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 Different Treatments on Sleep Failure and Stimulation of Seed Germination (Atriplex leucoclada Boiss Species)

sahar Aryaeefar; Abolfazl Tahmasebi; Majid Mohammad Esmaeili; Ali Rahemi Karizaki

Volume 71, Issue 2 , September 2018, Pages 297-305


  Atriplex leucoclada Boiss is one of the most important native species of dry and semi-arid rangelands in Iran which is faced to low germination and seed dormancy. In order to investigate the effective methods of breaking dormancy of this species, an experiment was conducted in a completely randomized ...  Read More

Spatial and Temporal Variations of Nitrate Concentration in Groundwater (Case Study: Watershed Silveh)

Omid Asadi Nalivan; Seid Saeid Ghiasi; Sadat Feiznia; Narges sagghazade

Volume 71, Issue 2 , September 2018, Pages 307-319


  At present, Groundwater contamination by nitrate, serves as one of the most important environmental issues. In respect to various land uses of Silveh basin, its ground water quality parameters might vary spatially and temporally. For this, ground water samples taken from 145 points were evaluated. After ...  Read More

Local initiatives and indigenous knowledge in community-based water resources management (Case study: Roozkin Village – Sarduyeh- Jiroft District)

hamed eskandari; moslem borji; Mehdi Ghorbani

Volume 71, Issue 2 , September 2018, Pages 321-340


  Local initiatives have been defined as specific collective activities without external support or incentives in order to control either ground or surface waters. One of the most important of approaches in water resources management is community-based water management. Social structures of water resources ...  Read More

Identification of Vegetation-Vulnerable Areas to Drought Using Remote Sensing (Case study: Boushehr Province)

Fatemeh bahreini; Fatemeh Panahi; Mohammad Jafari; Arash Malekian

Volume 71, Issue 2 , September 2018, Pages 341-354


  The complexity of drought phenomenon hinders our full understanding of its impact. Field sampling, Geographic Information Systems, SPI and NDVI, EVI and SAVI indices derived from 16-day interval MODIS images during 2000-2015 were used to better understand the effects of drought on vegetation In recent ...  Read More

Evaluation of the climatic variables of Jiroft Plain using HadCM3 model in future periods

saeid barkhori; rasol mahdavi; gholamreza zehtabian; hamid gholami

Volume 71, Issue 2 , September 2018, Pages 355-366


  The overuse of fossil fuels, population growth and other factors have caused evident changes in the Earth climate. In this study, HadCM3 model was used to evaluate changes in the variables of precipitation, minimum and maximum temperatures at Jiroft plain in future periods. Afterward, climatic variables ...  Read More

The effect of climatic factors on canopy cover and range forage production in semi-steppe rangelands (Case Study: Polur and Rineh-Mazandaran province

mina bayat; Hossein Arzani; adel jalili; hassan ghalij nia

Volume 71, Issue 2 , September 2018, Pages 378-367


  In this study the effects of three important factors: the climatic precipitation, temperature and relative humidity on the amount of canopy cover and forage production in a period of five years (1381-1385) and 1392 in semi-steppe rangelands Reineh and Polur in the Mazandaran province studied. The statistical ...  Read More

Habitat prediction model medicinal species of Rheum ribes L. with Maximum Entropy model in Chahtorsh rangeland of the Yazd province

Mohammad Ali Zare Chahouki; mahbobe abbasi

Volume 71, Issue 2 , September 2018, Pages 379-391


  Rheum ribes species is one of the important medicinal plants in the world. In this study were used maximum entropy method (Maxent) and the MAXENT software to this prediction habitat map. Measure environmental variables was soil variables including gravel percentage, pH, electrical conductivity, percent ...  Read More

Out Ranking Analysis of Susceptible Range land to Degradation in Noshan Watershed, West Azerbaijan Province), Iran

mahshid souri; mina gayeb; Javad Motamedi

Volume 71, Issue 2 , September 2018, Pages 393-404


  Rangelands, using a variety of renewable natural resources are as well as economic value, in terms of effects on soil and water conservation that are very important. This study was conducted in Nushan West Azerbaijan province. Determining the susceptible areas of rangeland to degradation done by out ...  Read More

Comparison of Spatial Variations of Soil Erosion at Gonbad Representative and Treated Watersheds in Hamadan Province

Seyed Hamidreza Sadeghi; Zahra Hashemi Ariyan; Mehdi Vafakhah; Zeinab Karimi

Volume 71, Issue 2 , September 2018, Pages 405-417


  Studying temporal and spatial variations of soil erosion and the effective factors is very important for providing appropriate solutions to properly plan the utilization of watershed resources. However, few studies have attempted to examine temporal and spatial variations of soil erosion. In this study, ...  Read More

Evaluating effect of marons Dam on the Land use using RS & GIS( case study: Behbahan Maroun՚ dam)

Azam Tayebi; Mohammad Faraji; Shahram Yousefi khanghah

Volume 71, Issue 2 , September 2018, Pages 419-430


  This study with purpose analysis the effect of Maroun՚ dam construction on land use changes using Landsat satellite images taken. For this study two The Landsat satellite image of in 16-year period (1999-2014) and maps Topography was used by applying geometric and atmospheric correction. Then using ...  Read More

