نتایج جستجو برای: matrixbased on the landscape ecology approach

تعداد نتایج: 17635381  

پایان نامه :وزارت علوم، تحقیقات و فناوری - دانشگاه تبریز - دانشکده کشاورزی 1394

with the increasing population and the need for more food, as well as with the development of science and technology, human approach to unnatural and often chemical inputs to increase agricultural production has been a great expansion and problems such as increased cancers, chronic diseases has created environmental pollution. implementation of organic organic is a solution to these problems . ...

Habitat and ecosystem fragmentation and, consequently, the loss of landscape connectivity are major causes of biodiversity destruction, leading to disruption of material, energy, and information flow at the landscape scale. Given the importance of this issue, the current study aimed to evaluate the ecological connectivity and spatial planning of Qazvin Province, in order to re-establish and pro...

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

abstract while task-based instruction is considered as the most effective way to learn a language in the related literature, it is oversimplified on various grounds. different variables may affect how students are engaged with not only the language but also with the task itself. the present study was conducted to investigate language and task related engagement on the basis of the task typolog...

پایان نامه :وزارت علوم، تحقیقات و فناوری - دانشگاه اصفهان - دانشکده ادبیات و زبانهای خارجی 1393

تاثیر آموزش مهارت خود محوری بر روی ارتقاء مهارت شنیداری زبان آموزان هدف این پژوهش بررسی عوامل موثر در ارتقا مهارت شنیداری زبان آموزان ایرانی بود. در مرحله اول این تحقیق پژوهشگر پس از انجام مصاحبه نود زبان آموز را با استفاده از تست ایلتس انتخاب شدند. برای بررسی عوامل عوامل موثر در ارتقا مهارت شنیداری زبان آموزان ایرانی از دو نوع فیلم ویرایش شده و ویرایش نشده استفاده گردید.برای انجام تح...

افراخته, روشنک , سفیانیان, علیرضا , عسگریان, علی ,

The sensitivity of landscape metrics to the scale effect is one of the most challenging issues in landscape ecology and quantification of land use spatial patterns. In this study, fractal dimension was employed to assess the effect of scale on the sensitivity of landscape metric in the north of Iran (around Sari) as the case study. Land use/ cover maps were derived from Landsat-8 (OLI sensor) i...

2013
Yin Ren Xiaohua Wei Darui Wang Yunjian Luo Xiaodong Song Yajun Wang Yusheng Yang Lizhong Hua

The relationship between landscape patterns and functions is the central research theme of landscape ecology and forest management. This study assesses the interactive relationship of landscape heterogeneity with the carbon stock of urban forests in the city of Xiamen, Fujian Province, China, using spatial and statistical analyses. The objectives of this study are to explore the most appropriat...

2007
Michael Kleyer Robert Biedermann Klaus Henle Elisabeth Obermaier Hans-Joachim Poethke Peter Poschlod Boris Schröder Josef Settele Doris Vetterlein

Landscape Ecology Group, University of Oldenburg, D-26111 Oldenburg, Germany Institute of Geoecology, University of Potsdam, D-14415 Potsdam, Germany Helmholtz Centre for Environmental Research – UFZ, Department of Conservation Biology, Permoserstr. 15, 04318 Leipzig, Germany Field Station Fabrikschleichach, University of Würzburg, Glashuettenstrasse 5, 96181 Rauhenebrach, Germany Institute of ...

پایان نامه :وزارت علوم، تحقیقات و فناوری - دانشگاه اصفهان - دانشکده زبانهای خارجی 1390

this thesis attempts to study the representations of the third-world intellectuals in three fictional works by the british-educated trinidadian nobel-winner v. s. naipaul: the mimic men, a bend in the river, and magic seeds. the first one recounts the story of ralph singh’s sense of alienation, his experiences as a colonial politician, and his struggle to give order to his disorderly world thro...

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