Abstract: Based on the observational daily meteorological data of 81 stations from 1975 to 2004 and its interpolated daily meteorological grids data at the same time in Heilongjiang Province,the spatial characteristics of the potential climatic productivity of potato(Solanum tuberosum L.)was simulated by using WOFOST crop growth model.The climate factors which affected the potential climatic productivity of potato were analyzed.According to the variation rate and coefficient of the potential climatic productivity,and four climatic factors such as average temperature,daily temperature difference between maximum and minimum,daily average sunshine hours and precipitation,the possible planting areas of potato were primarily divided into nine zones.

Key words: Potato(Solanum tuberosum L.), Potato(Solanum tuberosum L.), WOFOST model, Potential climatic productivity, Characteristic, Variation coefficient, Compartment