نتایج جستجو برای: gis andusing rusle model in agricultural regions

تعداد نتایج: 17353537  

2007
Vincent Gaffney

The archaeological database 4. GIS approaches to the archaeology of Hvar 5. GIS approaches to territorial boundary definition 6. Cairns and tumuli; agricultural clearance or ritual activity 6.1. Problems in the definition of stone cairns and tumuli 6.2.The analysis of stone cairns on the island of Hvar 7. Roman villas in the landscape 8. The Greeks on Hvar: optimal paths and visibility analysis...

ژورنال: جغرافیای طبیعی 2017

افزایش هدررفت منابع خاک در حوضه های آبخیز، چالشی مداوم است که با افزایش جمعیت و فشار وارده بر منابع طبیعی و کشت و کارهای ناپایدار در خاک ها و اراضی شیب دار، موجب کاهش تولید در اراضی می گردد. در این تحقیق با تحلیل پارامترهای موثر در بحث فرسایش، وضعیت فرسایش و تولید رسوب در حوزه آبخیز حبله رود  بررسی شده است. داده های مورد استفاده در این تحقیق شامل نقشه DEM30 متر، خاک، تصویر ماهواره ای لندست برای...

پایان نامه :وزارت علوم، تحقیقات و فناوری - دانشگاه فردوسی مشهد - دانشکده ادبیات و علوم انسانی دکتر علی شریعتی 1389

the purpose of this study is to investigate the relationships between teachers’ immediacy behaviors and iranian students’ willingness to talk in english classes. analysis of the results from willingness to talk scale represents a relatively high level of willingness to talk in english classrooms among iranian language learners. the total mean score of students’ willingness to talk was 66.3 ou...

2012
Anurag Ohri

Urban growth identification, quantification, and the knowledge of rate and trends of growth helps in determining the changes associated with land use and land cover properties and in regional planning with better infrastructure in environmentally sound way. Spatial and temporal technologies such as Remote Sensing, Geographic Information System (GIS) and Global Positioning System (GPS) are very ...

2013
Hongming Zhang Qinke Yang Shuqin Li Wenting Han Shangshang Yu Xiaoyan Zhao

LS is a very important factor in erosion evaluation. Slope gradient and slope length is used to calculate LS factor. However a major limitation is the difficulty in extracting the LS factor at regional landscape scales. The geographic information systembased (GIS-based) methods which have been developed for estimating the slope length for USLE and RUSLE model also have limitations. he unit cont...

پایان نامه :وزارت علوم، تحقیقات و فناوری - دانشگاه بیرجند - دانشکده علوم 1391

in this thesis, we consider a mathematical model of cancer with completely unknown parameters. we study the stability of critical points which are biologically admissible. then we consider a control on the system and introduce situations at which solutions are attracted to critical points and so the cancer disease has auto healing. the lyapunov stability method is used for estimating the un...

Mohammad Esmaeil Motlagh, Rasul Nasiri, Saeed Motesadi Zarandi,

Background and Aim: High concentrations of particulate matter-25 (PM2.5) have been the cause of the unhealthiest days in Tehran, Iran in recent years. This study was conducted with the aim of the spatio-temporal analysis of traffic volume and its relationship with PM2.5 pollutant concentrations in Tehran metropolis, Tehran during 2015-2018, using the Geographic Information System (GIS). Materi...

2017
Pia Nilsson Sara Johansson

This paper analyses determinants of agricultural land prices in Sweden with a particular focus on location-specific factors. An asset-pricing model is used to decompose agricultural land prices into expected returns from land in its current agricultural use and expected returns from its potential use. The model is estimated in a cross regional context where explanatory factors relate to regiona...

Journal: :ISPRS Int. J. Geo-Information 2013
Marco Hümann Christoph Müller

At present it is common to use geographic information system (GIS) applications to assess runoff generation. One of these GIS-based tools to generate maps of dominant runoff processes is the so called GIS-DRP approach. The tool, which has been developed mainly based on agricultural areas, uses commonly available input data like a digital elevation model (DEM), geological information as well as ...

پایان نامه :وزارت علوم، تحقیقات و فناوری - دانشگاه شهرکرد - دانشکده ادبیات و زبانهای خارجی 1392

the application of a comprehensive model of communicative language ability (cla) to language teaching and testing has always been an imperative in l2 education since hymess proposal of communicative competence in the 1970s. recent l2 research has clearly underscored the importance of sufficient pragmatics representation as an essential component of cla in pedagogical and testing practices in l2...

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