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Registros recuperados: 14
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A Classification of Landscape Services to Support Local Landscape Planning Ecology and Society
Van Eetvelde, Veerle; Ghent University, Department of Geography; veerle.vaneetvelde@UGent.be.
The ecosystem services approach has been proven successful to measure the contributions of nature and greenery to human well-being. Ecosystems have an effect on quality of life, but landscapes also, as a broader concept, may contribute to people’s well-being. The concept of landscape services, compared to ecosystem services, involves the social dimension of landscape and the spatial pattern resulting from both natural and human processes in the provision of benefits for human-well being. Our aim is to develop a classification for landscape services. The proposed typology of services is built on the Common International Classification of Ecosystem Services (CICES) and on a critical review of existing literature on human well-being dimensions,...
Tipo: Peer-Reviewed Reports Palavras-chave: Cultural services; Ecosystem services; Holism; Landscape services; Spatial pattern; Transdiciplinarity.
Ano: 2014
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Biophysical and sociocultural factors underlying spatial trade-offs of ecosystem services in semiarid watersheds Ecology and Society
Harrison, Paula A; Environmental Change Institute, University of Oxford; Paula.Harrison@ouce.ox.ac.uk; Berry, Pam; Environmental Change Institute, University of Oxford; pam.berry@eci.ox.ac.uk.
Biophysical and social systems are linked to form social-ecological systems whose sustainability depends on their capacity to absorb uncertainty and cope with disturbances. In this study, we explored the key biophysical and socio-cultural factors underlying ecosystem service supply in two semiarid watersheds of southern Spain. These included variables associated with the role that freshwater flows and biodiversity play in securing the system’s capacity to sustain essential ecosystem services and their relationship with social demand for services, local water governance, and land-use intensification. Our results reveal the importance of considering the invisible dimensions of water and biodiversity, i.e. green freshwater flows and trait-based...
Tipo: Peer-Reviewed Reports Palavras-chave: Demand; Freshwater flow; Interaction; Irrigation community; Land-use intensification; Social-ecological system; Social preference; Spatial pattern; Trait-based indicator.
Ano: 2015
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Characteristics of Regional Differentiation of Urbanization Development in Anhui Province AgEcon
Shi, Fei; Chu, Jin-long; Gu, Kang-kang.
On the basis of connotation of urbanization, by using SPSS factor analysis and cluster analysis, we establish index system of urbanization development level and conduct quantitative analysis on development level of urbanization in 17 prefecture-level city of Anhui Province, in order to find out the differentiation pattern of regional space of urbanization development in Anhui Province based on these. The results show that Anhui’s difference of urbanization gradient is prominent. Classification of three clusters shows that the pattern of status quo of urbanization development in Anhui Province is “dual-nucleus” and “two-stretches”; classification of five clusters show that the pattern of status quo of urbanization development in Anhui Province is...
Tipo: Journal Article Palavras-chave: Urbanization level; Regional differentiation; Spatial pattern; Anhui Province; China; Agribusiness.
Ano: 2011 URL: http://purl.umn.edu/113496
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Comparação do padrão da distribuição espacial em escalas diferentes de espécies nativas do cerrado, em Brasília, DF Rev. Bras. Bot.
HAY,JOHN D.; BIZERRIL,MARCELO X.; CALOURO,ARMANDO M.; COSTA,ELIZABETH M.N.; FERREIRA,ANAMARIA A.; GASTAL,MARIA L.A.; GOES JUNIOR,CÍCERO D.; MANZAN,DAGOBERTO J.; MARTINS,CLÁUDIO R.; MONTEIRO,JOICE M.G.; OLIVEIRA,SÉRGIO A.; RODRIGUES,MARCELO C.M.; SEYFFARTH,JOÃO A.S.; WALTER,BRUNO M.T..
O padrão de agrupamento espacial de três espécies arbóreas, Caryocar brasiliense, Pterodon pubescens e Sclerolobium paniculatum, e duas espécies de palmeiras, Syagrus comosa e S. flexuosa, nativas do cerrado, foi investigado usando três métodos de variância entre parcelas. Os dados foram coletados em uma área de cerrado sensu strictu da Fazenda Água Limpa da Universidade de Brasília, em Brasília, DF, em 128 parcelas contíguas de 5 x 8 m cada. Em cada parcela, foram procurados todos os indivíduos das espécies, anotando o número encontrado e suas alturas. Os dados foram tabelados e analisados usando as técnicas de variância entre blocos de parcelas (BQV), variância móvel entre blocos de parcelas (TTLQV) e variância entre parcelas pareadas (PQV), tanto para...
Tipo: Info:eu-repo/semantics/article Palavras-chave: Cerrado; Spatial pattern; Quadrat-variance methods.
Ano: 2000 URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0100-84042000000300008
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Disease progress of soybean bud blight and spatial pattern of diseased plants. Repositório Alice
ALMEIDA, A.M.R.; BERGAMIN FILHO, A.; AMORIM, L..
Fourteen epidemics of soybean bud blight, caused by the tobacco streak virus, were monitored in two soybean cultivars ('IAC-4' and 'FT-10') for two years (1987 and 1988) at Arapoti County, state of Parana, southern Brazil. Disease incidence, based on different sowing dates, were analyzed for statistical fitness in several growth models. Ten epidemics were better described by the monomolecular model, while four epidemics were better described by the Gompertz model. The highest final level of disease incidence was y((f))= 0.6 in 1987 and 0.9 in 1988. There were no significant differences between the cultivars in relation to susceptibility. Early-crops always presented more disease than late-crops. The spatial patterns of diseased plants also changed...
