Jahangir Feghhi

• Professor
• Professor at University of Tehran

Thesis (doctoral)--Eidgenössische Technische Hochschule Zürich, 1997.

The principle objective of this research was to design conceptual data model for Hyrcanian forest. The data model is based on E-R diagram as useful tool for designing the data used in data model. As a result a forest conceptual data model describes system elements and their relationships in Hyrcanian forest unit. It can be used as a primary core of...

Sustainable forest management is known as the most effective type of forest management. This mode of management is aimed at enabling sustainable and comprehensive development in forest-related sectors. Practicing sustainable management in forests requires powerful tools in order to ensure achieving objectives of forest management and, at the same t...

Management of the forest resources and related activities has significant effects on the environment. Applying the environmental impact assessment (EIA) provides a basis for improving forest management plans. However, in the developing countries such as Iran, there have been so far no serious endeavors and research to undertake the EIA of the v...

The purpose of this article is Artificial Neural Network (ANN) modeling using ecological and associated factors with forest degradation to predict the degradation of ecosystem, thereby enabling us to assess the environmental impacts of forest projects as an Environmental Decision Support System (EDSS). Results of the Multi-Layer Feed-Forward Networ...

The choice of temporal resolution has high importance in ecological modeling, which can greatly affect the identification of the main drivers of an organism's distribution, considering the spatiotemporal dynamism of environmental predictors as well as organisms’ abundance. The present study aimed to identify the spatiotemporal distribution patterns...

Introduction: Recognizing temporal trends of fluctuations in fish stocks and using them to predict population changes in the future is one of the practical tools in fisheries stock management. The Caspian Kutum (Rutilus frisii) is the most important bony fish species in the southern Caspian Sea and has high conservation and commercial value. Howeve...

The present study aimed to assess the performance of generalized additive (GLM) and random forest (RF) models in predicting Caspian kutum (Rutilus kutum) catch distribution. Kutum catch per unit of effort (CPUE) data was used as the response variable, and remotely-sensed data of five environmental parameters were used as model predictors, including...

We address two main challenges facing the implementation of sustainable forest management (SFM) in the Hyrcanian forest of Iran: inconsistent forest policy and the use of outdated science and techniques. We propose the Sustainable Hyrcanian Forest Management Model (SHFMM) as the best currently available solution to achieve improved management of th...

The distribution of Caspian Kutum, Rutilus kutum, an economically important fish species with a limited understanding of its ecology, was investigated along the southern Caspian Sea coast to identify the environmental drivers of its occurrence. The environmental predictors including sea surface temperature, chlorophyll-a concentration, particulate...

Tourism development in tourism-friendly areas is now one of the ways to reduce poverty, migration and social and economic problems. Ecotourism occupies a special place among the various types of tourism and has grown rapidly over the past two decades. In this study, the recreational potential of the Bamoo National Park and Tang-e-Bostanak (Behesh -...

Forests and the environment play important role in providing income, food, energy, medicines and genetic resources, and a variety of essential materials for the well-being and living conditions of the people and the preservation of culture. In this research, an attempt has been made to elucidate the functions of forests and the environment in Iran...

Forests and the environment play important role in providing income, food, energy, medicines and genetic resources, and a variety of essential materials for the well-being and living conditions of the people and the preservation of culture. In this research, an attempt has been made to elucidate the functions of forests and the environment in Iran...

Natural treefall gaps have a substantial role in maintaining soil and plant diversity in old-growth forests. However, the amount of information on the effects of gaps on the recovery of physical and chemical properties of compacted soils is scarce. We tested the hypothesis that natural treefall gaps accelerate the restoration of compacted soil by e...

This study identifies key performance indicators for monitoring the sustainability of forest functions in the northern forests of Iran. This process was conducted in two phases through the Delphi method, and Fuzzy Cognitive Mapping (FCM). The Delphi method classified indicators according to two properties, importance and measurability. These were u...

