Based on the analysis of ecological environment characters of oasis agriculture, major limiting factors for sustainable development of oasis agriculture at Zhangye oasis were discussed.

• 摘要在分析张掖绿洲农业生态环境特点的基础上，探讨了张掖绿洲农业可持续发展的主要制约因素，提出核定生态环境承载力，严格控制人口数量；