Ⅰ.Introduction Ⅱ.Research Approach and Method 1.Basic Approach 2.Content and Method Ⅲ.Research Status of Xihe Jujube in the Eastern Xianxian County and Its Adjacent Area 1.The Physical Geography and the Jujube Economy in the Eastern Xianxian County and Its Adjacent Area 2.The Plantation History and the State of the Art of Xihe Jujube Forests 3.The Achievements and Problems for the Study on Xihe Jujube Orchards Ⅳ.Analysis to the Agroecological Geological Environment of Xihe Jujube Growing in the Eastern Xianxian County and Its Adjacent Areas 1.Geomorphology 2.Surficial Quaternary Geological Structure 3.Soil Element Geochemical Environment 4.Bio-hydrogeological Features Ⅴ.Analysis of Nutrition Elements in High-quality and High-yield Jujube Forests 1.Quality Features of Xihe Jujube 2.Nutrient Features of Jujube with Different Quality 3.Analysis of Nutrient Content Features of Jujube Leaves 4.Analysis of Nutrient Content Features of Jujube-roots 5.The Relationship between Nutrition Elements Ⅵ.Analysis of the Relationship between Soil-profile Types and Jujube Quality and Yield 1.Analysis of the Relationship between Soil-profile Types and Nutrients and the Proportion 2.Analysis of the Nutrition-supply Capacity with Soil-profile Types 3.Analysis of the Nutrition-transport Capacity with Soil-profile Types Ⅶ.Field Test for Jujube Forests 1.Main Requirements for Choosing Sites 2.Sites,Test Contents and Methods 3.Test Results Ⅷ.The Conclusion Appendix Ⅰ Jujube Orchard Plantation Division of Xianxian County Appendix Ⅱ DBMS of Agroecological Geological Environment for Xihe Jujube Appendix Ⅲ The Parts of Analysis Results on Samples from Xihe Jujube Agroecological Geological Environment in Study Area Selected References Summary (In English)