Humus was analyzed using soil chemical methods, which is an organic compound contained in the soil. Humus is composed of humic acid, fulvic acid and humin while the ratio of humus is different depending on the environment of the time when the soil was formed. Humus was analyzed using the Ponomareva method, which is a modified version of the Tyurin method. The total organic carbons and the humic acid, fulvic acid and humin contained in the organic carbons in the soil were measured. The ratio of humic acid and fulvic acid (Cha:Cfa) were closely related to the climatic environment. Results of analyzing humus showed that in the case of paleosoil, humus was detected in all layers at the Dangga site. The sediments of the Dangga site is subdivided into 5layers by its pedogenic characteristics. It was found that the soil of the Dangga site was generally deposited in a stable status. Results of analyzing data of the archaeology and the humus showed that layer 1 formed during the last interglacial, layer 2, 3 formed during last glacial. As results it is suggested that Paleolithic people lived in the three different warm periods of the late Pleistocene.
Abstract
1. 머리말
2. 연구지역 개관
3. 연구방법
4. 분석결과
5. 유적의 기후환경과 문화적 성격 고찰
6. 결론
참고문헌
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