPageStart":"1","bibliographicVolumeNumber":"Discussion Paper"}]},"item_10002_description_5":{"attribute_name":"抄録","attribute_value_mlt":[{"subitem_description":"In sub-Saharan Africa (SSA), the rapid expansion of rice consumption in recent years has led to increased production. It is assumed that the expansion of rice production in SSA is mainly due to an increase in production area, while the total amount of unutilized arable land is decreasing. In this paper, we first analyze the changes in rice production before and after the launch of the Coalition for African Rice Development (CARD) using the compound average growth rate (CAGR). The results show that, recent rice production in many countries has expanded at a higher rate and that this growth has been mainly driven by an increase in production area. We also analyze the factors that brought about productivity improvements based on the example of Tanzania, which achieved production growth through productivity improvements after implementing CARD. In Tanzania, a comprehensive strategy for the promotion of rice cultivation has been developed, and the dissemination of cultivation techniques, expansion of irrigated areas, and promotion of mechanization under this policy have contributed to improved productivity. Based on the findings of this study, many countries need to transition from the phase of expanding production area to that of improving productivity. To achieve this, it will be necessary to address issues directly related to improving productivity, such as irrigation improvement and the dissemination of proper cultivation technology.","subitem_description_type":"Abstract"},{"subitem_description":"サブサハラアフリカにおいては、近年コメの消費量の急速な拡大に伴い、生産量も拡大している。コメの生産の拡大は主に生産面積の拡大によってなされていると考えられている一方で、可耕地は減少していると言われている。本稿では、まずCARDのメンバー国におけるCARD実施前後のコメ生産の変化についてCAGRを用いて分析した。その結果、多くの国においてコメ生産はCARD後により高い成長率で拡大していること、その成長は主に生産面積の拡大によってなされていることが分かった。他方で、CARD後に生産性の改善によって生産量の拡大を達成しているタンザニアを例に、生産性改善をもたらした要因を分析した。タンザニアでは、稲作振興の総合的な政策が整備され、その政策の下で栽培技術の普及、灌漑面積の拡大、機械化の推進が行われたことが生産性の改善に貢献している。以上から、今後多くの国において生産面積の拡大フェーズから生産性の改善フェーズへの移行が必要となっており、そのためには限られた資源を栽培技術の普及を伴う灌漑整備等の生産性向上に直結する課題へあてるといった対応が必要であると考えられる。","subitem_description_type":"Abstract"}]},"item_10002_publisher_8":{"attribute_name":"出版者","attribute_value_mlt":[{"subitem_publisher":"JICA Ogata Sadako Research Institute/緒方貞子平和開発研究所"}]},"item_access_right":{"attribute_name":"アクセス権","attribute_value_mlt":[{"subitem_access_right":"open access","subitem_access_right_uri":"http://purl.org/coar/access_right/c_abf2"}]},"item_creator":{"attribute_name":"著者","attribute_type":"creator","attribute_value_mlt":[{"creatorNames":[{"creatorName":"Fujiie,Hitoshi and Suzuki,Fumihiko"}]}]},"item_files":{"attribute_name":"ファイル情報","attribute_type":"file","attribute_value_mlt":[{"accessrole":"open_access","date":[{"dateType":"Available","dateValue":"2024-03-01"}],"filename":"Discussion Paper No.18.pdf","filesize":[{"value":"518 KB"}],"format":"application/pdf","mimetype":"application/pdf","url":{"url":"https://jicari.repo.nii.ac.jp/record/2000069/files/Discussion Paper No.18.pdf"},"version_id":"32968597-4055-4850-8cc2-54b4d2c125ef"}]},"item_keyword":{"attribute_name":"キーワード","attribute_value_mlt":[{"subitem_subject":"Rice, CAGR, Sub-Saharan Africa, Tanzania, Coalition for African Rice Development (CARD)"},{"subitem_subject":"稲作、CAGR、サブサハラアフリカ、タンザニア、アフリカ稲作振興のための共同体(CARD)"}]},"item_language":{"attribute_name":"言語","attribute_value_mlt":[{"subitem_language":"eng"}]},"item_resource_type":{"attribute_name":"item_resource_type","attribute_value_mlt":[{"resourcetype":"departmental bulletin paper","resourceuri":"http://purl.org/coar/resource_type/c_6501"}]},"item_title":"How has Rice Production in Sub-Saharan Africa Expanded? A Comparison of Growth Rates Before and After CARD Implementation and the Case of Tanzania","item_titles":{"attribute_name":"タイトル","attribute_value_mlt":[{"subitem_title":"How has Rice Production in Sub-Saharan Africa Expanded? A Comparison of Growth Rates Before and After CARD Implementation and the Case of Tanzania","subitem_title_language":"en"}]},"item_type_id":"10002","owner":"18","path":["674"],"pubdate":{"attribute_name":"公開日","attribute_value":"2024-03-01"},"publish_date":"2024-03-01","publish_status":"0","recid":"2000069","relation_version_is_last":true,"title":["How has Rice Production in Sub-Saharan Africa Expanded? A Comparison of Growth Rates Before and After CARD Implementation and the Case of Tanzania"],"weko_creator_id":"18","weko_shared_id":-1},"updated":"2025-04-16T04:34:41.959528+00:00"}