Teshio Plain - Teshio Heiya

Japanese: 天塩平野 - てしおへいや

A plain in northern Hokkaido overlooking the Sea of Japan. Its area is 230 ^km2 . It is surrounded by the Teshio Mountains to the north, south, and east, and the west is a straight sandy beach facing the Sea of Japan, with several parallel rows of sand dunes at an altitude of 10 to 50 meters. The inside of the dunes has poor drainage, forming the low-lying Sarobetsu Plain, which includes the Penke Swamp, Panke Swamp, and Kabuto Swamp. The peat bogs are extensive, and are covered with plants such as sphagnum moss, cotton grass, yatana, and crowberry, with much of the land unused. In places, there are spruce forests, surrounded by bamboo grass, reeds, and alder. In recent years, development of peat bogs has progressed, and the Maruyama area of Toyotomi Town is a model area. The average monthly temperature from May to October is a cool 14.5°C, so rice cultivation is not carried out, and grassland dairy farming is thriving. There are many ponds and marshes, and more than 100 species of wild birds live there. The Sarobetsu Primeval Flower Garden is famous for its colonies of Hemerocallis sieboldii and Iris amplexicaule. The northern coast area belongs to the Rishiri-Rebun-Sarobetsu National Park.

Source: Encyclopaedia Britannica Concise Encyclopedia About Encyclopaedia Britannica Concise Encyclopedia Information

Japanese:

北海道北部，日本海にのぞむ平野。面積 230km²。北，南，東を天塩山地に囲まれ，西は日本海に面する直線状の砂浜で，標高 10～50mの砂丘が数列並行して発達。砂丘の内側は排水が悪く，低湿なサロベツ原野を形成，ペンケ沼 (とう) ，パンケ沼，兜沼などがある。泥炭地が広く，ミズゴケ，ワタスゲ，ヤチヤナギ，ガンコウランなどの植物が茂り未利用地が多い。ところどころにエゾマツ林とその周囲にササ，ヨシ，ハンノキなどの生えたところもある。近年泥炭地開発が進み，豊富町丸山地区は，そのモデル地区。5～10月の月平均気温は 14.5℃と冷涼なため米作は行われず，草地酪農が盛ん。池沼が多いため，100種類以上の野鳥が生息。エゾキスゲ，ヒオウギアヤメなどの群落で有名なサロベツ原生花園がある。北部海岸一帯は利尻礼文サロベツ国立公園に属する。

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