Soil characteristics associated with agricultural enclosures (Manavai) on Rapa Nui

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dc.contributor.advisorHunt, Terry
dc.contributor.advisorDeenik, Jonathan
dc.contributor.authorWofford, Gabriel
dc.contributor.departmentOceanography
dc.contributor.departmentGlobal Environmental Science
dc.date.accessioned2020-08-19T00:00:35Z
dc.date.available2020-08-19T00:00:35Z
dc.date.issued2006
dc.description.courseOCN 499 - Undergraduate Thesis
dc.identifier.urihttp://hdl.handle.net/10125/69409
dc.publisher.placeHonolulu
dc.subjectsoil
dc.subjectchemistry
dc.titleSoil characteristics associated with agricultural enclosures (Manavai) on Rapa Nui
dc.typeThesis
dcterms.abstractSome scholars argue that human-induced environmental changes on Rapa Nui (Easter Island) led to the collapse of the island’s population and its culture. This project investigates changes to agricultural soils. Sediment samples were taken from several manavai, agricultural enclosures, at Maitaki Te Moa and Anakena. Samples were taken both inside and outside the manavai to test soils associated with agricultural use. Sediment samples were analyzed for several properties: pH, percent nitrogen (%N), percent organic carbon (%OC), and the cations phosphorus (P), potassium (K), calcium (Ca), and magnesium (Mg). These data were indicative of changing soil properties and can show human alterations. I tested the null hypotheses to compare soils inside and outside manavai; in the event of a significant difference the hypothesis was rejected, indicating anthropogenic alterations. Overall trends indicate a major difference in soils from the two regions as well as human influences inside the manavai.
dcterms.extent46 pages
dcterms.languageEnglish
dcterms.publisherUniversity of Hawaiʻi at Mānoa
dcterms.rightsAll UHM dissertations and theses are protected by copyright. They may be viewed from this source for any purpose, but reproduction or distribution in any format is prohibited without written permission from the copyright owner.
dcterms.rightsholderWofford, Gabriel
dcterms.typeText

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