When the device is also need to clean up the surrounding environment, the site of the site preparation work:

1, cut in addition to no special preservation value, so that the system of construction equipment can not get the full implementation of the trees. From the environmental point of view, this damage on slope vegetation mostly only a temporary, because of the openness of the system, the stumps will through the mesh de novo growth out of the new branches.

2, to eradicate the influence of construction and construction safety of the slope surface, pumice. Under some conditions of slope, the slope of topsoil, pumice is to eradicate endless, just to ensure that the implementation of the security of the system is not fully to stamp out, in fact, in some cases, if fully eradicated, flexible protection maybe is not necessary may be able to choose more economic protection measures.