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首页> 外文期刊>農業土木学会論文集 >Changes of form and size of field lot on rice paddy in Ishikari mire region, Hokkaido, Japan
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Changes of form and size of field lot on rice paddy in Ishikari mire region, Hokkaido, Japan

机译：日本北海道伊希卡里米尔地区稻田稻田形式和规模的变化

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摘要

History and cause of change in form and size of field lot on several rice paddy area in Ishikari mire region, Hokkaido, Japan, were examined with reference to settlement period, rice paddy development period, and .soil classification. Form of field lot was affected by file differences in starting period of settlement and development of rice paddy, and it is especially regulated by the frame of settlement block. However. the farm land consolidation projects which were carried during 1970's, have changed the form of field lot itself dramatically. As a result of these projects, the form of field lot is almost completed as the same form with nowadays. With these projects as a turning point, field lot size has been standardized, and local difference has been disappeared. Further enlargement of field lot size is now under progress in some farm blocks of several areas, but its progress is moderate than the change happened in 1970's. Moreover, some area with peat shows decrease in the rate of large (more than 1 ha) farm area.
机译：日本北海道北海道米尔米勒地区几种稻田地区变化的历史与原因，参考定居期，稻田开发期和。对分类进行了研究。现场批次的形式受到稻米沉降和开发的起动期的文件差异的影响，特别是由结算块框架调节。然而。 1970年代携带的农场土地合并项目已急剧改变了现场批次本身的形式。由于这些项目，现场批次的形式几乎完成了与现在与相同的形式。随着这些项目作为转折点，场批量大小已经标准化，局部差异已经消失。在几个地区的一些农场块中进一步扩大了现场批大分比，但它的进展比1970年代发生的变化为中势。此外，泥炭的一些区域显示出大（超过1公顷）农场区域的速率下降。

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