نتایج جستجو برای: landuse

تعداد نتایج: 737  

Journal: :International Journal of Information Systems and Informatics 2022

Flood occurs as a result of rising global temperatures, more precipitation, increased runoff, and an increase in the rate urban flooding. The goal this research is to calculate flood risk assessment selected catchment Nigerian metropolis Uyo. Secondary data were obtained from Landsat images study area using correlational design. Using supervised categorization landuse area, watershed pattern, l...

Extended abstract 1- Introduction Changing the forests and pasture landuses to agricultural lands is one of the major global concerns about environmental degradation and climate change. As a result of the rangeland and forest changes into agricultural land and also tillage operations, about 430 million hectares, representing 30% of the world's total plowed land, are annually eroded and leavin...

2016
Awoke Dagnew Teshager Philip W Gassman Silvia Secchi Justin T Schoof Girmaye Misgna

Applications of the Soil and Water Assessment Tool (SWAT) model typically involve delineation of a watershed into subwatersheds/subbasins that are then further subdivided into hydrologic response units (HRUs) which are homogeneous areas of aggregated soil, landuse, and slope and are the smallest modeling units used within the model. In a given standard SWAT application, multiple potential HRUs ...

Journal: :محیط شناسی 0
مهندس محسن محفوظی دکتر مجید مخدوم دکتر علی اصغر درویش صفت

in order to determine optimum landuses (in accordance with natural capability) and improve the current land management, landuse planning process was applied by using gis. within the framework of system analysis approach basic ecological and socio-economic , data were mapped. the mapped data were digitized and imported to idrisi and arc/info to build a database ,along with other descriptive data...

2014
Maria Helbig-Bonitz Gemma Rutten Elisabeth K. V. Kalko

Fruit bats can disperse figs over different landuse types on Mount Kilimanjaro, Tanzania Maria Helbig-Bonitz*, Gemma Rutten* and Elisabeth K. V. Kalko Institute for Experimental Ecology, University of Ulm, AlbertEinstein-Allee 11, 89069, Ulm, Germany, Institute of Plant Sciences, University of Bern, Altenbergrain 21, CH-3013, Bern, Switzerland and Smithsonian Tropical Research Institute, PO Box...

Negative impacts of gully erosion in marly areas are severe due to improper landuse practices such as irrigation, tillage, overgrazing and degradation of vegetation cover. The objective of this research was to evaluate gully thresholds related to plant vegetation cover and landuse change in the Agriculture (AG), Fair Rangeland (FR) and Weak Rangeland (WR) areas of Ghaasr-e-Shirin, Kermanshah, I...

2014
Robert J. Zomer Antonio Trabucco Mingcheng Wang Rong Lang Huafang Chen Marc J. Metzger Alex Smajgl Philip Beckschäfer Jianchu Xu

An analysis andmulti-model approach, based on a statistically derived Global Environmental Stratification (GEnS) and using a downscaled ensemble (n = 63) of CIMP5 Earth System Models applied across four representative concentration pathways (RCP), has been used to project the impact of climate change on spatial distribution of bioclimatic zones and ecosystems within the biodiverse rich Xishuang...

Journal: :Remote Sensing 2011
Mussie G. Tewolde Pedro Cabral

The extension of urban perimeter markedly cuts available productive land. Hence, studies in urban sprawl analysis and modeling play an important role to ensure sustainable urban development. The urbanization pattern of the Greater Asmara Area (GAA), the capital of Eritrea, was studied. Satellite images and geospatial tools were employed to analyze the spatiotemporal urban landuse changes. Objec...

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