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Issuesland useLandLibrary Resource
There are 9, 789 content items of different types and languages related to land use on the Land Portal.
Displaying 1141 - 1152 of 8564

Assessment of some remote sensing techniques used to detect land use/land cover changes in South-East Transilvania, Romania

Journal Articles & Books
December, 2014
Romania

This paper assesses the image differencing technique for the Normalized Difference Vegetation Index (NDVI), the second principal component (PC2), and the TM 4 band (TM 4), as well as the post-classification comparison (PCC) in order to analyze the land use/land cover changes in the South-East Transilvania, Romania. The analysis was performed using two frames from Landsat 5 TM satellite images acquired on August 5, 1993 and July 24, 2009. After applying the NDVI, PC2, and TM 4 image differencing techniques, the images obtained were transformed into change/no change maps.

Whole-Catchment Manipulations of Internal and External Loading Reveal the Sensitivity of a Century-Old Reservoir to Hypoxia

Journal Articles & Books
December, 2016

Climate change is predicted to have widespread impacts on freshwater lake and reservoir nutrient budgets by altering both hypolimnetic hypoxia and runoff, which will in turn alter the magnitude of internal and external nutrient loads. To examine the effects of these potential climate scenarios on nitrogen (N) and phosphorus (P) budgets, we conducted a whole-catchment manipulation of hypolimnetic oxygen conditions and external loads to Falling Creek Reservoir (FCR), an old, eutrophic reservoir in a reforested catchment with a history of agricultural land use.

Recognition of climatic effects of land use/land cover change under global warming

Journal Articles & Books
December, 2013

Greenhouse gas emissions and land use/land cover change (LUCC) are two human activities notably affecting climate change. Will temperature and precipitation increase significantly during global warming resulting in more pronounced LUCC climatic effects? Considering the interannual forcing of these two factors, the NCAR Community Atmosphere Model (CAM4.0) was used in this study to investigate the importance of climatological background to LUCC impacts.

Current distribution of older and deciduous forests as legacies from historical use patterns in a Swedish boreal landscape (1725-2007)

Journal Articles & Books
December, 2010

We combine historical maps and satellite derived data to reconstruct the development of a Swedish boreal landscape over the past 300 years. The aim is to understand legacies from past use patterns in present-day forest composition and consequences for conservation objectives from a landscape perspective. We analyze landscape development in cross-tabulation matrixes, building change trajectories. These trajectories are tested in linear models to explain the distribution of present-day landscape composition of coniferous, mixed, and deciduous forests >110 years.

GIS-based DRASTIC model for assessing groundwater vulnerability in the Ordos Plateau, China

Journal Articles & Books
December, 2013
China

Groundwater plays a key role in arid regions as the majority of water is supplied by it. Groundwater pollution is a major issue, because it is susceptible to contamination from land use and other anthropogenic impacts. A study was carried out to build a vulnerability map for the Ordos Plateau using the DRASTIC model in a GIS environment. The map was designed to show the areas of the highest potential for groundwater pollution based on hydrogeological conditions.

Assessing the effect of green cover spatial patterns on urban land surface temperature using landscape metrics approach

Journal Articles & Books
December, 2015
Iran

The present study was aimed to investigate how and to what extent urban land surface temperature (ULST) is affected by spatial pattern of green cover patch in an urban ambient in Isfahan, Iran. To materialize the effects of spatial pattern of green cover on ULST, Landsat ETM + image data on May 5, 2002 was acquired to be processed for ULST estimation and to generate Land Use/Land Cover (LULC) classes.

effects of landscape cover on surface soils in a low density residential neighborhood in Baltimore, Maryland

Journal Articles & Books
December, 2016

Previous studies at the scale of a city have shown that surface soil nutrients, pH, and soil organic matter (SOM) can vary by land cover, land use, and management. This study was conducted in Baltimore County, Maryland, to quantify the differences in characteristics of soil in a residential neighborhood and adjacent forest patch sampling at a fine scale. The first objective was to compare soil characteristics in a residential neighborhood among ecotope types of forest, lawn, and planting beds that were underlain by the same parent material and thus only differed in plant cover.

Social struggles in Uganda's Acholiland: understanding responses and resistance to Amuru sugar works

Journal Articles & Books
December, 2015
Uganda

On Wednesday 18 April 2012, between 80 and 100 women from Amuru District in northern Uganda stripped naked in a protest to block their eviction from land they claim is rightfully theirs. They did this in front of representatives of the Local District Board and surveyors of the sugar company Madhvani Group, the firm seeking land in the area for sugarcane growing. By resisting dispossession and challenging state violence, small-scale poor peasants reiterated the political salience of rural social struggles and highlighted the significance of land and agrarian questions.