The importance and role of vegetation on the ecological structure and urban environment is well known. The general theme of this research was maintaining, equipping, and improving the area for recreational use, connecting ecological urban forest network, and maintaining green belt continuity of Tehran for limiting the urban sprawl. At first, we sur...

Primary production is the most important functional feature of terrestrial and aquatic ecosystems affecting many processes. In this study, we integrated logistic regression and Markov chain to predict chlorophyll-a (chl-a) concentration as an index of primary production in the Caspian Sea. We categorized the continuous variable, chl-a, using quanti...

Various engineering measures, such as mulching, have been applied on decommissioned skid trails to suppress the adverse effects of overland flow and flood hazards. However, very little research has been done on the effects of such treatments on soil recovery. The aim of this study is to determine the effectiveness of different leaf litter levels on...

Abstract The northern mountains of Tehran are amongst the most valuable natural ecosystems in Iran, which have been destroyed in recent decades due to improper use of land and land-use changes. Therefore, studies on the land-use changes via spatial occurrence probability maps are necessary to deal with this phenomenon. In the present study land use...

This research was carried out for investigating the effect of environmental factors on plant types in Arasbaran forests. To do so, for considering of the different conditions, sampling was carried out based on the landform units, and the size of a squared sample plots, 400 m2 was determined by the minimum surface area method. According to the landf...

It is necessary to evaluate sustainable spatial allocation of afforestation. For this purpose, this study was conducted in the Kan watershed of Tehran province to assess the suitability of land for afforestation. First, suitable tree species were chosen based on land characteristics of study area and purpose of restoration. Then, the ecological dem...

The aim of this study was to provide a multi-factor ecological power model based on the ecological factors of hydrological response units in order to assess the ecological potential of different uses in the Zailakirood Basin, northern Iran. First, by employing ArcSWAT, 608 units of hydrologic responses in 39197 independent polygons were found in th...

The use of land without considering landscape topography and climate of the region, can lead to disastrous consequences, such as erosion, desertification and environmental degradation. The present study aimed to investigate the landscape spatial pattern changes using ecological metrics in Chaharmahal Bakhtiari province between 1997 and 2011. After...

In this research, the impacts of forest operation and road construction on runoff and sediment yield were investigated in Zailakirood Basin. As there was only one hydrometric station and sediment measurement at the outlet of the basin, estimation of runoff and sediment from different parts of the Basin was not possible which limits our understandin...

Yellowfin tuna, Thunnus albacares, are the most important ecological and economic fishes in the Persian Gulf. In recent decades, their populations have faced overfishing, environmental problems and climate change. In this study, using some environmental variables affecting the habitat of tuna fish, i.e. sea surface temperature at night and day, ref...

The Paliurus spina- christi species grow naturally in three different vegetation regions of Iran (Northern forests, Arsbaran and Zagros forests). But so far no research has been carried out on the sites of this species. Therefore, present study was conducted to investigate the effect of environmental factors on distribution of ecological groups in...

Purpose Following ground-based skidding operations, understory vegetation and litter layer are commonly damaged or displaced by the movement of machines and timber on the machine operating trails, thus leaving the area vulnerable to increased runoff flow and sediment yield. One of the interim options available to suppress runoff and soil loss is th...

A list of criteria that effected on forest fire risk, based on literature was designed and then Delphi questionnaire was performed for expert evaluation. The results were shown that after analysis of the existing literature in combination with the fire regime of the study area, 5 criteria and 17 sub-criteria were selected. According to these criter...

Climatic conditions has an important factor in regarding tourism planning. Tourists are looking for a favorable climates (i.e. comfort climate) where people feel neither dissatisfied of climatic discomfort. The most suitable time to have recreation is when climatic indicators reach the levels of comforts and satisfactions of the human beings. In th...

