| 南通市参考作物腾发量长期变化趋势分析 |
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| 引用本文： | 段衍衍,杨树滩,杨 涛,胡晓雨. 南通市参考作物腾发量长期变化趋势分析[J]. 水电能源科学, 2015, 33(2): 19-21 |
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| 作者姓名： | 段衍衍 杨树滩 杨 涛 胡晓雨 |
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| 作者单位： | 1. 河海大学 水文水资源学院， 江苏 南京 210098； 2. 江苏省水资源服务中心， 江苏 南京 210029 |
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| 基金项目： | 国家自然科学基金面上项目（41371051）；江苏省水利科技项目（51262212，51329212） |
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| 摘 要： | 基于南通站和吕泗站1961~2011年的逐日气象资料,利用彭曼公式计算两站的参考作物腾发量(ET0),运用滑动平均、累计距平、M-K等方法分析了两站ET0的变化趋势及不同季节的变化特征。结果表明,长系列中吕泗站ET0有明显上升趋势,南通站ET0变化趋势不明显,但1980年代中期ET0有显著上升趋势;吕泗站和南通站ET0春季上升显著,而降水、相对湿度与ET0具有负相关性,由此可知南通市ET0变化对南通市作物生长存在较大不利影响。
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| 关 键 词： | 参考作物腾发量 趋势分析 M-K法 滑动平均法 南通市 |
Long term Variation Trend Analysis of Reference Crop Evapotranspiration in Nantong City |
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| DUAN Yan-yan;YANG Shu-tan;YANG Tao;HU Xiao-yu. Long term Variation Trend Analysis of Reference Crop Evapotranspiration in Nantong City[J]. International Journal Hydroelectric Energy, 2015, 33(2): 19-21 |
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| Authors: | DUAN Yan-yan YANG Shu-tan YANG Tao HU Xiao-yu |
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| Affiliation: | DUAN Yan-yan;YANG Shu-tan;YANG Tao;HU Xiao-yu;College of Hydrology and Water Resources,Hohai University;Water Resources Center of Jiangsu Province; |
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| Abstract: | Based on the daily meteorological data at Nantong and Lvsi stations from 1961 to 2011, the reference crop evapotranspiration (ET0) was calculated by Penman Monteith equation. The trend and season variation characteristics of ET0 were analyzed by using moving average method, cumulative anomaly method and Mann Kendall test method. The results show that there was an upward trend for ET0 at Lvsi station and the ET0 at Nantong station was not obvious. But after the mid 1980s, the trend of ET0 at the Nantong and Lvsi station had a significant upward trend. There was a significant upward trend in spring. As the precipitation and the relative humidity had a negative correlation with the ET0, the trends of ET0 in Nantong City is adverse to the spring crops. |
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