【摘要】 基于农业干旱概念和作物水分代谢过程,从驱动因素对作物水分收入和支出影响角度分析了气候变化和人类活动二大驱动因素对农业干旱形成的驱动机制,探讨了多种因素综合作用下农业干旱(包括雨养农业和灌溉农业)从孕育、缓冲、开始、发展到解除的过程。更多还原

【Abstract】 Based on the concept of agricultural drought and crop water metabolic process,the driving mechanisms of climate change and human activities to agricultural drought were analyzed from the angle of water income and expenditure of crops.The forming of agricultural drought(including rain-fed agriculture and irrigation agriculture) under mutiple driving factors was discussed which included pre-start,buffer,start,development and end.更多还原