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Registros recuperados: 7
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Assessing the impact of land-cover changes on ecosystem services: A first step toward integrative planning in Bordeaux, France ArchiMer
Cabral, Pedro; Feger, Clement; Levrel, Harold; Chambolle, Melodie; Basque, Damien.
The quantification and integration of ecosystem services (ES) into urban planning decisions is becoming increasingly important. However, studies that quantify and analyze the impacts in terms of ES changes are still scarce. We analyzed multiple ES provided by the landscape of the Urban Community of Bordeaux (CUB), in France, between 1990 and 2006 as a result of land use and cover change (LUCC) with Corine Land Cover and other open data. These ES were selected with the help of local stakeholders and were calculated using a spatially explicit modeling approach with InVEST and own-produced models. It was found that all ES, except erosion regulation, have decreased as a consequence of LUCC. Results also suggest that LUCC change decisions which do not consider...
Tipo: Text Palavras-chave: Landscape services; Geographical information systems; Spatial planning; Land use and cover change; Corine land cover; Natural capital project.
Ano: 2016 URL: http://archimer.ifremer.fr/doc/00347/45847/45919.pdf
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Assessment of soil loss vulnerability in data-scarce watersheds in southern Brazil Ciência e Agrotecnologia
Steinmetz,Alice Alonzo; Cassalho,Felício; Caldeira,Tamara Leitzke; Oliveira,Vinícius Augusto de; Beskow,Samuel; Timm,Luis Carlos.
ABSTRACT Soil erosion is currently one of the main concerns in agriculture, water resources, soil management and natural hazards studies, mainly due to its economic, environmental and human impacts. This concern is accentuated in developing countries where the hydrological monitoring and proper soil surveys are scarce. Therefore, the use of indirect estimates of soil loss by means of empirical equations stands out. In this context, the present study proposed the assessment of the Revised Universal Soil Loss Equation (RUSLE) with the aid of Geographical Information Systems (GIS) and remote sensing for two agricultural watersheds in southern Rio Grande do Sul - Brazil. Among all RUSLE factors, LS showed the closest patterns to the local when compared to the...
Tipo: Info:eu-repo/semantics/article Palavras-chave: Soil erosion; Revised universal soil loss equation; Geographical information systems; Remote sensing.
Ano: 2018 URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1413-70542018000600575
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Distribution and agroclimatic characterization of potential cultivation regions of physic nut in Mexico PAB
Núñez-Colín,Carlos Alberto; Goytia-Jiménez,María Antonieta.
The purposes of this study were to determine the distribution and climatic patterns of current and future physic nut (Jatropha curcas) cultivation regions in Mexico, and to identify possible locations for in vivo germplasm banks establishment, using geographic information systems. Current climatic data were processed by Floramap software to obtain distribution maps and climatic patterns of regions where wild physic nuts could be found. DIVA-GIS software analyzed current climatic data (Worldclim model) and climatic data generated by CCM3 model to identify current and future physic nut cultivation regions, respectively. The distribution map showed that physic nut was present in most of the tropical and subtropical areas of Mexico, which corresponded to three...
Tipo: Info:eu-repo/semantics/article Palavras-chave: Jatropha curcas; Biofuels; Climate modeling; Geographical information systems; Germplasm collection.
Ano: 2009 URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0100-204X2009000900002
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ECOLOGICAL-ECONOMIC ZONING OF THE CITY OF ALTINÓPOLIS – SP, BRAZIL REA
Crivelenti,Rafael C.; Bueno,Célia R. P.; Pires,José S. R.; Francisco,José; Lessi,Bruno F..
ABSTRACT: Since colonial times, Brazilian land use has been made under an extractivist model at the expense of deforestation, increasing soil and vegetation depletion, stream siltation, as well as loss of biodiversity. An ecological-economic zoning (EEZ) has been taken as feasible alternative to guide public policies aimed at city land-use planning. This study focused on designing an EZZ for the city of Altinópolis, in São Paulo state (Brazil), by means of geographical information systems (GIS). Information and maps delineated six land-use areas, in which 30% covered areas under environmental protection, 45% over areas with groundwater recharge potential, which should be intended to restoration. Furthermore, around 70% of the territory show potential to be...
Tipo: Info:eu-repo/semantics/article Palavras-chave: Geographical information systems; Soil and water preservation; Environmental planning; Land use.
Ano: 2016 URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0100-69162016000601218
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Exposure of Bangladeshi rice farmers to early flood risk International Rice Research Institute
Shankar, B..
p.60-61
Palavras-chave: Farmers; Floods; Natural disasters; Risk assessment; Simulation models; Altitude; Geographical information systems; Precision agriculture; Bangladesh.
Ano: 2003 URL: http://hdl.handle.net/123456789/1273
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Modelling species distributions using regression quantiles ArchiMer
Vaz, Sandrine; Martin, C; Eastwood, P; Ernande, Bruno; Carpentier, Andre; Meaden, G; Coppin, Franck.
1. Species distribution modelling is an important and well-established tool for conservation planning and resource management. Modelling techniques based on central estimates of species responses to environmental factors do not always provide ecologically meaningful estimates of species-environment relationships and are being increasingly questioned. 2. Regression quantiles (RQ) can be used to model the upper bounds of species-environment relationships and thus estimate how the environment is limiting the distribution of a species. The resulting models tend to describe potential rather than actual patterns of species distributions. 3. Model selection based on null hypothesis testing and backward elimination, followed by validation procedures, are...
Tipo: Text Palavras-chave: Marine fish; Limiting factors; Habitat; Geographical information systems; Distribution models.
Ano: 2008 URL: http://archimer.ifremer.fr/doc/2008/publication-3730.pdf
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SysNet Tools: the multiple goal Linear Programming (MGLP) model and maplink International Rice Research Institute
Laborte, A.G.; Roetter, R.; Hoanh, C.T..
v, 31 p. : ill.
Tipo: Technical Report Palavras-chave: Research; Geographical information systems; Land use; Production; Computer software; Linear programming.
Ano: 1999 URL: http://hdl.handle.net/10269/271
Registros recuperados: 7
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