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Issuescobertura do soloLandLibrary Resource
There are 2, 240 content items of different types and languages related to cobertura do solo on the Land Portal.

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Establishing turf grass increases soil greenhouse gas emissions in peri-urban environments

Journal Articles & Books
Dezembro, 2016
Global

Urbanization is becoming increasingly important in terms of climate change and ecosystem functionality worldwide. We are only beginning to understand how the processes of urbanization influence ecosystem dynamics and how peri-urban environments contribute to climate change. Brisbane in South East Queensland (SEQ) currently has the most extensive urban sprawl of all Australian cities. This leads to substantial land use changes in urban and peri-urban environments and the subsequent gaseous emissions from soils are to date neglected for IPCC climate change estimations.

Using information on ecosystem services in Nepal to inform biodiversity conservation and local to national decision-making

Journal Articles & Books
Dezembro, 2016
Nepal

Policy-makers are paying increasing attention to ecosystem services, given improved understanding that they underpin human well-being, and following their integration within the Aichi Targets of the Convention on Biological Diversity. Decision-makers need information on trends in biodiversity and ecosystem services but tools for assessing the latter are often expensive, technically demanding and ignore the local context.

Paired-site approach for studying soil organic carbon dynamics in a Mediterranean semiarid environment

Journal Articles & Books
Dezembro, 2012

This work investigated the effects of land cover and land-use change (LUC) on the ability of a soil to store carbon (C) and reduce carbon dioxide (CO₂) emissions, in a Mediterranean area. Using a paired-site approach, we estimated the effect of land-cover change on the C stock from 1972 to 2008 in a natural reserve (Grotta di Santa Ninfa) in western Sicily. We selected 15 paired sites representative of five LUCs.

Modelling vascular plant diversity at the landscape scale using systematic samples

Journal Articles & Books
Dezembro, 2008
Suíça
Europa

We predict fine-scale species richness patterns at large spatial extents by linking a systematic sample of vascular plants with a multitude of independent environmental descriptors. Switzerland, covering 41,244 km² in central Europe. Vascular plant species data were collected along transects of 2500-m length within 1-km² quadrats on a systematic national grid (n = 354), using a standardized assessment method. Generalized linear models (GLM) were used to correlate species richness of vascular plants per transect (SRt) with three sets of variables: topography, environment and land cover.

Assessment of Beetle and Bug Diversity in Extensively Managed Cattle Farms of Varying Cattle Density, Sward Height, and Surrounding Land Use

Journal Articles & Books
Dezembro, 2015

Livestock that is extensively managed can have higher diversity and abundance of insects in comparison to intensively managed livestock, although data are more equivocal within a gradient of extensively managed pastures. Additionally, biodiversity on farms is vulnerable to degradation of the surrounding landscape and changing patterns of land use. We monitored Coleoptera and Hemiptera on grass-fed cattle farms in North Carolina to determine effects of cattle and land use patterns on biodiversity.

Cashew Orchards Conserve the Potential for Forest Recovery

Journal Articles & Books
Dezembro, 2015

Outside of agroforestry disciplines, “orchards” and “forests” are usually studied through different fields of knowledge or are mired in conflicting views. Our study aimed to provide preliminary information on regeneration in cashew orchards by studying the effect of previous land cover, the surrounding landscape, and orchards’ age on the density of species and number of plants. We followed linear transects in orchards planted in areas previously covered by savannah and forest.

Co-kriging for modeling shallow groundwater level changes in consideration of land use/land cover pattern

Journal Articles & Books
Dezembro, 2013
Japão

This study aimed at clarifying the relationship between the dynamics of land use/land cover (LULC) changes and decline in the groundwater levels, and specifying an LULC category strongly affecting such decline in a Quaternary sedimentary basin. Groundwater level data recorded at 26 observation wells for a 14-year period in the Kumamoto Plain, central Kyushu, southwest Japan, were used for the analysis. The general trends of LULC were detected by a satellite image classification technique and surface spline method, which highlighted the decreases in groundwater-recharge materials.

Controls of dissolved organic matter quality: evidence from a large‐scale boreal lake survey

Journal Articles & Books
Dezembro, 2014
Suécia

Inland waters transport large amounts of dissolved organic matter (DOM) from terrestrial environments to the oceans, but DOM also reacts en route, with substantial water column losses by mineralization and sedimentation. For DOM transformations along the aquatic continuum, lakes play an important role as they retain waters in the landscape allowing for more time to alter DOM. We know DOM losses are significant at the global scale, yet little is known about how the reactivity of DOM varies across landscapes and climates. DOM reactivity is inherently linked to its chemical composition.

Multinomial regression for analyzing macroinvertebrate assemblage composition data

Journal Articles & Books
Dezembro, 2012
Estados Unidos

Macroinvertebrate species composition data are often expressed as proportional abundances when assessing water-quality conditions or responses to disturbance. Proportional abundances represent the probability of belonging to one of many mutually exclusive and exhaustive groups (taxa). Proportional abundances have some unique properties that must be considered when analyzing these data: 1) the probabilities of group membership must sum to 1 and 2) a change in any 1 group affects all other groups.

definition of potential infiltration areas in Guaratinguetá watershed, Paraíba do Sul Basin, Southeastern Brazil: an integrated approach using physical and land-use elements

Journal Articles & Books
Dezembro, 2012

This work describes the methodological approach used for mapping the potential infiltration areas of the Guaratinguetá watershed (160 km2), situated in Southeastern Brazil. The method is considered a qualitative approach, which takes into account thematic maps (geology, pedology, geomorphology, and land use/land cover) and the precipitation spatial distribution. A group of experts in Earth Sciences and Geotechnical Engineering has applied an infiltration potential scale factor that ranges from 5 (highest influence) to 1 (lowest influence).

Land use and land cover change in the Colombian Andes: dynamics and future scenarios

Journal Articles & Books
Dezembro, 2013

Land use and land cover changes (LUCC) are recognized as one of the most relevant drivers of biodiversity loss in ecosystems. Through the analysis of satellite images, this article quantifies the LUCC that occurred between 1985 and 2008 in the Colombian Andes. Four submodels of changes were analyzed: deforestation, crop intensification, conversion to pastures, and abandonment.

Remote Sensing and GIS Approach for Delineation of Groundwater Potential and Groundwater Quality Zones of Western Doon Valley, Uttarakhand, India

Journal Articles & Books
Dezembro, 2013
Índia

Groundwater exploration in the Western Doon valley has been carried out to delineate the groundwater potential and groundwater quality zones suitable for domestic purposes based on the integrated use of Remote Sensing and Geographical Information Systems (GIS). The Western Doon Valley, occupying broad synclinal troughs in the evolving fold-thrust system of sub-Himalaya, which is filled by post-Siwalik fluvial and debris flow deposits in the late Quaternary-Holocene.