| 朝阳干旱类型与粮食产量及抗旱对策 |
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| 引用本文： | 周广学,李普庆,周晓东.朝阳干旱类型与粮食产量及抗旱对策[J].安徽农业科学,2010,38(23):12873-12875. |
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| 作者姓名： | 周广学 李普庆 周晓东 |
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| 作者单位： | 辽宁省朝阳市气象局,辽宁朝阳,122000 |
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| 摘 要： | 对朝阳地区的自然降水状况从区域分布、季节和年季变化等几个方面进行了详细的阐述,并根据朝阳地区的几个代表站近50年降水和蒸发的气候资料,对朝阳地区干旱状况进行科学系统的分析,首次将朝阳地区不同季节的干旱划分为不同类型,并利用产量分解的原理和科学模拟的方法,对朝阳地区5个县近50年的主要农作物产量与4～9月份的降水距平进行科学的相关分析,找出了在气象产量部分起主要作用的气象限制因子。同时,根据农田水分平衡的基本原理,利用多学科的理论知识,对于如何提高朝阳地区自然降水利用率、充分挖掘水分资源、争取农业生产的全面丰收,提出改善生态环境、培育抗旱品种、调整作物布局等科学对策。
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| 关 键 词： | 干旱类型 粮食产量 抗旱对策 |
Drought Types and Food Yield and Drought Resistant Countermeasures in Chaoyang |
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| ZHOU Guang-xue et al.Drought Types and Food Yield and Drought Resistant Countermeasures in Chaoyang[J].Journal of Anhui Agricultural Sciences,2010,38(23):12873-12875. |
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| Authors: | ZHOU Guang-xue |
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| Institution: | ZHOU Guang-xue et al (Chaoyang Meteorological Bureau,Chaoyang,Liaoning 122000) |
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| Abstract: | 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... |
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| Keywords: | Drought type Grain yield Drought response |
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