Analysis on dynamic change of vegetation coverage based on NDVI:A case study of Beijing-Tianjin-Hebei
In order to study the condition of vegetation cover and its change trend influenced by human activities, by calculating NDVI of five-day synthetic data of geospatial data cloud and MODIS data of Beijing-Tianjin-Hebei in 2005, 2010 and 2015, the vegetation coverage is calculated by the Mixed-pixel dichotomy model, the changes of vegetation coverage at different periods and different data sources are compared.According to the change of vegetation coverage: from the time point of view, From 2005 to 2015, the area of vegetation coverage of middle coverage, low coverage and extremely-low coverage types increased, while the high and middle-high coverage types decreased in Beijing-Tianjin-Hebei;from space,the total area of vegetation coverage increased, while the area of vegetation coverage decreased in central urban area in Beijing-Tianjin-Hebei, which is closely related to the construction of the national Three-North Shelterbelt and attention to vegetation protection and rapid urbanization in recent years.
Y.Mu C.S.Zhang X.Q.Wang J.W.Zhang X.Y.Zong
College of Geomatics, Xian University of Science and Technology, Xian, China
国际会议
The 2nd International Symposium on Land Reclamation and Ecological Restoration (第二届国际土地复垦与生态修复学术研讨会)
西安
英文
179-183
2017-10-20（万方平台首次上网日期，不代表论文的发表时间）