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)
The roles of beekeeping in increasing the income of range manager (Case Study: Zhiwar village in Kurdistan)

nayefe adak; Hossein Arzani; Sayed Mahdi Heshmatol vaezin

Volume 71, Issue 1 , June 2018, Pages 1-10


  Beekeeping is one of the agricultural production activities that can create employment with a small amount of investment. Beekeeping can be heeded as one approach to increase stakeholder’s income of rangelands, balance between livestock and rangeland resources, enhancing the economic status of ...  Read More

Design of Agricultural Ecological and Rangeland Capability Model Using Integrated Approach of FUZZY-AHP (A case study: Eshtehard city)

Pouyan Dehghan; Hossein Azarnivand; Hassan Khosravi; Gholamreza Zehtabian; Alireza Moghaddam Nia

Volume 71, Issue 1 , June 2018, Pages 11-24


  The excessive reducing capacity of natural resources is one of the most important challenges that human beings have faced it in the last century. Proper land use and land use management based on its ecological potential play an important role in achieving sustainable development. Hence, in order to achieve ...  Read More

Estimation of soil fertility loss using sediment trapped in check dams (Case Study: Safarood watershed upstream of Ramsar county)

Mohsen Armin; mohammadrasul Rajabi; Fatemeh Barzegari Banadkooki

Volume 71, Issue 1 , June 2018, Pages 25-44


  we study the loss of fertility by analyzing the sediments retained behind check dams which was designed to control erosion and fixation of longitudinal profiles in the Safarood watershed of Ramsar during the years 1373 to 1388. For this purpose, soil losses were determined by determining the physicochemical ...  Read More

The use of computational intelligence base models in suspended sediment load estimation (Case study: Gillan province)

Maryam Asadi; Ali Fathzadeh

Volume 71, Issue 1 , June 2018, Pages 45-60


  Understanding of suspended sediment rate is one of the fundamental problems in water projects which water engineers consistently have involved with it. Wrong estimations in sediment transport cause incorrect design and destruction of hydraulic systems. Due to the difficulty of suspended sediment measurements, ...  Read More

Investigation the causes of uncertainty in methods for estimating soil organic carbon storage

isa Jafari Foutami; Esmaeil Sheidai Karkaj

Volume 71, Issue 1 , June 2018, Pages 61-71


  The purpose of this study was to investigate the causes of uncertainty in different methods of estimating soil carbon and also to evaluate the proposed computational method that eliminated the effect of soil bulk density on carbon calculation and the actual soil carbon content for soils with different ...  Read More

Effect of grazing on some morphological characteristics of Bromus tomentellus Boiss., Hordeum bulbosum L. and Agropyron trichophorum (Link) K. Richt. species in semiarid regions Zagheh (Lorestan province)

Alirostam Khanizadeh; Reza Erfanzadeh; Reza Siahmansur

Volume 71, Issue 1 , June 2018, Pages 73-84


  The aim of this study was to quantify the response of Bromus tomentellus, Hordeum bulbosum and Agropyron trichophorum to continuous grazing of sheep in semi-arid rangelands of Lorestan. In two areas, grazed and ungrazed, 4 transects of 200 meters were established and 10 random points were selected along ...  Read More

Land Use change Detection of 3 and 4 Karun Dams Using Satelite Images

somaieh dehdari; nezam armand; mohammad faraji; nasim arman; fatemeh hadian

Volume 71, Issue 1 , June 2018, Pages 85-96


  The study aimed to evaluate the effects of Karon 3 and 4 dams on land use and cover changes, for this aim 4 images over 28 years (taken in 1985, 2003, 2009 and 2013) were obtained and geometric, atmospheric and topographic corrections were applied. Maximum likelihood and post-classification techniques ...  Read More

Analysis of Geo-environmental parameters and gully erosion susceptibility mapping in toroud watershed using data-driven Evidential Belief Function method

ALIREZA Arabameri; khalil rezaei; mojtaba yamani

Volume 71, Issue 1 , June 2018, Pages 97-114


  Gully erosion is one of the erosive processes that mostly change the shape of the earth surface and has severe environmental and economic damages. The aim of this research is modeling between geo-environmental parameters effective in gully erosion and gully occurrence in the study area and gully erosion ...  Read More

Investigating the interaction of drought and contamination on species performance (Agropyron desertorum)

mahshid souri; khaled bayazidi; ehsan zandiesfahan; javad motamedi

Volume 71, Issue 1 , June 2018, Pages 115-126


  Agropyron desertorum is the most important perennial grasses are semi-arid and temperate areas, which are recommended by natural resource experts to provide forage, pasture, soil stabilization and management of water resources. Awareness of the variation of rangeland species in different environmental ...  Read More

Investigating the vegetation dynamics of alpine rangelands under local management conditions (Case study: Baghroo summer rangelands in Ardebil province)

Jaber Sharifi; Amrali Shahmoradi

Volume 71, Issue 1 , June 2018, Pages 127-136


  Vegetation changes rangelands, that usually occurs in the composition and structure of vegetation over time. On the other hand, human factors, especially rangeland management, play an important role in maintaining stability or degradation. The purpose of this study was to investigate the dynamics of ...  Read More

