An Analysis on Transition of Non-Cultivated Arable Land
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Journal of the Faculty of Environmental Science and Technology, Okayama University Vol.18, No.1, pp.1-17, March 2013 The Management of Arable Land in Japan - An Analysis on Transition of Non-cultivated Arable Land - ICHIMINAMI Fumikazu * and DINCSOY Enver Erdinc ** In Japan, the number of full-time farm households had continued to decrease since the latter halfof20th century. The number of part-time households has been also decreasing remarkably in the last twenty years. Cultivated acreage also aligned with these tendencies and it has decreased. As a result, the farmland which is not cultivated increased and it may also grow into a social problem. Therefore, the present condition and future view of Japanese agriculture was elaborately examined in the study by analyzing the transition of non-cultivated arable lands from a historical perspective. Key words: Non-cultivated arable land, Part-time farm households, Non-farm households, Japan 1 INTRODUCTION economic growth on and after the middle of the 20th The two of the main labor force features of century, the non-cultivated lands have been increasing agriculture in Japan are a small size of management and gradually resulting in a significant decrease of the high rate of the elderly employment and part-time farm number of farm households and farmers. households, etc. Another characteristic of agriculture in The subject of non-cultivated arable land is also Japan is the rice, which planted in the paddy field of examined by researchers from different points. Arizono almost all areas in the plains; and the varieties of 1974 considered the problems of non-cultivated vegetables and fruit trees, which are also grown arable land at Kutsuki-mura, Shiga prefecture mainly intensively. from the land condition, and presupposed that Even though the landscapes of the four seasons are cultivation abandonment of the inferior place had been remarkably different in any rural area, the number of carried out from the 1920s. Arizono 1974 pointed farm households and farmers has decreased gradually, out the decrease of cultivated land in Japan showed 450 and the cultivated acreage under management has also thousands hectares from 1950 to 1970. decreased. Moreover, the area of farmland which is not A series of researches by Takada 2006a, 2006b cultivated and the rate to the cultivated acreage are and Takada 2007a, 2007b have studied the present gradually increasing. The definition of non-cultivated conditions and the backgrounds of non-cultivated arable arable land is the land where the crops are not planted land consistently at the East Japan. Takada 2006a for more than the past one year and there is no clear dealt with Tajima town in Fukushima prefecture and intention which a farmer cultivates again within several Takada 2006b studied Chonan town in Chiba years. prefecture. Moreover, Takada 2007a examined Non-cultivated arable land was added to the non-cultivated arable land by focusing the relation questionnaire items of the census of agriculture and between the ratio of non-cultivated arable land and forestry in