Graduate Project
 

A site suitability model for Acacia koa reforestation on Mauna Kea, Hawai'i, utilizing a GIS

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https://ir.library.oregonstate.edu/concern/graduate_projects/9w032714n

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  • A site suitability analysis for reforestation of the endemic Hawaiian forest tree koa (Acacia koa var. hawaiiensis) was performed. The study will assist the Hawai'i Resource Conservation and Development's (RCD) Forestry Committee in their effort to develop a master land use plan for koa regeneration on the Island of Hawai'i. An ecologically diverse study area of 30,000 acres on the northeast slope of Mauna Kea (2,880-8,440 ft. elevation) was chosen for analysis. Vegetation zones range from rain forest to mixed mesic forest to subalpine shrubland and desert. Of prime interest is a potential reforestation zone situated in the study area on a 6,500 acre parcel, owned by the Department of Hawaiian Home Lands. Utilizing the grid-cell based Geographic Information System (GIS) OSU MAP-for-the-PC, an analytical model was constructed which enables the prediction of land areas best suitable for koa regeneration, given several natural growing condition and cultural variables. Additionally, the model will be used to compare the areas most suitable for koa regeneration with areas of existing koa dominant distributions and with those of scattered or non-existent koa distributions.
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