نتایج جستجو برای: to introduce landscape degradation model

تعداد نتایج: 11173227  

Journal: :Environmental Modelling and Software 2017
Francesco Tonini Douglas A. Shoemaker Anna Petrasova Brendan Harmon Vaclav Petras Richard C. Cobb Helena Mitásová Ross K. Meentemeyer

Managing landscape-scale environmental problems, such as biological invasions, can be facilitated by integrating realistic geospatial models with user-friendly interfaces that stakeholders can use to make critical management decisions. However, gaps between scientific theory and application have typically limited opportunities for model-based knowledge to reach the stakeholders responsible for ...

2004
Pau Fonseca i Casas Jordi Montero

In this paper we introduce a wildfire simulation model. This is a sample of the possible integration between a discrete event simulator (like LeanSim®, developed by Computing Laboratory of the Barcelona School of Informatics), and a Virtual GIS (like VirtualLands©, developed by Gea4D), in a model that represents the fire propagation in a landscape defined in the GIS (the structure) and in the s...

پایان نامه :وزارت علوم، تحقیقات و فناوری - دانشگاه شیراز - دانشکده علوم 1390

any change in the refractive index of a laser active medium can lead to serious degradation of beam quality, laser beam modes, laser performance and variation in the intensity distribution. alteration in the refractive index of laser active medium is especially notable in high power lasers. it is clear that in the laser beam production, the pumping agent induces a great amount of heat which...

Journal: :آمایش سرزمین 0
سعیده اسکندری دانشجوی دکتری جنگل داری، دانشکده منابع طبیعی، دانشگاه علوم کشاورزی و منابع طبیعی ساری ایوب مرادی دانش آموخته کارشناسی ارشد جنگل داری منابع طبیعی، دانشگاه علوم کشاورزی و منابع طبیعی ساری جعفر اولادی استادیار گروه جنگل داری، دانشکده منابع طبیعی، دانشگاه علوم کشاورزی و منابع طبیعی ساری

gel sefid village is in mashayekh village in central part of ardal city of chahar mahal and bakhtiari province. in the research, quickbird satellite image in google earth software was used to introduce the landscape of this village and to recognize the whole human uses and natural spots in the study area. then the resulting map was transferred to arcgis 3.1 software and the area land use map wa...

Journal: :آب و توسعه پایدار 0
ریحانه مرید افشین دانه کار

in today’s world the concept of “city” without effective landscape is out of imagination. being focal points for human life and activities, cities have to consider the structure and functions which are influenced by natural systems. in this regard, landscapes are inevitable parts of cities with an essential metabolic role. unlike most countries which don’t have to deal with water shortage as a ...

پایان نامه :وزارت علوم، تحقیقات و فناوری - دانشگاه سیستان و بلوچستان - دانشکده ادبیات و علوم انسانی 1392

abstract the present study was conducted in order to investigate the impact of an integrated model of form-focused and task-based instruction on iranian efl learners vocabulary learning and retention.it also aimed to detect efl learners attitude towards the implementation of form-focused task-based vocabulary instruction in the classroom. in order to address the purposes of this study, a sampl...

پایان نامه :دانشگاه رازی - کرمانشاه - دانشکده ادبیات و علوم انسانی 1393

in recent years, there has been a growing interest among researchers to investigate the relationship betweenteacher self-efficacy and classroom behavior management, especially students misbehavior. therefore, this study aimed to comparatively investigate english and arabic teachers’ use of different behavior managementstrategies, their self-efficacy, and their success in an iranian context. th...

Journal: :international journal of environmental research 2010
b. aminzadeh m. khansefid

this study investigates the application of landscape ecology in planning and design of urban ecological systems. the ecological approach to landscape planning and the concepts of designing and implementing ecological systems have gained increasing attention in the last two decades. however, the ecological systems of urban environment need more research to consider built and natural patches and ...

Journal: :Remote Sensing 2016
Worku Zewdie Elmar Csaplovics

Land use transition in dryland ecosystems is one of the major driving forces to landscape change that directly impacts the welfare of humans. In this study, the support vector machine (SVM) classification algorithm and cross tabulation matrix analysis are used to identify systematic and random processes of change. The magnitude and prevailing signals of land use transitions are assessed taking ...

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