摘要
为研究淮南市森林植被的时空特征变化,在RS技术与GIS技术的支持下,以淮南市2006年、2011年、2016年3个时期的landsat7遥感影像数据为数据源提取归一化植被指数(NDVI),再应用像元二分模型反演植被覆盖度。利用空间分析、植被覆盖度空间分布特征、绿量时间变化、植被覆盖年际变化程度以及植被覆盖的分区统计,对淮南市森林植被的时空变化进行分析,并对森林植被时空变化的原因进行讨论。结果表明:淮南市整体植被环境良好,且研究时段内裸地减少,植被覆盖度上升。
In order to study the temporal and spatial characteristics of forest vegetation in Huainan City,with the support of RS technology and GIS technology,the landsat7 data remote sensing image of Huainan City in 2006,2011 and 2016 are used as the data source to extract the normalized vegetation index(NDVI).Then,the pixel dichotomy model is used to invert the vegetation coverage.Through spatial analysis,spatial distribution characteristics of vegetation coverage,analysis of time variation of three-dimensional green biomass,analysis of interannual variation of vegetation cover,and statistical analysis of vegetation coverage,the temporal and spatial changes of forest vegetation are analyzed as well as the temporal and spatial changes of forest vegetation.The reasons are being discussed.The result shows that the overall vegetation in Huainan City is in good condition,the bare land is reduced and the vegetation coverage is increased during the study period.
作者
李科
王浩
LI Ke;WANG Hao(School of Geodesy and Geomatics,Anhui University of Science and Technology,Huainan 232000,China)
出处
《黑龙江工程学院学报》
CAS
2019年第5期22-26,共5页
Journal of Heilongjiang Institute of Technology
