首页|辽宁省作物生长季参考作物腾发量变化分析

辽宁省作物生长季参考作物腾发量变化分析

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  • 国家科技期刊平台
  • NETL
  • NSTL
  • 万方数据
利用 1961-2020 年辽宁省 56 个国家级气象观测站生长季的逐日气象观测数据,采用Penman-Monteith公式计算辽宁省参考作物腾发量(ET0),利用ArcGIS的克里格插值法、M-K检验分析辽宁省生长季ET0 的时空分布特征,对影响ET0 变化的气象因子进行了分析.结果表明:近 60 年辽宁省生长季参考作物腾发量呈现由西北向东南递减的变化趋势;ET0 在 1961-2010 年呈下降趋势,2011-2020 年呈升高趋势,生长季多年平均ET0 变化趋势表现为波动下降;生长季内ET0 对相对湿度的响应最为敏感,为负效应;ET0 对风速和温度变化敏感性相对较小,为正效应.湿度的敏感系数绝对值明显高于风速和温度,7 月达到峰值;多年相对变化率绝对值最大的是风速,其次是温度和相对湿度;对ET0 贡献最大的是风速,温度和湿度对ET0 的正贡献不及风速的负贡献,综合敏感性和贡献两方面因素分析,风速的变化趋势为ET0 呈下降趋势的主导因子.
Change Characteristics and Cause Analysis of Reference Crop Evapotranspiration during the Growing Season in Liaoning Province
Based on daily meteorological observation data from 62 national meteorological observation stations in Liaoning province during the growing season from 1961 to 2020,the Penman Monteith equation was used to calculate the reference crop evapotranspiration(ET0)in Liaoning province.Using ArcGIS Kriging interpolation method and M-K test,the temporal and spatial distribution characteristics of ET0 in Liaoning province during the growing season were analyzed,and the causes of ET0 changes were analyzed.The results indicated that the reference crop ET 0 in Liaoning province during the growing season in the past 60 years showed a decreasing trend from the northwest to the southeast.The ET0 showed a declining pattern from 1961 to 2010,and followed by an ascending trend from 2011 to 2020.The variation trend of multi-year average ET 0 during the growing season showed a fluctuating downward trend.The response of ET0 during the growing season to relative humidity was the most sensitive,which was a negative effect,and the response sensitivity of ET0 to wind speed and temperature changes was relatively small,which was a positive effect.The absolute value of the sensitivity coefficient of ET0 to humidity was significantly higher than those to wind speed and temperature.The maximum value of the sensitivity coefficient of ET 0 to humidity appeared in July.The absolute value of the multi-year relative change rate of change was the largest in wind speed,followed by temperature and relative humidity.Wind speed was the largest contribution of the three meteorological elements to ET0,and the positive contribution of temperature and humidity to ET0 was less than the negative contribution of wind speed.According to the comprehensive sensitivity and contribution of two factors analysis,the changing trend of wind speed was the dominant factor for the declining trend of ET0.

reference crop evapotranspirationsensitivitycontribution ratemeteorological factorsLiaoning province

温日红、肇同斌、张钰祺、冯艾琳、姜鹏、崔雪、王笑影

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中国气象局沈阳大气环境研究所,辽宁 沈阳 110166

盘锦国家气候观象台,辽宁 盘锦 124000

辽宁省气象信息中心,辽宁 沈阳 110166

辽宁省气象服务中心,辽宁 沈阳 110166

辽宁省生态气象和卫星遥感中心,辽宁 沈阳 110166

辽宁省林业有害生物防治检疫站,辽宁 沈阳 110001

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腾发量 敏感性 贡献率 气象因子 辽宁省

国家重点研发计划项目辽宁省气象局年度基金项目辽宁省气象局核心攻关项目中国气象局沈阳大气环境研究所基本科研业务费项目中国气象局沈阳大气环境研究所基本科研业务费项目中国气象局沈阳大气环境研究所基本科研业务费项目干旱气象科学研究基金项目

2022YFF0801301202406202414LNCP2022052020SYIAEMS12018SYIAEZD32017SYIAEMS3IAM202010

2024

10.12057/j.issn.1002-0799.2024.04.020

沙漠与绿洲气象
新疆维吾尔自治区气象学会 中国气象局乌鲁木齐沙漠气象研究所

沙漠与绿洲气象

CSTPCD
影响因子：1.007
ISSN：1002-0799
年,卷(期)：2024.18(4)
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