Earth hummocks in Tokachi Plain, Hokkaido

Koaze Takashi, Shimizu Chousei, Sawada Yuki, Takeda Kazuo, KAWAUCHI Kazuhiro

doi:10.14866/ajg.2018s.0_000155

Bibliographic Information

Other Title

十勝平野のアースハンモック

Abstract

Earth hummocks are distributed sporadically on the rather ill-drained waste lands in Tokachi Plain, eastern Hokkaido where are frost susceptive volcanic soil developed in cold climate.<br><br>Recently the earth hummocks have been gradually transformed into inactive forms except a few places, according to decrease of intensive frost heave by reduction of soil moisture and groundcover have been replaced from low-growing grasses to thicket of bamboo grass and tall weeds mixed with shrubs. The causes of these environmental changes in ground freeze are seems to be lowering of underground water level by public works and also rise in temperature during recent several decades.

Journal

Proceedings of the General Meeting of the Association of Japanese Geographers

Proceedings of the General Meeting of the Association of Japanese Geographers 2018s (0), 000155-, 2018

The Association of Japanese Geographers

Keywords

Details 詳細情報について

CRID: 1390282763019213184

NII Article ID: 130007411934

DOI: 10.14866/ajg.2018s.0_000155

Text Lang: ja

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JaLC
CiNii Articles

Abstract License Flag: Disallowed

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