简介:TheissueofgrainsecurityinChinaisattractingglobalattention.Inthisresearch,weanalyzetherelationshipbetweengrainproductionandcroplandresources.Theresultsindicatethatdecouplingofthesetwovariablesisrealizedatthenationallevel,andfertilizerandirrigationplayincreasinglyimportantrolesingrainproduction.Ofthe18principalgrainproducingprovinces,sevenshowedabsolutedecoupling,threeshowedrelativedecoupling,fiveshowedquasi-relativedecoupling,andthreeprovincesshowedcoupling.Also,therelativeimportanceoffertilizerandirrigationingrainproductionisdifferentamongthefourdifferentmodesofcoupling/decoupling.