引用本文: | 黄耀威,何清燕,姜守政,等.西南猕猴桃园蒸散发变化及敏感性分析[J].灌溉排水学报,2022,(10):-. |
| huang yaowei,He qingyan,jiang shouzheng,et al.西南猕猴桃园蒸散发变化及敏感性分析[J].灌溉排水学报,2022,(10):-. |
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西南猕猴桃园蒸散发变化及敏感性分析 |
黄耀威1, 何清燕2, 姜守政1, 崔宁博1, 赵璐1, 郑顺生1, 杨斌环1, 邹清垚1, 王琪凯3
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1.四川大学 水力学与山区河流开发保护国家重点实验室/水利水电学院;2.四川省农业机械研究设计院;3.佳沃成都现代农业有限公司
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摘要: |
【目的】研究西南地区猕猴桃园气候和植物因子对蒸散发(ET)及蒸腾(T)的影响,对于了解该区域水循环和优化水资源配置具有重要意义。【方法】本文基于2018-2019年大田试验和Penman-Monteith模型,分析了西南猕猴桃园近地层水汽通量的控制机理,采用敏感性分析方法量化了猕猴桃园ET及T对气象要素的敏感性。【结果】表明:(1)2018-2019年猕猴桃生育期蒸散发(ET)日平均值分别为2.34 mm d-1和1.95 mm d-1,空气动力项ET(ETaero)分别为1.26 mm d-1和1.13 mm d-1,占总ET的0.69和0.74;(2)2018-2019年猕猴桃生育期T日平均值分别为1.19和1.00 mm d-1,空气动力项T(Taero)分别为0.84 mm d-1和0.75 mm d-1,占总T的0.75和0.80;(3)2018-2019年生育期猕猴桃ET对于水汽压差项(VPD)的敏感性最高,其次是冠层阻力项(rc),可用能量项(Rn-G)和空气动力学项(ra);T对冠层阻力项(rcp)敏感性最高,其次为VPD,冠层可用能量(Rnc)和空气动力学项(ra)。【结论】本研究可为区域农业生产管理与合理利用水资源提供科学的理论基础。 |
关键词: 猕猴桃园;蒸散发(ET);蒸腾(T);Penman-Monteith模型;敏感性 |
DOI: |
分类号:S161.4 |
基金项目:国家自然科学基金资助项目 (51922072,51779161) |
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Evapotranspiration Variation and Sensitivity Analysis of Kiwifruit Orchard in Southwest China |
huang yaowei1, He qingyan2, jiang shouzheng1, cui ningbo1, zhaolu1, zheng shunsheng1, yang binhuan1, zou qingyao1, wang qikai3
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1.State Key Laboratory of Hydraulics and Mountain River Engineering/ College of Water Resource and Hydropower, Sichuan University;2.Sichuan Reseach & Design Institute of Agricultural Machinery;3.JOYVIO
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Abstract: |
To study the effects of climate and plant factors on evapotranspiration (ET) and transpiration (T) in kiwifruit orchards in southwest China is of great significance for understanding the water cycle and optimizing the allocation of water resources in the region. Based on the field experiment and Penman-Monteith model from 2018 to 2019, the control mechanism of near-surface water vapor flux in kiwifruit orchard in southwest China was analyzed. The sensitivity analysis method was used to quantify the sensitivity of ET and T to meteorological factors in kiwifruit orchard. The results showed that: (1) the daily average values of evapotranspiration (ET) during kiwifruit growth period from 2018 to 2019 were 2.34 mm d-1 and 1.95 mm d-1 respectively, and the aerodynamic term ET (ETareo) were 1.26 mm d-1 and 1.13 mm d-1 respectively, accounting for 0.69 and 0.74 of the total ET; (2) From 2018 to 2019, the daily average value of T in kiwifruit growth period was 1.19 and 1.00 mm d-1 respectively, and the aerodynamic term T (Taero) was 0.84 mm d-1 and 0.75 mm d-1 respectively, accounting for 0.75 and 0.80 of the total T; (3) During the growth period from 2018 to 2019, kiwifruit et had the highest sensitivity to water vapor pressure difference (VPD), followed by canopy resistance (rc), available energy (Rn-G) and Aerodynamics (ra); T has the highest sensitivity to canopy resistance term (rcp), followed by VPD, canopy available energy (Rnc) and aerodynamic term (ra). This study can provide a scientific theoretical basis for regional agricultural production management and rational utilization of water resources. |
Key words: Kiwifruit;Orchard, Evapotranspiration (ET), Transpiration (T), Penman-Monteith;model, Sensitivity |