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Issuesutilisation des terresLandLibrary Resource
There are 9, 789 content items of different types and languages related to utilisation des terres on the Land Portal.
Displaying 769 - 780 of 4598

Evaluation of land and water resources in the province of Kirsehir in terms of agriculture

Journal Articles & Books
Décembre, 2011
Turquie

Soil and water resources are among natural wealth of a country and are main components of agriculture that meet food requirement. Development, protection and management of the soil and water resources have become a necessity today. Required investments should be made on improvement of water resources to develop the region in terms of agriculture. This study, examining previous studies on soil and water resources in Kırsehir and problems faced and solutions for these problems provides preliminary information on future studies.

Research on land use decisions to carry out remote sensing:A case study on Gediz Delta

Policy Papers & Briefs
Décembre, 2011
Turquie

Gediz Delta is place of empties itself into the sea of Gediz River. Its one of the important wetland of Turkey which under the protection of Ramsar Convention. It has lots of lagoones, salt marshes, freshwater marshes, large saltpans and also ornitotourism place Kuş Cenneti. Gediz Delta has rich flora and fauna biodiversity because of this its important place for natural life sustainability.

Linking in-stream nutrient flux to land use and inter-annual hydrological variability at the watershed scale

Journal Articles & Books
Décembre, 2012

The significance of nutrient inputs at the watershed scale is best expressed in terms of in-stream processes, compared to evaluating simple field measurements of nutrient inputs. Modeling tools are necessary to consider the complexity of river networks in the determination of the sources and processes by which nutrients are transported at the watershed scale.

Location set covering for waste resource recycling centers in Taiwan

Journal Articles & Books
Décembre, 2011
Taiwan

The efficiency of Taiwan's waste management and resource recycling systems has been well recognized in recent years, but the present model used to locate recycling centers and to assign collection depots to those centers continues to show low efficiency. To address this issue, the study herein suggests implementing a new location-planning and assignment model to reduce the number of existing recycling centers. Such a reduction would reduce the use of land resources.

LOCATIONAL EFFECTS OF URBANIZATION ON AGRICULTURE IN SOUTHEASTERN PENNSYLVANIA

Conference Papers & Reports
Décembre, 2000
États-Unis d'Amérique

Most agricultural output in the northeastern United States comes from counties that have experienced significant development. A mail survey, with 300 responses, was conducted in southeastern Pennsylvania to determine farmer adaptation to urbanization in this region. Despite development, traditional agriculture still predominates. Changes in land use were examined using multinomial logit models.

Hydrolytic enzyme activities in agricultural and forest soils. Some implications for their use as indicators of soil quality

Journal Articles & Books
Décembre, 2008

Although a great deal of information exists about the effect of land use on soil enzyme activities, much of this is contradictory and brings into question the suitability of soil enzyme activities as indicators of how land use affects soil quality. The purpose of this study was to investigate the effect of land use on different soil biochemical properties, especially hydrolytic enzyme activities, with the aim of providing knowledge about the problems related to the use of enzymes as indicators of soil quality.

Change in soil organic carbon between 1981 and 2011 in croplands of Heilongjiang Province, northeast China

Journal Articles & Books
Décembre, 2016
Chine

BACKGROUND: Soil organic carbon (SOC) is fundamental for mitigating climate change as well as improving soil fertility. Databases of SOC obtained from soil surveys in 1981 and 2011 were used to assess SOC change (0–20 cm) in croplands of Heilongjiang Province in northeast China. Three counties (Lindian, Hailun and Baoqing) were selected as typical croplands representing major soil types and land use types in the region. RESULTS: The changes in SOC density (SOCD) between 1981 and 2001 were −6.6, −14.7 and 5.7 Mg C ha⁻¹ in Lindian, Hailun and Baoqing Counties respectively.

Ad hoc rural regionalism

Journal Articles & Books
Décembre, 2008
États-Unis d'Amérique

A new regionalism has been much documented and researched for metropolitan areas; this article documents that there is a new rural regionalism as well. In the United States, these groups appear most likely to emerge in areas that are challenged by outcomes characterizing globalization's effects on the rural condition: namely, exurban or metropolitan sprawl and the resulting landscape fragmentation, often in combination with extreme pressure on the profitability of small farms or other resource uses.

Heavy Metal Pollution in Urban Soil from 1994 to 2012 in Kaifeng City, China

Journal Articles & Books
Décembre, 2016
Chine

Heavy metal pollution in urban soil has become a serious environmental issue in China since the last three decades. Attention has been given to the investigation of soil contamination; however, there is little information available on the variation of heavy metal pollution in soils. To resolve this problem and provide references on similar regions, 18 topsoil (0∼20 cm) samples were collected from identical sites of districts that with different functions in Kaifeng City in 1994 and 2012. Total contents of As, Cd, Hg, and Pb were determined by standard methods.

Lake Superior: Nearshore variability and a landscape driver concept

Journal Articles & Books
Décembre, 2011

Spatial variation is well known to exist in water quality parameters of the Great Lakes nearshore; however, strong patterns for extended reaches also have been observed and found to be robust across seasonal time frames. Less is known about robustness of inter-annual variation within parameters for water quality in the nearshore.

Potential distribution and population size of the Eurasian lynx Lynx lynx in the jura Mountains and possible corridors to adjacent ranges

Journal Articles & Books
Décembre, 2007

To estimate the potential population size of the Eurasian lynx Lynx lynx in the Jura Mountains and to assess possible corridors between this population and adjacent areas (the Vosges Mountains, the Black Forest and the Alps), we adapted a previously developed Geographic Information system (GIS) probability model for lynx distribution and extrapolated it over the entire mountain range. The model was based on knowledge of the habitat use and land tenure system of resident animals from the central part of the Jura Mountains, where lynx were followed by means of radio-telemetry.

Determination of the land-uses in the close proximity of the River of Kura in Ardahan and optimal land use proposals

Policy Papers & Briefs
Décembre, 2008

Today, natural and cultural reserves are being rapidly lost; however, no efficient protection approaches are being put forward. Existent reserves face with the danger of extinction as the result of the land-misuses and excessive utilisation. In order to make accurate and effective reserve management and planning decisions, optimal land-uses targeting the preservation ecological structure should be determined elaborately.