Background and objectives: In preventing fire and reducing their effects, forest fire management is important. The purpose of this study was to provide a map of fire hazard potential and determine the effective factors on forest fires using GIS and artificial neural network for the cities of Ali-Abad, Ramayan, Azadshahr, Minoodasht and Kalaleh in G...

In recent Forest planning in northern Iran, inventory by using of plots with 0.1 ha in area to analysis quantity characteristics of forest stands had performed. Results from this step are very important to other parts of forest planning. It is time consuming that we get results from analysis of raw forms in manual hardworking, so using GIS for gett...

According to the importance of regional differences in the country’s strategic plans and also direct role of urban forests in sustainable development of cities, this research at identifying the regional differences from the perspective of urban forestry indicators. For this purpose, initially, six indicators have been identified and their related d...

Compacted soil has lower water infiltration and hydraulic conductivity, which contributes to increased runoff and erosion on slopes. The aim of the present study was to assess runoff and sediment on three skidding trail longitudinal gradients (15%, 25%, and 35%) and different levels of machine traffic (low, medium, and high), over a two-year period...

Rhizophora mucronata forest stands are among the unique mangrove association in the coastline of southern Iran. These stands along with Avicennia marina constitute the only mixed mangrove forest in Sirik site. Despite the long-standing presence of Rhizophora mucronata among mangrove forests of Iran, few studies have been done about its habitat cond...

Background and objectives: The quantitative description of forest structure is considered as one of the most useful working tools in modern forest management and in order to manage these ecosystems optimally, obtaining accurate insight of their structures is necessary. This study aims at evaluating the optimal area of the sample plot for correct an...

The importance and role of vegetation on the ecological structure of urban environment is wellknown. Forest plantations Park is a part of urban forests. These plantations have been reported to benefits of a forest as well as social benefits, and thus used to meet the different needs of outdoor recreation users. In this research the area was allocat...

The aim of this research was to evaluate and select of appropriate indicators for different zones of Baghe shadi region where it have six different zones (restricted zone, protected zone, restored zone, inhibition zone, recreational zone and other uses zone). To do so, first top-down approach and Likert scale questionnaire was used for voting from...

Sustainable forest management initiatives in Caspian forests of Iran require that cost-benefit and environmental analysis be identified to help maintain timber stand quality during logging operations. This study was done with the aim of costs and gross revenue computation obtained from current logging (Net present value) was made. This study was ca...

Many efforts have been made to develop needed technology for knowledge of management organizations, environment policy making and finding solution for complex problems. The efforts come to end by introduction of environmental decision support systems. The aim of this paper is the study of concepts, studies, system design and challenges from past to...

The aim of this study is to solve the forest park site selection problem using a Fuzzy analytic hierarchy process (FAHP) framework in the Galegol Basin, Lorestan province, Iran. The Delphi screening method was used to select the most relevant criteria and sub-criteria to the forest park problem. Using the FAHP weighting approach, the weight of each...

Newadayes, preventing and/or mitigating unfavorable consequences of increasing vulnerability of forest ecosystems is became as one of the most important goals of natural resources managers in all over the world. Achieving this goal requires use of methods, which can provide scientific and on-time decision making for managers. Among these methods, D...

One of the most important information in urban forestry is acquaintance of urban landscape’s area or proportion. Nowadays, in several countries variable methods are used to achieve this aim. Since there is not any complete method to study urban forest’s status in IRAN, it is impossible to exert authentic management for these resources. Hence, in th...

Along the coastal strip of tropical and subtropical regions, mangrove forests extend as one of the most productive coastal ecosystems. Iran is considered one of the most western coastal habitats of these communities in Asia. Unfortunately, in recent years, despite their economic and ecological importance, these forests have been threatened mainly d...

The importance of Green spaces in urban areas, especially in large industrial cities is an index of social development, which increases the quality of life. Thus distribution of urban green space in a city is very important .This research is more perfect than the study of green space areas because it focuses on distribution. In this research first...