Japan in 1975 for the first time. After rapid history of land use. As the background of stopping to cultivate farmland, he considered weakened farm labor * Faculty of environmental science and technology, Okayama force, low rates of the change on land ownership and University land use through lease and dealing of farmland, land ** Department of Banking, School of Applied Sciences, Trakya acquisition by golf course development, the influences University, Turkey of agricultural policy such as production control of rice 1 J. Fac. Environ. Sci. and Tech., Okayama Univ. 18 (1) 2013 and the direct payment system delivered to the hilly Therefore, it seems that there is little research and mountainous area, etc. Takada (2007b) carried which can explain the actual condition of whole out the questionnaire to all municipalities in Japan moderately. Based on such recognition, the Fukushima prefecture, and investigated the actual study tackles to analyze non-cultivated arable land condition of non- cultivated arable land. He pointed in Japan. This research specifies the local difference out that the main causes to generate non-cultivated of the area and the percentage of non-cultivated arable land were the shortage of agricultural arable land, and examines those meanings. successors, the aging of farmers, the influence of production control of rice, and a decline of sericulture, 2 AREA OF ARABLE LAND AND THE NUMBER etc. Seto et al. (2009) reported the damages of OF FARM HOUSEHOLDS buildings, of roads, and of slopes around the epicentral area immediately after an occurrence of The cultivated acreage in the early 20th century the mid Niigata prefecture earthquake. is about 6 million ha in Japan, and the range of Furthermore, they surveyed the increase in increase and decrease was small (Fig. 1). There was non-cultivated arable land by seismic damage. not a big difference between the area of paddy fields Morimoto (1991, 1993, 2007) announced several and upland fields. However, cultivated acreage papers of non-cultivated arable land in the Kanto decreases to about 5 million ha in the second half of district. Morimoto (1991, 1993) explained that the the 20th century, and a downward tendency became most significant cause of the increase in fallow and remarkable especially in 1970 and afterwards. abandoned cultivated land is the labor shortage Commercial farm households had 318 million ha of which stems from specialization of intensive cultivated acreage in 2010. It means that it was vegetable cultivation in terms of minute field mostly halved as compared with 100 years ago. surveys and interviews as case studies. Using GIS Paddy area of about 3 million ha or more had technique with the rural community statistics of the been maintained till 1970. However, after the agricultural censuses in 1975-2000, Morimoto (2007) production control policy of rice started, the showed two dimensional distribution of the ratios of reduction of the area of paddy fields became non-cultivated arable land in the Kanto district and remarkable. The area of upland fields also continues examined the co-variation between these ratios and to decrease consistently and the area of upland fields several environmental indices such as the altitude of in 2010 was below half of that of 100 years ago. The rural settlement, the slope angle of farmland, and area of orchard exceeded 0.4 million ha in 1970 and the distance from the center of Tokyo. 