| 海河流域参考作物腾发量长期变化趋势分析 |
| |
| 引用本文： | 罗玉峰,缴锡云,彭世彰,王卫光,徐俊增.海河流域参考作物腾发量长期变化趋势分析[J].灌溉排水学报,2009,28(1). |
| |
| 作者姓名： | 罗玉峰 缴锡云 彭世彰 王卫光 徐俊增 |
| |
| 作者单位： | 罗玉峰,缴锡云,彭世彰,徐俊增,LUO Yu-feng,JIAO Xi-yun,PENG Shi-zhang,XU Jun-zeng(河海大学水文水资源与水利工程科学国家重点实验室,南京,210098);王卫光,WANG Wei-guang(河海大学水文水资源与水利工程科学国家重点实验室,南京,210098;河海大学水文水资源学院,南京,210098)
|
| |
| 基金项目： | 国家重点基础研究发展规划(973计划)，水文水资源和水利工程科学国家重点实验室开放基金，河海大学自然科学基金 |
| |
| 摘 要： | 收集了海河流域37个国家气象站的逐日气象资料,采用FAO-56 Penman-Monteith方法计算参考作物腾发量(ET0);采用Mann-Kendall法进行趋势检验。通过分析及各气象因素的变化趋势,揭示了气候变化对参考作物腾发量长期变化规律及对作物灌溉供需水量可能产生的影响。结果表明:自20世纪50年代至2007年末,在海河流域下游地区具有较明显的ET0下降趋势,而在各主要河流的上游地区则有明显的上升趋势;其原因是整个流域内呈现气温上升相对湿度下降趋势,风速和日照时数都有下降趋势,但在上游地区前者占主导地位,而在下游地区后者占主导地位;在整个流域降雨呈现下降趋势的情况下,ET0上升使上游地区灌溉需水量增加,而在下游地区作物生长也可能受影响;除了工业和居民用水快速增长外,气候变化也是导致近几十年来海河流域水资源紧缺的原因之一。
|
| 关 键 词： | 参考作物腾发量 气候变化 海河流域 趋势检验 |
Analysis of Long-term Trends in Reference Crop Evapotranspiration in Haihe Basin |
| |
| LUO Yu-feng a,JIAO Xi-yun a,PENG Shi-zhang a,WANG Wei-guang a,b,XU Jun-zeng a.Analysis of Long-term Trends in Reference Crop Evapotranspiration in Haihe Basin[J].Journal of Irrigation and Drainage,2009,28(1). |
| |
| Authors: | LUO Yu-feng a JIAO Xi-yun a PENG Shi-zhang a WANG Wei-guang a b XU Jun-zeng a |
| |
| Institution: | Hohai University a.State Key Laboratory of Hydrology-Water Resources and Hydraulic Engineering;b.School of Hydrology and Water Resources;Nanjing 210098;China |
| |
| Abstract: | Daily weather data for 37 national meteorologic stations in the Haihe Basin were collected,and the FAO56 method was employed to calculate reference crop evapotranspiration(ET0).Long-term trends in ET0 and related meteorologic parameters were detected using Mann-Kendall test.Finally the impacts of climate change on variations of ET0 and possible responses in crop irrigation requirements were investigated.The results show that there was a decreasing trend in ET0 in the Lower Haihe Basin,as a contrast,increase... |
| |
| Keywords: | reference crop evapotranspiration climate change Haihe Basin trend detect |
| 本文献已被 CNKI 万方数据 等数据库收录！ |
|
