淮北平原冬小麦作物系数的变化规律研究
【目的】研究淮北平原冬小麦作物系数的时空变化规律。【方法】采用水量平衡法、涡度相关法和Bouchet互补关系理论，结合Penman-Montieth方程，计算得到1991—2018年淮北平原冬小麦的作物系数；采用线性拟合法、Mann-Kendall趋势检验法和突变检验法滑动t检验法，结合ArcGIS，研究了作物系数在淮北平原的时空变化规律，并对影响因素进行分析。【结果】①淮北平原冬小麦全生育期的实际蒸散量的多年平均值为429.3 mm，参考作物蒸散量为541.3 mm，作物系数为0.79；②作物系数在不同生育阶段的变化为先减小后增大再减小；③作物系数在淮北平原全生育期由西北角向周围逐渐增大，高...
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| Published in | Guanʻgai paishui xuebao Vol. 40; no. 2; pp. 118 - 124 |
|---|---|
| Main Authors | , , , |
| Format | Journal Article |
| Language | Chinese English |
| Published |
Xinxiang City
Chinese Academy of Agricultural Sciences (CAAS) Farmland Irrigation Research Institute Editorial Office of Journal of Irrigation and Drainage
01.02.2021
河海大学水文水资源学院,南京210098%河海大学水文水资源学院,南京210098 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%安徽省(水利部淮委)水利科学研究院,安徽蚌埠233000 |
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| Online Access | Get full text |
| ISSN | 1672-3317 |
| DOI | 10.13522/j.cnki.ggps.2020482 |
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| Abstract | 【目的】研究淮北平原冬小麦作物系数的时空变化规律。【方法】采用水量平衡法、涡度相关法和Bouchet互补关系理论，结合Penman-Montieth方程，计算得到1991—2018年淮北平原冬小麦的作物系数；采用线性拟合法、Mann-Kendall趋势检验法和突变检验法滑动t检验法，结合ArcGIS，研究了作物系数在淮北平原的时空变化规律，并对影响因素进行分析。【结果】①淮北平原冬小麦全生育期的实际蒸散量的多年平均值为429.3 mm，参考作物蒸散量为541.3 mm，作物系数为0.79；②作物系数在不同生育阶段的变化为先减小后增大再减小；③作物系数在淮北平原全生育期由西北角向周围逐渐增大，高值中心呈现北移趋势；④作物系数与气候因子紧密相关，其中气温的影响最为显著，相对湿度和降水次之，风速最不显著。【结论】作物系数存在显著上升趋势，与气候因子关系紧密，需要关注作物需水量的变化。 |
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| AbstractList | S274; [目的]研究淮北平原冬小麦作物系数的时空变化规律.[方法]采用水量平衡法、涡度相关法和Bouchet互补关系理论,结合Penman-Montieth方程,计算得到1991-2018年淮北平原冬小麦的作物系数;采用线性拟合法、Mann-Kendall趋势检验法和突变检验法滑动t检验法,结合ArcGIS,研究了作物系数在淮北平原的时空变化规律,并对影响因素进行分析.[结果]①淮北平原冬小麦全生育期的实际蒸散量的多年平均值为429.3 mm,参考作物蒸散量为541.3 mm,作物系数为0.79;②作物系数在不同生育阶段的变化为先减小后增大再减小;③作物系数在淮北平原全生育期由西北角向周围逐渐增大,高值中心呈现北移趋势;④作物系数与气候因子紧密相关,其中气温的影响最为显著,相对湿度和降水次之,风速最不显著.[结论]作物系数存在显著上升趋势,与气候因子关系紧密,需要关注作物需水量的变化. 【目的】研究淮北平原冬小麦作物系数的时空变化规律。【方法】采用水量平衡法、涡度相关法和Bouchet互补关系理论，结合Penman-Montieth方程，计算得到1991—2018年淮北平原冬小麦的作物系数；采用线性拟合法、Mann-Kendall趋势检验法和突变检验法滑动t检验法，结合ArcGIS，研究了作物系数在淮北平原的时空变化规律，并对影响因素进行分析。【结果】①淮北平原冬小麦全生育期的实际蒸散量的多年平均值为429.3 mm，参考作物蒸散量为541.3 mm，作物系数为0.79；②作物系数在不同生育阶段的变化为先减小后增大再减小；③作物系数在淮北平原全生育期由西北角向周围逐渐增大，高值中心呈现北移趋势；④作物系数与气候因子紧密相关，其中气温的影响最为显著，相对湿度和降水次之，风速最不显著。【结论】作物系数存在显著上升趋势，与气候因子关系紧密，需要关注作物需水量的变化。 |
| Author | WANG Zhenlong LYU Haisheng HUA Jiacheng ZHU, Yonghua |
| AuthorAffiliation | 河海大学水文水资源学院,南京210098%河海大学水文水资源学院,南京210098;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%安徽省(水利部淮委)水利科学研究院,安徽蚌埠233000 |
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| Keywords | 参考作物蒸散量 淮北平原 作物系数 冬小麦 实际蒸散量 |
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| SubjectTerms | Cereal crops Climate change Crops Evapotranspiration Farm structure Hydrologic cycle Irrigation Irrigation water Relative humidity Spatiotemporal data Temperature requirements Transpiration Triticum aestivum Variation Water balance Water management Water requirements Water uptake Wheat Wind speed Winter Winter wheat |
| Title | 淮北平原冬小麦作物系数的变化规律研究 |
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