关键词: 作物气候生产力, 地理分布, 变化特征, 陕西

Abstract: Based on the meteorological data of 78 representative stations in recent 40 years,the geographical distribution and change characters of crop climatic productivity in Shaanxi Province were analyzed by using the Empirical Orthogonal Function(EOF) and other statistic methods.The crop climate productivity under climate change scenarios was simulated.The warm and wet climate would benefit the agriculture production with an average increase of crop yield by 8.0% to 9.6%,while the cold and dry climate would have an adverse impact on agriculture production with an average decrease of crop yield by 8.6% to 10.4%.

Key words: Crop climate productivity, Crop climate productivity, Geographical distribution, Change character, Shaanxi Province