Volume 76 (2023)
Volume 75 (2022)
Volume 74 (2021)
Volume 73 (2020)
Volume 72 (2019)
Volume 70 (2017)
Volume 69 (2016)
Volume 68 (2015)
Volume 67 (2014)
Volume 66 (2013)
Volume 65 (2012)
Volume 63 (2010)
Volume 62 (2009)
Effect of climate change on the Ecological Niches of the climate Of Bromus tomentellus Boiss using Maxent in Isfahan province

azadeh bazrmanesh; Mostafa Tarkesh; Hossein Bashari; Saeid Poormanafi

Volume 71, Issue 4 , March 2019, Pages 857-867


  In order to model the potential habitat of Bromus tomentellus Boiss and study the effect of climate change on the habitat of this species in Isfahan province method of modeling maximum entropy (MAXENT) were used. The species event data were determined by random categorization method using field visits ...  Read More

Spatial prediction of shallow landslides using statistical and machine learning models (case study: Sarkhoon watershed)

Zahra Barati; Ebrahim Omidvar; Ataollah Shirzadi

Volume 71, Issue 4 , March 2019, Pages 869-884


  Landslide susceptibility mapping is considered as the first important step in landslide risk assessment. The main purpose of this study is to compare the performance of a machine learning algorithm (a logistic model tree), and a statistical model (a logistic regression), for landslide susceptibility ...  Read More

Digital soil mapping Using Random Forests and Land Suitability Evaluation for Abyek Region, Qazvin Province

Seyyed Erfan Khamoshi; Fereydoon Sarmadian; Ali Keshavarzi

Volume 71, Issue 4 , March 2019, Pages 885-899


  Soil is known as a dynamic media so it easily degrade with inapplicable usage so with increasing in degradation of this limited source, the world’s food safety would be in danger. Thus, applicable and sustainable usage of agricultural lands are become an essential and inevitable agenda. Therefore, ...  Read More

The Effect of Vegetation Cover on Microclimate in Dry land Ecosystem (Case Study: Sistan Plain)

Farhad Zolfaghari; Hossein Azarnivand; Hassan Khosravi; Gholamreza Zehtabian; Shahram Khalighi Sigaroodi

Volume 71, Issue 4 , March 2019, Pages 901-914


  Any Changes in a dry land surface ecosystem will be affected by the climate near the ground or microclimate in the vertical plane. In recent decades' wetland drying cause to reduced vegetation significantly. Assessing Zabol synoptic station statistics shown an increased temperature of this place. It ...  Read More

Modeling of Geometrical characteristics of gully erosion (Case study: Ilam province)

ghobad rostamizad; ali salageghe; ali akbar nazari samani; jamal ghodoosi

Volume 71, Issue 4 , March 2019, Pages 915-928


  One of the types of water erosion and land degradation which causes imbalance, is the gully erosion phenomenon. Land degradation, a broken ecological balance of the land and landscape and risk of falling at biological resources in these areas, the study of the gully, is inevitable and necessary especially ...  Read More

Effects of Biologically improvement treatments on vegetation performance (Case study: Zalo Ab Abdanan rangelands)

elham rezaei; somayeh dehdari

Volume 71, Issue 4 , March 2019, Pages 929-938


  Current study is investigate the effects of range improvement treatments on vegetation performance in Zaloo-Ab rangeland that is 10 Kilometers far from west south of Abdanan County in Ilam Province. Vegetation sampling was done randomly in every control and corrective operation sites in length of three ...  Read More

Studying the effectiveness of some non-oil mulches on sand dunes fixation

Salman Zare; Mohammad Jafari; Hassan Ahmadi; Hasan Rouhipour; Reza Khalil Arjomandi

Volume 71, Issue 4 , March 2019, Pages 939-948


  In this regard, the present study aimed to evaluate the performance of some of the non-oil mulch to stabilize sand dunes in the Kashan's Rig-boland desert. monthly surveys are conducted in the desert areas. To evaluate the effect of mulch on stabilizing the sand dunes, the effect stabilization index ...  Read More

Evaluation of populations of Elymus hispidus var. hispidus ecotypes in different ecological zones of Kurdistan province

Salahudin Zahedi

Volume 71, Issue 4 , March 2019, Pages 949-962


  The evaluation of Elymus hispidus var. hispidus ecotypes in different ecological zones of Kurdistan province was carried out at Baharestan Agricultural Research Station in order to nomination of the best ecotypes in terms of adaptability and establishment. The experiment started in 2010 and continued ...  Read More

Multi scale Analysis of Geomorphologic Instantaneous Unit Hydrograph (GIUH)

Mahdieh Sanjari

Volume 71, Issue 4 , March 2019, Pages 936-971


  Given the increasing trend of application of Geographic Information System (GIS) for natural resources study in one hand and complication of biological, geomorphological, hydrological and ecosystem mechanisms on the other hand, scale is an overlooked but very impressive and flourishing concept. As for ...  Read More

Quantitative analysis of vegetation feedback on the occurrence of dust in arid ecosystems (Case study: Isfahan province)

tayebeh sohrabi; Abbas Ali Vali; Abolfazl Ranjbar Fordoei; sayed Hojat Mousavi

Volume 71, Issue 4 , March 2019, Pages 973-985


  Dust event is one of the secondary complications of ecosystem in arid and semi-arid areas. This phenomenon results from system feedback against multiple factors of pressure and destruction. One of the most important foundations of ecosystems is vegetation. Because the vegetation factor reflects many ...  Read More

