MODIS NPP 원격탐사자료를 이용한 우리나라의 식생과 연강수량과의 관계 초등 분석

Title
MODIS NPP 원격탐사자료를 이용한 우리나라의 식생과 연강수량과의 관계 초등 분석
Other Titles
Preliminary Analysis of the Relationship between Annual Precipitation and Vegetation using MODIS NPP Remotely Sensed Data in Korea
Author(s)
최대규[최대규]최현일김상단[김상단]
Keywords
Annual Precipitation; Net Primary Production; Rainfall Use Efficiency; 연강수량; 순일차생산량; 강수이용효율
Issue Date
201108
Publisher
한국방재학회
Citation
한국방재학회논문집, v.11, no.4, pp.171 - 178
Abstract
Growth of vegetation is closely related with water cycle process. Especially, precipitation is a key factor in inter-annual variability of vegetation. However, there is no quantitative approach to examine the relationship with vegetation and precipitation in Korea. Net Primary Production (NPP) is the difference between organic matter by photosynthesis and respiration. It is commonly used as representative of vegetation quantity. In this study, we used 5 year data of NPP and precipitation from 50 sites across Korea. Even though period of data is too short to define the relationship and NPP data has an uncertainty, our results showed that there is a strong relationship (R²>0.6) between NPP and precipitation at each site. However considering all sites, its correlation is decreased (R²=0.310). We also analyzed the relationship between the Rainfall Use Efficiency and Annual Rainfall, the relationship was not shown clear relationship as determination coefficient, 0.025. The findings in this paper are that it is not easy to show general relationship which can explain Korean vegetation but locally, some places are revealed strong relationship between NPP and precipitation. Therefore locality should be reflected when developing the hydrological model included the ecological components in Korea.
URI
http://hdl.handle.net/YU.REPOSITORY/24653
ISSN
1738-2424
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공과대학 > 건설시스템공학과 > Articles
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