干旱区生态环境知识资源中心(Arid): 宁夏地区潜在蒸散发变化特征及成因分析

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	宁夏地区潜在蒸散发变化特征及成因分析
其他题名	Characteristics and causes of potential evapotranspiration in Ningxia region
	李晨; 李王成; 董亚萍; 王双涛; 王兴; 赵研
来源期刊	排灌机械工程学报
ISSN	1674-8530
出版年	2021
卷号	39 期号:2 页码:186-192
中文摘要	根据宁夏地区19622017年11个国家级气象站的逐日气象资料,采用Penman-Monteith公式计算宁夏地区潜在蒸散发(potential evapotranspiration,ET0)日值系列,采用气候倾向率、 Mann-Kendall突变检验、ArcGIS反距离权重空间插值、敏感性分析和贡献率等方法对宁夏地区ET0时空变化特征及影响因素进行分析.结果表明:宁夏地区19622017年多年平均ET0为1 073 mm,其中,中部干旱带最高(1 135 mm),引黄灌区次之(1 095 mm),南部山区最低(893 mm);宁夏地区ET0在1986年发生了突变,突变前以0.571 mm/a的幅度下降,突变后以0.109 mm/a的幅度递增,整个周期内,以0.523 mm/a幅度递增,但变化幅度均不显著.ET0对不同区域气象要素的敏感性不同,引黄灌区和中部干旱带对最高温度最敏感,敏感性系数分别为0.41和0. 43,南部山区为相对湿度(-0.45);不同气象要素对ET0的贡献率不同,引黄灌区和南部山区主导因子是最低温度,中部干旱带是平均风速.突变前后, 对引黄灌区、中部干旱带和南部山区ET0贡献率最高的气象要素分别由平均风速、相对湿度和最低温度,变为相对湿度、平均风速和最低温度.
英文摘要	According to the daily meteorological data of 11 national meteorological stations in Ningxia from 1962 to 2017,the Penman-Monteith formula was used to calculate the potential evapotranspiration (ET0) daily value series in Ningxia,using climate tendency rate and Mann-kendall mutation test. ArcGIS inverse distance weighted spatial interpolation,sensitivity analysis and contribution rate were used to analyze the temporal and spatial variation characteristics and influencing factors of ET0 in Ningxia. The results show that the average ET0 of Ningxia region from 1962 to 2017 is 1 073 mm,of which the highest in the central arid zone (1 135 mm),the third in the Yellow River irrigation area (1 095 mm),the lowest in the southern mountainous area (893 mm); the Ningxia ET0 in 1986 occurs the mutation,and the amplitude decreases by 0.571 mm/a before the mutation,and increases by 0.109 mm/a after the mutation. The whole period increases by 0.523 mm/a,but the variation range is not significant. ET0has different sensitivity to meteorological elements in different regions. The Yellow River irrigation area and the central arid zone are most sensitive to the highest temperature,the sensitivity coefficients are 0.41 and 0.43 respectively,and the southern mountainous areas are relative humidity (-0.45). The contribution rate of ET0 is different. The dominant factor in the Yellow River irrigation area and the southern mountain area is the lowest temperature,and the central arid zone is the average wind speed. Before and after the mutation,the meteorological elements with the highest contribution rate to ET0 in the Yellow River irrigation district,the central arid zone and the southern mountain region were changed from average wind speed,relative humidity and minimum temperature to relative humidity,average wind speed and minimum temperature.
中文关键词	宁夏地区 ; 潜在蒸散发 ; 敏感性分析 ; 贡献率
英文关键词	Penman-Monteith Ningxia region Penman-Monteith potential evapotranspiration sensitivity analysis contribution rate
类型	Article
语种	中文
收录类别	CSCD
WOS类目	Meteorology & Atmospheric Sciences
CSCD记录号	CSCD:6905662
资源类型	期刊论文
条目标识符	http://119.78.100.177/qdio/handle/2XILL650/354378
作者单位	李晨, 宁夏大学土木与水利工程学院, 银川, 宁夏 750021, 中国. 董亚萍, 宁夏大学土木与水利工程学院, 银川, 宁夏 750021, 中国. 王双涛, 宁夏大学土木与水利工程学院, 银川, 宁夏 750021, 中国. 王兴, 宁夏大学土木与水利工程学院, 银川, 宁夏 750021, 中国. 赵研, 宁夏大学土木与水利工程学院, 银川, 宁夏 750021, 中国. 李王成, 宁夏大学土木与水利工程学院;;宁夏节水灌溉与水资源调控工程技术研究中心;;旱区现代农业水资源高效利用教育部工程研究中心, ;;宁夏节水灌溉与水资源调控工程技术研究中心;;旱区现代农业水资源高效利用教育部工程研究中心, 银川;;银川;;银川, 宁夏;;宁夏;;宁夏 750021;;750021;;750021, 中国.
推荐引用方式 GB/T 7714	李晨,李王成,董亚萍,等. 宁夏地区潜在蒸散发变化特征及成因分析[J],2021,39(2):186-192.
APA	李晨,李王成,董亚萍,王双涛,王兴,&赵研.(2021).宁夏地区潜在蒸散发变化特征及成因分析.排灌机械工程学报,39(2),186-192.
MLA	李晨,et al."宁夏地区潜在蒸散发变化特征及成因分析".排灌机械工程学报 39.2(2021):186-192.