Investigation of influence biological the operation on function of rangeland (Case study: Niatak range, Sistan)

Morteza Saberi; vahid karimian

Volume 71, Issue 4 , March 2019, Pages 987-996


  The studies of functional features of patches of rangelands will help effectively in the detection the healthiness of arid and semi-arid rangelands, the improvement of soil conditions as well as the recognition of the effects of managerial and natural changes of rangelands. In order to investigate the ...  Read More

Evaluation of the effect of forest cover on quantitative and qualitative runoff parameters in Chitgar Forest Park Watershed, Tehran

Azam Tabarzadi; Meghdad Jourgholami; Alireza Moghaddam Nia; Baris Majnounian Garagiz; Pedram Attarod

Volume 71, Issue 4 , March 2019, Pages 997-1011


  Many environmental challenges such as stormwater runoff and flood risk, chemical and particulate pollution of urban air, soil and water, the urban heat island, and summer heat waves are exacerbated in urban environments. Runoff from heavy rainfall in many parts of the world lead to erosion, sedimentation ...  Read More

Institutional Analysis of Drought Management in the Ghareh Chay Watershed in Saveh County: An Application of Social Network Analysis

Amir Alambeigi; Mohsen Malekli

Volume 71, Issue 4 , March 2019, Pages 1013-1027


  The phenomenon of climate change, especially the drought in Iran during the past decades are increasingly on the rise. In this respect the role of institutions and institutional entrepreneurship in areas that suffer from drought are can be used as the perfect solution for the management of drought. The ...  Read More

Utilizing LANDSAT imagery to monitor land-use change and land grabbing to evaluate Human drivers factors in Babol kenar sub-basin, northern Iran.

Mohammad Amozad mahdiraji; gholamali jalali; abbas Alipour; mohammad hossein Papeli Yazdi

Volume 71, Issue 4 , March 2019, Pages 1029-1041


  Iranian northern forests have been damaged due to easy accessible, population increase and ets. with human-made in recent decades. Evaluating land-use changes is one of the main method to monitor and manage natural resources. The present study was conducted in Babolakrood sub-basin, Mazandaran province, ...  Read More

Source fingerprinting of aeolian sediments using Monte-Carlo simulation method

Hamid Gholami; Mohammad Reza Mehrdadi; Mehdi Najafi; Mehdi Biniaz

Volume 71, Issue 4 , March 2019, Pages 1043-1054


  Quantifying source contribution of aeolian sediments is essential to prioritize sources and mitigate wind erosion. The objective of this research is quantifying uncertainty associated with results of sediment fingerprinting method using Monte-Carlo simulation technique in the Sirjan plain. Six sediment ...  Read More

Effective topographic and climate factors on aboveground net primary production in Hir and Neur rangelands of Ardabil province

ardavan ghorbani; Farid Dadjoo; null null; Mahmood Bidar lord

Volume 71, Issue 4 , March 2019, Pages 1055-1071


  The purpose of this study is to investigate the relationships between aboveground net primary production (ANPP) and environmental factors (such as elevation above sea level, slope, aspect, compound topographic index, seasonal and annual precipitation, seasonal and annual temperature) which was carried ...  Read More

Investigation of factors affecting landslide and their susceptibility zoning in Latyan catchment.

Asghar Kouhpeima; Sadat Feiznia

Volume 71, Issue 4 , March 2019, Pages 1073-1083


  Landslide causes many social and economic losses in many parts of the world every year. These losses can be greatly reduced by using appropriate management measures such as mapping landslide susceptibility mapping in the basin. The aim of this study is landslide susceptibility mapping using Mahalanobis ...  Read More

Investigation the management of shepherds in the distribution of livestock in the rangeland and its compliance with the grazing suitability map

javad Motamedi(torkan); Hossein Arzani; morteza mofidi; esmaeil sheidaye karkaj; sahar babayi

Volume 71, Issue 4 , March 2019, Pages 1085-1098


  The role of shepherds in maintaining, managing and distributing livestock in rangelands is very important. Flock guidance plays a major role in the distribution of grazing and livestock performance in rangelands. Therefore, it is necessary to evaluate the existing spatial system and it is clear to what ...  Read More

Forage quality change of camel's feeding plant in the Maranjab desert

Hamidreza Naseri; Nateq Lashkari sanami; Seyed Ali Sadeghi Sangdehi

Volume 71, Issue 4 , March 2019, Pages 1099-1109


  In order to provide animal’s nutritional requirements and production of animal protein, it is necessary to adjust the balanced diet and the correct nutrition plan., which is based on proper understanding of food and this is possible through the analysis of nutrients. This research aimed to study ...  Read More

Effect of Geographical aspect's on Functional Potential and soil surface indicators in Summer Rangelands (Case Study: Chhar-Bagh Summer Rangeland, Golestan province)

Reza Yari; Esfandiar Jahantab; Gholam Ali Heshmati

Volume 71, Issue 4 , March 2019, Pages 1111-1121


  Given the importance of having data on vegetation and soil in different geographical aspect, the aim of this study is the assessment the geographical aspect's impact on Functional Potential and soil surface indicators in Chhar-Bagh Summer Rangeland, Golestan province. For the study used the method Landscape ...  Read More