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TREE HEALTH ANALYSIS AND MAPPING OF FOREST AREAS USING SPECIALIZED GIS DATA
Abstract
This study uses GIS for studying the state of forests, affected by diseases or by pests or have other kind of damages. GIS is an effective tool to examine the phytosanitary status of forests based on existing specialized data from forest management plans and data from alerts submitted to online portal of the Executive Forest Agency, Bulgaria. The spatial GIS analysis of the specialized data for a given forest management unit (State Forestry Enterprise "Chirpan", district Stara Zagora, Bulgaria) is the basis for the creation of summarized and statistical data on the size, type, and spatial distribution of the affected and damaged forest areas. We propose a coefficient for determining the degree of general damage at the forest plantation level. We introduce an automated GIS method for creating a series of combined thematic maps capturing the phytosanitary state of the forest stands. We create interactive maps of the affected areas for professional forest protection workers to use in their fieldwork.
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References16
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