نتایج جستجو برای: range land
تعداد نتایج: 776847 فیلتر نتایج به سال:
Aim Range-restricted species account for a large proportion of global biodiversity, and many such species are highly threatened by deforestation and intensifying land use in the tropics. The effects of land use on the diversity of rangerestricted species have rarely been studied and remain unknown for vascular epiphytes – diverse and important elements of tropical forests. This study analyses t...
Land and its size are important as the most basic factors of production in agriculture .Fragmentation is one of the main problems that rice producers of Mazandaran province are confronted with. Non-efficiency in farm management, inability in effective using of agriculture technology and machinery, and low range productivity of production are all related to land fragmentation. In order to overco...
The research analyzed the land tenure system among rice farmers in Awe Local Government Area of Nasarawa State, Nigeria. Two hundred and forty (240) farmers were sampled by a multi stage sampling procedure and used as respondents for the study. Well-structured questionnaires were used for data collection. The main means of data analysis were percentages and correlation. Findings revealed that 4...
بر اساس پخش و پراکندگی چینه شناسی روزنبران پلانکتونیک شناسایی شده از برش مورد پژوهش 9 بیوزون شناسایی و معرفی شد که منطبق با بایوزون های استاندارد جهانی در قلمرو تتیس بوده و به ترتیب ازپایین به بالا شامل : بیوزون 1)dicarinella concavata interval zone (سانتونین پسین) بیوزون 2) dicarinella asymetrica total range zone ( کامپانین میانی) بیوزون 3) globotruncanita elevata interval zone ( کامپانین پ...
ecological capability evaluation and landuse planning can determine the best landuses and are important for the proper planning and sustainable development. there are various methods for ecological capability evaluation. in this research have been studied two methods (land use planning method with makhdoom ecological modsels) and (geomorphology method) for ecological capability evaluation in ne...
Land and its size are important as the most basic factors of production in agriculture .Fragmentation is one of the main problems that rice producers of Mazandaran province are confronted with. Non-efficiency in farm management, inability in effective using of agriculture technology and machinery, and low range productivity of production are all related to land fragmentation. In order to overco...
Overview The integration of land administration processes and the collaboration of land agencies are considered essential for the effective delivery of developable land for housing production. However, in most countries, housing and land management policies are usually split between multiple government agencies. The background literature suggests that the activities of governments’ agencies tha...
Understanding uncertainties in land cover projections is critical to investigating land-based climate mitigation policies, assessing the potential of climate adaptation strategies and quantifying the impacts of land cover change on the climate system. Here, we identify and quantify uncertainties in global and European land cover projections over a diverse range of model types and scenarios, ext...
need to increasing agricultural land in order to improve food resources in the past two centuries recentlead to widespread changes in land use and improper management of these lands. continue thisprocess can lead to land degradation and desertification, and improve such soils is very costly;therefore, prevention of land degradation is more desirable. this function requires to research on theuti...
BACKGROUND Although researchers have explored associations between mixed-use development and physical activity, few have examined the influence of specific land uses. PURPOSE This study analyzes how the accessibility, intensity, and diversity of nonresidential land uses are related to walking for transportation. METHODS Multinomial logistic regression was used to investigate associations be...
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