摘要
基于两年的松嫩平原遥感影像数据,利用FVC指数设计出松嫩平原生态环境图——FVC平均值分布图、FVC差值分布图、FVC趋势动态分布图、空间变异系数分布图,并借助GIS技术对松嫩平原的植被覆盖进行空间格局分析和动态分析。由松嫩平原FVC平均值分布图可以看出,较高度植被覆盖主要分布在松嫩平原的北部、东北以及东南部地区;FVC差值的增加状态明显高于减少状态,可以说明松嫩平原植被的生长趋势在逐年变好;FVC变异系数呈现明显离散。4个模型综合可以看出松嫩平原植被FVC呈高度增加趋势,也由此可以反映出松嫩平原的生态环境逐渐改善。
Based on the remote sensing image data of Songnen Plain in two years,the ecological environment map of Songnen Plain was designed by using FVC index:FVC average distribution map,FVC difference distribution map,FVC trend dynamic distribution map,spatial variation coefficient distribution map,and the spatial pattern analysis and dynamic analysis of vegetation cover in Songnen Plain were carried out by using GIS technology.From the FVC average distribution map of Songnen Plain,it can be seen that the higher vegetation coverage is mainly distributed in the north,northeast and southeast of Songnen Plain;the increasing state of FVC difference is significantly higher than the decreasing state,which indicates that the growth trend of vegetation in Songnen Plain is getting better year by year;FVC coefficient of variation shows obvious dispersion.The four models show that FVC of vegetation in Songnen Plain is increasing,which can reflect the gradual improvement of ecological environment in Songnen Plain.
作者
王群
赵卫丽
张运鑫
WANG Qun;ZHAO Weili;ZHANG Yunxin(The Third Topographic Surveying Brigade,Ministry of Natural Resources,Harbin 150025,China;Heilongjiang Institute of Geomatics Engineering,Harbin 150081,China)
出处
《测绘与空间地理信息》
2021年第S01期164-167,共4页
Geomatics & Spatial Information Technology
