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There are 9, 839 content items of different types and languages related to Utilización de la tierra on the Land Portal.
Displaying 1441 - 1452 of 4573

Impacts of landscape fragmentation on simulated precipitation fields in the Amazonian sub-basin of Ji-Paraná using the Eta model

Journal Articles & Books
Diciembre, 2014

Numerical studies on impacts of landscape fragmentation due to land use and land cover change (LUCC) on precipitation fields over the Ji-Paraná basin in the Amazon region are carried out using atmospheric Eta model. Experiments consider historical data about LUCC over the basin from 1978 to 2000 and compare simulations under LUCC conditions with simulations under pristine conditions. In agreement with previous observational studies, model results do not show statistically significant impacts on precipitation in the region.

Comparison between land suitability and actual crop distribution in an irrigation district of the Ebro valley (Spain)

Policy Papers & Briefs
Diciembre, 2008
España

The present research aims to obtain a better insight into the agreement between land evaluation results and actual crop spatial distribution by comparing biophysical land suitability with different crop frequency parameters and with crop rotations derived from multi-year crop maps. The research was carried out in the Flumen district (33,000 ha), which is located in the Ebro Valley (Northeast Spain). Land evaluation was based on a 1:100,000 soil survey according to the FAO framework for the main crops in the study area (alfalfa, winter cereals, maize, rice and sunflower).

TOPICAL ISSUES OF LAND OWNERSHIP POLICY

Journal Articles & Books
Diciembre, 2010
Hungría

A kérdések széles területet ölelnek fel, ami folytatható a földvédelemmel, a kör-nyezetvédelemmel, a földadó kérdésével stb. A politikának – kompromisszumokkal és megegyezéssel – mielőbb lépnie kell, mert a rendezett birtokviszonyok növelik a földárat, élénkítik a termőföld iránti keresletet. Az emelkedő árak ugyanakkor bővítik a földkínálatot, végeredményben élénkül az egész földpiac. Ez a leghatékonyabb eszköz a termőfölddel kapcsolatos spekulációk visszaszorítására.Van-e azonban esély a megegyezésre? Politikai síkon aligha!

Evaluating indicators of land degradation in smallholder farming systems of western Kenya

Journal Articles & Books
Diciembre, 2013
Kenya

Understanding the patterns of land degradation indicators can help to identify areas under threat as basis for designing and implementing site-specific management options. This study sort to identify and assess the patterns of land degradation indicators in selected districts of western Kenya. The study employed the use of Land Degradation Sampling Framework (LDSF) to characterize the sites. LDSF a spatially stratified, random sampling design framework consisting of 10km×10km blocks and clusters of plots.

Pathogen exposure varies widely among sympatric populations of wild and domestic felids across the United States

Journal Articles & Books
Diciembre, 2016
Estados Unidos de América
América Septentrional

Understanding how landscape, host, and pathogen traits contribute to disease exposure requires systematic evaluations of pathogens within and among host species and geographic regions. The relative importance of these attributes is critical for management of wildlife and mitigating domestic animal and human disease, particularly given rapid ecological changes, such as urbanization.

Habitat and open space at risk of land-use conversion: targeting strategies for land conservation

Journal Articles & Books
Diciembre, 2006

Funds available to purchase land and easements for conservation purposes are limited. This article provides a targeting strategy for protecting multiple environmental benefits that includes heterogeneity in land costs and probability of land-use conversion, by incorporating spatially explicit land-use change and hedonic price models. This strategy is compared to two alternative strategies that omit either land cost or conversion threat.

Interactions between landcover pattern and geospatial processing methods: Effects on landscape metrics and classification accuracy

Journal Articles & Books
Diciembre, 2013

Remote sensing data is routinely used in ecology to investigate the relationship between landscape pattern as characterised by land use and land cover maps, and ecological processes. Multiple factors related to the representation of geographic phenomenon have been shown to affect characterisation of landscape pattern resulting in spatial uncertainty. This study investigated the effect of the interaction between landscape spatial pattern and geospatial processing methods statistically; unlike most papers which consider the effect of each factor in isolation only.

Farm Level Costs of Agri‐environment Measures: The Impact of Entry Level Stewardship on Cereal Farm Incomes

Journal Articles & Books
Diciembre, 2014

Applying a difference‐in‐difference approach with propensity score matching, we examine the impact of participation in the Entry Level Stewardship (ELS) scheme on cereal farm incomes in eastern England. We assess the extent to which impacts are related to a) the source of income affected – whether only from agricultural or total business income; b) the channel of the impact – through land use and/or labour input; and c) the level of impacts through time. In addition, we assess the appropriateness of the level of the ELS payment.

roles of roads and agricultural land use in altering hydrological processes in Nam Mae Rim watershed, northern Thailand

Journal Articles & Books
Diciembre, 2008
Tailandia

The distributed hydrology soil vegetation model (DHSVM) is applied in the 107 km² Nam Mae Rim watershed (NMRW) in northern Thailand. Simulations using land cover scenarios for 1989 and 2002, extreme deforestation, and forest, each run with and without roads, show that roads have very small effects on the mean water fluxes, but significantly increase peak flows for all land cover scenarios. The magnitude of the road effect on peak flow depends on the land cover context in which the roads are placed.

Performance of the Endemic Alpine Herb Primula scandinavica in a Changing European Mountain Landscape

Journal Articles & Books
Diciembre, 2015
Noruega

This paper reports on the performance of the red-listed Primula scandinavica, endemic to Scandinavia. The study took place in Jotunheimen, Norway. We evaluated occurrence, density and sexual reproduction variables (number of fertile individuals and number of seed capsules). Habitats were registered as land-cover categories (historical and current; broad habitat types) and habitat patch classes (semi-natural and natural; fine-grained habitat types).

Managing Conflict Over Natural Resources in Greater Kordofan, Sudan: Some Recurrent Patterns and Governance Implications

Policy Papers & Briefs
Diciembre, 2007
Sudán
África oriental

Despite the 2005 Comprehensive Peace Agreement, which brought to an end 20 years of civil warin the Sudan, this country continues to experience smaller-scale conflicts, particularly aroundaccess to and control of natural resources. Some observers lay the blame for this onethnopolitical or tribal divisions.