中国农业科学院农业信息研究所 中国农学会
Agricultural Information Institute of CAAS China Association of Agricultural Science Societies
En
Ch
中国农业科学院农业信息研究所 中国农学会 主办

AI检索

订阅

返回顶部
当前位置: 首页 > 文章 > 黄土高原地区生长季参考作物蒸散量对主要气象要素的敏感性分析 中国农业气象 2013,34 (2) 162-169
Position: Home > Articles > 黄土高原地区生长季参考作物蒸散量对主要气象要素的敏感性分析 Chinese Journal of Agrometeorology 2013,34 (2) 162-169

黄土高原地区生长季参考作物蒸散量对主要气象要素的敏感性分析

作  者：
张调风;张勃;梁芸;韩兰英;刘秀丽;王东
单  位：
西北区域气候中心;西北师范大学地理与环境科学学院
关键词：
参考作物蒸散量;Penman-Monteith方程;敏感系数;黄土高原地区
摘  要：
为预测气候因子变化引起的区域参考作物蒸散量(ET0)的变化,以黄土高原地区为研究区,运用FAO Penman-Montieth方程计算了68个站点1961-2010年生长季参考作物蒸散量,并计算其对平均气温、太阳辐射、风速和实际水汽压的敏感系数,最后分析了敏感系数的时空变化特征.结果表明,黄土高原地区生长季ET0对实际水汽压最敏感,其次是太阳辐射和平均气温,对风速的敏感性最低;平均气温的敏感系数和实际水汽压敏感系数绝对值呈单峰型分布,二者分别在7月、9月达到最大值,太阳辐射敏感系数表现为持续上升趋势,风速敏感系数波动幅度最小,其值在4月最大;生长季气候因子敏感系数的空间差异性显著,平均气温敏感系数西部明显大于东部,太阳辐射敏感系数在高海拔地区形成高值区,风速敏感系数在西风带Ⅳ区形成高值区,实际水汽压敏感系数在黄土高原湿润地带最大.
单  位：
College of Geography and Environmental Science,Northwest Normal University,Lanzhou 730070,China%Northwest Regional Climate Center,Lanzhou 730020%China Department of Geography,Xinzhou Teachers University,Xinzhou 034000
关键词：
Reference crop evapotranspiration%Penman-Monteith equation%Sensitivity coefficient%Loess Plateau
摘  要：
In order to predict the responses of reference crop evapotranspiration(ET0) to climate factors change,growing seasonal ET0 of 68 meteorological stations in the Loess Plateau from 1961 to 2010 was estimated by using of FAO-56 Penman-Monteith equation.Sensitivity coefficients of ET0 to average temperature,shortwave radiation,wind speed,and vapor pressure were calculated and their temporal-spatial distributions were analyzed.The results showed that vapor pressure was the most sensitive factor to ET0 in the region,followed by shortwave radiation and average temperature and wind speed.During growing season,the highest sensitive coefficient to average temperature was in July,while the absolute sensitive coefficient to vapor pressure was in September,the sensitive coefficient to shortwave radiation increased from April to October,the highest sensitive coefficient to wind speed was in April.The sensitive coefficients to all climate factors indicated large spatial variability.The sensitive coefficient to average temperature was higher in the eastern than in the western.The peak value of sensitive coefficient to shortwave radiation was in high elevation area,the peak value of sensitive coefficient to wind speed was in the western,while the peak value of sensitive coefficient to vapor pressure was in the relatively moist region.

相似文章

导出引用
计量
文章访问数: 14
HTML全文浏览量: 0
PDF下载量: 0

所属期刊

推荐期刊

友情链接Friendly link
农业信息研究所Agricultural information institute 农业智能知识服务平台Agricultural intelligent knowledge service platform 农业学术服务平台Agricultural Knowledge Service System 中国知网CNKI 维普网VIP 万方WANFANG DATA
联系我们Contact us

电话Tell：010-82109652-808

邮箱E-mail：agrijournal@caas.cn

服务Service
关于我们About us 意见建议Opinions and suggest
版权说明Copyright
单位：中国农业科学院农业信息研究所 中国农学会 © 2017中国农业科学院农业信息研究所 ICP备案号：京ICP备09089781号-46