Dynamic changes in maize NDVI and its response to drought in Liaoning province from 1998 to 2018. Issue 2 (January 2021)

• Record Type: Journal Article
• Authors: Ji, Ruipeng; Yu, Wenying; Wang, Qian; Liu, Dongming; Feng, Rui; Wu, Jinwen; Zhang, Yushu
• Is Part Of: IOP conference series. Volume 632:Issue 2(2021)
• Publication Date: 2021-01
• Subjects: Earth sciences -- Periodicals; Environmental sciences -- Congresses; Environmental sciences -- Periodicals; 550.5
• DOI: 10.1088/1755-1315/632/2/022021
• Languages: English
• ISSNs: 1755-1307

Abstract

Abstract: In order to study the normalized difference vegetation index (NDVI) of maize and its response to drought, this paper analysed the relationship between maize NDVI and drought in Liaoning province. Based on the meteorological data and NDVI data from 1998 to 2018, this paper analysed the spatial and temporal variation of maize NDVI and identified the drought occurrence in the growing season with the evaporative demand drought index (EDDI). The effect of drought disaster on maize NDVI was carried out by comparing maize NDVI and EDDI. The results could provide a basis for drought loss assessment and drought disaster prevention of maize.