yadollah Bostan; Ahmad Fatahi Ardakani; Masoud Fehresti Sani; Majid Sadeghinia; Mohammad Arab
Volume 27, Issue 1 , April 2020, , Pages 177-191
Abstract
In the 3 last decades, there were efforts to consider the economic value of ecosystems in the framework of virtual markets, in order to have a better recognition and protection toward them. Therefore, the authors of current study tried to use conditional valuation and mutual 2-dimensional technique, ...
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In the 3 last decades, there were efforts to consider the economic value of ecosystems in the framework of virtual markets, in order to have a better recognition and protection toward them. Therefore, the authors of current study tried to use conditional valuation and mutual 2-dimensional technique, since they have a good knowledge about the valuable services of forest ecosystem of Sheikh mousa in Babol city. 157 questionnaires were distributed among the population (eastern banpey region in Babol) in 2017-2018 period. The factors effective on propensity to pay to stakeholders based on Protective valuation scheme had been investigated. In addition, sampling was performed according to Michel & Carson’s method. The current study is quantitative and results were analyzed in maple 18, shazam 11 & excel 2016 software. The consistency and reliability of information resulted from logit pattern showed that proposed price, age, not being the head of family, visiting the area and environmental ethics are the main effective factors on the propensity to payment for protecting the forest ecosystem of sheikh mousa region. In addition, the annual propensity toward individual payment is equal to 7892.92 Rials (1.87 dollars), and the overall protective value of mentioned ecosystem is more than 2276 million Rials (66096 dollars). In addition, the minimum voluntary investment (available capital) to protect the forest ecosystem of sheikh mousa, from the preference perspective of stakeholders of related society is around 1289 million Rials. According to the obtained results, it can be argued that protecting from this forest ecosystem because of its valuable services from stakeholders perspective is very important. Therefore it is suggested that by establishment of NGO and workshops in the city by corresponding authorities, the environmental ethics and tendencies of people toward protection of such ecosystem get changed. In addition, performing more studies about other applications and services of these type of ecosystems is proposed, in order to have a higher and better understanding in public community and responsible managers about these ecosystems.
Esmaeil Silakhori; Hamid Niknahad gharmakher; Abdolbaset Aghtabye
Volume 25, Issue 1 , April 2018, , Pages 63-77
Abstract
In order to develop a clear and realistic desertification control plan, identifying and evaluation of processes as well as causes and current status of desertification are the basic needs of arid zones. In present study, the desertification assessment of Incheh – broun area in ...
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In order to develop a clear and realistic desertification control plan, identifying and evaluation of processes as well as causes and current status of desertification are the basic needs of arid zones. In present study, the desertification assessment of Incheh – broun area in Golestan province was performed using three indicators of ESAs model (soil quality, vegetation cover quality and climate quality). Therefore, the map of each indicator was obtained from the geometric mean of its layers. From the geometric mean of these indicators and by classification of obtained map, the desertification sensitivity map of the study area (ESAI) was obtained. Finally, the study area was classified in three classes [no sensitive (7.64%), fragile (14.41%) and critical (77.95%)]. The results demonstrated that poor drainage, heavy texture of soil, poor vegetation cover, besides climatic factor are the most important factors of desertification in the study area causing desert conditions. With regard to the results and in order to prevent the advance of desertification processes, the biological and mechanical land improvement techniques such as plantation of species resistant to heavy and saline soils and construction of drainage in water logging lands are recommended.
Mohsen Tavakoli; Shima Nourinejad; Mohammad Rostaminia
Volume 24, Issue 4 , January 2018, , Pages 853-869
Abstract
Desertification is equivalent to land degradation causing reduced living and non-living organisms, especially in arid and semi arid ecosystems due to natural, human, and climate change factors. The present study was aimed to assess ICD and ESAs desertification models in Mehran plain, Ilam. Therefore ...
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Desertification is equivalent to land degradation causing reduced living and non-living organisms, especially in arid and semi arid ecosystems due to natural, human, and climate change factors. The present study was aimed to assess ICD and ESAs desertification models in Mehran plain, Ilam. Therefore , different desertification criteria and indices of both models were collected according to area characteristics and field observation in seven specified land units. In this research, four different indices including vegetation cover, soil characteristics, water and climate as the most important criteria in this region were selected and used for desertification intensity zoning. The results indicated that ICD method classified desertification intensity into two classes including moderate class (64.92%) and high class (35.07%) and ESAs method classified desertification intensities in 4 classes including fragile A (5.55%), fragile B (14.65%), fragile C (42.5%) and critical A (37.2%). According to the results, due to high adaptation to current condition of the area, flexibility in selecting the criteria and indices, application of GIS and using geometric average of indices for desertification intensity classification, ESAs method could be recommended as a suitable method for this region and similar regions.