群馬県吉井町上奥平における耕作放棄地の拡大とその背景 [in Japanese] The expansion and background of the abandoned cultivated land in Kamiokudaira, Yoshii Town, Gunma Pref. [in Japanese]
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日本において耕作放棄地の面積は拡大の一途をたどっている. 本研究では, 耕作放棄地の拡大には土地の履歴が関連していると考え, 群馬県吉井町上奥平の水田所有農家を対象として, 耕作放棄と土地の履歴との関係を中心に考察を試みた. その結果, 研究対象地域の耕作放棄地は土地条件の悪い農地や, 農地改革によって解放された農地の多い谷や支谷に集中していた. また, 土地台帳から土地の履歴と耕作放棄の関係をみると, 違法開墾地の100%, 農地解放地の73%, 荒地免租年期地の53%, 不在村土地所有者の農地の51%, 地目変換地の47%が耕作放棄されていた. また, 耕作放棄の背景として, 農業労働力の弱体化, 農地の貸借・売買を通じた土地の流動性の低さ, ゴルフ場開発に伴う土地買収, 米の生産調整政策や中山間地域等直接支払制度などの農業政策の影響が存在することが明らかとなった.
The purpose of this paper is to explain the characteristics of abandoned cultivated lands and the background of expansion of abandoned cultivated lands in Kami-okudaira, Yoshii town, Gunma Prefecture, by focusing on paddy fields. Kamiokudaira consists of four valleys from valley A to valley D. Most upper-grade paddy fields are located in valley A and valley B, and most of paddy fields in these valleys have not been abandoned. Valley A and valley B roughly coincide with the region of supported farmlands of the direct payment measure for hilly and mountainous areas The lands owned by absentee landlords before Land Reform are located in valley C and valley D, and absentee owner ship did not occur in valley A and valley B. Extensive lands liberated by Land Reform are in valley C and D. Most abandoned cultivated lands are located in valley C and valley D and many paddy fields of lower grade are on liberated lands.<br>The following four factors have influenced the expansion of abandoned cultivated lands: 1) weakening of the structure of local farm labor; 2) increased difficulty in finding new lease farmers; 3) temporary registration of cultivated lands for the development of a golf course and freezing of the development program; 4) agricultural policies such as rice production adjustment and defectiveness of the direct payment measure for hilly and mountainous area in Japan.
- Geographical Review of Japan
Geographical Review of Japan (64), 82, 2003-10-11
The Association of Japanese Geographers