基于遥感影像的城市植被覆盖度监测研究  

Research on Monitoring of Urban Vegetation CoverageBased on Remote Sensing Images

作　　者：陈荣[1,2] CHEN Rong(School of Civil Engineering and Architecture,Xiamen City Vocational College,Xiamen 361008;China 2.Intelligent Data Monitoring and Analysis Application Center,Xiamen City Vocational College,Xiamen 361008;China 2.Int)

机构地区：[1]厦门城市职业学院建筑工程学院,福建厦门361008 [2]厦门城市职业学院智慧数据监测及分析应用中心,福建厦门361008

出　　处：《科技创新与生产力》2024年第8期82-85,共4页Sci-tech Innovation and Productivity

基　　金：厦门城市职业学院云顶科研平台智慧数据监测及分析应用中心科研项目(20106004)。

摘　　要：城市植被生长状态及分布密度对于城市生态环境有着重要影响,本文首先以近年来新开放的Landsat 9卫星影像数据为基础,分析研究卫星构成及影像特征,然后对其进行辐射定标、大气校正等,最后利用归一化植被指数(Normalized Difference Vegetation Index,NDVI)对城市植被覆盖率进行反演。结果表明:研究区植被覆盖率相对较高,平均值为60.17%,普遍为高植被覆盖度和较高植被覆盖度区域,较低和低植被覆盖度相对较少;从空间分布可得,浦口区、江宁区、溧水区植被覆盖度平均值均在60%以上,其他地区则低于60%。总体而言,研究区植被生态态势较好,植被覆盖度较高,同时利用Landsat 9卫星影像数据能够较为准确地反演城市植被覆盖度,为城市生态环境保护监管提供可靠数据支撑。The growth state and distribution density of urban vegetation have an important impact on urban ecological environment.Based on the newly opened Landsat 9 satellite image data in recent years,this paper analyzes and studies the satellite composition and image characteristics,conductes radiometric calibration and atmospheric correction on it,and then uses Normalized Vegetation Index(NDVI)to invert the urban vegetation coverage rate.The results showed that the vegetation coverage rate in the study area is relatively high,with an average of 60.17%;generally,there are high vegetation coverage rate areas and relatively high vegetation coverage rate areas,and there are relatively few low vegetation coverage rate areas and relatively low vegetation coverage rate areas;according to the spatial distribution,the average vegetation coverage rates in Pukou District,Jiangning District and Lishui District are above 60%,while in other areas they are below 60%.In general,the vegetation ecological situation in the study area is good,and the vegetation coverage rates are high.Meanwhile,the urban vegetation coverage rate can be retrieved more accurately by using Landsat 9 satellite image data,which provides reliable data support for urban ecological environmental protection and supervision.

关 键 词：Landsat 9卫星影像 大气校正 植被覆盖度 NDVI 

分 类 号：P407.6[天文地球—大气科学及气象学]