Papers by romina sayahnia
سنجش از دور و GIS ایران, May 22, 2022
Natural Resources Forum, Jan 17, 2023
Urbanization and mass movement of the population from rural areas and small cities to megacities ... more Urbanization and mass movement of the population from rural areas and small cities to megacities have led to environmental, economic, and social problems in Iran. In dealing with these challenges, assessing resource and environmental carrying capacity (RECC) is considered an effective method to leverage space and capital to achieve sustainable development. This study aimed to rank the provincial RECC in Iran. Toward this purpose, environmental indices were generated from remotely sensed and statistical census data. Then, the provinces were scored in terms of environmental, economic, and infrastructural carrying capacities, and RECC using the mean variance analysis method. Results demonstrated that in most areas, there is no relationship between economic and infrastructural capacities and development. Statistically, a correlation coefficient of −0.53 between economic and environmental carrying capacities indicated excessive use of environmental capacities. Moreover, the spatial distribution pattern of environmental, economic, and infrastructural carrying capacity was entirely heterogeneous between the provinces; there was a northeast–southwest pattern in terms of infrastructural capacity and an economic pattern from north to south. The distribution pattern of RECC is most consistent with the environmental capacity, pointing at the high weight of the indicators of the RECC model. In conclusion, this research offers a new vision for policymakers and provides a theoretical and applicable framework for implementing sustainable strategies in land‐use planning. It is recommended that the RECC concept and tools can be used not only for planning but also for measuring the efficiency of spatial development programs and establishing land balances in the region.
Journal for Nature Conservation, Apr 1, 2023
Results in engineering, Dec 1, 2022
سنجش از دور و GIS ایران, Jul 1, 2020
سنجش از دور و GIS ایران, May 22, 2022
Journal of Space Science and Technology, Oct 1, 2014
Land
The dynamic and heterogeneity of the urban heat island (UHI) is the result of the interactions be... more The dynamic and heterogeneity of the urban heat island (UHI) is the result of the interactions between biotic, physical, social, and built components. Urban ecology as a transdisciplinary science can provide a context to understand the complex social–biophysical issues such as the thermal environment in cities. This study aimed at developing a theoretical framework to elucidate the interactions between the social–biophysical patterns and processes mediating UHI. To do it, we conducted a theoretical review to delineate UHI complexity using the concept of dynamic heterogeneity of pattern, process, and function in UHI phenomenon. Furthermore, a hypothetical heterogeneity spiral (i.e., driver-outcome spiral) related to the UHI was conceived as a model template. The adopted theoretical framework can provide a holistic vision of the UHI, contributing to a better understanding of UHI’s spatial variations in long-term studies. Through the developed framework, we can devise appropriate metho...
Journal of Landscape Ecology
Globally, urbanization changes land use/land cover (LULC) and alters ecosystem functions and serv... more Globally, urbanization changes land use/land cover (LULC) and alters ecosystem functions and services. Soil retention (SR) is a critical ecological service that is strongly related to LULC change. The topic of this study is assessment of LULC change on soil retention service (SRS) in a fragile seminatural-urbanized landscape of the Jajrood basin in Northern Tehran, Iran, from 2000 to 2020. To achieve the goal, the LULC maps and the other relevant datasets were imported into the Integrated Valuation of Ecosystem Services and Trade-offs tool (InVEST) using the Universal Soil Loss Equation (USLE). Calibration and validation were performed using Goodness-of-fit test for observational and modeled data. The results revealed that LULC change had both negative and positive effects on SR. The built-up area increased dramatically by about 133 percent, while the rangeland shrunk by approximately 5 % during the twenty-year, leading to an increase in soil erosion and reducing SR. On the other ha...
Ecological Complexity, 2022
Sustainable Cities and Society
Sustainable Cities and Society
Integrated Environmental Assessment and Management, 2018
It has become important in the fields of environmental impact assessment (EIA) and resilience ass... more It has become important in the fields of environmental impact assessment (EIA) and resilience assessment that both disciplines begin to be considered together as complementary approaches aimed at achieving the same goals. There is a great advantage to combining the EIA methodology with a synergetic concept such as resilience, and thereby contributing to a more insightful and effective EIA process. A comprehensive approach is vital for effective assessment and management of environmental impacts and to support better decision making with regard to different planned interventions and socioecological systems. In this paper, we advocate for a hybrid environmental assessment model that combines EIA and resilience assessment. This proposed assessment approach expands the capacity of EIA to evaluate and manage the uncertainties and unexpected outcomes associated with human and natural environmental impacts. Integr Environ Assess Manag 2018;14:567-570. © 2018 SETAC.
Iran has a diverse range of mammals. Climate change can alter the species' range, leading to ... more Iran has a diverse range of mammals. Climate change can alter the species' range, leading to expansion or contraction and affect the IUCN threatened species' distribution. We assessed the effects of climate change on the climatic niche and coverage of the protected areas for 16 threatened mammal species in Iran. The species’ presence-only occurrence records, four predictor variables, two future climate scenarios (Representative Concentration Pathways 2.6 and 8.5) and two time steps (current and 2070) were used to build species distribution models by applying the ensemble approach in BIOMOD2. Species' responses to climate change under current condition showed different results: 8 of the 16 species are likely to gain climatically suitable space, but six species will probably lose climate range by 2070. Persian fallow deer and marbled polecat respond positively to the RCP 2.6 but will experience a range reduction in the RCP 8.5. Coverage of the protected area network will i...
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Papers by romina sayahnia