介绍了干旱以及干旱对作物的影响，概述了农业防灾减灾的主要工程措施，这些工程措施包括集水工程、蓄水工程、覆盖抑蒸工程、节水灌溉工程、人工增雨防旱工程、抗旱种衣剂包衣工程，并介绍了这些工程的应用效果。

The impact of drought on crop growth and development are introduced, and an overview of the main engineering’s measures of the agricultural disaster prevention and mitigation, these projects include: watershed harvest engineering, water storage engineering, mulching for reducing evaporation engineering, water-saving irrigation engineering, artificial rainfall anti-drought engineering, drought resistant seed coating engineering, and the application effects of t these engineering are also described.