نتایج جستجو برای: land use land cover lulc

تعداد نتایج: 1894438  

Journal: :Environmental Modelling and Software 2016
Varun Rao Mallampalli Georgia Mavrommati Jonathan R. Thompson Matthew Duveneck Spencer Meyer Arika Ligmann-Zielinska Caroline Gottschalk Druschke Kristen Hychka Melissa A. Kenney Kasper Kok Mark E. Borsuk

In the land use and land cover (LULC) literature, narrative scenarios are qualitative descriptions of plausible futures associated with a combination of socio-economic, policy, technological, and climate changes. LULC models are then often used to translate these narrative descriptions into quantitative characterizations of possible future societal and ecological impacts and conditions. To resp...

Journal: :Remote Sensing 2016
Chuyuan Wang Soe W. Myint Zhihua Wang Jiyun Song

This study examines the spatial and temporal patterns of the surface urban heat island (SUHI) intensity in the Phoenix metropolitan area and the relationship with land use land cover (LULC) change between 2000 and 2014. The objective is to identify specific regions in Phoenix that have been increasingly heated and cooled to further understand how LULC change influences the SUHI intensity. The d...

2014
Ramita Manandhar

As soil is the basis of all terrestrial ecosystems, degraded soil means lower fertility, reduced biodiversity and reduced human welfare. Therefore the focus of this paper is on elucidating the influence of land use and land cover (LULC) change on two important soil quality indicators that are fundamental to effective measures for ameliorating soil degradation; namely soil acidity and soil salin...

Journal: :Remote Sensing 2016
Mahmoud Ibrahim Mahmoud Alfred Duker Christopher Conrad Michael Thiel Halilu Shaba Ahmad

This study analyzed the spatiotemporal pattern of settlement expansion in Abuja, Nigeria, one of West Africa’s fastest developing cities, using geoinformation and ancillary datasets. Three epochs of Land-use Land-cover (LULC) maps for 1986, 2001 and 2014 were derived from Landsat images using support vector machines (SVM). Accuracy assessment (AA) of the LULC maps based on the pixel count resul...

Journal: :اکو هیدرولوژی 0
فاطمه رجایی دانشجوی دکتری، دانشکدۀ منابع طبیعی دانشگاه تربیت مدرس، نور عباس اسماعیلی ساری استاد، دانشکدۀ منابع طبیعی دانشگاه تربیت مدرس، نور عبدالرسول سلمان ماهینی دانشیار، دانشگاه علوم کشاورزی و منابع طبیعی گرگان، گرگان مجید دلاور استادیار، دانشکدۀ کشاورزی، دانشگاه تربیت مدرس، تهران علیرضا مساح بوانی دانشیار، پردیس ابوریحان، دانشگاه تهران، تهران

non-point pollution are an important factor in determining water quality and eutrophication of fresh water. the principle causes of this issue is high concentrations of nutrients in the water especially nitrogen and phosphorus. change of land use particularly affected on water nitrate load. therefore, understanding the correlations between land use and nitrate pollutant is a priority in order t...

2015
Sadroddin Alavipanah Martin Wegmann Salman Qureshi Qihao Weng Thomas Koellner Marc A. Rosen

The Urban Heat Island (UHI) is the phenomenon of altered increased temperatures in urban areas compared to their rural surroundings. UHIs grow and intensify under extreme hot periods, such as during heat waves, which can affect human health and also increase the demand for energy for cooling. This study applies remote sensing and land use/land cover (LULC) data to assess the cooling effect of v...

2013
Kai-ya Wu Xin-yue Ye Zhi-fang Qi Hao Zhang

This study analyzes land use dynamics, spatiotemporal patterns of ecosystem service value (ESV), and the forces driving growth in the Hangzhou metropolitan area (HMA) in China. An integrated approach utilizing a Geographic Information System (GIS) and Remote Sensing (RS) was used to extract information on land use/land cover (LULC) change over the period of 1978–2008 from time-series Landsat MS...

2013
Kent Kovacs Stephen Polasky Erik Nelson Bonnie L. Keeler Derric Pennington Andrew J. Plantinga Steven J. Taff

We evaluate the return on investment (ROI) from public land conservation in the state of Minnesota, USA. We use a spatially-explicit modeling tool, the Integrated Valuation of Ecosystem Services and Tradeoffs (InVEST), to estimate how changes in land use and land cover (LULC), including public land acquisitions for conservation, influence the joint provision and value of multiple ecosystem serv...

2010
Jorge García-Gutiérrez Daniel Mateos-García José Cristóbal Riquelme Santos

Land use and land cover (LULC) maps are remote sensing products that are used to classify areas into different landscapes. The newest techniques have been applied to improve the final LULC classification and most of them are based on SVM classifiers. In this paper, a new method based on a multiple classifiers ensemble to improve LULC map accuracy is shown. The method builds a statistical raster...

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