Investigation of changes of some soil characteristics in natural habitats of Capparis spinosa in Bushehr province

Seyed Hasan Kaboli; Farhad Fakhri; Ali ashraf Jafari; Parviz Bayat

Volume 71, Issue 2 , September 2018, Pages 431-438


  Different plants have different effects on the characteristics of their surroundings, especially on the soil. Soil properties also have the different effects of these plants on them. In this research, the effect of capparis spinosa on the soil characteristics of three areas with different soil characteristics ...  Read More

Zoning of karstic aquifer protection on Tange-Konara Yasuj using COP method

Mohsen Farzin; saeideh menbari

Volume 71, Issue 2 , September 2018, Pages 439-455


  Karstic water resources are one of the most important sources of water for the world's population, which accounts for 25-20% of the world's population; these resources are subject to increasing pressure and require special management due to the nature of the point recharges. In this research, after mapping ...  Read More

Effectiveness of different methods of data separation to increase the accuracy of the estimate suspended sediment stations using sediment ratio curve (Case study: Part of the watershed Atrak in Golestan Province)

abbas ali ghezelsofloo; Mahboobeh Hajibigloo

Volume 71, Issue 2 , September 2018, Pages 457-471


  Estimation of suspended sediment basins of data and information is readily available but for basins without statistics, other methods require. The experimental method known as sediment rating curves or relationship "discharge sediment load" is provided. This study seeks to provide better separation of ...  Read More

Evaluation of change detection and future condition of meadow-land ecosystem of Shahrekord using Landsat data

Elham Kianisalmi; Ataollah Ebrahimi

Volume 71, Issue 2 , September 2018, Pages 473-484


  Wetland meadows as a natural ecosystems plays an important role on sustainability of nature, although are enormously under drainage and changing in the recent years. Shahrekord meadow, which is located adjacent to the city, considered as a natural heritage due to its contribution to tourist visiting, ...  Read More

Landuse changes detection and evaluation of their effects on simulated discharge and sediment yield using SWAT model (Case Study: Galikesh Watershed, Golestan Province)

ayoub moradi; Ali Nakafinejad; Majid Ownagh; Choghi Bairam Komaki; mehrangiz foladi mansouri

Volume 71, Issue 2 , September 2018, Pages 489-504


  Indiscriminate land utilization methods, forest and rangeland degradation, land abandonment and development of residential areas contribute to the changes in flow intensity, erosion rate and sedimentation. Therefore, having knowledge on the effect of land use changes on discharge flow and sediment yield ...  Read More

Evaluation of drought impact on Frequency of dust phenomenon occurrence by SPI, PNI and ZSI indexes


Volume 71, Issue 2 , September 2018, Pages 505-515


  Dust phenomenon is one the problem that is developed due to human interference and unreasonable utilities from natural resources and their destruction. In this review, the dust phenomenon frequency was done using selected synoptic stations statistical in Alborz and Qazvin provinces during 2000 to 2014 ...  Read More

Investigating desertification process of Khash plain with emphasis on water and vegetation criteria

TAYYEBEH MESBAHZADEH; farshad soleimani sardou

Volume 71, Issue 2 , September 2018, Pages 518-528


  Due to incorrect policies in the water resources sector and excessive withdrawal of groundwater resources, water quality in most plains of the country has decreased. Therefore, the quality of water for drinking and agriculture is important in qualitative terms.With this aim in this study, the desertification ...  Read More

The study of the effective-environmental factors on distribution of Calligonum eriopodum Case study: dune lands of Qean

seyedeh khadijeh mahdavi; gholamreza houseynibamrooud; mouhamadhasan jouri; houseyn tavakouli

Volume 71, Issue 2 , September 2018, Pages 529-536


  Calligonum eriopodum is the only psammophyte shrub in Iran, which was reported from South Korassan. Searching of environmental limitation of the species was the goal of current research that has been done on dune lands around the east direction of the Qaen city in south Khorassan. First of all, the habitat ...  Read More

Trend and stationarity patterns of surface flow time series in the Southern Slopes of Alborz Range

Mahsa Mirdashtvan; Ali Najafinejad; Amir Sadoddin

Volume 71, Issue 2 , September 2018, Pages 537-550


  Trend and stationarity analyses of hydrological variables are useful tools for understanding climate change and may provide useful information about likely changes in the future. As non-stationary of time series can occur due to various reasons such as trend existence in data; therefor, in current study ...  Read More

Investigating the effect of natural and urban waste compost biochars on hydraulic parameters in sandy soils

Ali Yazdanpanahi; Khaled Ahmadaali; Salman Zare; Toraj Shabani Omran

Volume 71, Issue 2 , September 2018, Pages 551-561


  This study looked into the effect of different natural and urban waste compost biochar levels (0, 1, 3, and 5%), incorporated in sandy soil (total of 16 soil types), on the saturated hydraulic conductivity coefficient. For this purpose, the hydraulic conductivity of all 16 soil samples was determined ...  Read More