Forest fires frequently cause disturbances in vegetation cover worldwide. The aim of this study was to 1) assess the effects of spatial indicators on forest fire ignition and 2) to map the susceptibility to forest fires using Analectic Hierarchical Process (AHP) and Geographical Information System (GIS) in a portion of southern Zagros forests in Kh...

It has been widely recognised that the participation of different groups of people is crucial to urban forest management. This paper aimed to focus on the motivating factors and conditions that foster participation in urban forest management. Also, the main constraints which limit participation were explored. Therefore, a survey using a researcher-...

The quantitative description of forest structure can be regarded as one of the most usable working tools in modern forest management.The study aims at analyzing the stand structure in unlogged beech forests using nearest neighbor indices. Data collection was done in compartment 319 with an area about 48 ha in Educational and Experimental Forests of...

Abstract Today, the destruction of forests has increased with the overgrazing of livestock and so with regard to the critical role of forest, measures must be programmed to conserve, rehabilitate and manage this divine gift. The investigation on the damages of grazing on forest indicate that grazing can significantly affect ecosystem Sustainabi...

One of the indicators of management and sustainability control of forest resources is the definition deforestation and degradation types. These factors hazard quantitative and qualitative of the Iranian forests. In this study with integrated approach, different forms of forest degradation identified in the forest areas with a reviews of library res...

Nowadays, preventing and/or mitigating unfavorable consequences of increasing vulnerability of forest ecosystems has became one of the most important goals of natural resources managers all over the world. Achieving this goal requires use of methods which can provide scientific and on time decision making for managers. Among these methods, Fuzzy An...

Urban growth has been an important social and economic phenomenon that affects severely on function of ecological systems. Hence, understanding and analyzing the spatial patterns of urban growth using remote sensing, GIS and landscape metrics can play a fundamental role in urban land use management and planning and subsequently reduction in environ...

Generally, planning and prioritizing managerial operations and also providing appropriate tools for mitigating destructive consequences of stresses and disturbances affecting on forest ecosystems requires classification and prioritizing of these negative factors. Among different approaches for ranking and prioritizing, Delphi method due to its cont...

Due to the different factors and complexity of their effects on healthy and sustainability of urban forest, this study has been tried by means of determining effective factors in ecosystem, and dividing Sorkhe Hesar man made forest park to homogeneous units according to natural factors (slope, aspect, high, soil depth, mixture and pure planting sys...

Abstract: Forests are as renewable natural resources and because of its abundant environmental values have special status. Given the importance of forests as one of the most important sources of development in the country, several measures such as forest management plans are programmed in Iran. The Review of forest management plans in Iran indicate...

Sustainability analysis of urban complex systems, as an interdisciplinary study, necessitates integrative modeling approaches for analyzing relationships between land parameters and landscape patterns. The present paper emphasizes applicability of dynamic and scenario-based investigation of urban environments for understanding the interactions betw...

Understanding, analysis, monitoring and modeling of urban growth evolution as a major driving force of land use/land cover transformation, especially in developing countries, is of great importance for land managers in the process of sustainable development. Using spatial predictive models and change detection techniques can provide an additional l...

Sustainability analysis of urban complex systems, as an interdisciplinary study, necessitates integrative modeling approaches for analyzing relationships between land parameters and landscape patterns. The present paper emphasizes applicability of dynamic and scenario-based investigation of urban environments for understanding the interactions betw...

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Environmental Impact Assessment (EIA) has been recognized as a basic tool for environmental management and sustainable development. But when quantitative entities are needed for decision-making or where the environmental cumulative effects are concerned, the uncertainty and inconsistency between the decision-makers in determining development progra...

Landscape ecology as a new interdisciplinary science, concepts, theories and methods provides for evaluation and management of land. Quantification of landscape patterns has key role in the interpretation and modeling of spatial and chronically variation of land uses. This study carried out in the Zagros vegetative region in the west of Iran to qua...

