نتایج جستجو برای: fars province four land uses destroyed rangeland
تعداد نتایج: 1038919 فیلتر نتایج به سال:
Mountainous rangeland ecosystems have a highly delicate position in ecologic areabecause of severe environmental conditions and having wildlife and livestock. Knowing andrealizing the biotic and abiotic components, which have an interaction with each other in thisecosystem, perform the most important role in to desirable management of it. The systematicmanagement is one of the managing features...
Land use planning means managing our land and resources and it focuses on the functions of ecosystems. The main purpose of this study is to determine the places and sites with necessary capabilities for ecotourism, environmental conservation, agricultural activities, range management, forestry, afforestation, aquaculture, city planning and industrial development in the studied area. This resear...
Regardless the crop production, range and livestock management is unlikely to be possible. Considering the range production is essential for efficient and effective range management. This study aims to investigate the relationship between the rate of forage production and the effects of climate variables. For this purpose, forage yield of four range species including Artemisia sieberi, Scar...
abstract in order to identify of plant parasitic nematodes of rapeseed in isfahan and fars provinces, 208(96 from esfahan and 112 from fars province) soil and root samples were collected from rapeseed fields during 2005-2007. nematodes were extracted from root and soil , then fixed and transferred to glycerin. the nematodes were mounted on slides and examined by light microscope and identified ...
The objective of the present study was to investigate the pasture vegetation changes using satellite data in Semirom, Isfahan province. This study was conducted in 2004 as a wet year and 2009 as a dry year. The WiFS and AWiFS satellite images were acquired and used for the year 2004 and 2009, respectively. First, the vegetation percentage was simultaneously measured in the two years. Then, cons...
owing to the vital effects of future land use changes, it is necessary to predict land use growth pattern before any decision making by the authorities and decision makers. purpose of this research is to model land use change of kohmare scorch plain of shiraz province using ordinary least squares regression (ols) for pre-processing variables and modeling using neural networks. to perform this m...
BACKGROUND We investigated the perceptions of the neurologists practicing in Fars province in Southern Iran about psychogenic nonepileptic seizures (PNES); their diagnostic processes and management strategies. METHODS In this survey, all neurologists participating at the annual meeting of neurologists were asked to participate. These neurologists practice in Fars province. An anonymous questi...
soil contamination significantly reduces environmental quality and affects human health. to investigate and assess the effects of land use on the concentrations of some heavy metals in surface soils of golestan province, 227 soil samples (0-60 cm) were collected from three types of land uses including agricultural lands, natural, and industrial areas. the total metals and metalloids (cr, se, as...
There is a worldwide increase in the incidence of type 1 diabetes (1–3). This increase, in conjunction with the lack of complete concordance in monozygotic twin pairs, points to the importance of environmental factors (3). Useful clues about these environmental factors may be obtained by studying geographical variation in incidence in relation to the characteristics of different countries. Ther...
BACKGROUND The aim of this study was to investigate the trends in mortality from road traffic accidents (RTA) in Fars Province, southern Iran. METHODS The Age and sex-standardized mortality rate attributed to RTA from 2004 to 2010 in Fars Province was calculated using world standard population. We also used linear regression and chi-squared tests. RESULTS Over the period of study (7 years),...
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