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《Journal of Anhui Agricultural Sciences》 2011-25
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Temporal and Spatial Variation Characteristics of Effective Accumulated Temperature in Northeast China during 1951-2007

LIU Jing-li et al(Jinzhou Meteorological Bureau,Jinzhou,Liaoning 121001)  
Using the data of the minimum and maximum air temperature in Northeast China during 1951-2007,the temporal and spatial variation of effective accumulated temperature 10 ℃ was analyzed with Arcgis and SPSS software.The results indicated that effective accumulated temperature in three provinces of Northeast China tended to significantly increase with time,and the increasing tendency enhanced in the order of Jilin Province(P=0.024),Heilongjiang Province(P=0.003),Liaoning Province(P0.001).The development and change of agriculture climate resources in the Northeast of China were indicated.The problems of agriculture development under climate change were discussed.Warming can lead to the increase of effective accumulated temperature and regional drought,consequently accelerate the growth and maturity of crops and lead to the decline of crop yield and quality.
【CateGory Index】: P468.021
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