We examined the local community incentive programs to improve traditional forest management in three forested villages in Baneh city, Kurdistan province in the northern Zagros forests of western Iran. Zagros forests cover 6.07 million ha and support rich plant and animal diversity. Changes in local community social and economic systems and the inef...

The ecological relationship between trees is important in the sustainable management of forests. Studying this relationship in spatial ecology, different indices are applied that are based on distance to nearest neighbor. The aim of this research was introduction of important indices based on nearest neighbor analysis and their application in the i...

Abstract Deforestation in the past decades has risen. So, the proper development of human activities in forests requires the environmental limitations to be considered during forests management process. One of the appropriate measures is the determination of ecological vulnerability. In the present study, Patom District of Kheyrud Forest was cl...

To correct management of forest ecosystems, having of enough information in relate to structure of trees species is necessary. In this study, the structure of trees specie in Fagus, Fagus-Carpinus, Carpinus-Fagus and Carpinus-Quercus types investigated and compared in Hyrcanian forest. The data used in this study collected from 239 plots with area...

Wildfires destroy the vegetation and pose numerous environmental and social hazards. Climatic factors are among those which affect the occurrence and expansion of wildfire. determining all the climatic factors that control the happening and expansion of fire in nature requires enormous funds, time and energy which should be devoted to collection an...

Regeneration patches have key role in forest stand dynamic, new findings about the structural properties of patches can be useful in forest ecosystem management. We quantified the spatial and structural pattern of regeneration patches in old growth beech stands in a Gorazbon forest in the northern Iran. 461 patches were measured that covered 8.3% o...

For achieving appropriate knowledge on biodiversity with a minimum cost and time to obtain a sustainable forest management, some applicable indices are needed. This study was attempted to describe some spatial structure indices as well as to quantify beech and oak spatial structures in Gorazbon district of Kheirud forest. The indices of uniform ang...

Elm (Ulmus glabra Hudson) is one of the most valuable species which distribute all over the Caspian forests. Nowadays, elm is considered an endangered species due to intensive human activities and outbreak of Dutch elm disease over the last few decades. To suitable management of elm, there is need to have indices which describe; current structure a...

Geographic Information System (GIS) is one of the most important tools to prepare forest management plan and, in general, as a tool for management, sustainable logging and future planning based on the derived statistical data from forested regions. The purpose of this study is a spatial simulation of trees in forest to have in hand an example of an...

Landscape and land uses are rapidly changing in different areas due to urbanization growing and population increasing. There are several economic, social and environmental consequences for this phenomenon. Urbanization expanding and increasing of construction by human cause underlying changes in ecology and function of landscape structure and spati...

a b s t r a c t Tree fall gaps caused by natural disturbances are a major source of heterogeneity in intact forests. Bird species are known as ecological indicators, reflecting landscape level changes. Yet, the role of landscape context in bird species abundance within small gaps is not fully addressed. We examined the difference between avian rich...

Forest planning is accomplished by a decision-making process that is spatially and temporally hierarchical. Main decisions at the strategic and landscape levels are about the determination of forest functions and forest classification for these purposes. This could be archived by ecological evaluation. Developing of specific model for ecological ca...

One types of tourism that is the most coordinated with sustainable development, is ecotourism. The main willingness of ecotourism is based on the nature and its attractiveness. Considering that pay attention to nature and its attractiveness is both essential in designing for development planning and landscaping or organizing the landscape for conse...

The Hyrcanian (Caspian) forest in northern Iran has a richness of biological diversity, with endemic and endangered species, and a diverse range of economic and social conditions. With a focus on low impact timber extraction and small scale tree harvesting, the proportion of mule logging has recently increased. The objective of this study is to ass...

In the present study, the effective factors on distribution of coppice and high stands in traditional forest management of central Zagros in two customary properties including Sarableh town and Cheshmeh Khazaneh village were investigated. In order to obtain this goal, forest types based on canopy cover, diameter, high, origin and understory farmla...