Abstract:

This paper analyzed the climatic conditions for the needs of dried red jujube growing (Yang-mu jujube) in Northern Shaanxi. Determined annual mean temperature, annual precipitation, annual sunshine hours, ≥ 10 ℃ accumulated temperature, frost-free period, the average temperature of flowering, precipitation in picking time as the climate division index of dried red jujube in Northern Shaanxi. Simulated the small-grid data of climatic resources of the division index using GIS technology and established the score function of all index factors combining with division index. Obtained the comprehensive evaluation map of red jujube zoning by computing and divided the dried red jujube groweth areas into suitable area, sub-suitable area and unsuitable area after classification. The results show that thoes counties east along the Yellow River were the suitable area of dried red jujube in Northern Shaanxi.