DEPLATION CHARACTER OF FOREST MANAGMENT IN THE LEASED LAND OF THE IRBIT FORESTRY

Истощительное экстенсивное лесопользование на арендованном участке – актуальная проблема лесного хозяйства. Современная практика показывает, что лесопользователь, руководствуясь экономическими показателями с целью получения большей прибыли, не ведет заготовку в малопро- дуктивных насаждениях, а осваивает высокопродуктивные насаждения с высокими запасами на 1 га. Такая ситуация приводит к невыполнению мероприятий по воспроизводству лесов в полном объеме и к истощению лесов. Методы определения расчетных лесосек не отвечают принципам непрерывно- сти и неистощительности на лесных участках. Срок использования эксплуатационного фонда зачастую не соответствует срокам договора аренды. В документах лесного планирования необходимо приводить динамику заготовки древесины и изменения возрастной структуры насаждений на срок аренды. Фонд лесовосстановления превышает по площади ежегодный объем вырубок из-за освоения высокобонитет- ных насаждений. Один из способов для перехода к интенсивной модели лесопользования – это внесение изменений в организацию расчета лесопользования на арендованных лесных участках. The depletion of extensive forest use on a leased plot is an actual problem of forestry. Modern practice shows that the forest user, guided by economic indicators in order to obtain more profit, does not harvest in low-productive plantations, but develops highly productive plantations with high reserves per 1 ha. This situation leads to the failure to implement measures for the reproduction of forests in full and to the depletion of forests. The methods for determining the calculated cutting areas do not meet the principles of continuity and sustainability in forest areas. The term of use of the operating fund often does not correspond to the terms of the lease agreement. In the forest planning documents, it is necessary to give the dynamics of wood harvesting and changes in the age structure of plantings for the lease period. The reforestation fund exceeds the annual volume of deforestation by area due to the development of high-priority plantations. One of the ways to switch to an intensive model of forest management is to make changes to the organization of the calculation of forest use on the designated forest areas.

The recreational and economic role of the suburban landscaped territories in Voronezh

The applicability of the topic is conditioned by the increase the share of the recreational forests and the development of the urban agglomeration. The purpose of the study was to determine the recreational capacity of natural green areas, followed by an ecological and economic assessment. In the work, recreational and sanitary-hygienic assessments were carried out, the stages of digression, the classes of stability of plantings were determined, followed by an ecological and economic assessment of suburban green areas. The weighted average value of the ecological recreational capacity is determined. In plantations with a predominance of oak or pine in the existing types of forest growing conditions, the specific value of the ecological recreational capacity is the same, therefore, approaches to the development of these forests may be the same. To assess the ecological potential of plantings, the content of carbon, absorbed carbon dioxide, and oxygen released by them were calculated. The results of the calculations show that the maximum amount of C2 is observed in mixed stands with a predominance of oak, the minimum-in pure pine stands. Obtained results of the investigation let to realize the forest planning, taking into consideration the results of the eco-economic estimate.

The important role of multifunctional forests in society: a methodology for stands delimitation

Forest planning and management must be conceived in accordance with the circumstances and needs of the moment. Nowadays, the forest does not have a single and exclusive productive use but responds to multiple demands. The stand management method, with a broad approach, is has been recently well adapted to this type of multipurpose management. This study proposes a methodology for delimiting stands which led to manage different uses in forests in protected areas. The methodology consists of six phases: (i) create permanents units (ii) initial identification of forest typologies, (iii) image analysis, (iv) identification of tree types within the forest typology, (v) detailed inventory and (vi) formation of stands. An example is presented for the “Monte Paris” forest, located a few kilometers from Madrid, which combines protective, livestock and recreational use. For the protection use, pruning and thinning will be carried out, for the livestock use, supplementation, meadow sowing and enclosures, and for the recreational use, the design of an environmental center and five ecological trails are proposed. The organization in time and space of the activities planned in the stands allows a correct and satisfactory management of the multiple uses that occur in this forest.

