نتایج جستجو برای: various land
تعداد نتایج: 876799 فیلتر نتایج به سال:
By manifesting the response of land to human activity and impacts, degradation of forestland indicates the locations where society is in conflict with sustaining the forest environment. The analysis of land degradation in various land-use/cover patterns of Russia’s vast forest zone (about 1050 million ha, or 63% of the country) clearly demonstrates two human-induced problems, inappropriate tech...
The last review of the modeling of the land mobile satellite channel was done by Karaliopoulos and Pavlidou in 1999. Since then a lot of work has been done to model the land mobile satellite channel. In this paper an up-to-date review of the modeling of the land mobile satellite channel is presented. We look at the various physical characteristics that influence communications in the land mobil...
An artificial neural network is a system based on the operation of biological neural networks, in other words, is an emulation of biological neural system. Artificial Neural Networks or simply Neural Networks are powerful general purpose computing tools. They have become popular in the analysis of remotely sensed data, particularly in classification or feature extraction from image data more ac...
Production and prediction of land-use/land cover changes (LULCC) map are among the significant issues regarding input of many environmental and hydrological models. Among various introduced methods, similarity-weighted instance-based machine learning algorithm (SimWeight) and Markov-chain with lower complexity and proper performnce are frequently used. The main aim of this study is utilizing Si...
Systematic and comprehensive compilation of land use statistics is necessary for planned development of agriculture, forests, grasslands, rural settlements, urban spreads, industries and other land based programmes and activities. The need for optimizing land use in an integrated manner has become particularly relevant in recent years as a consequence of compelling and conflicting demands of gr...
Alternative land use zoning scenarios provide guidance for sustainable land use controls. This study focused on an ecologically vulnerable catchment on the Loess Plateau in China, proposed a novel land use zoning model, and generated alternative zoning solutions to satisfy the various requirements of land use stakeholders and managers. This model combined multiple zoning objectives, i.e., maxim...
Land change modeling supports analyses, assessments, and decisions concerning land management by providing a platform for both encoding mechanisms of land-change processes and making projections of future land-cover and land-use patterns. Approaches have ranged from patternbased methods, such as machine learning models, to structural or process-based methods, such as economic or agent-based mod...
*Support for this paper was provided by Cooperative Agreement 43-3AEM-3-80137 between USDA and the University of Illinois. It does not represent the official views of either institution. This draft has benefitted from discussions with Ken Chomitz, Peter Feather, Charles Hallahan, Ralph Heimlich, Laurian Unnevehr, and participants in seminars at IFPRI, the World Bank, Resources for the Future, U...
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