نتایج جستجو برای: land use alterations

تعداد نتایج: 1919910  

Journal: :international journal of environmental research 2014
y.l. liu d.w. tang x.s. kong y.f. liu t.h. ai

land-use spatial allocation is a multi-objective collaborative spatial optimization methodfor rational use of the land use. based on global search capabilities and the information feedbackmechanism of ant colony optimization (aco), a land-use spatial allocation model (aco-la) isproposed. firstlyfirst, a construction graph is built for modeling the land-use spatial allocationproblem. secondlysec...

پایان نامه :وزارت علوم، تحقیقات و فناوری - دانشگاه تربیت مدرس - دانشکده منابع طبیعی و علوم دریایی 1387

چکیده ندارد.

Journal: :desert 0
s. amini department of geography, najafabad branch, islamic azad university, najafabad, isfahan, iran a. gandomkar department of geography, najafabad branch, islamic azad university, najafabad, isfahan, iran m. bagheri bodaghabadi department of soil science, soil and water research institute (swri), karaj, iran and department of geography, najafabad branch, islamic azad university, najafabad, isfahan, iran

there are various methods and models for land evaluation. these methods are classified according to the number of used resources. the best resources capabilities or potentials and land use can be found by analyzing one of the main resources, in the lands close relations to ecologic resources exist. soil has a great potential for introducing the studied region specifications. hence, it challenge...

This edited volume is devoted to the examination of the implications of the inevitable changes wrought by global change on the welfare and livelihoods of tens of millions of people who live in dryland regions. Global change is more than just climate change and the ramifications of changing trade patterns (geopolitical and economic aspects), the shift to the market economy, demographic factors (...

Journal: :مرتع و آبخیزداری 0
علی اکبر مهرابی استاد گروه آبخیزداری دانشگاه آزاد اسلامی واحد علوم و تحقیقات محمد محمدی دانشجوی کارشناسی ارشد مرتعداری دانشکدة منابع طبیعی دانشگاه تهران محسن محسنی ساروی استاد دانشکدة منابع طبیعی دانشگاه تهران محمد جعفری استاد دانشکدة منابع طبیعی دانشگاه تهران مهدی قربانی استادیار دانشکدة منابع طبیعی دانشگاه تهران

providing of landing use maps and detecting of land capacity are required to manage of natural resources and environment and planning of land use. on the other hand, it is necessary to detect of the human deriving forces affecting land use change. in this research, we selected seyed mohaleh and drasara villages in tonekabon city. first, were provided the land use maps in 1987 and 2008 by using ...

Today, with the development   of paradigms such as the compact city, smart growth and new urbanism, mixed land use-as one of principles of this paradigm- has been expanded  in  urban planning of  developing countries and  various researchers tried to develop literature and assessment methods of land use based on the concept of mixture of  land use. The conc...

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Vandalism is one of the problems of cities today in urban public spaces. Vandalism tendencies are shaped by intrinsic and personality factors. And how the location of the location affects the likelihood of vandalism. Among the landmarks, land use is one of the factors affecting the occurrence of degradation. The role of land use index has been examined under the criterion of land use compatibil...

Journal: :دانش آب و خاک 0
مهناز بازوبندی دانشجوی کارشناسی ارشد بیابان زدایی، دانشکده کویرشناسی، دانشگاه سمنان محمد رحیمی استادیار دانشکده کویرشناسی، دانشگاه سمنان آرش ملکیان دانشیار دانشکده منابع طبیعی، دانشگاه تهران سعید قره چلو استادیار دانشکده کویرشناسی، دانشگاه سمنان سید علی اصغر هاشمی استادیار مرکز تحقیقات منابع طبیعی استان سمنان

land use optimization is one of the appropriate methods for soil conservation which helps decision makers and watershed planners in order to make the optimum decision among different land uses. the main objective of this research was to find the optimum area of each land use to reduce soil erosion rate as well as to increase the income of stakeholders in golroudbar watershed located in semnan p...

Journal: :Journal of Insect Science 2005
K.A. Subramanian K.G. Sivaramakrishnan Madhav Gadgil

The impact of riparian land use on the stream insect communities was studied at Kudremukh National Park located within Western Ghats, a tropical biodiversity hotspot in India. The diversity and community composition of stream insects varied across streams with different riparian land use types. The rarefied family and generic richness was highest in streams with natural semi evergreen forests a...

پایان نامه :وزارت علوم، تحقیقات و فناوری - دانشگاه تربیت مدرس - دانشکده علوم انسانی 1389

rivers and runoff have always been of interest to human beings. in order to make use of the proper water resources, human societies, industrial and agricultural centers, etc. have usually been established near rivers. as the time goes on, these societies developed, and therefore water resources were extracted more and more. consequently, conditions of water quality of the rivers experienced rap...

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