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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 1333 - 1344 of 4598

Putting people in the map: anthropogenic biomes of the world

Journal Articles & Books
Décembre, 2008

Humans have fundamentally altered global patterns of biodiversity and ecosystem processes. Surprisingly, existing systems for representing these global patterns, including biome classifications, either ignore humans altogether or simplify human influence into, at most, four categories. Here, we present the first characterization of terrestrial biomes based on global patterns of sustained, direct human interaction with ecosystems. Eighteen “anthropogenic biomes” were identified through empirical analysis of global population, land use, and land cover.

new hybrid land cover dataset for Russia: a methodology for integrating statistics, remote sensing and in situ information

Journal Articles & Books
Décembre, 2011
Fédération de Russie

Despite being recognized as a key baseline dataset for many applications, especially those relating to biogeochemical cycles, land cover products in their current form are limiting. Typically they lack the thematic detail necessary for driving the models that depend upon them. This study has demonstrated the ability to produce a highly detailed (both spatially and thematically) land cover/land use dataset over Russia – by combining existing datasets into a hybrid information system.

agent-based model of agricultural innovation, land-cover change and household inequality: the transition from swidden cultivation to rubber plantations in Laos PDR

Journal Articles & Books
Décembre, 2011
Laos

This article examines the transition from shifting cultivation to rubber production for a study area in northern Laos PDR using an agent-based model of land-cover change. A primary objective of the model was to assess changes in household-level inequality with the transition from shifting cultivation to rubber adoption. A secondary objective was to develop explanations for the rate of rubber adoption in the study area.

Characterizing the Response of Piñon-Juniper Woodlands to Mechanical Restoration Using High-Resolution Satellite Imagery

Journal Articles & Books
Décembre, 2016
États-Unis d'Amérique

In northern New Mexico, complex interactions among climate, land use, and the associated reduction of surface fire in forest and savanna communities facilitated the expansion of piñon-juniper woodlands. Because increasing tree cover can outcompete herbaceous vegetation (e.g., forbs and grasses), woodland expansion resulted in reduced herbaceous cover and increased soil exposure, leading to increased runoff and erosion.

Assessment of the renewable energy-mix and land use trade-off at a regional level: A case study for the Kujawsko–Pomorskie Voivodship

Journal Articles & Books
Décembre, 2013

Renewable energy sources (RES) can undoubtedly contribute to protecting the environment and conserving fossil fuels, as well as enhancing regional and rural development opportunities. However, every energy production process affects the environment and involves the use of land resources. The risks linked to intensified RES use should be adequately taken into consideration in any planning process, as ill-conceived energy policies may adversely impact land and local ecosystems, and lead to increases in public spending.

Using social marketing concepts to promote the integration of systematic conservation plans in land-use planning in South Africa

Journal Articles & Books
Décembre, 2014
Afrique du Sud
Afrique australe

Local land-use planning procedures are increasingly recognized as potentially crucial to ensure off-reserve biodiversity protection. Mainstreaming systematic conservation planning maps in these decision-making procedures has been proposed as a mechanism to achieve this. However, research is lacking on how to convince officials and politicians to change their behaviour and include the maps in their decision-making. Social marketing is a tool commonly used to effect behaviour change in many sectors but its application in conservation is limited.

Recovery of a Subtropical Dry Forest After Abandonment of Different Land Uses

Journal Articles & Books
Décembre, 2006
Porto Rico

We studied the ecological characteristics of 45-50-yr-old subtropical dry forest stands in Puerto Rico that were growing on sites that had been deforested and used intensively for up to 128 yr. The study took place in the Guánica Commonwealth Forest. Our objective was to assess the long-term effects of previous land use on this forest--i.e., its species composition, structure, and functioning. Previous land-use types included houses, farmlands, and charcoal pits. Stands with these land uses were compared with a nearby mature forest stand.

role of irrigation runoff and winter rainfall on dissolved organic carbon loads in an agricultural watershed

Journal Articles & Books
Décembre, 2013

We investigated the role of land use/land cover and agriculture practices on stream dissolved organic carbon (DOC) dynamics in the Willow Slough watershed (WSW) from 2006 to 2008. The 415km² watershed in the northern Central Valley, California is covered by 31% of native vegetation and the remaining 69% of agricultural fields (primarily alfalfa, tomatoes, and rice). Stream discharge and weekly DOC concentrations were measured at eight nested subwatersheds to estimate the DOC loads and yields (loads/area) using the USGS developed stream load estimation model, LOADEST.

Agricultural land-use potential and investment required in Latvia

Conference Papers & Reports
Décembre, 2014
Lettonie

Land as a resource of agricultural production is not fully exploited in Latvia, as approximately 400 thousand ha, according to the data in the identification system of agricultural parcels, were undeclared for the Single Area Payment Scheme in 2012 and, of the agricultural area, 10 % was uncultivated and 2% was overgrown. It creates unique opportunities and a potential for enhancing the management and use of land in the future to increase the output of agricultural products.

Bumble bee colony dynamics: quantifying the importance of land use and floral resources for colony growth and queen production

Journal Articles & Books
Décembre, 2016

Bumble bee (Bombus) species are ecologically and economically important pollinators, and many species are in decline. In this article, we develop a mechanistic model to analyse growth trajectories of Bombus vosnesenskii colonies in relation to floral resources and land use. Queen production increased with floral resources and was higher in semi‐natural areas than on conventional farms. However, the most important parameter for queen production was the colony growth rate per flower, as opposed to the average number of available flowers.

Scientific bases of land use systems: science and practice

Policy Papers & Briefs
Décembre, 2012
Bélarus

In agricultural industry of the Republic of Belarus the problem of increasing the effectiveness of utilization of land resources appears one of the most actual. Annual alienation of agricultural lands and arable fields under housing construction and industrial buildings, roads and other economic object leads to implacable decline of agricultural areas. Absence of new lands, suitable for agricultural use, promotes increase of agricultural productivity by means of intensification of producing process.

Land use and hydroclimatic influences on Faecal Indicator Organisms in two large Scottish catchments: Towards land use-based models as screening tools

Journal Articles & Books
Décembre, 2012

Faecal Coliform (FC) bacteria were used as Faecal Indicator Organisms (FIOs) for assessment of microbiological pollution risk in two large, mixed land use catchments in Scotland. FC counts varied spatially in relation to land use and human population and resulting trophic status. These were highest in catchments with a high cover of improved pasture (which was assumed to be a proxy for cattle and sheep grazing densities) and significant human populations. FC counts were lowest in oligotrophic upland areas, where domesticated animal populations were low.