نتایج جستجو برای: land cover changes

تعداد نتایج: 1056014  

2014
Bin Peng Shaohua Zhang Shuangyun Peng

Changes of land use/land cover have a significant impact on runoff by altering the surface evaporation, soil moisture conditions and the amount of trapped ground cover, which directly impact the sustainable development of the watershed ecology. In this paper, based on remote sensing images, we simulate runoff of land-use changes of different slopes using GIS technology and SWAT model in Erhai w...

2017
Leanne N Phelps Jed O Kaplan

Land use for animal production influences the earth system in a variety of ways, including local-scale modification to biodiversity, soils, and nutrient cycling; regional changes in albedo and hydrology; and global-scale changes in greenhouse gas and aerosol concentrations. Pasture is furthermore the single most extensive form of land cover, currently comprising about 22-26% of the earth's ice-...

2009
Tomáš Václavík John Rogan

Many countries in Central and Eastern Europe have been undergoing marked economic changes following the collapse of the former “Eastern Bloc” and totalitarian regimes. In the Czech Republic, this transition has had a profound effect on land use management that subsequently results in widespread land cover changes. This study analyzes trends in land use/land cover changes (LULCC) in the context ...

Journal: :J. Geographic Information System 2011
Mohsen Ahadnejad Reveshty

Due to inappropriate planning and management, accelerated urban growth and tremendous loss in land, especially cropland, have become a great challenge for sustainable urban development [1]. Detection of such changes may help decision makers and planners to understand the factors in land use and land cover changes in order to take effective and useful measures. Remote sensing and GIS techniques ...

2004
Tei Laine Jerome R. Busemeyer

An agent-based model, incorporating a small set of primarily agent-based variables, was designed to explain private land-use decision making. Agents are landowners, who allocate their labor and land for different uses in regular time intervals. The goal is to understand what kind of spatial patterns emerge from different agent characteristics, and decision and learning mechanisms. Landscapes pr...

Journal: :IEEE Trans. Geoscience and Remote Sensing 2003
Charles G. O'Hara Jason S. King John H. Cartwright Roger L. King

In the presented methodology, multitemporal Landsat images were used to develop enhanced information about complex assemblages of vegetation and patterns of seasonal land cover variability, thereby facilitating improved land use and land cover (LULC) classification of urbanized areas among sensitive environments along the Mississippi Gulf Coast. For Landsat-5 and Landsat-7 images acquired for l...

2010
Chor-Pang Lo

Time sequential Landsat MSS and TM images were used to map land use/cover of the Atlanta metropolitan area for the past 25 years as a component of the NASA-funded Project ATLANTA (ATlanta Land-use ANalysis: Temperature and Air-quality), which has the objective to model the impact of land use/cover change on temperature and air quality in Atlanta. This paper describes a suite of techniques that ...

Journal: :Int. J. Applied Earth Observation and Geoinformation 2015
Harini Nagendra Paola Mairota Carmela Marangi Richard M. Lucas Panayotis Dimopoulos João P. Honrado Madhura Niphadkar Caspar A. Mücher Valeria Tomaselli Maria Panitsa Cristina Tarantino Ioannis Manakos Palma Blonda

Protected areas are experiencing increased levels of human pressure. To enable appropriate conservation action, it is critical to map and monitor changes in the type and extent of land cover/use and habitat classes, which can be related to human pressures over time. Satellite Earth observation (EO) data and techniques offer the opportunity to detect such changes. Yet association with field info...

2011
T. H. M. Rientjes A. T. Haile E. Kebede C. M. M. Mannaerts

In this study we evaluated changes in land cover and rainfall in the Upper Gilgel Abbay catchment in the Upper Blue Nile basin and how changes affected stream flow in terms of annual flow, high flows and low flows. Land cover change assessment was through classification analysis of remote sensing based land cover data while assessments on rainfall and stream flow data are by statistical analysi...

2011
Molly K. Reif Christopher L. Macon Jennifer M. Wozencraft

REIF, M.K.; MACON, C.L., and WOZENCRAFT, J.M., 2011. Post-Katrina land-cover, elevation, and volume change assessment along the south shore of Lake Pontchartrain, Louisiana, U.S.A. In: Pe’eri, S. and Long, B. (eds.), Applied LIDAR Techniques, Journal of Coastal Research, Special Issue No. 62, 30–39. West Palm Beach (Florida), ISSN 07490208. Advances in remote-sensing technology have led to its ...

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