The investigation of relationship between integrated surface drought index (ISDI) detected drought condition and crop yield

Author

Lei Zhou ; Jianjun Wu ; Tangao Hu ; Song Leng ; Jianhui Zhang ; Ming Liu ; Lin Zhao

Author_Institution

China Nat. Environ. Monitoring Center, Beijing, China

fYear

2014

fDate

13-18 July 2014

Firstpage

2050

Lastpage

2053

Abstract

Chosen the winter crop yield data from agro-meteorological sites and ISDI results during 2000-2009 in Mid-eastern China, the corresponding relationship between drought and winter crop yield was analyzed using confusion matrix and Kappa coefficient. The results shows that the high or low values of ISDI can reflect the crop yield reduction condition caused by the drought or flood; the normal values of ISDI can reflect the crop yield increasing and fluctuation in normal condition. ISDI monitored drought condition has obvious corresponding relationship with crop yield change. This also proved that ISDI can accurate monitor the drought events occurred during winter crop growing season.

Keywords

crops; floods; hydrology; AD 2000 to 2009; ISDI drought condition monitoring; ISDI result; Kappa coefficient; accurate drought event monitoring; agro-meteorological site; confusion matrix; crop yield change relationship; crop yield fluctuation; crop yield reduction condition; detected drought condition; drought-winter crop yield relationship; flood; high ISDI value; integrated surface drought index relationship investigation; low ISDI value; mid-eastern China; normal ISDI value; normal condition; winter crop growing season; winter crop yield data; Agriculture; Floods; Fluctuations; Indexes; Monitoring; Remote sensing; Vegetation mapping; Agricultural drought; Crop yield; ISDI; Kappa;

fLanguage

English

Publisher

ieee

Conference_Titel

Geoscience and Remote Sensing Symposium (IGARSS), 2014 IEEE International

Conference_Location

Quebec City, QC

Type

conf

DOI

10.1109/IGARSS.2014.6946867

Filename

6946867