N. Buthelezi‐Dube, P. Muchaonyerwa, J. Hughes, A. Modi, K. Caister
{"title":"南非夸祖鲁-纳塔尔省用于消费、治疗和化妆品的土壤材料的性质和土著知识","authors":"N. Buthelezi‐Dube, P. Muchaonyerwa, J. Hughes, A. Modi, K. Caister","doi":"10.37501/soilsa/157408","DOIUrl":null,"url":null,"abstract":"Ethnopedological studies focus on agricultural soils resulting in undervaluation of non-agricultural soil materials during land classi fi cation. In this study, ethnographic and ethnopedologic methods were used to obtain local knowledge and gain in-depth understanding of non-agricultural soils, their mineralogical and elemental composition relating to application in geophagy, healing and cosmetic purposes in two villages in KwaZulu-Natal, South Africa. In each village a questionnaire was administered to fi fty randomly selected individuals from which ten knowledgeable volunteers (in-cluding eight geophagists from two villages) provided details on the selection criteria, the desired properties and why the soils performed the claimed role. Users based their selection on macromor-phological features (e.g. colour, texture and location within the soil) and indigenous knowledge. Geophagic materials were mainly sourced from C horizons. They were mostly fi ne-grained with mica, kaolinite and quartz, and elements such as copper (Cu), zinc (Zn), cobalt (Co) and lead (Pb). Natural pigments, such as iron oxides in highly weathered soils, were recognised as sunscreen materials. Although the mechanisms were not understood by users, laboratory analyses showed that the mineralogical and chemical properties of the soil materials played a crucial role. The sunscreen and healing capabilities of these soils were related to high contents of titanium (TiO 2 ) and iron (Fe 2 O 3 ) and the presence of kaolinite. Further appraisal of these soil materials is necessary for their conservation and inclusion in land classi fi cation.","PeriodicalId":44772,"journal":{"name":"Soil Science Annual","volume":null,"pages":null},"PeriodicalIF":1.4000,"publicationDate":"2022-12-12","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":"1","resultStr":"{\"title\":\"Properties and indigenous knowledge of soil materials used for consumption, healing and cosmetics in KwaZulu-Natal, South Africa\",\"authors\":\"N. Buthelezi‐Dube, P. Muchaonyerwa, J. Hughes, A. Modi, K. Caister\",\"doi\":\"10.37501/soilsa/157408\",\"DOIUrl\":null,\"url\":null,\"abstract\":\"Ethnopedological studies focus on agricultural soils resulting in undervaluation of non-agricultural soil materials during land classi fi cation. In this study, ethnographic and ethnopedologic methods were used to obtain local knowledge and gain in-depth understanding of non-agricultural soils, their mineralogical and elemental composition relating to application in geophagy, healing and cosmetic purposes in two villages in KwaZulu-Natal, South Africa. In each village a questionnaire was administered to fi fty randomly selected individuals from which ten knowledgeable volunteers (in-cluding eight geophagists from two villages) provided details on the selection criteria, the desired properties and why the soils performed the claimed role. Users based their selection on macromor-phological features (e.g. colour, texture and location within the soil) and indigenous knowledge. Geophagic materials were mainly sourced from C horizons. They were mostly fi ne-grained with mica, kaolinite and quartz, and elements such as copper (Cu), zinc (Zn), cobalt (Co) and lead (Pb). Natural pigments, such as iron oxides in highly weathered soils, were recognised as sunscreen materials. Although the mechanisms were not understood by users, laboratory analyses showed that the mineralogical and chemical properties of the soil materials played a crucial role. The sunscreen and healing capabilities of these soils were related to high contents of titanium (TiO 2 ) and iron (Fe 2 O 3 ) and the presence of kaolinite. 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Properties and indigenous knowledge of soil materials used for consumption, healing and cosmetics in KwaZulu-Natal, South Africa
Ethnopedological studies focus on agricultural soils resulting in undervaluation of non-agricultural soil materials during land classi fi cation. In this study, ethnographic and ethnopedologic methods were used to obtain local knowledge and gain in-depth understanding of non-agricultural soils, their mineralogical and elemental composition relating to application in geophagy, healing and cosmetic purposes in two villages in KwaZulu-Natal, South Africa. In each village a questionnaire was administered to fi fty randomly selected individuals from which ten knowledgeable volunteers (in-cluding eight geophagists from two villages) provided details on the selection criteria, the desired properties and why the soils performed the claimed role. Users based their selection on macromor-phological features (e.g. colour, texture and location within the soil) and indigenous knowledge. Geophagic materials were mainly sourced from C horizons. They were mostly fi ne-grained with mica, kaolinite and quartz, and elements such as copper (Cu), zinc (Zn), cobalt (Co) and lead (Pb). Natural pigments, such as iron oxides in highly weathered soils, were recognised as sunscreen materials. Although the mechanisms were not understood by users, laboratory analyses showed that the mineralogical and chemical properties of the soil materials played a crucial role. The sunscreen and healing capabilities of these soils were related to high contents of titanium (TiO 2 ) and iron (Fe 2 O 3 ) and the presence of kaolinite. Further appraisal of these soil materials is necessary for their conservation and inclusion in land classi fi cation.
期刊介绍:
Soil Science Annual journal is a continuation of the “Roczniki Gleboznawcze” – the journal of the Polish Society of Soil Science first published in 1950. Soil Science Annual is a quarterly devoted to a broad spectrum of issues relating to the soil environment. From 2012, the journal is published in the open access system by the Sciendo (De Gruyter).