干旱区生态环境知识资源中心(Arid): 干季贵州省东西部区域干湿状况差异分析

Arid

	干季贵州省东西部区域干湿状况差异分析
其他题名	Difference of Dry and Wet Conditions during Dry Season in Western and Eastern of Guizhou Province
	池再香 1; 李贵琼 2; 白慧 3; 龙先菊 4; 潘徐燕 5; 肖艳林 1
来源期刊	中国农业气象
ISSN	1000-6362
出版年	2016
卷号	37 期号:3 页码:361-367
中文摘要	利用贵州85个气象观测站1960年10月-2010年3月逐日平均气温、降水量、小型蒸发量等资料,选用线性趋势、M-K突变、Morlet小波、积温干燥度指数以及气候干湿指数等方法,对贵州干季(10月-翌年3月)气象干旱进行分析。结果表明:(1)1960-2010年贵州东西部区域干季降水量均无显著线性变化趋势,但有一定的阶段性变化特点;西部区域2002年之后降水量呈极显著减少趋势,其线性变化率为-59.5mm·10a~(-1)(P<0.01),东部区域2005年之后降水量呈极显著减少趋势,其线性变化率为-97.7mm·10a~(-1)(P<0.01)。21世纪前10a贵州东西部区域气象干旱均呈加重趋势。两区域降水量的突变时段和周期性特征均存在显著性差异(P<0.05),西部区域1979年发生由多到少的突变,存在5~7a的周期振荡,东部区域1995年发生由多到少的突变,存在2~3a的周期振荡。(2)近50a西部区域的积温干燥度、气候干湿指数的变化比东部区域明显偏大、偏低,西部区域的气象干旱比东部区域偏重。(3)贵州东西部区域的积温干燥度、气候干湿指数与降水距平百分率线性拟合率均较高,R2均在0.8以上,但西部区域更高,积温干燥度和气候干湿指数均能真实体现贵州东西部区域干季气象干旱程度。
英文摘要	Based on the data of daily air temperature, precipitation, a small amount of evaporation capacity from 85 meteorological stations from October 1960 to March 2010 in Guizhou province, by using the methods of linear trend, M-K mutation, Morlet wavelet, accumulated temperature dryness index(ATDI) and arid-wet index(I), the meteorological drought situation in dry seasons (from October to March of next year) of Guizhou province was analyzed. The results showed that the precipitation did not changed obviously in western and eastern region of Guizhou province, though with a little periodical change. In the western region, the precipitation had reduced since 2002, with the linear tendency -59.5mm·10y~(-1)(P<0.01).In the eastern region, the precipitation had reduced since 2005, with the linear tendency -97.7mm·10y~(-1)(P<0.01).The regional meteorological drought in western and eastern region of Guizhou Province increased in 1990s, and there was significant differenton the period of sudden change and periodical characteristics (P<0.05) for precipitation in the two regions.In the western region, the sudden change of amounts occurred in 1979, with the periodical concussion of 5-7 years. In the eastern region, the sudden change occurred in 1995, with the periodical concussion of 2-3 years. In last 50 years, the aridity index and arid-wet index in western region were larger and lower obviously than that of eastern region and the meteorological drought in western region was severe than that of the eastern region.The temperature dryness, the arid-wet index and the linear fitting rate of precipitation anomaly percentage were quite high in the two regions, and all of R~2 exceeded 0.8,and the western region was higher than that of the eastern region.The temperature dryness and the arid-wet index could reflect the meteorological drought extent dry seasons in eastern and western region of Guihzou province.
中文关键词	冬半年 ; 降水量 ; 干燥度 ; 气候干湿指数 ; 贵州
英文关键词	Winter half year Precipitation Aridity index Arid-wet index Guizhou Province
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:5728511
资源类型	期刊论文
条目标识符	http://119.78.100.177/qdio/handle/2XILL650/235372
作者单位	1.贵州省六盘水市气象台, 六盘水, 553001; 2.贵州省盘县气象局, 盘县, 553537; 3.贵州省气候中心, 贵阳, 贵州 550002, 中国; 4.贵州省黔东南州气象局, 凯里, 556000; 5.贵州省气象信息中心, 贵阳, 贵州 550002, 中国
推荐引用方式 GB/T 7714	池再香,李贵琼,白慧,等. 干季贵州省东西部区域干湿状况差异分析[J],2016,37(3):361-367.
APA	池再香,李贵琼,白慧,龙先菊,潘徐燕,&肖艳林.(2016).干季贵州省东西部区域干湿状况差异分析.中国农业气象,37(3),361-367.
MLA	池再香,et al."干季贵州省东西部区域干湿状况差异分析".中国农业气象 37.3(2016):361-367.