The paper is devoted to solving logistics problems based on information technologies. Petri net-based modeling is proposed as a solution method. The paper describes solution of the problem of supply chain management based on the Petri net.

Main problem: Technogenic "metamorphosis" of vegetation near such large industrial facilities as Pavlodar is considered to be the result of various active chemical and mechanical factors provoked by economic activities associated with the influence of emissions from industrial companies. The effect of anthropogenic impacts on vegetation in all regions of Kazakhstan varies and is largely dependent on the economic development of the territory, but in any case, the end result of this impact is the change in the vegetation, causing violations of with structure, reduced vodorazdelnaya flora and productivity of communities. This, in turn, can cause infection of herbaceous plants with pathogenic fungi, which then carry with them: a decrease in the intensity of plant growth, a deterioration in their decorative qualities, a decrease in the survival of the biological species. Purpose: to study the types of fungi-pathogens of phytopathogenic diseases and to determine the degree of modification of the plant component, which is under intense negative technogenic influence from the Aksu Ferroalloy Plant (AFР). Мethods: For the experimental study, species of plants such as: Artemisia dracunculus L; Artemesia vulgaris L; Atriplex fera L; Atriplex patula L; Artemisia annua L were selected for the content of fungipathogens of phytopathogenic diseases. Results and their significance: This experimental study was aimed at the presence of fungi-pathogens of herbaceous plants as a result of human impact, occurring near the industrial zone "AFР". The composition of fungi-pathogens of herbaceous plants collected in this industrial zone was considered and studied. According to the results of an experimental laboratory study, phytopathogenic fungi of herbaceous plants belonging to 1 ordo, 1 familia, and 4 species were found.

In the implementation of social policy, the most common practice in foreign countries is the payment of a part of the cost of the service by the recipients of social services. However, this decision raises some doubts. After all, these services are for members of the public who are unable to take care of themselves and generally cannot earn a living. On the other hand, when the state bears the costs, there is a risk of overconsumption. The decision on the extent to which a beneficiary of a social care service should share in the costs of social services depends on a variety of factors: criteria for social justice in the country and perceptions of social justice (for example, public opinion about whether unpaid social care services should be provided to all or only the poor), from a group of people in need of social care (social care services for children from social risk groups, especially for people with severe disabilities, are usually free of charge), from the economic ability of the state to provide free social services, etc. The purpose is to study the positive foreign experience in the provision of social services in modern conditions. Determine the role of the state as the dominant body in the implementation of social policy. The study is based on the principles of a systematic approach. Also, when writing the article, the dialectical method of cognition, the methods of scientific generalization and classification, the method of comparative analysis were used. Systematization and generalization of foreign experience in the provision of social services, taking into account the definition of its main goals and objectives, show that the changes taking place in the field of social protection in developed countries over the past two decades already indicate that the model of organizing social assistance, based on the dominance of market relations, operates in many countries. Under the hierarchical model, the organization of social services is based on a vertical division of responsibility and state functions, and the state has a monopoly on providing social care services and funding state or non-state care institutions. However, in recent decades, social assistance services have already been purchased from market participants and funded not by the state, but by the person in need of social assistance. However, such a market is not pure, since the state is involved in both the purchase and pricing of the service.