基于MOD17A3的介休市植被NPP变化分析  

Analysis on the Change of Vegetation NPP Based on the MOD17A3 in Jiexiu City

作　　者：杨艳[1] 史广[2] 

机构地区：[1]山西农业大学信息科学与工程学院,山西太谷030801 [2]山西农业大学资源环境学院,山西太谷030801

出　　处：《山西农业科学》2016年第8期1169-1171,共3页Journal of Shanxi Agricultural Sciences

基　　金：山西农业大学创新基金项目(2012314)

摘　　要：基于RS和GIS技术,利用2001—2010年的MOD17A3数据对山西省介休市的陆地植被净初级生产力(NPP)进行了动态监测,定量研究了其变化趋势,通过研究不同年份的土地利用变化,分析其产生变化的原因。结果表明,2001—2010年介休市陆地植被净初级生产力基本呈增加趋势,不同地区的年均NPP值及其变化特征各不相同,北部平川地区和南部山区的年均NPP值明显高于中部丘陵区。经综合分析,土地利用变化与植被覆盖度成为影响介休市植被净初级生产力的主要因素。This paper based on the technology of remote sensing and geographical information system, by using the MOD 17A3 data to monitor the Net Primary Productivity （NPP） during the period 2001 to 2010 in Jiexiu city of Shanxi province, and made a quantitative study of the NPP change trend, analyzed the reasons for change by studying the change of land use in different years. The result showed that from 2001 to 2010, the terrestrial vegetation NPP in Jiexiu showed an increasing trend, in different regions, the average annual NPP as well as the variations characteristics were not the same, the annually average NPP value of the northwest flat region and southern mountain areas were significantly higher than the hills in the central regions. By the comprehensive analysis, the change of land use and vegetation cover became the major factors which influenced the NPP of the Jiexiu city.

关 键 词：NPP 植被覆盖 趋势 土地利用变化 

分 类 号：Q948[生物学—植物学]