A comparison between different vegetation water indices in the ability of monitoring water status of wheat in April

Author

Pu, Wang ; Fanming, Kong ; Huiyan, Ding ; Liuhui, Zhao ; Jianliang, Nie

Author_Institution

Resources Coll., Beijing Normal Univ., Beijing

fYear

2008

fDate

June 30 2008-July 2 2008

Firstpage

1

Lastpage

6

Abstract

Using the data of wheat spectrum and water content in 6th April and 23rd April, we figure out the values of NDVI, NDWI, GVMI, PVI and WI, which are among the most frequently used water indices, and make correlation and regression analyze between these indices and EWT and FMC, two indices indicate the water content of wheat leaves. Through analysis and comparison, we find that FMC has a better correlation with water indices than EWT in this period, that in different period the best water index to monitor the water content of wheat is different, and that along with the growth of wheat, the effect of these indices in monitoring water content of wheat becomes much better.

Keywords

agriculture; crops; hydrological techniques; regression analysis; remote sensing; EWT; FMC; GVMI; NDVI; NDWI; PVI; correlation analysis; equivalent water thickness; fuel mass content; regression analysis; vegetation water index; water indices; wheat leaf water content; wheat spectrum data; wheat water content data; wheat water status monitoring; Absorption; Crops; Earth; Educational institutions; Reflectivity; Remote monitoring; Remote sensing; Soil; Vegetation; Water resources;

fLanguage

English

Publisher

ieee

Conference_Titel

Earth Observation and Remote Sensing Applications, 2008. EORSA 2008. International Workshop on

Conference_Location

Beijing

Print_ISBN

978-1-4244-2393-4

Electronic_ISBN

978-1-4244-2394-1

Type

conf

DOI

10.1109/EORSA.2008.4620332

Filename

4620332