农业工程学报2011，Vol.27Issue(6)：73-78,6.DOI:10.3969/j.issn.1002-6819.2011.06.013
淮北平原裸土潜水蒸发趋势及其影响因素分析
Trend and impact factors of evaporation from shallow phreatic groundwater of bare soil on Huaibei Plain in China
摘要
Abstract
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 increase of phreatic depth. The evaporation quantity of bare soil on Huaibei Plain over the years increased in Spring giving the greatest contribution; however, it did not meet the "evaporation paradox". For the lime concretion black soil depth at 0.4 m to shallow and fluvo-aquic soil at 1.0 m to shallow, it showed a significant correlation between phreatic groundwater evaporation and main meteorological factors. This indicated that the transfer process of geothermal heat in the vertical direction coincided with the evaporation distribution of the year. The results of the current study will be greatly beneficial to grasp the evaporation rules accurately and understand the hydrologic cycle better.关键词
蒸发；土壤含水率；气象学；蒸渗仪；淮北平原；潜水蒸发；趋势；蒸发悖论；气象要素Key words
evaporation/ soil moisture/ meterology/ lysimeters/ Huaibei Plain/ phreatic evaporation/ trend/ evaporation paradox/ meteorological element分类
建筑与水利引用本文复制引用
郝振纯,陈玺,王加虎,孙乐强,王振龙..淮北平原裸土潜水蒸发趋势及其影响因素分析[J].农业工程学报,2011,27(6):73-78,6.基金项目
国家重点基础研究发展计划(2010CB951101)；国家自然科学基金项目(40830639 （2010CB951101）
50879016；40801012) （）
中国科学院战略性先导科技专项(XDA05110102)；水利部公益性项目(200801027)：水文水资源与水利工程科学国家重点实验室专项(1069-50985512) （XDA05110102）
