长柄扁桃作为我国新型的木本食用油生产原料具有天然优势和巨大潜力。如何保持其油脂突出品质，划定其适宜分布区成为推动长柄扁桃产业发展的强烈需求。前期研究表明，环境因素是长柄扁桃油脂特征地理变异的重要驱动力，直接或者间接导致长柄扁桃不同地理种源间油脂的特征值的变异，尤其是对食用油脂原料品质的两个决定因素—油脂含量和脂肪酸组成变异的驱动。本项目拟在前期长柄扁桃资源调查的基础上，通过合理布置全部分布区内采样点，多点采集评价种仁油脂特性，探析驱动地理种源间油脂特性变异的关键环境因子及其与环境因子的关联度，经分布区内、外两种地理种源林试验佐证，探讨环境因子对油脂特征的变异驱动机制。进而利用GIS技术，结合油脂变异规律，对长柄扁桃生境适宜性进行量化分析，绘制其边际土地适宜性分布图。以期为提高长柄扁桃油脂含量和品质栽培环境的选择，及边际土地合理的利用提供理论依据，促进我国长柄扁桃生态经济林的健康有序发展。

As new woody edible oil plants, Amygdalus pedunculata has a natural advantage and great potential in china. How to maintain its outstanding quality of oil and delimit its suitable distribution area becomes a strong demand to promote the development of Amygdalus pedunculata industry. In the previous studies, environmental factors is an important driving force in Amygdalus pedunculata oil characteristics of geographic variation, directly or indirectly lead to characteristic of Amygdalus pedunculata different geographic provenances value of fat variation, especially driven variation consisting of two decided to raw material quality edible oil factors of oil content and fatty acid composition. In this work, we will collect mature Amygdalus pedunculata nuts and environmental factors in the whole distribution area. The key environmental factors which affect oil properties variation of geographical provenance and the relationship with the environmental factors will be analyzed. The variation of environmental factors on the characteristics of oil driving mechanism will be explored according to the two provenances of forest test. Then use the GIS technology, combined with the variation of Amygdalus pedunculata oil, the Amygdalus pedunculata ecological energy forest suitability map and marginal land utilization plan will be drawn. Those works will contribute to not only improving the yield and quality of Amygdalus pedunculata oil by cultural environment and expanding exploitation and utilization area, but also providing the healthy and orderly development of Amygdalus pedunculata ecological economic forest.