한국농림기상학회지, 제 8권 제2호(2006) (pISSN 1229-5671, eISSN 2288-1859)
Korean Journal of Agricultural and Forest Meteorology, Vol. 8, No. 2, (2006), pp. 97~106
ⓒ Author(s) 2014. CC Attribution 3.0 License.


환경요인에 의한 잣나무의 지위지수 추정식 개발과 적지 판정

신만용(1), 정일빈(2), 구교상(3), 원형규(3)
(1)국민대학교 산림자원학과, (2)산림조합중앙회 산림자원조사본부, (3)국립산림과학원

(2006년 04월 29일 접수; 2006년 05월 20일 수락)

Development of a Site Index Equation for Pinus koraiensis Based
on Environmental Factors and Estimation of
Productive Areas for Reforestation

Man Yong Shin(1), Il Bin Jung(2), Kyo-Sang Koo(3), Heong-Gyu Won(3)
(1)Department of Forest Resources, Kookmin University, Seoul, Korea
(2)Korea Forest Inventory Center, Korea Forest Corporative Federation, Seoul, Korea
(3)Korea Forest Research Institute, Seoul, Korea

(Received April 29, 2006; Accepted May 20, 2006)

ABSTRACT
Site index is an essential tool to estimate forest productivity. Generally, a site index equation is developed and used from the relationship between stand age and dominant tree heights. However, there is a limit to the use of the site index equation in the application of variable ages, environmental influence, and estimation of site index for the unstocked forest. Therefore, it has been attempted to develop a new site index equation based on various environmental factors including site, climate, and topographical variables. This study was conducted to develop a site index equation based on the relationship between site index and environmental factors for the species of Pinus koraiensis in Yangpyung-Gun, Gyunggi Province. The influence of climatic factors (temperature and solar irradiation ratio), topographical factors (elevation, slope, ratio of slope to valley and aspect) and soil profiles (soil depth by layer and soil consistency) on site index were evaluated by multiple regression analysis. Five environmental factors were selected in the final site index equation for Pinus koraiensis. The site index equation developed in this study was also verified by three evaluation statistics: model’s estimation bias, model’s precision, and mean square error of measurement. Based on the site index equation, the number of productive areas for Pinus koraiensis were estimated by applying GIS technique to digitized forest maps. In addition, the distribution of productive areas was compared with the areas of current distribution of Pinus koraiensis. It is expected that the results obtained in this study could provide valuable information about the amount and distribution of productive areas for Pinus koraiensis reforestation.

Keyword: Site index equation, Climatic factors, Topographical factors, Soil factors, Soil factors, Pinus koraiensis

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