腾发覆盖垃圾填埋场渗沥水控制试验及活性区域模型模拟  

Experimental study and active region simulation of evapotranspiration landfill cover performance

作　　者：王康[1] 周祖昊[2] 王富庆[1] 

机构地区：[1]武汉大学水资源与水电工程科学国家重点实验室,湖北武汉430072 [2]中国水利水电科学研究院水资源研究所,北京100044

出　　处：《武汉大学学报（工学版）》2008年第2期32-36,共5页Engineering Journal of Wuhan University

基　　金：国家自然科学基金资助项目(编号:50528910);湖北省自然科学基金资助项目(编号:2006ABA239)

摘　　要：通过试验研究了不同腾发覆盖层水均衡过程和渗沥控制效果.结果表明:植物在覆盖层水均衡动态中起重要作用,植物的覆盖比例增加将提高覆盖层土壤水消耗速度,覆盖土层厚度60 cm时,植物生长和无植物生长情况下覆盖层实际储水能力分别为97.2 mm和62.8 mm;无植物覆盖情况下的渗沥水量为植物覆盖情况的2.1倍.相比连续性模型,活性区域模型(ARM)更为准确地模拟了覆盖层水均衡过程和渗沥水量,试验和数值模拟结果显示:植物腾发能够更为有效地调节覆盖层水分动态,达到控制渗沥的目的.Field experiments are conducted to assess water balance performance and percolation control ability of various evapotranspiration （ET） covers. Vegetation plays a critical role in controlling the water balance of the ET covers, as shown by the correspondence between rapid water storage decrease and enhanced vegetation productivity. In a 60 cm soil profile, the soil water storage capacities are 97.2 mm and 62.8 mm with and without a vegetation cover, respectively. The percolation amount in the non-vegetated plot is 2.1 times as that of percolation in the vegetation covered soil. Comparing with the Richards; model, the active region model （ARM） is more accurate for predicting percolation. Experimental results and numerical simulation indicate that using ET cover system is more effective in removing water through evapotranspiration and reducing percolation.

关 键 词：腾发覆盖 渗沥水控制 填埋场 活性区域模型 

分 类 号：X705[环境科学与工程—环境工程]