Aller au contenu principal

page search

Issuesutilisation des terresLandLibrary Resource
There are 9, 839 content items of different types and languages related to utilisation des terres on the Land Portal.
Displaying 1573 - 1584 of 4598

Exploitation of TerraSAR-X Data for Land use/Land Cover Analysis Using Object-Oriented Classification Approach in the African Sahel Area, Sudan

Journal Articles & Books
Décembre, 2013
Soudan

Recently, object-oriented classification techniques based on image segmentation approaches are being studied using high-resolution satellite images to extract various thematic information. In this study different types of land use/land cover (LULC) types were analysed by employing object-oriented classification approach to dual TerraSAR-X images (HH and HV polarisation) at African Sahel. For that purpose, multi-resolution segmentation (MRS) of the Definiens software was used for creating the image objects.

Linking long-term gully and river channel dynamics to environmental change using repeat photography (Northern Ethiopia)

Journal Articles & Books
Décembre, 2011

In the Highlands of Northern Ethiopia gully occurrence is linked to poverty-driven unsustainable use of the land in a vulnerable semi-arid and mountainous environment, where intensive rainfall challenges the physical integrity of the landscape. Trends in gully and river channel erosion, and their relation to triggering environmental changes can proffer valuable insights into sustainable development in Northern Ethiopia.

Macroinvertebrate assemblages of peatland lakes: Assessment of conservation value with respect to anthropogenic land-cover change

Journal Articles & Books
Décembre, 2013
Europe

Small blanket bog lakes can contain many rare and threatened aquatic invertebrate species. Their conservation value, however, is threatened throughout Europe by peat extraction and particularly conifer afforestation, which can compromise the physico-chemical habitat quality of peatland lakes through excessive inputs of forestry-derived dissolved and particulate substances.

Land Cover Change Characteristics of North-South Transect in Northeast Asia from 2001 to 2012

Journal Articles & Books
Décembre, 2016
Fédération de Russie
Chine
Mongolie
Asie

Northeast Asia is an area with relative concentrations of resources, a complex ecological environment pattern, and a marked human—land contrast relationship. This area has significance for analyzing land cover patterns and variations for regional sustainable development among the trans-boundary areas of China, Russia, and Mongolia. In this paper, the transect analysis research tool and transfer matrix method are used to capture the regional land cover change characteristics by using Moderate Resolution Imaging Spectroradiometer(MODIS) datasets recorded from 2001 to 2012.

Overview of national inventories for the LULUCF sector

Conference Papers & Reports
Décembre, 2011

Under the United Nations Framework Convention on Climate Change (UNFCCC), Annex I countries that are Parties to the Climate Change Convention provide annual greenhouse gas (GHG) inventory submissions including GHG data for the land use, land-use change, and forestry (LULUCF) sector. For many countries, carbon sequestration – especially in Forest Land-offsets a significant proportion of national emissions both an-nually and overtime.

Hierarchical Community Occurrence Model for North Carolina Stream Fish

Journal Articles & Books
Décembre, 2014
États-Unis d'Amérique
Amérique septentrionale

The southeastern USA is home to one of the richest—and most imperiled and threatened—freshwater fish assemblages in North America. For many of these rare and threatened species, conservation efforts are often limited by a lack of data. Drawing on a unique and extensive data set spanning over 20 years, we modeled occurrence probabilities of 126 stream fish species sampled throughout North Carolina, many of which occur more broadly in the southeastern USA.

Land Use/Cover Change Detection of Tiruchirapalli City, India, Using Integrated Remote Sensing and GIS Tools

Journal Articles & Books
Décembre, 2012
Inde

The rapid growth of urban population in India is a cause of concern among country’s urban and town planners for efficient urban planning. The drastic growth of urban areas has resulted in sharp land use and land cover changes. In recent years, the significance of spatial data technologies, especially the application of remotely sensed data and geographical information systems (GIS) has been widely used. The present study investigates the urban growth of Tiruchirapalli city, Tamilnadu using IRS satellite data for the years 1989, 1992, 1995, 1998, 2001, 2004, 2007, and 2010.

Principles for life cycle inventories of land use on a global scale

Journal Articles & Books
Décembre, 2013

PURPOSE: To assess the diverse environmental impacts of land use, a standardization of quantifying land use elementary flows is needed in life cycle assessment (LCA). The purpose of this paper is to propose how to standardize the land use classification and how to regionalize land use elementary flows. MATERIALS AND METHODS: In life cycle inventories, land occupation and transformation are elementary flows providing relevant information on the type and location of land use for land use impact assessment.

Land use, land cover changes and coastal lagoon surface reduction associated with urban growth in northwest Mexico

Journal Articles & Books
Décembre, 2003
Mexique

Coastal land use and land cover changes, emphasizing the alterations of coastal lagoons, were assessed in northwest Mexico using satellite imagery processing. Supervised classifications of a Landsat series (1973–1997) and the coefficients Kappa (K) and Tau (τ), were used to assess the area and verify the accuracy of the classification of six informational classes (urban area, aquatic systems, mangrove, agriculture, natural vegetation, and aquaculture). Pixel-by-pixel change detection among dates was evaluated using the Kappa Index of Agreement (KIA).

Intermediate levels of property rights and the emerging housing market in Ho Chi Minh City, Vietnam

Journal Articles & Books
Décembre, 2011
Viet Nam

Vietnam introduced a Policy of Renovation (‘Doi Moi’ Policy) to restructure the economy in 1986. Under this policy, the Land Use Right Certificate was introduced as a form of tenure for agricultural land and urban land, according to the Land Laws of 1987 and 1993, respectively. However, by 2001, most properties and/or land in Vietnam still did not have a legal title. Although Vietnam's land reforms in the 1990s provided some of the weakest private rights among the transition countries, big cities like Ho Chi Minh City are presently homes to thriving housing markets.