安徽农业科学2017,Vol.45Issue(21):59-64,6.
2000-2016年朝鲜植被覆盖动态变化及其驱动力研究
Dynamic Changes of Vegetation Coverage and Its Driving Force in North Korea during 2000-2016
摘要
Abstract
The spatial distribution pattern of vegetation of North Korea was explored based on MODIS NDVI.The dynamic change trend of vegetation cover in North Korea during 2000-2016 was fitted.The correlation between NDVI and temperature,precipitation in North Korea by Pearson correlation analysis was analyzed,on the basis of that,the law and cause of dynamic change in North Korea during 2000-2016 was summarized.The results showed that the spatial distribution of vegetation cover in North Korea was uneven.The NDVI value was highest in the northern plateau and mountain areas,as well as in the hilly and hilly areas in the central and eastern part of the country.The NDVI values were lowest in the coastal areas of the west and south,the plains and the eastern coastal areas.Vegetation cover of the overall was reducing,vegetation cover of the local was increasing and the spatial distribution of vegetation cover was different significantly.The area of reduced was 39 161 km2,accounting for 31.9% of the land,the area of increased was 28 972 km2,accounting for 23.6% of the land.The growth season showed less trend in each month,the largest magnitude of the reduced in May ,followed by July,the least magnitude of the reduced in September.Changes of vegetation coverage was related to temperature and precipitation,and had a certain degree of lag.The influence of temperature was slightly larger than the precipitation,within the year,there was a significant correlation between the vegetation of September and the temperature,and there was also a significant correlation between the vegetation of September and the precipitation.关键词
MODISNDVI/植被覆盖/动态变化/气候因子/朝鲜Key words
MODIS NDVI/Coverage of vegetation/Dynamic change/Climate factor/North Korea分类
农业科技引用本文复制引用
戚德康,南颖,李胜楠,王健文..2000-2016年朝鲜植被覆盖动态变化及其驱动力研究[J].安徽农业科学,2017,45(21):59-64,6.基金项目
国家自然科学基金项目:(41071333). (41071333)