Changes of NDVI in Fujian During 2000-2017

KANG Dong; CHEN Chuan-ming; WANG Qiang

doi:10.16006/j.cnki.twnt.2018.06.005

Abstract：[Objective/Meaning]Through the analysis of the characteristics of NDVI in Fujian Province from 2000 to2017, the changing trends of vegetation coverage in Fujian were studied from the macro perspective.[Methods/Proce-dures]Using ArcGIS and Excel software, the MOD13 Q1 NDVI data set, NDVI of three main land types and DEM da-ta of Fujian Province from 2000 to 2017 were processed and analyzed by trend line, stability and superposition analy-sis.[Results/Conclusions]The annual and seasonal NDVI of Fujian showed steady growth from 2000 to 2017, andthe area of vegetation slightly or significantly improved was over 70.00％ of the total area;The NDVI of grassland, cultivated land and forest land in Fujian Province were improved in the interannual variation in the past 18 years.A-mong them, the improved area of forest land and grassland exceeded 70.00％of the corresponding land type area withsignificant increasing trend;The vegetation area with NDVI variation coefficient less than 5.00％in Fujian Provincewas 59.09％in recent 18 years, indicating high stability;The NDVI of Fujian increased with the elevation, and thegrowth rate increased firstly and then slowed down with the increase of elevation.