Passar para o conteúdo principal

page search

Issuescobertura do soloLandLibrary Resource
There are 2, 239 content items of different types and languages related to cobertura do solo on the Land Portal.

cobertura do solo

AGROVOC URI:

Displaying 1405 - 1416 of 1964

Land use change and pollinator extinction debt in exurban landscapes

Journal Articles & Books
Dezembro, 2015

For the first time in more than a century, people across the planet are migrating en mass from cities to rural areas. In this process of ‘exurbanisation’ humans are rapidly converting natural and agricultural regions into low‐density housing. Despite the scale of this exurban development and its potential negative impact on biodiversity, little is known about how this specific type of land conversion impacts wild pollinators.

Urbanization, Grassland, and Diet Influence Coyote (Canis latrans) Parasitism Structure

Journal Articles & Books
Dezembro, 2015
Canadá

Land use change can alter the ecological mechanisms that influence infectious disease exposure in animal populations. However, few studies have empirically integrated the environmental, spatial, and dietary patterns of wildlife epidemiology. We investigate how urbanization, habitat type, and dietary behavior are associated with coyote (Canis latrans) parasitism structure along a gradient of rural to urban land cover using multivariate redundancy analyses. Coyote fecal samples were collected in eight urban and six rural sites in Calgary, Alberta, Canada.

Maxent modeling for predicting the potential distribution of medicinal plant, Justicia adhatoda L. in Lesser Himalayan foothills

Journal Articles & Books
Dezembro, 2013
Índia

The population of the medicinal plant, Malabar nut (Justicia adhatoda L.) is shrinking in Dun valley due to habitat fragmentation, invasion by Lantana camara, over-exploitation, and an ever-increasing human population – the most important being the increasing demand on land for agriculture, industries and the urbanization. Predicting potential geographic distribution of the species is important from species and habitat restoration point of view.

The reflection of the solar radiation range in ecosystems on the data of remote sensing of the Earth

Journal Articles & Books
Dezembro, 2015
Rússia
Alemanha

Agricultural lands soil and agrochemical inspection technique in plain regions without relief digital model creation was improved. The technique is based on the differentiated study of influence of shooting ranges by the complicated cluster analysis of light reflection of ecosystems. The possibility of color channels variation in RGB system for the separate consideration of absorption of solar radiation by the soil and vegetable cover has been taken into account.

Modelling Changes in Land Cover Patterns in Mtunzini, South Africa Using Satellite Imagery

Journal Articles & Books
Dezembro, 2014
África do Sul
África austral

Land is the basic resource that is needed by man in order to survive: It provides humans with living space, nutrition and energy resources. The rapid growth of the human population, climate change and pollution on a catastrophic scale has caused the quality of land resources to be compromised. Remote sensing is a useful tool in land cover change detection providing information to decision makers.

Modern influences on chironomid distribution in western Ireland: potential for palaeoenvironmental reconstruction

Journal Articles & Books
Dezembro, 2014
Irlanda

Ireland provides a unique setting for the study of past climates, as its climate is dominated by westerly airflow from the North Atlantic and readily responsive to changes in North Atlantic circulation patterns. Although there has been substantial research on Ireland’s past environments, quantitative palaeolimnological research, especially chironomid-based research, has been lacking. In order to further develop chironomid-based palaeolimnological investigations, a calibration set was constructed to determine the dominant environmental controls on modern chironomids in western Ireland.

Mapping and Identification of Homegardens as a Component of the Trees Outside Forests Using Remote Sensing and Geographic Information System

Journal Articles & Books
Dezembro, 2014
Índia

The homegardens represent an important component of the trees outside forests (TOF) in the rural ecosystem which fulfill a range of subsistence and economic needs besides providing many environmental services. The present work was focused on the identification and mapping of rural homegardens as a component of the trees outside forests in the larger landscape of the three districts—Cachar, Hailakandi and Karimganj, of Barak Valley, Assam, northeast India.

Towards an energy–landscape integrated analysis? Exploring the links between socio-metabolic disturbance and landscape ecology performance (Mallorca, Spain, 1956–2011)

Journal Articles & Books
Dezembro, 2016
Espanha

CONTEXT: The role of agricultural landscapes in biodiversity conservation is an emerging topic in a world experiencing a worrying decrease of species richness. Farm systems may either decrease or increase biological diversity, depending on land-use intensities and management. OBJECTIVES: We present an intermediate disturbance-complexity model (IDC) of cultural landscapes aimed at assessing how different levels of anthropogenic disturbance on ecosystems affect the capacity to host biodiversity depending on the land matrix heterogeneity.

soil moisture assimilation scheme based on the microwave Land Emissivity Model and the Community Land Model

Journal Articles & Books
Dezembro, 2012

Applications of microwave remote-sensing data in land data assimilation are a topic of current interest and importance due to their high temporal and spatial resolution and availability. However, there have been few studies on land surface sub-grid scale heterogeneity and calculating microwave wetland surface emissivity when directly assimilating gridded Advanced Microwave Scanning Radiometer-Earth Observing System (AMSR-E) satellite brightness temperature (BT) data to estimate soil moisture.

Validation of MODIS, MISR, OMI, and CALIPSO aerosol optical thickness using ground-based sunphotometers in Hong Kong

Journal Articles & Books
Dezembro, 2013
Hong Kong

Aerosol observations are essential for understanding the Earth's radiation budget and the complexities of climate change, as they are involved in the backscattering of solar radiation and the formation of cloud condensation nuclei. In Hong Kong, the most direct effect is on air quality. Atmospheric haze caused by the emission of aerosols from industrial and vehicular sources creates visibility lower than 8 km for approximately 20% of the time, having risen at 6% per decade since 1980, but regional emissions are at least as influential as local ones.

Policy impacts on regulating ecosystem services: looking at the implications of 60 years of landscape change on soil erosion prevention in a Mediterranean silvo-pastoral system

Journal Articles & Books
Dezembro, 2016
Portugal

CONTEXT: Policy decisions form a major driver of land use change, with important implications for socially and environmentally susceptible regions. It is well known that there can be major unintended consequences, especially where policies are not tailored to regionally specific contexts. OBJECTIVES: In this paper we assess the implications of 60 years of agricultural policies on soil erosion prevention (SEP) by vegetation, an essential regulating ecosystem service in Mediterranean Europe.

integration of plant phenology and land use data to create a GIS-assisted bioclimatic characterisation of Bavaria, Germany

Journal Articles & Books
Dezembro, 2011
Alemanha

Background: Since phenology is a good bio-indicator of temperature the latter is often used in phenological analyses. However, whilst meteorological data are difficult to interpolate from point measurements at the desired resolution, region-wide digital data, e.g.