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Title :サトウキビ生産法人に集積された圃場の分散が生産性に及ぼす影響 : 地理情報システムを用いた分析
Authors :鹿内, 健志
南, 孝幸
官, 森林
上野, 正実
Authors alternative :Shikanai, Takeshi
Minami, Takayuki
Guan, Senlin
Ueno, Masami
Issue Date :Mar-2007
Abstract :沖縄県におけるサトウキビ生産の担い手として設立が推進されたサトウキビ生産法人は,圃場分散と土地生産性の低さの問題を抱えている.サトウキビ生産法人の圃場は広域に分散しており,作業効率が低下し適期作業に大幅な遅れが生じている.また,単収は県の平均単収を下回っているのが現状である.本研究では集積された農地の分散を示す地理的な指標をGISにより解析し,これらの指標と単収との関係を調査し,圃場分散が生産性に及ぼす影響を検討した.分散を表す地理的な指標として周囲圃場面積,事務所からの距離,圃場面積の3つの指標を提案したが,周囲圃場面積と単収については正の相関があり,事務所からの距離と単収については,負の相関があることが示され,圃場分散がサトウキビ収量に影響を及ぼしている可能性があると示唆された.
Although sugarcane agricultural production corporations have been established as the leaders of regional farmers to avoid cultivation abandonment, the sugarcane yield of these agricultural production corporations is low and the leased fields managed by these corporations are scattered. Because of the scattered leased fields, the workers of these corporations have to move from field to field for work and thus farm work becomes inefficient. Thus, it is considered that inefficient work results in a rather low yield of sugarcane for these corporations as compared to the average yield in Okinawa. This study aims to ascertain the correlation between the dispersion of farmlands and productivity by investigating the relation between the unit crop yields and some factors of the evaluation of the geographic condition of the dispersion obtained by the GIS. We proposed three factors of the evaluation of the geographical condition; that is, the area of the farmland, distance of the corporation office, and area of the surrounding farmlands. The area of the surrounding farmlands shows a positive correlation with the unit yields, while the distance of the corporation office shows an inverse correlation with the unit yields. The result shows that the dispersion of the accumulated fields could have some impact on the unit sugarcane yield of the agricultural production corporations.
Type Local :雑誌掲載論文
ISSN :0389-1763
Publisher :日本農作業学会
URI :http://hdl.handle.net/20.500.12000/36346
Citation :農作業研究 = Japanese journal of farm work research Vol.42 no.1 p.29 -36
Appears in Collections:Peer-reviewed Journal Articles (Faculty of Agriculture)

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