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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 3493 - 3504 of 5057

Watershed sediment yield reduction through soil conservation in a West-Central Oklahoma watershed

Journal Articles & Books
Dezembro, 2009

Soil conservation practices on the Fort Cobb Reservoir watershed in West-Central Oklahoma were limited before the 1950s. However, extensive soil conservation measures were implemented in the second half of the 20th century to protect agriculturally fertile but erosion-prone soils. Fortuitously, the U.S. Geological Survey (USGS) collected instantaneous suspended-sediment and discharge measurements on major tributaries within the watershed in 1943 –1948 and again in 2004 – 2007, called pre- and post-conservation periods respectively.

Methodology for land use change scenario assessment for runoff impacts: A case study in a north-western European Loess belt region (Pays de Caux, France)

Journal Articles & Books
Dezembro, 2011
França
Europa Setentrional

Changes of agricultural land use often induce changes in hydrological behavior of watersheds. Hence, effective information regarding runoff responses to future land use scenarios provides useful support for decision-making in land use planning and management. The objective of this study is to develop a methodology to assess land use change scenario impacts on runoff at the watershed scale. This objective implies translating qualitative information from scenarios into quantitative input parameters for biophysical models.

Trade-offs between land use intensity and avian biodiversity in the dry Chaco of Argentina: A tale of two gradients

Journal Articles & Books
Dezembro, 2013
Argentina

Studies to assess the relationship between agriculture production and biodiversity conservation usually focus on one gradient ranging from a natural reference land cover type (typically forest) to an intensive productive land use. However, many semi-arid ecoregions such as the dry Chaco are characterized by a mosaic of different land covers, including natural grasslands and woody vegetation with different degrees of transformation, frequently aimed at meat production.

Spatial estimation of surface soil texture using remote sensing data

Journal Articles & Books
Dezembro, 2013
China

Understanding the spatial distribution and variability of soil texture is essential for land use planning and other activities related to agricultural management and environmental protection. This study was conducted to evaluate Landsat Enhanced Thematic Mapper (ETM) remote sensing data as auxiliary variables for spatial estimation of surface soil texture using a limited number of soil samples taken from a site located in the city of PingduShandong ProvinceChina.

Land Use Planning and Social Equity in North Carolina's Compensatory Wetland and Stream Mitigation Programs

Journal Articles & Books
Dezembro, 2011

The U.S. Clean Water Act requires compensatory mitigation for wetland and stream damage through restoration of damaged aquatic ecosystems. We evaluate the North Carolina's Ecosystem Enhancement Program (EEP), a state agency responsible for compensatory mitigation. We compare communities gaining and losing aquatic resources during mitigation, finding new types of socioeconomic disparities that contradict previous studies of mitigation program behavior.

Unidades geomorfológicas ambientales del sur del oasis del Tulum, Andes Centrales de Argentina

Journal Articles & Books
Dezembro, 2008
Argentina

A geomorphologic analysis applied to the knowledge of the regional Quaternary geology was carried out in an arid region of Central Western Argentina. The study area lies between Eastern Precordillera and Western Pampean ranges System. The need for a better knowledge of the territorial units is required for a sustainable development of the new agricultural farms in the southern part of the central valley of the San Juan river. The geomorphologic study combine field works with processing and interpretation of air stereo photographs and satellite images.

Temporal Oscillation and Losses of Three Carbon Forms in a Microcatchment of NW Spain

Journal Articles & Books
Dezembro, 2015

Long-term agricultural sustainability and water quality may be threatened by inadequate land management. Carbon (C) losses at the catchment scale largely depend on land use and management practices. In “Abelar” farm (A Coruña, NW Spain), swine slurry was directly discharged during a period of about 30 years onto agricultural maize fields and rangeland under cattle production. In 1998, the agricultural fields and rangeland were planted to stands of Eucalyptus globulus .

Agricultural potential of mined land of the GAP region

Journal Articles & Books
Dezembro, 2010
Síria
Turquia

The security district of Hatay, Kilis, Gaziantep, Sanliurfa, Mardin and Sirnak province located along southern boundary lies between Turkey and Syria that comprised wide areas. It is considered to evaluate of cleaned mined land with a 300-400 m width and 510 m length. It was estimated that these lands were very productive and that can be used for organic or other types of agriculture .If these lands are cleaned and opened to agriculture, that can create jop opportunities to many families in agriculture.

Past and future seasonal variation in pH and metal concentrations in runoff from river basins on acid sulphate soils in Western Finland

Journal Articles & Books
Dezembro, 2012

Drainage of acid sulphate soils (ASS) increases oxidation, leading to extensive leaching of acidity and metals to rivers (Al, Cd, Cr, Fe, Ni and Zn). This is often apparent during high runoff periods in spring and autumn after long dry periods with low groundwater levels and associated ASS oxidation. Regression models were used to study changes in these water quality variables according to various discharge scenarios. The knowledge of seasonal patterns of water quality variables in future is important for planning land use of the catchments in relation to WFD of European Union.

Recreational boaters' perceptions of scenic value in Rhode Island coastal waters

Journal Articles & Books
Dezembro, 2013

Scenic value has long been recognized as an important feature in land use planning and management. In the US, several states have included scenic value provisions in their coastal zone legislation and required that reviews of project proposals consider scenic or aesthetic effects. In Rhode Island, all permitting decisions must take into account the effect of a proposed activity in the coastal zone, such as a new dock or expanded aquaculture facility, on scenic or aesthetic value. However, there is limited guidance for how the terms scenic value or aesthetic value should be interpreted.