Volume 76 (2023)
Volume 75 (2022)
Volume 74 (2021)
Volume 73 (2020)
Volume 72 (2019)
Volume 71 (2018)
Volume 69 (2016)
Volume 68 (2015)
Volume 67 (2014)
Volume 66 (2013)
Volume 65 (2012)
Volume 63 (2010)
Volume 62 (2009)
Simulation of spatio-temporal pattern of Land use changes (emphasis on area under orchard) using Satellite Image and Integrating Marcov Chain Analyse and Geomod Model: A case study: Sofi Chai Basin of Maragheh

Soghra Andaryani; Mohammad Hosein Rezaei Moghadam; khalil Valizadeh Kamran; Farhad Almaspour

Volume 70, Issue 4 , January 2018, Pages 822-835


  Forecasting models of Land Use/ Cover changes are the main resources for managers and policy-makers in order to develop a sustainable land management plan. Changes of Orchard-lands have an effect on water resources as well as soil permeability. Thus simulation of this land use changes, in areas where ...  Read More

Investigate the vegetative properties and chemical composition of Ferula hausskenechtii

Hossein Azarnivand; Sedigh MOhammadi; Sadegh Hossein niyaee; Pouyan Dehghan

Volume 70, Issue 4 , January 2018, Pages 837-849


  One of the best methods to prevent or reduce soil erosion, it is preserving and restoring vegetation. So knowledge about the characteristics of the vegetation, including ecological features as the first and most important biological tool for soil conservation is essential. Coma (Ferula hausskenechtii) ...  Read More

Net primary production variations under the effect of topographic factors in mountain rangelands of Namin county

Elnaz Hassanzadeh Kuhsareh; ardavan ghorbani; Mehdi Moameri; kazem hashemi majd; Ardeshir pounemati

Volume 70, Issue 4 , January 2018, Pages 851-867


  The purpose of this study was to determine the effects of altitude, slope, aspect and topographic index on life forms and total net primary production (NPP) in mountains meadows in Fandoghlou in Namin county in Ardabil province. NPP in three altitude, slope, topographic index classes and four aspect ...  Read More

Assessing the effectiveness of the analytic hierarchy process as a groundwater predicting tool (Case study: Ghorve-Dehgolan plain)

Omid Rahmati; Aliakbar Nazari Samani; Mohammad Mahdavi

Volume 70, Issue 4 , January 2018, Pages 869-879


  Determination of groundwater potential in respect to increasing trend of water demand in Iran, is found to be an unavoidable and vital subject. The present research was aimed to assess the efficiency analytical hierarchical process (AHP) to identify potential groundwater zones. Initially, five parameters ...  Read More

Assessing the efficiency of SWAT model for runoff simulation in Gamasiyab basin

Shahab oddin Zarezade Mehrizi; Asadollah Khoorani; Javad Bazrafshan; Ommolbanin Bazrafshan

Volume 70, Issue 4 , January 2018, Pages 881-893


  Gamasiab River is one of the five main branches of the Karkheh River and plays a basic role in preserving the life and ecosystem of the region. The first step in the adoption of proper and sustainable methods for managing the water resources of the Gamasiyab river is to gain continuous knowledge of the ...  Read More

Carbon and nitrogen allocation in aerial and underground organ of Artemisia austriaca Jacq. in different grazing intensities (Case study: Sabalan Darvishchae Rangelands)

Maryam Asadi

Volume 70, Issue 4 , January 2018, Pages 895-908


  In this research, was investigated the effect of grazing intensities on carbon and nitrogen allocation in aerial and belowground biomass of Artemisia austriaca in summer rangelands of Darvishchae (including Alvares, Aldeshin and Asbmarz villages) at southern slope of Sabalan. The study areas based on ...  Read More

The effect of osmopriming and hormopriyming on germination and early growth of Festuca ovina under drought stress (in vitro)

Masoomeh Abbasi Khalaki; Ardavan Ghorbani; Sahar Samadi Khanghah

Volume 70, Issue 4 , January 2018, Pages 909-919


  Seed priming is a technique by which the seeds of the conditions before getting on their bed and ecological environment in terms of physiological and biochemical readiness to receive germination. Experiment was conducted using a completely randomized design in summer 2015 in rangeland laboratory– ...  Read More

Modelling and Assessment of Landslide Susceptibility Zonation (Case Study: Semirom Basin)

ALIREZA Arabameri; kourosh shirani; khalil rezai; mojtaba yamani

Volume 70, Issue 4 , January 2018, Pages 921-939


  landslides situation recognized using interpreting the aerial photos and extensive field measurements. Among total number of 200 identified landslides, %70 (140 landslides) of them have been utilized for model executing and %30 (60 landslides) of them for verification randomly. This research criteria ...  Read More

The effect of different intensities of grazing on soil chemical properties

Bakhtiar Fattahi; Mohammad Jafari; Soheila Aghabeigi Amin; mahdieh salehi; ayoub karimi; Azad Karami

Volume 70, Issue 4 , January 2018, Pages 941-951


  Abstract This study aimed to investigate the effect of different intensities of grazing on soil chemical properties on Gonbad paired basins-Hamadan. The objective of this research was to characterize the impact of sheep grazing intensity on soil chemical behavior on mountainous in Hamadan rangelands ...  Read More

