This article describes the distribution characteristics of soil microbial in different vegetable types in artificial wetland restoration. The results show that quantity of microbial had a significant increase before and after restoration. The value of Polygonum hydropiper sample was largest. The sequence of increase was Polygonum hydropiper,Phragmites communis Trin,Typha angustifolia and bare land; Referring to the change of three types of microorganisms, bacteria enhance 2.16 times largest; Meanwhile fungi go up 1.11 times least. The range of microbial diversity value before restoration is 0.2437-0.7633, and after is 0.1163-0.4069;Bacteria amount had significant correlation with TN.
In order to describe petroleum hydrocarbon contaminants (PHCs) transport feature in saturated zone, two-dimensional sandbox was designed to carry out physical simulation experiment, and infiltration, migration and distribution of PHCs in saturated zone were investigated. Meanwhile, MOFAT simulator was selected to carry out numerical simulation research, and simulator accuracy was analyzed by comparing to physical simulation data. Results indicated that MOFAT simulator could simulate and predict PHCs transport behavior in saturated zone.
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