Influence of Climate Change on Maize Yield in Growing Season-A Case Study of the Songliao Plain

DOI

10.2991/aebmr.k.210409.011How to use a DOI?

Keywords

Climate change, Maize yield, SPEI, Songliao plain

Abstract

With global warming, extreme weather and climate events, such as super-severe drought, are occurring more frequently, affecting more and more, and damaging more and more, which makes the distribution range of drought disasters and the impact of agricultural ecology more extensive. In order to analyze the climate change characteristics and its impact on corn yield in Songliao Plain under the background of global climate change, based on the temperature and precipitation data of 18 meteorological stations in Songliao Plain from 1965 to 2018, the Coupled Model Intercomparison Project Phase 5(CMIP5) data and corn yield data from 1981 to 2018, the drought change characteristics in Songliao Plain were analyzed by using standardized precipitation evapotranspiration index (SPEI), and the meteorological factors, drought index and corn climate were discussed in combination with correlation analysis. The results are as follows: 1) during the growing season of Songliao Plain from 1965 to 2018, the temperature increased and the precipitation decreased. In terms of geographical spatial distribution, Harbin, Liaoyang and Anshan had the highest temperature increase, while the precipitation decreased the most in the southeast of Songliao Plain. Overall, it shows the trend of drought. 2) From 1981 to 2018, the climatic yield of maize was positively correlated with SPEI-1 and SPEI-3, compared with SPEI-1, the correlation between SPEI-3 is stronger. The greater the drought index, the higher the climate yield. 3) Under the scenario of global warming of 1.5°C and 2.0°C, the temperature and precipitation in the growth season of Songliao Plain have increased compared with the reference period (1976-2005), showing a warm and dry trend. This study provides a scientific basis for the formulation and implementation of early warning, prevention and response measures of agricultural drought in this region.

Copyright

© 2021, the Authors. Published by Atlantis Press.

Open Access

This is an open access article distributed under the CC BY-NC license (http://creativecommons.org/licenses/by-nc/4.0/).

Download article (PDF)

TY  - CONF
AU  - Guna Ari
AU  - Jiquan Zhang
AU  - Yulong Bao
AU  - Hanfu Asi
PY  - 2021
DA  - 2021/04/12
TI  - Influence of Climate Change on Maize Yield in Growing Season-A Case Study of the Songliao Plain
BT  - Proceedings of the 9th Annual Meeting of Risk Analysis Council of China Association for Disaster Prevention (RAC 2020)
PB  - Atlantis Press
SP  - 74
EP  - 80
SN  - 2352-5428
UR  - https://doi.org/10.2991/aebmr.k.210409.011
DO  - 10.2991/aebmr.k.210409.011
ID  - Ari2021
ER  -