每年早春播种季节 ,日本最北部的北海道Ｔｏｋａｃｈｉ地区常发生强烈的风蚀。风障可以减少风蚀 ,但由于受当前农业政策影响 ,农地及农业机械化规模不断扩大 ,风障不断减少。风障不仅对农地的保护十分重要 ,而且对保护自然景观很重要。研究的范围是Ｍｅｍｕｒｏ镇 ,为Ｔｏｋａ During the early spring seeding season, strong wind erosion frequently occurs in Tokachi, Hokkaido, the northernmost part of Japan. Wind barriers can reduce wind erosion, but due to the current agricultural policies, the scale of farmland and agricultural mechanization has been expanding, and wind barriers have been declining. Wind barriers are not only important for the protection of farmland, but also important for the protection of the natural landscape. The scope of the study is Memuro, the town of Toka