The true economic value of ecosystem services may not be reflected in market transactions, because there is no real transaction for ecosystem services in the market. Therefore, it is important to evaluate the cost of time and travel to define the value people place on something in the absence of a market price. This study estimates the recreational value of Ghaleh Rudkhan forest park in the north of Iran using the individual travel cost method. This method is considered to be a substitute approach for the market. The data required were collected using questionnaires. Therefore, 271 questionnaires were randomly distributed between the visitors of the recreational site in 2016. In this study, a linear function is used to estimate the effects of explanatory variables including economic and social variables on the number of visits to estimate the recreational value of the forest park. Results showed that a consumer surplus of each person for their visit was 21500 Rials and the annual recreational value of the park was 78390595 Rials per ha. Furthermore, the variables such as travel expenses, income, distance, family size and visitor’s age are effective factors in the recreational use of the park. The results of this study can improve the quality of environmental services of the Ghaleh Rudkhan forest park and could expand the variety of services that they could supply based on the demand of the people.

The issues of forestry and the economic assessment of ecosystem services of forests, in the example of the national park “Burabay” in Kazakhstan, located in the northern part of the country, are investigated in this study. The relevance of forest ecosystem services, such as carbon fixation, oxygen emission, soil conservation from erosion and precipitation redistribution, are important environmental factors that contribute to the conservation of natural capital. Studies by domestic and international scientists show that the value of ecosystem services of forests is much higher than the cost of wood and its material products. Consequently, the ecosystem services of forests should be valued in monetary terms and considered in the context of the national wealth of the country. The main purpose of this research is to establish the value of non-market forest products while considering the prevailing natural and socio-economic conditions. The methods of the ecosystem approach for assessing the above ecosystem services of forests in value terms were implemented, and the real value of the multifunctional value of forests has been revealed. The results obtained can be used in planning measures to improve the sustainability of forests, ecotourism organizations and management decision-making.

Forests are complex ecosystems that require integrated management to balance economic, social, and environmental dimensions. Conflicting objectives among stakeholders make optimal decision-making particularly challenging. This study seeks to balance the economic gains of forest harvesting with the goals of environmental conservation, with a focus on the Shafarood forest in Northern Iran. We applied multi-objective optimization and game theory to maximize the net present value (NPV) of forest harvesting while enhancing carbon sequestration. The research utilized data on stumpage prices, harvesting costs, tree density, volume per ha, growth rates, interest rates, carbon sequestration, and labour costs. Applying the epsilon-constraint method, we derived Pareto optimal solutions for a bi-objective model, and game theory was applied to negotiate between economic and environmental stakeholders. In the fifth round of bargaining, a Nash equilibrium was achieved between the two players. At this equilibrium point, the economic player achieved NPV from forest harvesting of 9001.884 (IRR 10,000/ha) and amount of carbon sequestration of 159.9383 tons/ha. Meanwhile, the environmental player achieved NPV from forest harvesting of 7861.248 (IRR 10,000/ha), along with a carbon sequestration of 159.9731 tons/ha. Results indicate significant trade-offs but reveal potential gains for both economic and environmental goals. These findings provide a robust framework for sustainable forest management and offer practical tools to support informed decision-making for diverse stakeholders.