Use of Drought Index and Crop Modelling for Drought Impacts Analysis on Maize (Zea mays L.) Yield Loss in Bandung District

3rd International Seminar On Sciences "Sciences On Precision And Sustainable Agriculture"

Kurniasih, E.^1,2 ; Impron^1 ; Perdinan^1

Department of Geophysics and Meteorology, Faculty of Mathematics and Natural Sciences, Bogor Agricultural University (IPB), Kampus IPB Dramaga, Jl. Meranti, Bogor

16680, Indonesia^1

Stasiun Klimatologi Lasiana-Kupang, Indonesian Agency for Meteorology Climatology and Geophysics (BMKG), Jl. Timor Raya Km 10.7, Lasiana, Kupang, Nusa Tenggara Timur

85311, Indonesia^2

关键词: Aquacrop;    Calculation results;    maize;    Maize (Zea mays L.);    Plant growth stages;    Reproductive stage;    standardized precipitation evapotranspiration index;    Standardized precipitation index;   

Others  :  https://iopscience.iop.org/article/10.1088/1755-1315/58/1/012036/pdf
DOI  :  10.1088/1755-1315/58/1/012036

来源: IOP

【 摘 要 】

Drought impacts on crop yield loss depend on drought magnitude and duration and on plant genotype at every plant growth stages when droughts occur. This research aims to assess the difference calculation results of 2 drought index methods and to study the maize yield loss variability impacted by drought magnitude and duration during maize growth stages in Bandung district, province of West Java, Indonesia. Droughts were quantified by the Standardized Precipitation Index (SPI) and the Standardized Precipitation Evapotranspiration Index (SPEI) at 1- to 3-month lags for the January1986-December 2015 period data. Maize yield responses to droughts were simulated by AquaCrop for the January 1986-May 2016 period of growing season. The analysis showed that the SPI and SPEI methods provided similar results in quantifying drought event. Droughts during maize reproductive stages caused the highest maize yield loss.