Chronology of small dams sediments based on depth changes in sediment characteristics (case study: Hasan Abdal watershed, Zanjan province)

sadat feiznia; Meisam Samadi; Teimur Teimurian

Volume 70, Issue 4 , January 2018, Pages 953-963


  The age determination of sediments is usually performed by different methods, all of them need a lot of cost, effort and research facilities. The goal of this research is to compare the results of sediment granulometery with precipitation data to perform chronology of sediments. In this study four check ...  Read More

Performance of HEC-HMS and IHACRES Hydrological Models in Simulation of Flood Hydrograph

Mohammad Golshan; Abazar Esmaili; ali afzali; Afshin Jahanshahi

Volume 70, Issue 4 , January 2018, Pages 965-976


  Simulation with using of computer models are developing very fast and these models are essential tools for understanding of man from the watershed and hydrological processes. In this study IHACRES and HEC-HMS rainfall runoff models was used for simulation of four flood hydrographs in Kasilian watershed ...  Read More

Performance evaluation of different estimation methods of suspended sediment load by sediment rating curve in Sefidrood watershed

sedigeh mohamadi; Ali Salajegheh; Hassan Ahmadi; Jamal Ghoddousi; Ali Kianirad

Volume 70, Issue 4 , January 2018, Pages 977-990


  Suspended sediment load is the biggest non-point pollution source and a major factor of degradation of surface water quality. Because of hydraulic models of sediment transport can not predict the suspended sediment load, sediment rating curves as usual hydrological methods are utilized spread for this ...  Read More

Establishing the appropriate model of height-weight relationship of two key species of Dactylis glomerata and Bromus tomentosus to estimate utilization of Javaherdehs’ rangeland of Ramsar

mahdie mahmoodi; Ataollah Ebrahimi; Mohammad Hasan Jouri; pejman tahmasebi

Volume 70, Issue 4 , January 2018, Pages 991-1003


  The evaluation of utilization of key species is cornerstone of decision-making in rangeland management. Measuring utilization is essential for regulating grazing intensity, grazing pressure and distribution of animals. utilization of two key grass species of Dactylis glomerata and Bromus tomentosus, ...  Read More

Comparison of the existing and RS geological maps (Case study: Vartavan catchment)

jamal mosaffaie; mohammad reza ekhtesasi; Amin Saleh pourjam

Volume 70, Issue 4 , January 2018, Pages 1005-1013


  Study of geological units is one of the basic studies in many different sciences such as natural resources. The use of geological maps produced by geological survey is now the basic of geological studies in detailed-operating and investigative studies of natural resources. On the other hand, during the ...  Read More

Comparing the performance of Artificial Neural Network (ANN) to predict the long term Meteorological Drought using Climatic Parameters and teleconnection (case study: South of Qazvin Province)

Fatemeh Maghsoud; Mohammad Reza Yazdani; Mohammad Rahimi; Arash Malekian; ali asghar zolfaghari

Volume 70, Issue 4 , January 2018, Pages 1015-1030


  Overview, drought is effected an unusual dry period which is enough continued and causes imbalance in the hydrologic status, as depletion of surface water and groundwater resources. The purpose of this research is modeling meteorological drought prediction using Neural Network- Multi layer Perceptron, ...  Read More

Determination of appropriate regions for groundwater artificial recharge of Ravansar County

kazem Nosrati; mohammad mehdi hossein zadeh

Volume 70, Issue 4 , January 2018, Pages 1031-1043


  Growing population and increasing water resources demand have caused to slump groundwater level in many plains. Therefore there is a necessary to improve the quantity and quality of the aquifers. One of the most important methods to increase water table in recent decade is groundwater artificial recharge. ...  Read More

Effect of various structures and input on the estimation of daily discharge of Amameh watershed

mahboobeh moatamednia; ahmad nohegar; arash malekian; maryam saberi anari

Volume 70, Issue 4 , January 2018, Pages 1045-1066


  One of the most important of hydrological computing in ecosystem is estimation of the relationship between rainfall and runoff. So that investigation occurred processes in it and the estimate of important outputs such as flood and sediment is considered one the most important mission of a watershed project. ...  Read More

Effect of Cushion Plant Canopy of Onobrychis cornuta on Distribution of Soil Seed Bank in Alpine Rangelands of Vaz Watershed

parisa niknam; Reza Erfanzadeh

Volume 70, Issue 4 , January 2018, Pages 1067-1078


  In this study, the effect of cushion plants on spatial distribution of soil seed bank was studied in mountainous and hilly rangelands in Vaz watershed, Mazandaran province. Therefore, we selected randomly 20 Onobrychis cornuta individuals and sampled from soil at four positions around each individual ...  Read More

Evaluation of Effects of Density of Atriplex cultivation on Soil Organic Matter and Particles (Case Study: Incheborun, Golestan province)

roya vazirian; hamid reza asgari

Volume 70, Issue 4 , January 2018, Pages 1079-1087


  Abstract: Soil particles are one of the most effective characteristics related to erodibility and main hydrological and physical aspects of soil. This is important to understand soil characteristics which control soil stability in the case of conservation of soil structure. Also, recognizing critical ...  Read More

Investigation of effect of parent material and plant species on profile distribution of nutritional elements in soils of Kuhrang mountain rangelands

pooya hoshyar; Hossein Khademi; Shamsollah Ayoubi; Mehdi Norouzi

Volume 70, Issue 4 , January 2018, Pages 1089-1102


  Parent material and vegetation are two important and influential factors in the formation of soil. Type of elements in the soil and their availability to plants depends deeply on soil parent material. However, type and density of vegetation change with amount of organic matter and mechanism of element ...  Read More