Welcome to Chinese Journal of Applied Ecology! Today is Share:

Chinese Journal of Applied Ecology ›› 2021, Vol. 32 ›› Issue (1): 241-251.doi: 10.13287/j.1001-9332.202101.011

• Original Articles • Previous Articles     Next Articles

Identification and characteristics of multiple agrometeorological disaster of maize in Liaoning Province, China

YU Wen-ying1,2, JI Rui-peng1,2, LI Zhuo-qun3, LIU Dong-ming4, FENG Rui1,2, WU Jin-wen1,2, ZHANG Yu-shu1,2*   

  1. 1Institute of Atmospheric Environment, China Meteorological Administration, Shenyang 110166, China;
    2Liaoning Province Key Laboratory of Agrometeorological Disasters, Shenyang 110166, China;
    3School of Atmospheric Sciences, Chengdu University of Information Technology, Chengdu 610225, China;
    4Ecological Meteorology and Satellite Remote Sensing Center of Liaoning Province, Shenyang 110166, China
  • Received:2020-07-13 Accepted:2020-10-10 Online:2021-01-15 Published:2021-07-15
  • Contact: * E-mail: yushuzhang@126.com
  • Supported by:
    Provincial Key R&D Project of Department of Science and Technology of Liaoning Province (2019JH2/10200018, 2017210001), the Agricultural Research and Achievements Industrialization Project of Department of Science and Technology of Liaoning Province (2014210003) and the National Key R&D Program of China (2018YFD0300309-02).

Abstract: Multiple agrometeorological disaster (MAD) occurs simultaneously in maize production. In order to ascertain the occurrence regularity and characteristics of MAD of maize in Liaoning Pro-vince, we defined and classified MAD, identified MAD of 50 meteorological stations in the maize growing season of Liaoning Province from 1961 to 2017, and examined the effects of MAD on maize yield in typical years. The results showed that the occurrence range of MAD was higher in most years from 1961 to 2017 than that of single agrometeorological disaster (SAD), and that the occurrence frequency of MAD was higher in most areas than that of SAD. The major MAD in Liaoning Province was drought in multiple periods (M1-D), followed by the combination of drought and delayed cold damage (M2-DC). The occurrence range of M1-D showed an upward trend from 1961 to 2017, whereas other MAD types showed a downward trend. After analyzing the occurrence of MAD in the typical years of maize yield reduction, we found that the occurrence frequency of M1-D and M2-DC was higher.

Key words: multiple agrometeorological disaster, maize, drought, disaster characteristics, Liao-ning Province