[1]College of Economics and Management;
Henan Agricultural University;
Zhengzhou 450002;
P.R.China;
[1]College of Economics and Management;
Henan Agricultural University;
Zhengzhou 450002;
P.R.China;
[2]Department of Economics and Finance;
University of Waikato;
Hamilton 3240;
New Zealand;
[1]College of Economics and Management;
Henan Agricultural University;
Zhengzhou 450002;
P.R.China;
China; major grain producing areas; determinants; climate change perception; irrigation areas;