نتایج جستجو برای: green cover

تعداد نتایج: 247392  

2017
Yuhong Tian Yiqing Liu C. Y. Jim Hanzhang Song

Connectivity is a vital element in landscape structure because of its importance in species–landscape interactions. Connectivity analysis of green spaces in urban landscapes, especially in high-density cities such as Hong Kong, differs from that of habitats in natural or rural landscapes. Using the human being as the target species, we formulated with GIS techniques a resistance weight, a struc...

Journal: :پژوهش های تولید گیاهی 0

in order to investigate genetic correlation and path analysis between grain yield and yield components, fifteen early maturing hybrids of grain corn (zea. mays) using a randomized complete block design with 4 replications were evaluated in khoramabad agricultural research center, iran. the data were collected and analyzed for ear emergence date, anthesis date, maturity date, plant height, ear h...

خواجه الدین, سید جمال الدین, سفیانیان, علیرضا, ضیائی, حمیدرضا, فلاحتکار, سامره,

Remote sensing is the main technology for assessing expansion and rate of land cover changes. Knowing the different kinds of land cover changes and human activities in different parts of lands, as the base information for different planning is especially important. In this study, the land cover changes of Isfahan city that is consist of Isfahan and its` surrounded area was studied for the past ...

2011
S. J. Lee T. Longcore J. P. Wilson

Nature’s services provided by green cover are important to environmental conditions in cities and their ability to adapt to climate change. Researchers using geospatial technologies have dramatically increased the spatial and temporal resolution of knowledge about the distribution of tree and shrub cover in cities. Much of the current research on tree cover in cities has concentrated on individ...

Journal: :journal of tethys 0

the rapid change of land use and land cover in the metropolitan area of tehran has influenced the distribution pattern of land surface temperature (lst). in this study, a spatial autocorrelation analysis is adopted to process the spatial-temporal changes of lst and normalized difference vegetation index (ndvi) in tehran during the period of 1987 to 2010. global spatial autocorrelation analysis ...

Journal: :The Science of the total environment 2012
Alina Premrov Catherine E Coxon Richard Hackett Laura Kirwan Karl G Richards

Application of over-winter green cover (e.g. cover crops) as a measure for reducing nitrate losses from tillage land has been frequently investigated, especially in the unsaturated zone. Monitoring of groundwater is less common in these studies. Studies on groundwater responses to different land treatments can be challenging because they can be influenced by various conditions, such as recharge...

2004
Kiichiro KUMAGAI

The green tract of land is one of the significant factors for urban planning and urban management to improve and conserve the urban environment. Planning the green tracts is often carried out as a part of land use strategy based on relation to neighborhood, their scale, functions, and locational condition. On the other hand, a vegetation-covered area is a considerable focus of investigation for...

Journal: :محیط زیست طبیعی 0
معصومه شعبان دانشجوی کارشناسی ارشد جنگلداری، دانشکده منابع طبیعی، دانشگاه تهران، ایران سید مهدی حشمت الواعظین استادیار دانشکده منابع طبیعی، دانشگاه تهران، ایران مجید مخدوم استاد دانشکده منابع طبیعی، دانشگاه تهران، ایران محمود زبیری استاد دانشکده منابع طبیعی، دانشگاه تهران، ایران جهانگیر فقهی دانشیار دانشکده منابع طبیعی، دانشگاه تهران، ایران

environmental characteristics, including the quality of green spaces, constitute one of the determinants of buildings (house & apartment) transaction prices. in this research, impact of urban green space on building's transaction prices (rials/m2) in karaj region, district 1 (jahanshahr), was analyzed. therefore, a questionnaire concerning building characteristics and transaction prices wa...

2016
Brenda B. Lin Jacqui Meyers Matthew Beaty Guy B. Barnett Marc A. Rosen

In many parts of the world, urban planning has a renewed focus on addressing the multiple challenges associated with population growth and climate change. Focused on local needs and priorities, these planning processes are raising tensions between more compact and dense urban form to reduce energy use and associated emissions and the provision of urban green infrastructure for ecosystem service...

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