谢小华,班磊.吉安市历史典型干旱年农业旱情特点分析[J].江西水利科技,2015,(1):53-57 |
吉安市历史典型干旱年农业旱情特点分析 |
Analysis of the agricultural drought characteristic on the history typical drought years in Jian city |
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DOI: |
中文关键词: 吉安市 旱情评估 雨量距平百分比 连续无雨日 |
英文关键词: Jian city Drought evaluation Precipitation anomly percentage Consecutive days without rain |
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中文摘要: |
本文以新中国建国以来至2012年江西省吉安市历史上出现的典型干旱年:1963年、1978年、1986年、1998年、2003年、2007年为研究对象,从降水量、河道水情以及灾情等方面进行初步分析,利用雨量距平百分比、连续无雨日等方法对旱情程度进行评估,阐述了各自的规律和特点,认识了干旱的程度。结果表明:吉安市典型干旱年的干旱时间一般比较长,灾情也严重,与降水时空分布不均或降水量的多寡有明显关系;区域分布上,总趋势是吉泰盆地区域干旱较重,山区较轻,从南部到北部逐步加重。 |
英文摘要: |
Taking the history typical drought years in Jian city of Jiangxi Province since the founding of New China to 2012 such as 1963,1978,1986,1998,2003,2007 as the research object,the preciptation,channel water regime and disaster are preliminarily analyzed and by the preciptation anomaly percentage and consecutive days without rain etc,the drought extent is assessed.Their laws and characteristics are stated and the drought extent is known.The results show that:the drought time of typical drought years in Jian city is generally longer,the disaster is also serious,the uneven spatial trend is that the drought of Jitai Basin is heavier and the mountain area is lighter and the drought gradually increase from the sourth to north of Jian city. |
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