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Issuesutilisation des terresLandLibrary Resource
There are 9, 801 content items of different types and languages related to utilisation des terres on the Land Portal.
Displaying 1777 - 1788 of 4598

Prospects for geoinformatics-based precision farming in the Savanna River basin, Nigeria

Journal Articles & Books
Décembre, 2011
Nigéria

A geoinformatics-based land suitability assessment approach was used to examine the prospects for precision farming in the Savanna River basin in Nigeria. The procedure involved the overlay analysis of land use, land cover characteristics interpreted on Landsat Thematic Mapper (TM) imagery and physico-chemical soil properties and nutrient attributes in line with FAO suitability guidelines and models. The empirical analysis revealed areas of high, moderate and marginal suitability for the cultivation of maize, yam, cassava and oil palm in the basin.

Greenbelts in Germany's regional plans—An effective growth management policy?

Journal Articles & Books
Décembre, 2016
Allemagne

Greenbelts are the best-known growth management policies in Germany. As part of its regional plans, they attempt to keep undeveloped areas permanently open, thus avoiding sprawling, i.e., land consumptive forms of urban development. However, the effectiveness of such land use designations in terms of guiding and limiting urban growth has rarely been the subject of in-depth research. This is the first study to present a GIS-based analysis of the restrictiveness of greenbelt designations in Germany and their impact on urban spatial structure and land use.

magnetic investigation along a NE–SW transect of the Yasouj Plain, southwestern Iran

Journal Articles & Books
Décembre, 2014
Iran

The magnetic susceptibility (χ) of soils varies with the slope position due to some factors such as texture, drainage class, and land use. Limited information is available about the magnetic susceptibility properties of semi arid regions of southwestern Iran. This study attempts to link χ and Fe oxides of the soils to landforms, soil characteristics, and land use (paddy and dryland soils) on the same parent materials. Ten representative pedons were taken along a NE–SW transect in different physiographic units in the Yasouj Plain.

Reducing Emissions from Deforestation and Forest Degradation (REDD) in Apuí, Southern Amazonas: Challenges and Caveats Related to Land Tenure and Governance in the Brazilian Amazon

Journal Articles & Books
Décembre, 2012

Climate change mitigation mechanisms related to reducing emissions from deforestation and forest degradation (REDD) may provide significant opportunities for re-arranging political networks and overcome forest governance problems, of which land tenure is the main constraint for REDD and reforestation projects in the Amazon. We present a case study of a pilot REDD project associated with reforestation and payment for environmental services in Apuí, southern Amazonas.

Historical landscape photographs for calibration of Landsat land use/cover in the northern Ethiopian highlands

Journal Articles & Books
Décembre, 2014
Éthiopie

The combined effects of erosive rains, steep slopes and human land use have caused severe land degradation in the Ethiopian Highlands for several thousand years, but since the 1970s, however, land rehabilitation programmes have been established to try to reverse deterioration. In order to characterize and quantify the transformations in the north Ethiopian Highlands, a study was carried out over 8884 km² of the Tigray Highlands of northern Ethiopia.

How effective are broad-scale nutrient mass balances for determining the sustainability of lot-feed manure application

Journal Articles & Books
Décembre, 2007

Nutrient mass balances have been used to assess a variety of land resource scenarios, at various scales. They are widely used as a simple basis for policy, planning, and regulatory decisions but it is not clear how accurately they reflect reality. This study provides a critique of broad-scale nutrient mass balances, with particular application to the fertiliser use of beef lot-feeding manure in Queensland.

Adoption of maize production technologies in Eastern Tanzania

Journal Articles & Books
Décembre, 1998
Tanzania

This study of the adoption of maize production technologies in Eastern Tanzania forms part of a larger study to evaluate the impact of maize research and extension throughout Tanzania over the past 20 years. Using a structured questionnaire, researchers and extension officers interviewed farmers in June-November 1995. Survey data were classified by agroecological zone (the lowlands and the intermediate zone).

Efficiency indicators of farmlands use

Policy Papers & Briefs
Décembre, 2012
Bélarus

The review of efficiency indicators of farmlands use was given. Their classification was analyzed and positive and negative sides of their various kinds were considered. Efficiency dependence of farmland use on value of specialization factor was investigated. Offers on perfection of system of the indicators characterizing rationality and efficiency of application of farmlands were made and also new approaches to an estimation of economic efficiency of their use were offered. The research was realized in the conditions of the Republic of Belarus.

GIS-integrated fuzzy rule-based inference system for land suitability evaluation in agricultural watersheds

Journal Articles & Books
Décembre, 2009
Inde

Land suitability evaluation in water scarce agricultural watersheds consists of assessment of land potential for various crops as well as surface water potential to identify the scope for supplementary irrigation. A large amount of information related to the crop land suitability can be conveyed through linguistic terms. Capability of fuzzy sets in modeling involving uncertainty and vagueness is made use of in fuzzy rule-based systems, where various decision making criteria in linguistic terms are expressed as fuzzy rules.

Substantiation of the sizes of the central farmsteads of the agricultural organizations

Policy Papers & Briefs
Décembre, 2012
Bélarus

In course of the research there was resulted the developed model of optimization of the sizes of land tenure of the agricultural enterprises. The research was realized in the conditions of the Republic of Belarus. As a result of realized research the optimum sizes of land tenure of the agricultural organizations with combinational organizational-industrial structure for average conditions of republic were established.

Historical legacy of the old-growth pine forest in Dividalen, northern Scandes

Journal Articles & Books
Décembre, 2012
Suède

The Dividalen (Sami: Dieváidvuovdi) valley in Troms county, North Norway, is well known for its old-growth pine forest, a biodiversity hotspot for dead wood-inhabiting fungi and lichens. The majority of the valley is protected within the Upper Dividalen Landscape Conservation Area and National Park. A general conception is that until the mid-nineteenth century when agriculture and forestry entered the valley, the landscape was entirely untouched by man and only used as a pathway for Sami and their reindeer herds on their annual migrations between Sweden and the Norwegian coast.