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- 저자 : 장용선(Zhang, Y.S.) (검색결과 252 건)
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해성단구지에서 발달된 강릉통의 이쇄경반층(Btx) 토양의 산화.환원적 특성에 관한 연구
장용선,문용희,손연규,현병근,박찬원,윤성원,Zhang, Yong-Seon,Moon, Yong-Hee,Sonn, Yeon-Kyu,Hyun, Byung-Keun,Park, Chan-Won,Yoon, Sung-Won 대한자원환경지질학회 2012 자원환경지질 Vol.45 No.2
Soil pan typically presents the problems in soil water movement or in aeration which is not appropriate for a plant root growth, In this study physico-chemical characteristics of soils and micromorphological characteristic of clay accumulated zone were investigated to identify redox characteristic and evolution of a fragipan of Gangreung series commonly developed in coastal terraces. Gangreung series is classified as Aquic Fragiudalfs according to the USDA soil taxonomy. It is known that sedimentary ocean floor results in soil pan having parallel liner soil structure due to landscape evolution around 200 to 250 million years ago. it is considered that illite, kaolinite, and vermiculite are major clay minerals contained in a fragipan of Gangreung series. Mixed gray and reddish brown colored band around soil pores was found and would be the redoxmorphic features of fragipan. It is possibly due to accumulated illuvial clay and ferriargillans in soil pores and aggregates in reducing conditions eluding ferrous material. Therefore, mixed colored band around pores in soils of Gangreung series would be developed from the eluted ferrous materials which were accumulated in fragipan during the emerged land formation.
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