The article describes the features of the landscape and floral estate complexes Semiluki municipal district of the Voronezh region. Field studies were carried out in June 2014 and April 2016. 10 estate complexes were studied. Estate complexes play an important role and environment-forming portions can serve ecological framework nuclei. It is also important recreational value of estates. It was analyzed landscape structure Semiluki area and is made up of estates map of location within the types of terrain. Morphological and aesthetic features estate complexes largely depend on what type within the area it is located. Estates of Semiluki distrinct tend to slope type of terrain. Turning estate complexes in the register of protected areas (RoPA) Russia will benefit the recreational potential of the area, improve the stability of the environment and will promote environmental education. On the territory of Semiluki district area of RoPA is not sufficient, it is appropriate to extend it to make the environmental status of the estates. Currently 2 of the estate area have the status of existing natural monuments (Cottage Bashkirtseva and Semidubravnoe tract), but even in their territory conservation mode is not guaranteed. One reason for this is that the locals do not know what the estate are protected areas. In field studies, it was noted that the majority of estates are in poor condition is not respected conservation mode, the composition of flora no different variety, many estates have poor transport availability and information security. The paper offers recommendations for improving estates and their involvement in environmental and recreational nature

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Application of the method of collocations to solve the boundary integral equation for the density of the double layer at a piecewise constant approximation is incorrect, since in this case the boundary condition for the vector of the magnetic field is not executed. Proposed in this paper, a discrete-field model does not contain the collocation points, and the boundary conditions are an integral manner. The proposed modification of the method of the double-layer magnetic charges is not necessary in the conduct of conditional partition, which greatly simplifies the process of algorithmization method.