淮北平原裸土潜水蒸发趋势及其影响因素分析

为揭示淮北平原裸土潜水蒸发规律及机理,该文依据五道沟实验站1991-2008年潜水蒸发及水文气象观测资料,分析裸土潜水蒸发的年内分配规律以及随土质、埋深的变化趋势,采用累积距平曲线法和Mann-Kendall法联合检测了该区域年、季节时间序列的裸土潜水蒸发变化趋势,并用SPSS统计学软件分析不同气象要素对2种土质、不同埋深裸土潜水蒸发的影响。结果表明：黄潮土潜水蒸发量与砂姜黑土的潜水蒸发量比值随着埋深的增加在扩大;淮北平原裸土历年潜水蒸发量呈增加趋势,不符合＂蒸发悖论＂,春季对年潜水蒸发量增加的贡献率最大;气象要素对砂姜黑土和黄潮土的最大影响深度分别是0.4和1.0m;在垂直方向上热量的年内传...

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Bibliographic Details
Published in农业工程学报 Vol. 27; no. 6; pp. 73 - 78
Main Author 郝振纯 陈玺 王加虎 孙乐强 王振龙
Format Journal Article
LanguageChinese
Published 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%安徽省水利水资源重点实验室,蚌埠,233000 2011
Subjects
土壤含水率
气象学
气象要素
淮北平原
潜水蒸发
蒸发
蒸发悖论
蒸渗仪
趋势
蒸渗仪
潜水蒸发
趋势
蒸发悖论
蒸发
淮北平原
土壤含水率
气象要素
气象学
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ISSN1002-6819
DOI10.3969/j.issn.1002-6819.2011.06.013

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Summary:为揭示淮北平原裸土潜水蒸发规律及机理,该文依据五道沟实验站1991-2008年潜水蒸发及水文气象观测资料,分析裸土潜水蒸发的年内分配规律以及随土质、埋深的变化趋势,采用累积距平曲线法和Mann-Kendall法联合检测了该区域年、季节时间序列的裸土潜水蒸发变化趋势,并用SPSS统计学软件分析不同气象要素对2种土质、不同埋深裸土潜水蒸发的影响。结果表明：黄潮土潜水蒸发量与砂姜黑土的潜水蒸发量比值随着埋深的增加在扩大;淮北平原裸土历年潜水蒸发量呈增加趋势,不符合＂蒸发悖论＂,春季对年潜水蒸发量增加的贡献率最大;气象要素对砂姜黑土和黄潮土的最大影响深度分别是0.4和1.0m;在垂直方向上热量的年内传递过程与潜水蒸发量年内分配一致。该研究为准确把握潜水蒸发规律、更好的认识水文循环提供依据。
Bibliography:11-2047/S
evaporation; soil moisture; meterology; lysimeters; Huaibei Plain; phreatic evaporation; trend; evaporation paradox; meteorological element
To reveal the law and mechanism of the bare soil evaporation on Huaibei Plain,using observation data from hydrological station of Wudaogou in the area of Huaibei from 1991 to 2008.The paper analyzed the monthly distribution of evaporation from the shallow phreatic groundwater in bare soil and the trend changing with soil texture and depth,determined the seasonal time series trend of evaporation from the shallow phreatic groundwater in bare soil of this region using the cumulative departure curve method combined with the Mann-Kendall method.The forces of phreatic evaporation was also explored by investigating several hydro-meteorological elements on the two kinds of soil texture and the depth of the impact using statistical software SPSS.The results showed that the ratio of evaporation between fluvo-aquic soil and lime concretion black soil expanded with the increa
ISSN:1002-6819
DOI:10.3969/j.issn.1002-6819.2011.06.013