为了理清对寒旱农业的认识和界定，明确寒旱农业当前的发展态势和未来发展方向，通过调研大量资料，以甘肃省为例，明确了寒旱区的分布及自然特征，探讨了寒旱农业的概念和内涵。从土壤类型及耕地质量水平、作物种植结构及生产水平、机械化水平、土地经营方式、社会化服务水平等方面阐释了寒旱农业现状；从生境因素、土壤因素、区域结构布局、投入水平、技术支撑等方面分析了寒旱农业存在的问题。提出了寒旱农业未来要在绿色覆盖、流域生态、种养循环模式下，充分集成设施化、机械化、智能化、数字化等手段，重点研究绿色覆盖、土壤定向培育、土壤有机质快速提升、智慧化集雨农业、旱作智慧农业决策平台、智能养分产品应用、作物种植制度优化设计等关键技术和策略。

To unify the understanding and defination and to summarize the development status and direction of cold and arid agriculture, based on the realities of Gansu Province, natural features and distribution of cold and arid regions were determined, and the concept and connotation of cold and arid agriculture were discussedin this paper throught literature. Current agricultural production status in cold and arid regions was elucidated in terms of soil types and quality, planting structure and productivity, mechanization level, land management, andsocialized service level. Present problems in cold and arid agriculture were analyzed from the aspects of habitatfactor, soil factor, planting structure, input leveland technical support. It was proposed that future cold and arid agriculture should be developed under the mode of green coverage, watershed ecology and crop-livestock farming cyclewith technical means such as facilities, mechanization, intelligence and digitalization fully integrated, and key technologies and production strategies such as green coverage, directional soil cultivation, rapid improvement of soil organic matter, intelligent rain-harvesting agriculture, intelligent dry farming decision-making platform, intelligent nutrient product application, and optimized design of crop planting system studied particularly.

S181

国家自然科学基金(31960398)；国家重点研发计划(2021YFD1900700)；甘肃省科技重大专项(20ZD7NA007)。