| 郑州市作物需水量变化特征研究 |
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| 引用本文： | 王丽红,黎国胜,郑玲. 郑州市作物需水量变化特征研究[J]. 节水灌溉, 2011, 0(2): 11-14 |
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| 作者姓名： | 王丽红 黎国胜 郑玲 |
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| 作者单位： | 1. 湖北省水利水电职业技术学院,湖北,武汉,430072;天津大学建筑工程学院,天津,300072
2. 湖北省水利水电职业技术学院,湖北,武汉,430072 |
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| 摘 要： | 作物需水量是灌溉决策和水资源规划的重要依据,研究其变化特征对农业用水的正确决策具有重要意义.基于郑州市1955-2009年逐日气象资料,采用Mann-Kendall趋势分析法和R/S(重标极差)分析法对主要作物需水量的变化特征进行了研究.结果表明:夏玉米和冬小麦作物需水量均呈明显降低趋势.夏玉米需水主要影响因子为日照时...
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| 关 键 词： | 作物需水量 Mann-Kendall趋势分析法 R/S分析法 分形特征 长程相关性 |
Study on Variation Characteristics of Crop Water Requirement in Zhengzhou City |
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| WANG Li-hong , LI Guo-sheng , ZHENG Ling. Study on Variation Characteristics of Crop Water Requirement in Zhengzhou City[J]. Water Saving Irrigation, 2011, 0(2): 11-14 |
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| Authors: | WANG Li-hong LI Guo-sheng ZHENG Ling |
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| Affiliation: | WANG Li-hong1,2,LI Guo-sheng1,ZHENG Ling1(1.Hubei Water Resources Technical College,Wuhan 430072,China,2.School of Civil Engineering,Tianjin University,Tianjin 300072,China) |
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| Abstract: | Study on the variation characteristics of crop water requirement is important for irrigation scheduling,water resources planning and future decision-making.In this paper,the Mann-Kendall trend and Rescaled Range Analysis(R/S) method are adopted to study the variation characteristics of the main crop water requirement base on the daily meteorological data from 1955 to 2009 in Zhengzhou City.The results show that the water requirement of the summer maize and the winter wheat shows down trend.The main affectin... |
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| Keywords: | crop water requirement Mann-Kendall trend R/S analysis method fractal property long-range correlation |
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