Comparison of carbon storage In Natural And Planted Ranges

afshin sadeghirad; Hossein azarnivand; mohamad jafari; mohamadali zarechahoki

Volume 71, Issue 1 , June 2018, Pages 137-148


  Nowadays climate change, is the most significant threat in terms of sustainable development, particularly in developing countries. So regarding to rangeland ecosystems and their ability is a Particular attention to sequester carbon. This study aimed to assessing the carbon sequestration potential of ...  Read More

Impact of government policy and investment on reducing the effects of water crisis in arid and semi arid regions (Bajestan city of Razavi Khorasan province)

hosain kaffash; mostafa taleshi; hosain rahimi

Volume 71, Issue 1 , June 2018, Pages 149-171


  Government policies and investments that have been made in the past few decades with the aim of sustaining rural settlements have not reached desirable results, but today, most villages have adapted and adapted to environmental crises such as water crisis, adaptability and less agitation. In this research, ...  Read More

Comparison the efficiency of M5 and Genetic Programming on Suspended Sediment Load Estimation of Rivers

javad zahiri; hadis shahrokhi; Ahmad Jafari

Volume 71, Issue 1 , June 2018, Pages 173-187


  Suspended sediment load estimation is one of the most important and complicated debates on sediment transport and river engineering. Therefore, the variety of methods developed to estimate suspended sediment load in rivers. According to the empirical nature of these methods, the results have low accuracy ...  Read More

Determination of climate generators potential in climate data production in area with data limitation (Case study: north and northeast of Iran).

1 1; 1 1

Volume 71, Issue 1 , June 2018, Pages 189-204


  Stochastic climate generators are used in many studies such as application of hydrologic, environmental management and assessment of agriculture risk. These studies require for assessment of risk to long term series from meteorological data. Considering of climate data limitation at large area in Iran ...  Read More

Effect of land use change and urbanization on runoff peak discharge (Case Study: Zanjan City)

Fatemeh Einloo; Ali Salajegheh; Arash Malekian; Mohsen Ahadnejad

Volume 71, Issue 1 , June 2018, Pages 205-221


  Urbanization has led to development the impervious surfaces and subsequently changes in urban hydrology. The aim of this study is investigate the effect of land use change and urbanization on the changes of runoff peak discharge in Zanjan City Watershed, Iran. In order to, Landsat Thematic Mapper (TM) ...  Read More

Zonation and comparing quality characteristics of drinking water wells in the city of Yazd using geostatistics

Mohammad Reza Ekhtesasi; mohammad sefid; Ali Morovati Sharif Abadi

Volume 71, Issue 1 , June 2018, Pages 223-240


  Zonation of quality of drinking water sources is necessary for Water Management in Arid and Hyper Arid areas. In this research, spatial variations of quality characteristics of water (EC, Na, K, Mg, Ca, NO3, SO4, Alkalinity, Cl, TH and TDS were investigated in one-year period (2015-2016) based on the ...  Read More

Appraising the Structural Characteristics of Social Capital of Local Beneficiaries Network in Keeping with Collaborative Natural Resource Governance (Pilot: Sarayan County, South Khorasan Province)

Mehdi Ghorbani; leila avazpour; sadegh heydari

Volume 71, Issue 1 , June 2018, Pages 241-252


  Governance of natural resources is currently hampered by abundant challenges. The way out of this dead-end is injecting kind of capital derived from people per se i.e. social capital which is unfortunately the missing part of collaborative governance of natural resources. The present study was an attempt ...  Read More

Measuring and calibrating of rainfall characteristics in tow nozzles rainfall simulator

Ataolah Kavian; 1 1; 1 1; 1 1; 1 1; 1 1; 1 1

Volume 71, Issue 1 , June 2018, Pages 253-267


  Small and portable rainfall simulators are essential tools in study of soil erosion and surface hydrology and it provide to repeat natural rainfall characteristics. In addition to the introduction of this device, calibration tests were performed including nozzles discharge evaluation, uniformity test ...  Read More

Calibration of SEBAL Model to Estimate Evapotranspiration Using LDCM

Hamidreza Koohbanani; Mohammadreza Yazdani

Volume 71, Issue 1 , June 2018, Pages 269-283


  Approximating the evapotranspiration is one of the most difficult parts of the hydrologic cycle. However it plays a very important role in the water balance equation. In the present study, the SEBAL model has been revalidated as an approved and successful approach for calculating the evapotranspiration. ...  Read More

Modeling of daily soil temperature using synoptic data and neural network

TAYYEBEH MESBAHZADEH; ali azareh; Elham Rafiiei sardooi; Fateme FarzanePei

Volume 71, Issue 1 , June 2018, Pages 285-295


  Soil moisture, as the soil hydrologic parameters, can be affected by soil temperature and controls various hydrological processes. Given the importance of this issue, in this study, the efficiency of artificial neural network was studied to simulate soil temperature at 5- 100 cm depth. Recorded meteorological ...  Read More