1980, then, it continues to decrease gradually. Teratoko (2009) analyzed the expansion of Fig. 2-a shows the number of farm households in non-cultivated arable land in a marginal settlement Japan after 1910. The number of full-time farm in Kyushu paying attention to the decision-making households had been greater than the number of of management of each farm households. part-time farm households till 1930. In 1941, the As mentioned above, the research of number of farm households decreased because of World non-cultivated arable land has been done to some War, the number of part-time farm households almost extent. Those most are, however, detailed case doubled. In 1950, the number of farm households was studies in a narrow area like a rural settlement. about 6.18 million, and the number of full-time farm 2 Fumikazu ICHIMINAMI et al. / Transition of Non-cultivated Arable Land households was almost equal to the part-time farm million, and it has continued to decrease thereafter. In the households. The number of farm households has 1980s, the definition of farm households changed1), then, decreased steadily since the latter half of 20th century. commercial farm households have been mainly Reduction in the number of full-time farm households in investigated in Japan. Therefore, the item of census on the 1960s was particularly remarkable. In the 1970s, the subsistence farm households has been extremely number of full-time farm households was less than 1 simplified. ፧᎗ᎨᎫᎫᏀ፧ᎭᎰᎬᎳᎫᎺ ፧ᎷᎳᎨᎵᎫ፧ᎭᎰᎬᎳᎫᎺ ፧᎖ᎹᎪᎯᎨᎹᎫ ፷፷ ፹ᎀ ፺፹ ፼፷፷ ፻ ፺፼ ፺፷፼ ፹፸ ፹ᎀ ፻ ፹፼ ፹ ፹ ፻፷፷ ፹፷፺ ፸፻ ፸ᎀ፺ ፹፷ ፸፻ ፸፻ ፺፷፷ ፸፺፼ ፸፺፹ ፸፸ᎀ ፹፷፷ ፹ᎀ፷ ፺፷፹ ፺፹፷ ፺፸ ፹ ፹ᎀ ፺፷፼ ፯፧ᎬᎵ፧ᎻᎯᎶᎼᎺᎨᎵᎫ፧ᎯᎨ፧፰ ፹ ፹፼፻ ፹፹ ፸፷፷ ፹፸ ፸ᎀ ᎯᎬ፧ᎨᎹᎬᎨ፧ᎶᎭ፧ᎪᎼᎳᎻᎰᎽᎨᎻᎬᎫ፧ᎳᎨᎵᎫ፧ᎰᎵ፧᎑ᎨᎷᎨᎵ ፷ ፸ᎀ፸፷ ፸ᎀ፸ᎀ ፸ᎀ፺፷ ፸ᎀ፻፸ ፸ᎀ፼፷ ፸ᎀ፷ ፸ᎀ፷ ፸ᎀ፷ ፸ᎀᎀ፷ ፹፷፷፷ ፹፷፷፷፧Ꭺ፵ ፹፷፸፷፧Ꭺ፵ Fig. 1 Area of cultivated land in Japan (Source: Census of agriculture and forestry in Japan) Note: “c” indicates only commercial farm households and before 1941, the area of orchard had been included in upland fields. ፧ᎯᎬ፧᎕ᎼᎴᎩᎬᎹ፧ᎶᎭ፧᎗ᎨᎹᎻ፴ᎻᎰᎴᎬ፧ᎍᎨᎹᎴ፧ᎏᎶᎼᎺᎬᎯᎶᎳᎫᎺ፧፯፧ᎬᎵ፧ᎻᎯᎶᎼᎺᎨᎵᎫ፧፰ ፧ᎯᎬ፧᎕ᎼᎴᎩᎬᎹ፧ᎶᎭ፧ᎍᎼᎳᎳ፴ᎻᎰᎴᎬ፧ᎍᎨᎹᎴ፧ᎏᎶᎼᎺᎬᎯᎶᎳᎫᎺ፧፯፧ᎬᎵ፧ᎻᎯᎶᎼᎺᎨᎵᎫ፧፰ ፷፷ ፷፷ ፼፷፷ ፸፼ ፸፹ ፸፻ ፺፷ᎀ ፻፷፷ ፺፸ᎀ ፺ᎀ ፺፷፷ ፻፼ ፻፷፻ ፻፷፻ ፹፷፷ ፻፷፻ ፧፯፧ᎬᎵ፧ᎻᎯᎶᎼᎺᎨᎵᎫ፧፰ ፺ᎀ ፺፻ ፹፼፷ ፺፷ᎀ ፸ᎀ፸ ፸፷፷ ፹፺፷ ፹፷ ፸፸ ፻ ፹ ፹ ፷ ፻ ፻፺ ፻፼ ᎯᎬ፧᎕ᎼᎴᎩᎬᎹ፧ᎶᎭ፧ᎍᎨᎹᎴ፧ᎏᎶᎼᎺᎬᎯᎶᎳᎫᎺ፧ᎰᎵ፧᎑ᎨᎷᎨᎵ ፸ᎀ፸፷ ፸ᎀ፸ᎀ ፸ᎀ፺፷ ፸ᎀ፻፸ ፸ᎀ፼፷ ፸ᎀ፷ ፸ᎀ፷ ፸ᎀ፷ ፸ᎀ፷፧፱ ፸ᎀᎀ፷፧Ꭺ፵ ፹፷፷፷፧Ꭺ፵ ፹፷፸፷፧Ꭺ፵ Fig. 2-a Number of farm households in Japan after 1910 (Source: Census of agriculture and forestry in Japan) Notes: “*” is the definition of farm households changed from the previous one after 1980. “c” indicates only commercial farm households. 3 J. Fac. Environ. Sci. and Tech., Okayama Univ. 18 (1) 2013 ፧፧᎗ᎨᎹᎻ፴ᎻᎰᎴᎬ፧ᎭᎨᎹᎴ፧ᎯᎶᎼᎺᎬᎯᎶᎳᎫᎺ፧፯፧᎔ᎨᎰᎵᎳᏀ፧ᎶᎻᎯᎬᎹ፧ᎱᎶᎩᎺ፧፰ ፧፧᎗ᎨᎹᎻ፴ᎻᎰᎴᎬ፧ᎭᎨᎹᎴ፧ᎯᎶᎼᎺᎬᎯᎶᎳᎫᎺ፧፯፧᎔ᎨᎰᎵᎳᏀ፧ᎭᎨᎹᎴᎰᎵᎮ፧፰ ፧፧ᎍᎼᎳᎳ፴ᎻᎰᎴᎬ፧ᎭᎨᎹᎴ፧ᎯᎶᎼᎺᎬᎯᎶᎳᎫᎺ፧፧ ፷፷፷፷፷፷ ፸፺፺ᎀ፺ ፷፷፷፷፷፷ ᎀ፼፷፼፼ᎀ ፸፺፷፼ ፹፺፼፺ ፺፷ᎀ፹፷ ፼፷፷፷፷፷፷ ፸፸፼፻፹፹ ፸ᎀ፻፹፸ ፹፻፺፹ᎀ፼ ፺፷፺፼ᎀᎀ ፻፷፷፷፷፷፷ ፸፻፷ᎀᎀ ፸፼፺፸፷፻ ፹፷፺፺፺፷ ፹፳ᎀ፻፳፼፹ ፺፷፷፷፷፷፷ ፹፷፻፷፸፷፺ ፺፹፻፼ᎀ ፹፹፻፼፷ ፹፷፷፺ ፹፷፷፷፷፷፷ ፸፸፻፷ ፹፺፷፺ᎀ፷፸ ፺፷፺ ፹፷፸፹፻ ፸፷፷፷፷፷፷ ፸፹፼፸ᎀ ፸፷፷፹፹፹