搜索结果: 1-15 共查到“IRAN”相关记录848条 . 查询时间(0.176 秒)
Gap characteristics under oriental beech forest development stages in Kelardasht forests, northern Iran
close-to-nature silviculture forest stand stand dynamics gapmaker silviculture
2018/3/6
This study was carried out to evaluate gap characteristics and gapmakers for different development stages of an oriental
beech forest in northern Iran. Development stages of 1 ha square-shaped mosaic...
Geology and Mineral Chemistry of Gold Mineralization in Mirge-Naqshineh Occurrence (Saqez, NW Iran): Implications for Transportation and Precipitation of Gold
gold quartz veins mineral chemistry EPMA Mirge-Naqshineh Iran
2018/4/10
The Mirge-Naqshineh gold district is situated at northwest of Iran with a NW-trending brittle-ductile shear zone. It is hosted by Precambrian meta-sedimentary and meta-volcanic units traversed by mine...
Platinum-Group Elements Geochemistry and Chromian Spinel Composition in Podiform Chromitites and Associated Peridotites from the Cheshmeh-Bid Deposit, Neyriz, Southern Iran: Implications for Geotectonic Setting
Cheshmeh-Bid Chromitite trace elements platinum-group elements boninitic magma supra-subduction zone
2018/4/10
Dunite and serpentinized harzburgite in the Cheshmeh-Bid area, northwest of the Neyriz ophiolite in Iran, host podiform chromitite that occur as schlieren-type, tabular and aligned massive lenses of v...
LANDSLIDE MONITORING USING INSAR TIME-SERIES AND GPS OBSERVATIONS, CASE STUDY: SHABKOLA LANDSLIDE IN NORTHERN IRAN
Landslide InSAR Time Series GPS ALOS
2017/7/13
Shabkola is a village located in Mazandaran province of northern Iran that suffers from the mass movement happening in the upstream. Deforestation and changes to land use are the main reasons for the ...
Land suitability analysis for rice cultivation using a GIS-based fuzzy multi-criteria decision making approach: central part of Amol District, Iran
fuzzy analytical hierarchy process (FAHP) GIS land suitability map multiple criteria rice growing spatial analysis
2017/4/6
Land suitability analysis and preparing land use maps is one of the most beneficial applications of the Geographic Information System (GIS) in planning and managing land recourses. The main objective ...
Investigation of groundwater quantitative change, Tehran Province, Iran
Groundwater Aquifer Level changes Decline Homand-Absard Iran
2018/3/23
Changes in groundwater level in Homand-Absard plain, located in north-west of Kavir-e-Markazi watershed and east of Tehran province, were studied. The used research method was descriptive approach, an...
Assessment of root-shoot ratio biomass and carbon storage of Quercus brantii Lindl. in the central Zagros forests of Iran
carbon sequestration crown diameter component Persian oak growth form
2018/3/6
Assessment of carbon storage build-up in tree stems is a difficult task due to the lack of information on their carbon
sequestration potential and allocation in different components. Similarly, high ...
Forest density and orchard classification in Hyrcanian forests of Iran using Landsat 8 data
canopy cover Caspian forests satellite data supervised classification support vector machines two-stage sampling
2018/3/6
Satellite-based remote sensing is of crucial importance to provide timely and continuous thematic maps for practical
forestry tasks. There is currently no existing remote sensing-based, large-scale i...
Modelling and mapping of soil damage caused by harvesting in Caspian forests (Iran) using CART and RF data mining techniques
forestry operations hazard zoning spatial prediction timber skidding tree ensemble techniques
2018/3/6
Controlling the soil damage caused by forest harvesting has a key role in forest management due to its effect on forest
dynamics and productivity, mainly through modifying the physical, mechanical, a...
Assessment of plant biological diversity and soil characteristics in the pure ash tree stand and in mixture with beech (a case study of Lavij-Noor, Iran)
Hyrcanian forest mixed stand biodiversity Shannon-Wiener soil chemical properties
2018/3/6
The present study has been done to evaluate the impact of pure ash stand and mixed stand with beech on the herb layer
biodiversity and soil properties in the forests of Noor city. There is a unique s...
Comparison of different erosion control techniques in the Hyrcanian forest in northern Iran
best management practices runoff skid trail soil loss water bar
2018/3/6
The aim of this study was to evaluate the effects of closure best management practices (BMPs) on runoff volume and
soil loss on skid trails that received two densities of soil cover mats and were loc...
Prevalence of burnout among forest workers in Mazandaran, Iran
Maslach Burnout Inventory emotional exhaustion personal accomplishment psychological stress
2017/4/6
Burnout imposes consequences and costs on the organization and employees, such as frequent job and workplace replacement, frequent absenteeism and permissions, and reduced work quantity and quality. S...
第三届伊朗国际结构工程会议（3rd Iran International Conference on Structural Engineering）
第三届 伊朗 国际 结构工程 会议
2017/1/18
There is no doubt that nowadays a great portion of global financial, scientific and engineering capitals and assets are related to structural engineering and its subsidiaries. Iranian Society of Struc...
Introduction of suitable species for planting in gaps of different size (case study: Loveh forest, Golestan, Iran)
canopy gap length of spring shoots mean annual increment of diameter mean annual increment of height seedling
2017/4/6
This study was carried out in Loveh forest, north of Iran. We measured the quantitative characteristics of seedlings including collar diameter (measured at 1 cm above the soil surface), height, and cu...
Recreational values of forest park using the contingent valuation method (case study: Saravan Forest Park, north of Iran)
willingness to pay environmental economics logit regression model economic values
2016/11/11
The aim of this research was to evaluate the economic values of Saravan Forest Park, north of Iran. The contingent valuation method was used for this propose. In order to do this research, 480 questio...