Studies on classification, dating and genetic environments of paleosols in cold climatic regions, north Japan

日本北部寒冷气候地区古土壤的分类、年代测定和成因环境研究

• 批准号: 62480049
• 负责人: KONDO Yuko
• 金额: $ 2.11万
• 依托单位: Obihiro University of Agriculture and Veterinary Medicine
• 依托单位国家: 日本
• 项目类别: Grant-in-Aid for General Scientific Research (B)
• 财政年份: 1987
• 资助国家: 日本
• 起止时间: 1987 至 1988
• 项目状态: 已结题
• 来源: https://kaken.nii.ac.jp/en/grant/KAKENHI-PROJECT-62480049/
• 关键词: Cold climatic region; Periglacial paleosols; Permafrost; テフロクロノロジー; 古土壌; テフロクロノジー; 寒冷気候の古土壌; 古土壌の分類; 古土壌の堆積年代; 古土壌の生成環境; 土壌生成分類

The buried periglacial paleosols, involutions and earth hummocks, are often observed in Hokkaido and northeastern honshu, north Japan. The tephrochronological studies of the Late Pleistocene periglacial phenomena are carried out and the paleopedology in the investigation area is also discussed.In the Tokachi Plain of the eastern Hokkaido, fossil periglacial paleosols in the Late Pleistocene such as involutions were found at many places in the buried volcanic ash soils. Ages of these pale-osols are considered to be well correlative to the cold climatic stages of the Late Pleistocene revealed by plant opal analyses and by floral assemblages.A sporadic permafrost is distributed in the vicinity of Tokachi-mitsumata, northernmost Tokachi District. This relict permafrost (ca.1.3-4.0m deep and ca.26,500m^2 in area) is know only on the NNW steep slope of above 830-886m in altitude. Since the ^<14>C dating made on wood sample collected in the lowermost level of the frozen layer indicate 4,540 105 yrs. B.P.. Annual soil temperature at 0.5m depth is -4.3゜C.The morphology and nature of the involutions in the buried volcanic ash soils, sporadic permafrost and earth hummocks; and their geographical distribution are briefly given in this report.

埋葬的古植物，互动和地球鹰嘴豆岩在北海道和北部北部honshu中被安置，tephrochr。在火山灰分中，浅绿色的ASE年龄良好，被认为是play骨的犯罪阶段。在面积为40m的26,500m^2）仅在高于830-886m的NNW陡坡上，高度为540 105年。本报告简短地给出了形态和自然的火山灰土壤，零星的多年冻土和地球。

项目成果

近堂祐弘: ペドロジスト. 31. 104-115 (1987)

近藤雄弘：土壤学家。31. 104-115 (1987)

Kondo,R.: Proceedings of the 9th International Soil Classification Workshop.(1988)

Kondo,R.：第九届国际土壤分类研讨会论文集。（1988）

日本土壌肥料科学会北海道支部;編: "北海道農業と土壌肥料1987" 財団法人北農会, 475 (1987)

日本土壤肥料学会北海道分会编：《北海道农业与土壤肥料1987》北能会财团，475（1987）

日本第四紀学会 編 具塚爽平 他 編: "日本第四紀地図I地形・地質・活構造図" 東京大学出版会, ,119 (1987)

日本第四纪学会（编） Sohei Guzuka 等（编）：“日本第四纪地图 I 地形、地质和活动结构图”，东京大学出版社，119（1987 年）

近堂祐弘,加藤誠,小崎隆: 日本土壌肥料科学会講演要旨集. 35集. (1989)

Yuhiro Kondo、Makoto Kato、Takashi Ozaki：日本土壤肥料学会讲座摘要集第 35 卷。（1989 年）