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晉陜蒙能源區(qū)不同構(gòu)型土體水分入滲特性模擬
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國(guó)家自然科學(xué)基金資助項(xiàng)目(41101528)、中國(guó)科學(xué)院西部行動(dòng)計(jì)劃資助項(xiàng)目(KZCX2-XB3-13-02)和科技部科技惠民計(jì)劃資助項(xiàng)目(2012GS610203)


Simulation of Infiltration Characteristics with Various Soil Configurations in Shanxi-Shaanxi-Inner Mongolia Energy Zone
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    摘要:

    采用一維垂直積水入滲試驗(yàn),研究晉陜蒙能源區(qū)不同構(gòu)型土體的水分入滲特性。結(jié)果表明:不同構(gòu)型土體的入滲能力差異明顯,表現(xiàn)為風(fēng)沙土、黃土、砒砂巖的入滲能力依次降低,風(fēng)沙土和黃土中采用混合添加和分層添加砒砂巖的方式均可以延長(zhǎng)入滲時(shí)間并能降低入滲速率;在控制較高容重的條件下,含有料姜石和煤矸石的土體入滲能力低;層狀結(jié)構(gòu)土體的入滲能力低于均質(zhì)土壤;采用線性函數(shù)可以很好地描述不同構(gòu)型土體累積入滲量與濕潤(rùn)鋒推進(jìn)距離之間的關(guān)系;與Philip入滲模型相比,Kostiakov入滲模型可以更好地?cái)M合不同構(gòu)型土體的入滲過程。

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    The soil infiltration characteristic is one of the most important soil physical properties. The structure and texture of the soil configuration in Shanxi-Shaanxi-Inner Mongolia energy zone are quite complex which results in different infiltration properties. The infiltration characteristics of different soil configurations were analyzed by one-dimensional vertical infiltration experiment. The results showed that soil infiltration characteristics were strongly influenced by soil configuration, and the infiltration capacity was decreased in the order of aeolian sandy soil, loess soil and soft rock. The mixed and layered addition of soft rock to aeolian sandy soil and loess soil both could extend infiltration time and reduce infiltration rate. The infiltration process of soil containing calcites and gangue was inhibited under the high bulk density condition. Layered structure soil had a lower infiltration capacity than that of homogeneous soil. The relationship between cumulative infiltration and wetting front advancing distance could be well expressed as a linear function model. Kostiakov infiltration model could better fit the infiltration process with different configurations (R2>093) than that of Philip model. The results provided an experimental evidence for soil water movement process and also offered a technical support for the reconstruction and reclamation of mining soils in Shanxi-Shaanxi-Inner Mongolia energy zone.

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甄慶,攝曉燕,張應(yīng)龍,韓鳳朋,張興昌.晉陜蒙能源區(qū)不同構(gòu)型土體水分入滲特性模擬[J].農(nóng)業(yè)機(jī)械學(xué)報(bào),2015,46(8):90-96. Zhen Qing, She Xiaoyan, Zhang Yinglong, Han Fengpeng, Zhang Xingchang. Simulation of Infiltration Characteristics with Various Soil Configurations in Shanxi-Shaanxi-Inner Mongolia Energy Zone[J]. Transactions of the Chinese Society for Agricultural Machinery,2015,46(8):90-96.

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  • 收稿日期:2014-09-23
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  • 在線發(fā)布日期: 2015-08-10
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