Urban green infrastructure planning based on environmental performance of geospheric landscape change(Case Study: Kermanshah City)

This-research was conducted with the aim of planning urban-green-infrastructures based on landscape ecology principles(structure, function, change). For-this-purpose, land-use/land-cover maps for the years 2003,2013,2023 were prepared using satellite images and ENVI 5.3 software. Then, using the CA-Markov model, changes in the year 2033 were predicted in the TerrSet 18.3 software. Also, landscape metrics were analyzed at the class and landscape levels in the Fragstats v4.2 software, and spatial processes were identified using the Decision-Tree-Algorithm. Finally, by utilizing practical planning principles, strategies were presented to enhance the natural structure and promote environmental performance in the process of geospheric landscape change. Based-on-the-results, between 2003 and 2033, the expansion of construction areas, along with the process of spatial aggregation, has led to an increase in the area(CA) and cohesion of construction spots(COHESION) and a decrease in spatial fragmentation and complexity(decrease in IJI,ENN-MN,ED,PD,NP,LSI). In-contrast, green infrastructures such as vegetation-cover and wastelands have faced a significant decrease in spatial indices, indicating an increase in erosion processes, structural discontinuity, functional limitation and ultimately an adverse impact on the process integrity of the landscape. Also, the gradual decrease in PD,NP,SHDI,ED,LSI metrics and the increase in CONTAG at the landscape level indicate a decrease in diversity, expansion of construction and simplification of the landscape structure. Based-on-the-analytical-framework-of-the-research, by adjusting structural continuity, the environmental performance of multi-functional planning increases and green-gray infrastructure solutions perform better. Therefore, observing-the-principles-of "structural continuity", "multi-functional planning" and "green-gray integration", along with the principle of "social participation" in the process of identifying needs and acquiring landscape services, will be more effective; and finally, urban development plans will be implemented based on "green infrastructure network assessment", planning strategies, "stakeholder participation" and "implementation". In-this-way, in-order to promote natural structure, allocate environmental function and geospheric landscape change, it-becomes-possible to manage the structural durability and functional sustainability of urban green infrastructures.