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中文摘要: 在用降水量与作物需水量相比较来确定旱情的同时考虑当地的抗旱能力,引入了灌耕比的概念,结合NOAA/AVHRR资料分析判断河北省夏季干旱的发生程度。应用此方法对1997年和1998年夏旱进行评定,结果与实际相符。
中文关键词: 降水量,区域抗旱力,距平植被指数,夏旱监测
Abstract:The precipitation amount comparing to water requirement of crops can be used to assesse the agricultural drought.Ratio of irrigated and tillable field area is used to evaluate the drought resistant abilities of regional farming.Both of them are combined with the NOAA/AVHRR data in ordar to estimate the summer-drought damage to agriculture in Hebei provincial.It gave well results during the application in 1997 and 1998.
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魏瑞江,姚树然,李艳旗,1999.河北省夏季干旱的一种判定方法[J].气象,25(8):55-57.
,1999.Summer Drought Judgement Method in Hebei Province[J].Meteor Mon,25(8):55-57.
魏瑞江,姚树然,李艳旗,1999.河北省夏季干旱的一种判定方法[J].气象,25(8):55-57.
,1999.Summer Drought Judgement Method in Hebei Province[J].Meteor Mon,25(8):55-57.