Drought Types and Impacts on Food Yield and Drought Resistant Countermeasures in Chaoyang  

朝阳地区干旱类型对粮食产量的影响及抗旱对策(英文)

作　　者：周广学[1] 李普庆[1] 周晓东[1] 

机构地区：[1]辽宁省朝阳市气象局,辽宁朝阳122000

出　　处：《Meteorological and Environmental Research》2010年第7期75-77,81,共4页气象与环境研究（英文版）

摘　　要：The natural precipitation status in Chaoyang District was discussed from aspects of regional distribution,seasonal and annual variation.According to rainfall and evaporation data in recent 50 years from several typical stations in Chaoyang,the drought status was analyzed.The drought in each season of Chaoyang was divided into different types,and by using decomposition principle and the scientific simulation method,the main crops' yield in recent 50 years in 5 counties of Chaoyang and precipitation anomaly from April to September was analyzed to find out the main weather restricting factors.Meanwhile,according to the basic principles of farmland water balance and multi-disciplinary theoretical knowledge,some countermeasures were put forward,such as improving eco-environment,culturing drought resistant varieties and adjusting crop layout,so as to improve the utilization of natural precipitation in Chaoyang District,fully tap the water resources,and fight for the full harvest of agricultural production.The natural precipitation status in Chaoyang District was discussed from aspects of regional distribution,seasonal and annual variation.According to rainfall and evaporation data in recent 50 years from several typical stations in Chaoyang,the drought status was analyzed.The drought in each season of Chaoyang was divided into different types,and by using decomposition principle and the scientific simulation method,the main crops' yield in recent 50 years in 5 counties of Chaoyang and precipitation anomaly from April to September was analyzed to find out the main weather restricting factors.Meanwhile,according to the basic principles of farmland water balance and multi-disciplinary theoretical knowledge,some countermeasures were put forward,such as improving eco-environment,culturing drought resistant varieties and adjusting crop layout,so as to improve the utilization of natural precipitation in Chaoyang District,fully tap the water resources,and fight for the full harvest of agricultural production.

关 键 词：Drought type Grain yield Drought response China 

分 类 号：S423[农业科学—植物保护]