3Alexandrov V A, Hoogenboom G. 2000. Vulnerability and adap- tation assessments of agricultural crops under climate change in the Southeastern USA[J ]. Theoretical and Applied Clima- tology, 67( 1 ) :45-63.
4David B, Lobell J, Ivan Ortiz-Monasterio,Gregory P, Pamela A, Rosamond L, Walter P. 2005. Analysis of wheat yield and climatic trends in Mexico [J]. Field Crops Research, 94(2-3 ) : 250-256.
5Gbetibouo G A,Hassan R M. 2005. Measuring the economic impact of climate change on major South African field crops: a Ricardian approach original research article[J]. Global and Planetary Change, 47(2-4) : 143-152.
6Juan Jose, FazliMabood, Zhou X M, Edward G, Donald L. 2008. Climate change, weather variability and corn yield at a higher latitude locale : Southwestern Quebec [J]. Climatic Change, 88(2) : 187-197.
