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http://dx.doi.org/10.11108/kagis.2019.22.1.168

A Study on the Improvement of Guideline in Digital Forest Type Map  

PARK, Jeong-Mook (Dept. of Forest Management, Division of Forest Sciences, College of Forest and Environmental Sciences, Kangwon National University)
DO, Mi-Ryung (Dept. of Forest Management, Division of Forest Sciences, College of Forest and Environmental Sciences, Kangwon National University)
SIM, Woo-Dam (Dept. of Forest Management, Division of Forest Sciences, College of Forest and Environmental Sciences, Kangwon National University)
LEE, Jung-Soo (Dept. of Forest Management, Division of Forest Sciences, College of Forest and Environmental Sciences, Kangwon National University)
Publication Information
Journal of the Korean Association of Geographic Information Studies / v.22, no.1, 2019 , pp. 168-182 More about this Journal
Abstract
The objectives of this study were to examine the production processes and methods of "Forest Type Map Actualization Production (Database (DB) Construction Work Manual)" (Work Manual) identify issues associated with the production processes and methods, and suggest solutions for them by applying evaluation items to a 1:5k digital forest type map. The evaluation items applied to a forest type map were divided into zoning and attributes, and the issues associated with the production processes and methods of Work Manual were derived through analyzing the characteristics of the stand structure and fragmentation by administrative districts. Korea is divided into five divisions, where one is set as the area changed naturally and the other four areas set as the area changed artificially. The area changed naturally has been updated every five years, and those changed artificially have been updated annually. The fragmentation of South Korea was analyzed in order to examine the consistency of the DB established for each region. The results showed that, in South Korea, the number of patches increased and the mean patch size decreased. As a result, the degree of fragmentation and the complexity of shapes increased. The degree of fragmentation and the complexity of shapes decreased in four regions out of 17 regions (metropolitan cities and provinces). The results indicated that there were spatial variations. The "Forest Classification" defines the minimum area of a zoning as 0.1ha. This study examined the criteria for the minimum area of a zoning by estimating the divided object (polygon unit) in a forest type map. The results of this study revealed that approximately 26% of objects were smaller than the minimum area of a zoning. The results implied that it would be necessary to establish the definition and the regeneration interval of "Areas Changed Artificially and Areas Changed Naturally", and improve the standard for the minimum area of a zoning. Among the attributes of Work Manual, "Species Change" item classifies terrain features into 52 types, and 43 types of them belong to stocking land. This study examined distribution ratios by extracting species information from the forest type map. It was found that each of 23 species, approximately 53% of species, occupied less than 0.1% of Forested land. The top three species were pine and other species. Although undergrowth on unstocked forest land are classified in the terrain feature system, their definition and classification criteria are not established in the "Forest Classification" item. Therefore, it will be needed to reestablish the terrain feature system and set the definitions of undergrowth.
Keywords
Forest; Digital forest type map; Fragmentation; Stand Structure; Guidelines;
Citations & Related Records
Times Cited By KSCI : 4  (Citation Analysis)
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