干旱区生态环境知识资源中心(Arid): 近60年农业生产期干旱发生风险分析

Arid

	近60年农业生产期干旱发生风险分析
其他题名	Analysis on Risk of Agricultural Drought During Crops Growing Period over Nearly 60 Years
	张国林; 戴海燕; 隋景跃
来源期刊	中国农学通报
ISSN	1000-6850
出版年	2014
卷号	30 期号:32 页码:227-231
中文摘要	采用叶柏寿、朝阳气象站19532012年气象资料,运用积分湿度指数、水平衡和干湿指数,评价辽西地区农业生产期大气降水及农业耗水、农业需水的满足度及不同时期旱涝频率。结果表明:19532012年农业生产期大气降水减少,气候变化率为-9.343 mm/10 a;农业耗水量在增加,气候变化率为6.966 mm/10 a;农业生产期水分平均亏缺-136 mm。降水资源农业满足度为76.3%,缺水概率为90.0%。辽西地区农业生产期属于半湿润半干旱气候类型,重旱及以上年景占5.0%;干旱发生风险近10年增加约10%。总之,辽西地区降水在减少、耗水在增加、农业需水满足度在下降、干旱发生风险在增强。近10年随着气候变暖辽西地区农业生长期从半干旱半湿润气候类型升级为半干旱气候类型。
英文摘要	The author adopted meteorological data from meteorological stations in Yebaishou and Liaoxi from 1953 to 2012 to assess and evaluate agricultural water consumption, atmospheric precipitation, and agricultural water demand satisfaction in Liaoxi area during agricultural production, as well as frequency of drought in different periods by integral humidity index, water balance and humidity index. The results showed that: from 1953 to 2012, the atmospheric precipitation decreased during agricultural production, climate change rate was -9.343 mm/10 a; agricultural water consumption increased, and climate change rate was 6.996 mm/10 a; the average humidity gap during agricultural production period was - 136 mm. The agricultural satisfaction of precipitation resource was 76.3%, and the probability of precipitation shortage was 90.0%. In Liaoxi, the climate during agricultural production period was semi- humid and semi- arid, years with severe drought and more accounted for 5.0 %; over past 10 years, drought risk increased by about 10%. Generally,rainfall was reducing in west Liaoning, but the water consumption was increasing, agricultural water demand satisfaction was declining, drought risk was growing. With climate warming in west Liaoning, the climate during crops growing period was transforming from semi- humid and semi- arid climate to semi- arid climate over recent 10 years.
中文关键词	降水量 ; 耗水量 ; 干湿指数 ; 满足度 ; 干旱
英文关键词	precipitation water consumption humidity index satisfaction drought
语种	中文
国家	中国
收录类别	CSCD
WOS类目	AGRICULTURE MULTIDISCIPLINARY
WOS研究方向	Agriculture
CSCD记录号	CSCD:5306335
资源类型	期刊论文
条目标识符	http://119.78.100.177/qdio/handle/2XILL650/232113
作者单位	辽宁省朝阳市气象局, 朝阳, 辽宁 122000, 中国
推荐引用方式 GB/T 7714	张国林,戴海燕,隋景跃. 近60年农业生产期干旱发生风险分析[J],2014,30(32):227-231.
APA	张国林,戴海燕,&隋景跃.(2014).近60年农业生产期干旱发生风险分析.中国农学通报,30(32),227-231.
MLA	张国林,et al."近60年农业生产期干旱发生风险分析".中国农学通报 30.32(2014):227-231.