نتایج جستجو برای: irrigular land use

تعداد نتایج: 1819039  

Journal: :ecopersia 0
asghar farajollahi young researchers club, abhar branch, islamic azad university, abhar, iran hamid reza asgari assistant professor, department of arid regions management, gorgan university of agricultural science and natural resources, golestan, iran majid ownagh professor, department of arid regions management, gorgan university of agricultural science and natural resources, golestan, iran mohammad reza mahboubi associate professor, department of agricultural extension and education, gorgan university of agricultural science and natural resources, golestan, iran abdolrasoul salman mahini associate professor, department of the environment, gorgan university of agricultural science and natural resources, golestan, iran

the socio-economic factors affecting land use changes in the maraveh tappeh region was determined from the viewpoint of beneficiaries and experts. the items of questionnaires designed as rating scale based on the five options likert. reliability of questionnaires was determined by cronbach's alpha. two sets of questionnaires were designed for beneficiaries and experts. reliability of benef...

Hassan Amini, Kazem Naddafi Masud Yunesian Ramin Nabizadeh Seyed-Mahmood Taghavi-Shahri,

Land use regression (LUR) models have been globally used to estimate long-term air pollution exposures. The present study aimed to analyze the association of different land use types and traffic measures with air pollutants in Tehran, Iran, as part of the future development of LUR models. Data of the particulate matter (PM10), sulfur dioxide (SO2), and nitrogen dioxide (NO2) were extracted from...

Quantifying land use change dynamics is critical in tackling environmental and socio-economic challenges such as climate change in recent years. This study takes Siahkal County in Guilan Province as the research subject and analyzes the land use changes in two different years: 2000 and 2021, and predicts the change in 2031. We carried out land use change analysis using LANDSAT-7 ETM+ and LANDSA...

In recent years, land use mix has become an important issue of ​​research in urban studies. One of the important issues related to land use mix is how to measure it in urban areas. Given that many studies have assumed land use mix as an independent variable affecting other urban life dimensions, Therefore, how it is measured is crucial for achieving reliable results. The purpose of this researc...

Journal: :مرتع و آبخیزداری 0
سعیده حیدری کارشناس ارشد مرتع داری دانشگاه تهران علی اکبر مهرابی استاد گروه دانشکدة کشاورزی و منابع طبیعی، دانشگاه آزاد اسلامی واحد علوم و تحقیقات محسن محسنی ساروی استاد گروه احیای مناطق خشک و کوهستانی، دانشگاه تهران سکینه ساعدی اوجقاز کارشناس ارشد مرتع داری دانشگاه تهران

the concept of land use transition highlights that land use change is non-linear and is associated with other societal and biophysical system changes. changes in human systems has resulted in changes in the natural system such as changes in land use. land use change causes not only environmental factors like geography and topography are important, but social factors examined such as population ...

Journal: :تحقیقات جغرافیایی 0
احمد پوراحمد دانشگاه تهران کرامت اله زیاری دانشگاه تهران محمدی روح اله دانشگاه تهران

â â â  the investigation of urban land use illustrates designation of urban space at various land use during time and achieving to urban development goals. present research investigates urban land use distributions and effective factors on urban land use special distribution in dogonbadan city. this research follows two main purposes: firstly, achieving to system of desirable urban land use for...

2004
Daniel G. Brown Robert Walker Steven Manson Karen Seto

Models are used in a variety of fields, including land change science, to better understand the dynamics of systems, to develop hypotheses that can be tested empirically, and to make predictions and/or evaluate scenarios for use in assessment activities. Modeling is an important component of each of the three foci outlined in the science plan of the Land-use and -cover change (LUCC) project (Tu...

Journal: :محیط شناسی 0
مهرنوش بختیاری فر کارشناس ارشد gis دانشکدة مهندسی نقشه برداری، دانشگاه صنعتی خواجه نصیر الدین طوسی محمد سعدی مسگری استادیار گروه مهندسی gis، دانشکدة مهندسی نقشه برداری، دانشگاه صنعتی خواجه نصیرالدین طوسی محمد کریمی دانشجوی دکترای gis، دانشکدة مهندسی نقشه برداری، دانشگاه صنعتی خواجه نصیرالدین طوسی ابوالقاسم چهرقانی کارشناس ارشد gis دانشکدة مهندسی نقشه برداری، دانشگاه صنعتی خواجه نصیر الدین طوسی

in recent decades, as a result of population growth, industrial developments, scarcity of sources, etc. more attention has been paid to spatial planning. spatial planning needs the consideration of different goals, scenarios, criterions and constraints, which leads us to the usage of spatial multi-criteria decision analysis (mcda) methods. the mail goal of this research is to develop a novel mo...

براتی قهفرخی, سوسن, خواجه الدین, سید جمال الدین, رایگانی, بهزاد, سلطانی کوپایی, سعید,

To investigate land use changes, Qale Shahrokh basin (15098.1 ha area) was selected. Satellite images of Landsat sensors (MSS, TM and ETM+) were used. After improvement and different enhancement analysis of images such as FCC, PCA, the study area was checked using GPS and topographic maps (1:50000) and other information. Land use units were determined using classified random sampling method. Ma...

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