نتایج جستجو برای: improper land use

تعداد نتایج: 1824473  

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...

2017
K. K. Osuri R. Nadimpalli U. C. Mohanty F. Chen M. Rajeevan D. Niyogi

The hypothesis that realistic land conditions such as soil moisture/soil temperature (SM/ST) can significantly improve the modeling of mesoscale deep convection is tested over the Indian monsoon region (IMR). A high resolution (3 km foot print) SM/ST dataset prepared from a land data assimilation system, as part of a national monsoon mission project, showed close agreement with observations. Ex...

Journal: :iranian journal of environmental sciences 0
maliheh masoodi msc. graduate in environmental science, gorgan university of agricultural and natural resources, gorgan, iran abdolrasoul salman mahiny assoc. prof., faculty of environment science, gorgan university of agricultural and natural resources, gorgan, iran marjan mohammadzadeh assist. prof., faculty of environment science, gorgan university of agricultural and natural resources, gorgan, iran seyed hamed mirkarimi assist. prof., faculty of environment science, gorgan university of agricultural and natural resources, gorgan, iran

today, ecotourism is a major tourist activity around the world. it is based on environment potential through which suitable utilization and conservation of sites under management practices including considering accurate planning, potential, and peoples’ preferences are realized. the present study was conducted to determine people’s recreational preferences using questionnaires to evaluate the e...

Journal: :desert 2006
a. kelarestaghi h. ahmadi m. jafari

land use change may influence many natural phenomena and ecological processes, including runoff, soil erosion, sedimentation and soil conditions. decreasing of forest area in the north of iran is one of the critical problems in recent years. the aims of this study are to detect land use changes between 1967 to 2002 using satellite images of land sat 7 etm+ (2002), aerial photos and digital topo...

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