| 引用本文: | 郑润桥,费良军,介飞龙,等.区域灌溉需水量时空变化特征及其影响因素研究 ——以鲁西北地区为例[J].灌溉排水学报,0,():-. |
| zhengrunqiao,feiliangjun,jiefeilong,et al.区域灌溉需水量时空变化特征及其影响因素研究 ——以鲁西北地区为例[J].灌溉排水学报,0,():-. |
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| 摘要: |
| 【目的】为探寻鲁西北地区灌溉需水量时空分布特征及影响因素，指导农业水资源合理配置。【方法】选取冬小麦为主要研究对象，使用Penman-Monteith公式对鲁西北地区灌溉需水量进行计算，应用Mann-Kendall趋势检验分析法分析其变化趋势，得出鲁西北地区灌溉需水量的时间分布规律，使用反距离权重插值法得出灌溉需水量空间分布规律，并利用Pearson相关分析法对各气象因素对灌溉需水量的影响程度进行分析比较。【结果】计算得到德州、惠民、羊角沟、朝城、济南气象站点在1960—2015年的灌溉需水量及多年平均灌溉需水量空间插值结果，并得到灌溉需水量与各气象要素的相关系数。【结论】分析表明：（1）鲁西北地区的年平均灌溉需水量为339 mm，年际变化呈现上升趋势；（2）灌溉需水量空间变化呈带环状分布，各生育期内规律不相同；（3）相对湿度和日照时数是影响鲁西北地区灌溉水量其较为重要的因素，分别呈极强负相关与较强正相关。 |
| 关键词: 关键词：灌溉需水量；时空变化；影响因素 |
| DOI： |
| 分类号:S274.4 |
| 基金项目:国家自然科学(52079105)；陕西省水利科技项目(2020SLKJ-19) |
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| Study on Spatial-Temporal Variation Characteristics of Regional Irrigation Water Requirement and its Influencing Factors —Take Northwest Region of Shandong Province as an Example |
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zhengrunqiao1,2,3, feiliangjun1,2,3, jiefeilong1,2,3, liulihua1,2,3, liunian1,2,3, Yan Siyu4
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1.Xi'2.'3.an University of Technology;4.Xi 'an University of Technology
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| Abstract: |
| 【Object】In order to explore the temporal and spatial distribution characteristics and influencing factors of irrigation water demand in the northwest of Shandong province and to guide the rational allocation of agricultural water resources.【Methods】This paper calculates irrigation water requirement in the northwest of Shandong Province with Penman-Monteith formula, and analyses its variation trend with Mann-Kendall trend test, obtaining the time distribution law of irrigation water requirement in the northwest of Shandong Province. Meanwhile, the Inverse Distance Weighting(IDW)Interpolation Method is applied to obtain the spatial distribution law of irrigation water requirement. The Pearson correlation analysis method is also used to analyze and compare the meteorological factors and the influence degree of irrigation water requirement.【Results】The spatial interpolation results of irrigation water demand of Dezhou, Huimin, Yangjiaogou, Chaocheng and Jinan meteorological stations from 1960 to 2015 and multi-year average irrigation water demand were calculated, and the correlation coefficients between irrigation water demand and meteorological elements were obtained.
【Conclusion】The results show that: (1) the annual average irrigation water demand in the northwest of Shandong Province is 339 mm, and the inter-annual variation shows an upward trend; (2) the distribution of spatial variation of irrigation water demand is ring-shaped, with different laws in each growth period; (3) relative humidity and sunshine duration are the most important factors affecting irrigation water quantity in the northwest of Shandong province, showing extreme negative correlation and strong positive correlation respectively. |
| Key words: irrigation water requirement; spatial-temporal variation; influencing factors; future trend |