Bringing the Forest Home: Lessons Learned during the COVID-19 Pandemic about E-Planning in Community Forestry Contexts

This paper examines “e-planning,” or the use of computer-based systems to conduct planning and decision-making, in the context of community forest management. E-planning is growing in the field of environmental planning, as it promises greater equity in terms of public participation. However, a lack of scholarly work exists on the applicability for forest planning. During the COVID-19 pandemic, county foresters and other natural resource professionals in Vermont turned to e-planning when safety restrictions limited their ability to engage in face-to-face efforts. This provided an opportunity to collect empirical data about the potential for e-planning to support the public engagement process in the context of forest planning. We provide an overview of e-planning theory and examine data from Vermont to explore the promise of e-planning for forest management. We make recommendations about the applicability of e-planning in the context of forest planning, and highlight areas for future research to investigate. Study Implications Public participation is an important component in the planning and management of public forestland. The use of e-planning, or the use of computer-based systems to conduct planning and decision-making, increased during the COVID-19 pandemic as a way to safely continue public participation efforts. Our paper suggests that e-planning may be a powerful tool for engaging both new and current stakeholders. However, we caution that there are challenges associated with e-planning, particularly issues related to technology and internet access. We encourage public land managers to consider whether e-planning is applicable to the communities they serve.

Simultaneous optimization of even flow and land and timber value in forest planning: a continuous approach

Background Forest management planning involves deciding which silvicultural treatment should be applied to each stand and at what time to best meet the objectives established for the forest. For this, many mathematical formulations have been proposed, both within the linear and non-linear programming frameworks, in the latter case generally considering integer variables in a combinatorial manner. We present a novel approach for planning the management of forests comprising single-species, even-aged stands, using a continuous, multi-objective formulation (considering economic and even flow) which can be solved with gradient-type methods. Results The continuous formulation has proved robust in forest with different structures and different number of stands. The results obtained show a clear advantage of the gradient-type methods over heuristics to solve the problems, both in terms of computational time (efficiency) and in the solution obtained (effectiveness). Their improvement increases drastically with the dimension of the problem (number of stands). Conclusions It is advisable to rigorously analyze the mathematical properties of the objective functions involved in forest management planning models. The continuous bi-objective model proposed in this paper works with smooth enough functions and can be efficiently solved by using gradient-type techniques. The advantages of the new methodology are summarized as: it does not require to set management prescriptions in advance, it avoids the division of the planning horizon into periods, and it provides better solutions than the traditional combinatorial formulations. Additionally, the graphical display of trade-off information allows an a posteriori articulation of preferences in an intuitive way, therefore being a very interesting tool for the decision-making process in forest planning.

Urban Forest Sustainability in Residential Areas in the City of Santo Domingo

Cities are territories vulnerable to climate change. An alternative to increase resilience and mitigate the effects of the climate context is urban forest planning to increase ecosystem services. This research constructed a forest cover sustainability index, based on 147 semi-structured interviews with residents of four residential areas of the city of Santo Domingo (Gazcue, Zona Colonial, Ciudad Nueva, and San Carlos), in which information was collected based on both benefit perception and tree management in their home and nearby public areas. The socioeconomic characteristics of the population and the information gathered from the measurements of the urban forest in both public and private areas of the city during the 2016–2019 period were considered, including these four residential areas, which established the ecosystem services provided by the urban forest. The results showed that Gazcue had a higher value in the forest cover sustainability index. The factors that influenced this result were: job stability, medium-high income, and property ownership. Likewise, the added value of the territory, whether in terms of tourism or the socioeconomic value of the population that inhabits it, is closely related to a greater attention to urban planning, prioritizing the conservation and landscape harmony that the arboreal component can provide. In conclusion, urban forest planning in cities should consider tree species, the design and structure of spatial arrangements, and a competent legal framework that can meet the challenges of territorial sustainability and contribute to the resilience and mitigation of climate change impacts.