نتایج جستجو برای: ecological criteria of slope

تعداد نتایج: 21185841  

Ecological studies are principal methods for scientific maintenance and utilization of natural resources and environment. In this research the study of range plant species autecology has been performed in Khorasan Razavi province. Ecological factor such as topography, soil characteristic and climate were studied. Associated species, the presence of species in vegetation, root system and phenolo...

Arabameri, Ahmad Reza, Ramesht, Mohammad Hossein,

Municipal solid waste (MSW) is the natural result of human activities. If an appropriate management system do not use to this problem, it may lead to environmental pollution and jeopardize the human health. Landfill site selection in urban areas is a critical issue due to its huge impact on the economy, ecology, and the environmental health. Therefore, numerous criteria must be considered and t...

سعیدی مهرورز, شهریار , سیداخلاقی , سیدعباس, نقی‌نژاد, علی‌رضا ,

Knowledge about plant communities and their relationships with ecological factors is one of the most important issues in conservation ecology particularly in the recent decades. The current investigation aimed to study the vegetation ecology of Palangan habitat in Aghdagh Protected area, Ardabil province. In order to collect species and environmental data, a total of 45 plots along a 1500 m ele...

Journal: :Circulation. Heart failure 2010
António M Ferreira Jean-Yves Tabet Lutz Frankenstein Marco Metra Miguel Mendes Christian Zugck Florence Beauvais Alain Cohen-Solal

BACKGROUND Ventilatory efficiency, assessed by the slope of minute ventilation (VE) versus carbon dioxide production (VCO(2)), is a powerful prognostic marker in patients with chronic heart failure. We hypothesized that VE/VCO(2) slope would be more accurate than the current listing criteria for heart transplantation (HTx) in identifying patients likely to derive a survival benefit from this in...

Dmitrichenko, Nikolay, Khrutba, Viktoriia, Khrutba, Yuliia, Spasichenko, Oksana,

The transport system of many Ukrainian cities does not meet the EU standards and requirements. There is a need to improve urban transport networks, to use transport potential efficiently on the basis of environmental logistics and to improve environmental safety as one of the principles of sustainable transport development. The systems model to create an ecologically safe logistics system of pu...

This study was conducted to evaluate the effect of copper extraction on the structure and function of rangelands ecosystem around the mine area in Dareh Zereshk, Yazd province, Iran. Three study sites were considered at the specified intervals of the mine (0-200, 200-500 and 500-1000m). This research was conducted from 2012 to 2013. In each location, three linear transects with a length of 50 m...

    Ecologically-based Management Factors and criteria of River-Valleys in Tehran metropolis-Case Study: River-Valleys of Kan   Abstract: Iran has seasonal rivers because of dry climate, low rainfall and different topography. These river- valleys have main role in forming, genesis, and sustainability of human settlements and provide different ecological services. The main services include...

    Ecologically-based Management Factors and criteria of River-Valleys in Tehran metropolis-Case Study: River-Valleys of Kan   Abstract: Iran has seasonal rivers because of dry climate, low rainfall and different topography. These river- valleys have main role in forming, genesis, and sustainability of human settlements and provide different ecological services. The main services include...

Journal: :journal of sciences islamic republic of iran 0

two dimensional slope profile morphometric investigation in a part of the land failure prone garhwal region of the lesser himalaya, tehri district, u. p., india, indicates that the landslip morphology is closely related to the dominant movement processes active in this terrain. technique developed for the morphometric analysis of landslips involves the use of five morphometric indices. each ind...

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