Title: Modelling the climate change in regional crop production efficiency in Canada: based on the super-efficiency SBM model and DEA window analysis

Authors: Kun Song

Addresses: College of Economics, Sichuan Agricultural University, ChengDu 611130, China

Abstract: This study aims to capture the spatial and time influence of climate change on crop production efficiency (CPE) using the SE-SBM model combined with DEA window analysis. The model is validated with the data from 1976 to 2016 in Saskatchewan, one of the three Canadian prairie provinces. By categorising Saskatchewan into three regions: black soil zone, dark brown soil zone, and brown soil zone, differences are analysed between CPE without considering climate change and CPE under climate change. We find that CPE under climate change is significantly larger than CPE without consideration of climate change, and the positive influence of temperature fluctuations during the growth period on CPE is more important than that of humidity fluctuations, and the beneficial impact of average humidity on CPE is significantly greater than that of average temperature.

Keywords: crop production efficiency; CPE; climate change; SE-SBM model; DEA window analysis; Canada.

DOI: 10.1504/IJGW.2022.122427

International Journal of Global Warming, 2022 Vol.26 No.4, pp.333 - 360

Received: 14 Apr 2021
Accepted: 27 Jul 2021
Published online: 25 Apr 2022 *

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