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There are 6, 666 content items of different types and languages related to ordenamento do território on the Land Portal.
Displaying 3553 - 3564 of 5057

Underground mining hazard map including building site categories in an area affected by underground mining activities

Journal Articles & Books
Dezembro, 2014
República Checa

The objective of the paper is generation of an underground mining hazard map. The method applied to create the map is based on five categories of areas with different characters of underground mining influence making use of the so-called building site categories. The individual areas with different groups represent various suitability or unsuitability for founding new structures in such influenced territories. They will also reflect a higher or lower degree of influence on already existing structures.

Integrating stream bioassessment and landscape ecology as a tool for land use planning

Journal Articles & Books
Dezembro, 2007
Canadá

1. Bioassessment has evolved significantly from a method of deciding whether an ecosystem exposed to stressors should 'pass' or 'fail' (or how badly it fails). Society wants some notion of what has caused any observed degradation of ecosystems, and what management strategies might improve degraded ecosystems. Managers also want to predict what negative or positive effects different land use strategies will have on the component ecosystems of a landscape, including lakes and streams. 2.

Evaluation and Hotspots Identification of Shallow Groundwater Contamination Risk in the Lower Reaches of the Liaohe River Plain

Journal Articles & Books
Dezembro, 2016

As a prerequisite for groundwater protection and contamination control, evaluation of groundwater contamination risk was the extension of groundwater vulnerability assessment. Based on disaster theory and using shallow groundwater of the lower reaches of Liaohe River Plain as the study area, we built an evaluation index system and a contamination index model for groundwater contamination risks from the perspectives of intrinsic vulnerability, external stresses, and functional value.

study of changes in the rural built environment: Focus on calibration and improvement of an areal sampling approach

Journal Articles & Books
Dezembro, 2010
Itália

The paper describes the main phases and results of a study which is part of a broader research programme aimed at assessing the changes that have occurred in Italian rural landscapes since the Second World War. The research deals with the definition of a methodology suitable for analysing the changes in the rural built environment over wide areas. This methodology focuses on the definition of representative sample areas aimed to reduce survey costs while allowing results to be characterised by a known and provable degree of reliability and precision.

Airports offer unrealized potential for alternative energy production

Journal Articles & Books
Dezembro, 2012

Scaling up for alternative energy such as solar, wind, and biofuel raises a number of environmental issues, notably changes in land use and adverse effects on wildlife. Airports offer one of the few land uses where reductions in wildlife abundance and habitat quality are necessary and socially acceptable, due to risk of wildlife collisions with aircraft. There are several uncertainties and limitations to establishing alternative energy production at airports, such as ensuring these facilities do not create wildlife attractants or other hazards.

Environmental assessment tools for multi-scale land resources information systems. A case study of Rwanda

Journal Articles & Books
Dezembro, 2006
Ruanda

Sustainable land use planning involves both policy- and farmer-oriented agricultural land use strategies. In this paper, a spatially and temporally explicit multi-scale decision support system that reveals the biophysical indicators affecting land use choices of these different stakeholders, is explained and demonstrated. It comprises three different environmental assessment tools, designed to run with data supplied by traditional soil surveys and organised into a land resources information system.

Landscape Planning and Management Tool for Land and Water Resources Management: An Example Application in Northern Ethiopia

Journal Articles & Books
Dezembro, 2014
Etiópia

Land and water degradation due to on-site soil/nutrient loss and off-site pollution/sedimentation are serious environmental problems. Landscape planning and management tools are essential to implement best management practices targeted at locations where they are needed most. Although many soil/water-landscape studies have been published in the last 2 decades, progress in developing operational tools for supporting landscape planning to minimize land and water degradation in developing regions is still modest.

Protected areas do not fulfil the wintering habitat needs of the trans-Saharan migratory Montagu’s harrier

Journal Articles & Books
Dezembro, 2012
África

Populations of migratory birds can be affected by events happening at both breeding and wintering grounds. The Sahel is a vast region holding a large number of wintering trans-Saharan migratory European birds, and current land-use changes there may represent a threat for these species. We used satellite tracking data from the migratory Montagu’s harrier to evaluate habitat use of the species during the wintering season, and whether the current network of protected areas is effective to provide their habitat needs during that season.

Effect of land use types on stream water quality under seasonal variation and topographic characteristics in the Wei River basin, China

Journal Articles & Books
Dezembro, 2016
China

The effect of topographic characteristics of land uses on stream water quality must be addressed for a better understanding of the complex relationship between land use and stream water quality. In this study, Geographic Information System (GIS) and Pearson correlation analysis were used to determine whether there were relationship between land use types and stream water quality at the sub-basin scale in the Wei River basin, China, during the dry and rainy seasons in 2012.

Quantification and Implications of Soil Losses from Commercial Sod Production

Journal Articles & Books
Dezembro, 2010
Estados Unidos

Commercial sod farms occupy about 1.62 x 103 km2 of the landscape of the United States. Land managers generally consider sod farms on an equal footing with other, sustainable agricultural land uses. We measured soil losses associated with sod harvesting in farms in the northeastern United States. Sod harvest resulted in soil losses ranging from 74 to 114 Mg ha–1 yr–1, considerably higher than the tolerable soil loss of 6.7 Mg ha–1 yr–1. Soil losses were proportional to time under sod production, with soil removal rates of 0.833 cm yr–1.

Using a groundwater quality negotiation support system to change land-use management near a drinking-water abstraction in the Netherlands

Journal Articles & Books
Dezembro, 2008
Países Baixos

A negotiation support system (NSS) was developed to solve groundwater conflicts that arose during land-use management. It was set up in cooperation with the stakeholders involved to provide information on the impact of land use, e.g., agriculture, nature (forested areas), recreation, and urban areas, on the quality of both infiltrating and abstracted groundwater. This NSS combined simulation programs that calculate (1) the concentrations of nitrate in shallow groundwater for each land-use area and (2) the transport of nitrate in the groundwater-saturated zone.