The natural environment surrounding

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From now about 6, 000 years ago of the Jomon period the previous fiscal year, melting glaciers due to climate warming of the global scale, sea level rises close to 10m, the coastline had penetrated deep into the land. Middle Jomon period since the second half, the climate is colder coastline will begin to retreat gradually.

Is the location where you land of with the retreat of the coastline alluvial plain is formed, also where the sea has been left behind, it will become the tidal flats and lakes. Through the early from around the end of the Jomon Yayoi era, these offlap is believed to further advanced.
Emergent wetlands and alluvial plains by regression sea became a great arable land for the early paddy rice cultivation. Settlements will now advance to the plains from the plateau. With the start and progress of rice, it will be a large-scale deforestation is carried out. Farm tools necessary to carry out the rice, the demand of the sheet pile, such as wood needed to make the paddy fields will increase by leaps and bounds. Northern Kyushu is also the bold type clam blade stone axes of Fukuoka Prefecture Imayama production necessary in order to cut down trees became popular in a wide area in the provinces, it would be a sign of this situation. Deforestation, Yayoi era since the mid of settlements will increase rapidly in the West of the plains, are considered went further progress.

However, such a logging caused the devastation of the forest, is not seen evidence that went decisively destroy the natural environment. Yayoi era is plowed to create a paddy field in the alluvial plain formed by the changes in the natural environment since the Jomon period, life settlements to low on the plateau of its vicinity, necessary for life from the forest toward the mountain from behind the hills of obtaining only of wood and materials, this was a true long era prototype of land use was born rooted in Japan.





从现在约6万年前的绳文时代上一财年中,冰川融化,由于全球范围内的气候变暖,海平面上升接近10M,海岸线已经渗透进深的土地。中东绳文时代下半年以来,气候寒冷的海岸线将开始逐步撤退。

在形成,你的土地与海岸线冲积平原撤退的位置,也是那里的海已经掉队,它将成为滩涂和湖泊。通过各地的绳文弥生时代的结束初期,这些退覆被认为是进一步推进。
急诊湿地和回归海冲积平原成为了早期的水稻栽培很大的耕地。现在定居点将提前到从高原平原。与启动和水稻的进展,这将是一个大规模砍伐森林中进行。需要必要开展水稻,板桩的需求农具,如木材,使稻田将实现跨越式增长。九州北部也有必要福冈县今山生产,以砍伐树木在各省大面积流行的黑体字蛤刃石斧,这将是这种情况的标志。砍伐森林,弥生时代,因为定居点的将在平原西部快速增长,被认为是更进一步的进展。

然而,这样一个日志引起了森林的破坏,是没有看到证据表明,果断去了破坏自然环境。弥生时代犁在由向山森林,因为绳文时代的变化在自然环境,生活住区低其附近的高原,生命所需从山上背后形成的冲积平原营造水田只有获得木材和材料,这是土地使用的真实时代长雏形诞生植根于日本。

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