基于蒸渗仪群淮北平原冻融期裸土及麦田潜水蒸发规律研究

TV213.9; 为研究淮北平原冻融期潜水蒸发规律,采用五道沟水文实验站38套原状土蒸渗仪1991—2018年试验资料,采用非线性拟合方法,揭示了冻融期(12—2月)砂姜黑土和黄潮土有无作物潜水蒸发变化规律.结果表明,淮北平原冻融期多表现为昼融夜冻现象,砂姜黑土和黄潮土有无作物潜水蒸发均随埋深的增大呈先增后减趋势,在埋深0.1～0.3 m区间出现最大值,且种植小麦潜水蒸发量比裸地小.裸地情景下高斯函数拟合最好,拟合优度R2均大于0.9,其中砂姜黑土冻融期12—2月潜水蒸发量最大时埋深平均值在0.08 m左右,黄潮土在0.29 m左右.小麦生长情景下类高斯函数拟合最好,拟合优度R2均大于0.9,...

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Published in农业工程学报 Vol. 35; no. 13; pp. 129 - 137
Main Authors 王振龙, 杨秒, 吕海深, 胡永胜, 朱永华, 顾南, 王怡宁
Format Journal Article
LanguageChinese
Published 安徽省(水利部淮委)水利科学研究院水利水资源安徽省重点实验室,蚌埠,233000%河海大学理学院,南京,211100%河海大学水文水资源学院,南京,210098%南京水利科学研究院,南京,210029 01.07.2019
Subjects
地下水
蒸发
淮北平原
冻
融
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ISSN1002-6819
DOI10.11975/j.issn.1002-6819.2019.13.014

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Abstract TV213.9; 为研究淮北平原冻融期潜水蒸发规律,采用五道沟水文实验站38套原状土蒸渗仪1991—2018年试验资料,采用非线性拟合方法,揭示了冻融期(12—2月)砂姜黑土和黄潮土有无作物潜水蒸发变化规律.结果表明,淮北平原冻融期多表现为昼融夜冻现象,砂姜黑土和黄潮土有无作物潜水蒸发均随埋深的增大呈先增后减趋势,在埋深0.1～0.3 m区间出现最大值,且种植小麦潜水蒸发量比裸地小.裸地情景下高斯函数拟合最好,拟合优度R2均大于0.9,其中砂姜黑土冻融期12—2月潜水蒸发量最大时埋深平均值在0.08 m左右,黄潮土在0.29 m左右.小麦生长情景下类高斯函数拟合最好,拟合优度R2均大于0.9,其中砂姜黑土冻融期潜水蒸发最大值对应的埋深为0,潜水蒸发随埋深递减,而黄潮土对应的埋深在0.23 m左右,2种土壤有作物时最大值对应的埋深均比裸地小.拟合的函数形式可直接用于冻融期旬潜水蒸发量的计算.
AbstractList TV213.9; 为研究淮北平原冻融期潜水蒸发规律,采用五道沟水文实验站38套原状土蒸渗仪1991—2018年试验资料,采用非线性拟合方法,揭示了冻融期(12—2月)砂姜黑土和黄潮土有无作物潜水蒸发变化规律.结果表明,淮北平原冻融期多表现为昼融夜冻现象,砂姜黑土和黄潮土有无作物潜水蒸发均随埋深的增大呈先增后减趋势,在埋深0.1～0.3 m区间出现最大值,且种植小麦潜水蒸发量比裸地小.裸地情景下高斯函数拟合最好,拟合优度R2均大于0.9,其中砂姜黑土冻融期12—2月潜水蒸发量最大时埋深平均值在0.08 m左右,黄潮土在0.29 m左右.小麦生长情景下类高斯函数拟合最好,拟合优度R2均大于0.9,其中砂姜黑土冻融期潜水蒸发最大值对应的埋深为0,潜水蒸发随埋深递减,而黄潮土对应的埋深在0.23 m左右,2种土壤有作物时最大值对应的埋深均比裸地小.拟合的函数形式可直接用于冻融期旬潜水蒸发量的计算.
Author 胡永胜
杨秒
吕海深
王怡宁
朱永华
王振龙
顾南
AuthorAffiliation 安徽省(水利部淮委)水利科学研究院水利水资源安徽省重点实验室,蚌埠,233000%河海大学理学院,南京,211100%河海大学水文水资源学院,南京,210098%南京水利科学研究院,南京,210029
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Author_FL Zhu Yonghua
Gu Nan
Wang Zhenlong
Lü Haishen
Hu Yongsheng
Yang Miao
Wang Yining
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蒸发
淮北平原
冻
融
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StartPage 129
Title 基于蒸渗仪群淮北平原冻融期裸土及麦田潜水蒸发规律研究
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