Quantification of Land Fragmentation Using the Geographical Information System and Evaluation of the Performance of Land Consolidation Bank

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  • GISによる広域的な圃場分散状況の把握と農地中間管理事業の評価

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<p>Land fragmentation is a major obstacle to agricultural productivity improvement in Japan. Land Consolidation Banks (LCBs), which were established in each prefecture of Japan in 2014, aim to facilitate land consolidation and reduce land fragmentation. Many qualitative studies have been conducted to evaluate the performance of LCBs. However, few papers shed empirical light on the relationship between land fragmentation and LCBs due to the lack of adequate data. In this paper, we have created data from a large sample of farm plots in Hyogo Prefecture, processing these data using GIS software to calculate the degree of land fragmentation and quantitatively clarify the effects of the LCB in the prefecture on the improvement of land consolidation. The farmland plot data was created in the following manner : Data from the “Agricultural Land Information System” was collected using the web scraping method, these data then being attached to cadaster data in the targeted areas. The large sample of farmersʼ plots revealed that farmers who cultivate relatively large areas of farmland in the targeted areas had succeeded in enlarging their average plot size but had not succeeded in reducing the distance between plots. In addition, we applied propensity score matching to evaluate the impacts of the LCB in Hyogo Prefecture on the enlargement of farm size and on the reduction of land fragmentation. The econometric analysis based on community level data showed that the LCB has contributed to the transfer of farmland but has not contributed to the consolidation of spatially dispersed plots.</p>

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