Aesthetic experience in a forest can typically be associated with attractive forest scenery that gives people a sense of visual pleasure. Characterized as a visual product based on people’s reactions towards various combinations of landscape settings, features, and objects, this type of natural visual pleasure may benefit people’s well-being, promotes natural and cultural heritage preservation, and encourages the growth of the eco-tourism industry. While most research on forest aesthetics focuses on non-urban settings, this study examines aesthetics in the context of urban forests. This study aims to systematically review landscape aesthetic assessment studies to propose a model for urban forests. We conducted a systematic review of research articles published from 2014 to 2020 by using three research journal databases, Science Direct, Scopus, and MDPI. In total, 55 research articles were identified and qualified for review based on the screening requirements. An additional 26 research articles were also included by using the snowball method to provide better understanding and outcomes for the study. The results were organized into these categories: definitions, benefits, philosophies, approaches, and variables for the aesthetic quality assessment in urban forest areas. In addition, we also found that aesthetic quality in urban forests is highly influenced by visual composition, visual sense, and visual conditions, which have also been proven to be important parts of forest functions and values that could contribute towards the preservation of urban green spaces.

Visual aesthetic quality is the visual pleasure level that attracts people and makes them prefer certain areas. Visual aesthetic quality is valued and considered for urban forests but remains challenging. This could be due to a lack of understanding of visual aesthetic quality assessment variables based on visual aesthetic theories. This study supports an integrated conceptual framework based on the result of a systematic literature review study to describe and measure aesthetics that incorporates objective and subjective factors through urban forest visual character and urban forest visual quality. The results include defining and understanding a description of visual aesthetic factors and variables as well as a thorough explanation of visual aesthetic theories to comprehend how to assess the visual aesthetic quality of urban forests. This study agrees with and supports the visual aesthetic theoretical framework, and we believe that due to our shared evolutionary history, humans have a standard set of urban forest visual aesthetic features with preferences that change according to cultural and personal variances. Furthermore, this research provides a foundation of visual aesthetic variables of urban forests that will assist urban forest researchers, urban forest managers, and decision-makers in managing and protecting the visual aesthetics of urban forests.

Carrying capacity is paramount to recreation and tourism management, which depends on sustainability between resource protection and experience quality. Many studies have examined carrying capacity from several perspectives, but the various methods of assessing carrying capacity have not yet been reviewed. The purpose of this study is to assess the methods of carrying capacity, their trend, and the assessment of carrying capacity made by each method. From the three scientific repositories used in this research, 100 original research papers were included in the review process. A total of 24 methods were recorded. The normative approach and Cifuentes Arias’ method were found to be the two main methods of determining carrying capacity. From the assessment of carrying capacity and the origin of each method, two fundamentals of carrying capacity emerged, and their differences and limitations are discussed. In addition, the study found that the carrying capacity employed in tourism destinations was formulated by complex variables that may require political interventions to ensure their success. Most of the research reviewed here focuses on the social aspects of carrying capacity, thus leaving room for future research. This study should benefit academics, policymakers, and resource managers by comprehensively analyzing the methods, limitations, and directions of future research in carrying capacity studies.

Permanent forest reserves (PFR) in urban areas are an integral aspect of the urban forest concept and the basis of a city’s green infrastructure. The preservation of natural forests in urban areas has become a widely researched topic due to the environmental, social, and economic benefits provided by it. Although several studies have shown that visual aesthetics play a role in preserving natural forests in urban areas, visual aesthetic value is typically not prioritized in preservation plans since it varies based on the physical characteristics of natural forests in urban areas, making it difficult to measure universally. Therefore, this research aims to identify the suitable variables for assessing the visual aesthetic quality of permanent forest reserves within urban areas in Malaysia. This study selected two permanent forest reserves based on four criteria. Data were collected via participant-generated images taken along selected forest trails based on participant visual aesthetic preferences. Researchers and experts analyzed and classified the data according to content to identify suitable visual aesthetic quality variables. This research identified 14 suitable variables for assessing the visual aesthetics of PFRs in urban areas, with a dominant preference for information-processing theory variables. Mystery was the most present variable for the visual aesthetic quality assessment of PFRs. Furthermore, participants’ educational and emotional backgrounds, categorized as design, environmental, social, and technical, impacted their visual aesthetic preferences. Our findings serve as a foundation for assessing the visual aesthetic quality of natural forests within urban areas in Malaysia.

Permanent urban forest reserves are aesthetic assets within cities. Consequently, their aesthetic quality must be continuously preserved and visually assessed. Even though numerous studies have utilized multiple variables to characterize visual aesthetics, they have lacked information on the importance and weightage of each variable, making it very challenging to assess this. Therefore, this study aimed to determine the relative weightage of the visual aesthetic variables for permanent urban forest reserves in Malaysia. We used a converging approach assessment method to determine the ranked preferences for the visual aesthetic variables of permanent urban forest reserves by selecting multiple variables based on public preferences and expert survey assessments of these. In addition, we utilized the converging approach results as a guide for the analytic hierarchy process in order to determine the weights of the visual aesthetic variables. We identified 14 variables, derived from six main variables, as multiple visual aesthetic variables for permanent urban forest reserves based on the content of photos taken by 12 public participants. The expert survey confirmed the validity of the classification of the variables and the importance of their linear sequencing. It was revealed that the greatest weight normalization (W = 10) was achieved from the variables “openness with city view”, “uniqueness of water with natural elements”, and “openness with water view”, while the least weight normalization (W = 1) was obtained from the variables “legibility with natural path”, “uniqueness with man-made elements”, and “uniqueness with natural elements”. Our findings provide a foundation for assessing the visual aesthetic quality of permanent urban forest reserves.