Tipo: Artigo em periódico indexado (ALICE) Palavras-chave: Soja; Fitopatologia; Doenca; Virus; Epidemiologia; Queima do Broto; Distribuicao espacial; Desenvolvimento temporal; Brasil; Soybean; Phytopathology; Disease; Epidemiology; Bud blight; Spatial pattern; Temporal development; Brazil.
Ano: 1994 URL: http://www.alice.cnptia.embrapa.br/handle/doc/458775
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From seasonal patterns to a reference situation in an estuarine environment: Example of the small fish and shrimp fauna of the Gironde estuary (SW France) ArchiMer
Lobry, Jeremy; Lepage, Mario; Rochard, Eric.
Detecting changes in animal communities suggests that a reference situation exists. It is a particularly difficult task in estuarine environments that are complex and fluctuate with time. Effects of human pressures are difficult to assess due to the scarcity or even the lack of evaluation and monitoring systems. In order to detect anomalies in the functioning of the system and to identify effects of perturbations upon populations and communities, it is necessary to analyse the dynamics in order to infer a reference state. This work aims to describe an approach based on K-Tab analyses and allows to define an average situation called "compromise" which is then compared to a single year of data. In this situation, the Gironde estuary, which has been monitored...
Tipo: Text Palavras-chave: Fish and shrimp assemblages dynamics; Gironde estuary; Correspondence analysis; Spatial pattern; STATIS.
Ano: 2006 URL: http://archimer.ifremer.fr/doc/2006/publication-1989.pdf
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Global-Scale Patterns of Forest Fragmentation Ecology and Society
Riitters, Kurt; U.S. Forest Service; kriitters@fs.fed.us; Wickham, James D; U.S. Environmental Protection Agency, National Exposure Research Laboratory; wickham.james@epa.gov; O'Neill, Robert; ; eoneill@attglobal.net; Jones, K. Bruce; U.S. Environmental Protection Agency, National Exposure Research Laboratory; jones.bruce@epa.gov; Smith, Elizabeth; U.S. Environmental Protection Agency, National Exposure Research Laboratory; smith.betsy@epa.gov.
We report an analysis of forest fragmentation based on 1-km resolution land-cover maps for the globe. Measurements in analysis windows from 81 km 2 (9 x 9 pixels, “small” scale) to 59,049 km 2 (243 x 243 pixels, “large” scale) were used to characterize the fragmentation around each forested pixel. We identified six categories of fragmentation (interior, perforated, edge, transitional, patch, and undetermined) from the amount of forest and its occurrence as adjacent forest pixels. Interior forest exists only at relatively small scales; at larger scales, forests are dominated by edge and patch conditions. At the smallest scale, there were significant differences in fragmentation among continents; within continents,...
Tipo: Peer-Reviewed Reports Palavras-chave: Biogeography; Edge effect; Forest fragmentation; Geographic information systems; Global patterns; Land-cover map; Landscape ecology; Modeling; Perforated forest; Remote sensing; Satellite imagery; Spatial pattern.
Ano: 2000
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Hydro-plankton characteristics and their relationship with sardine and anchovy distributions on the French shelf of the Bay of Biscay ArchiMer
Petitgas, Pierre; Masse, Jacques; Bourriau, Paul; Beillois, Pierre; Bergeron, Jean-pierre; Delmas, Daniel; Herbland, Alain; Koueta, Noussithe; Froidefond, Jean-marie; Santos, Maria.
The spatial pattern in hydro-plankton and fish distributions and their relationship were analysed based on the spring 2000 fisheries acoustic survey. The importance of this survey was that it was a multi-disciplinary platform which collected an extensive set of parameters in the hydro-plankton leading to a potentially finer description of hydro-plankton conditions and fish habitats. More than 50 variables were measured on a grid of stations, in four compartments of the ecosystem: hydrology, nutrients, primary producers and meso-zooplankton. First, a joint analysis of all hydro-plankton compartments was performed using multiple factor analysis (MFA). The method was used to estimate a compromise factorial space common to all compartments in which the...
Tipo: Text Palavras-chave: Fish environment relationship; Hydro plankton; Habitats; Multiple factor analysis; Spatial pattern.
Ano: 2006 URL: http://archimer.ifremer.fr/doc/2006/publication-3961.pdf
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Lack of Agreement on Fragmentation Metrics Blurs Correspondence between Fragmentation Experiments and Predicted Effects Ecology and Society
Bogaert, Jan; University of Antwerp; jan.bogaert@ua.ac.be.
The direct correspondence between landscape fragmentation and its effects is still the subject of debate. Many widely accepted hypotheses are not supported by experiments. The issue of fragmentation measurement is addressed here. To predict the effects of fragmentation, it is essential to quantify the pattern of fragmentation. Despite the increased use of spatial analysis and available measures, experts have not yet reached an agreement on how to measure patterns of fragmented landscapes and, thus, unambiguous translation of experimental findings into conservation or management guidelines is hampered.
Tipo: Peer-Reviewed Reports Palavras-chave: Fragmentation; Landscape metric; Spatial pattern.
Ano: 2003
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Slope variation and population structure of tree species from different ecological groups in South Brazil Anais da ABC (AABC)
Bianchini,Edmilson; Garcia,Cristina C.; Pimenta,José A.; Torezan,José M.D..
Size structure and spatial arrangement of 13 abundant tree species were determined in a riparian forest fragment inParaná State, South Brazil (23"16'S and 51"01'W). The studied species were Aspidosperma polyneuron Müll. Arg., Astronium graveolens Jacq. and Gallesia integrifolia (Spreng) Harms (emergent species); Alseis floribunda Schott, Ruprechtia laxiflora Meisn. and Bougainvillea spectabilis Willd. (shade-intolerant canopy species); Machaerium paraguariense Hassl, Myroxylum peruiferum L. and Chrysophyllum gonocarpum (Mart. & Eichler ex Miq.) Engl. (shade-tolerant canopy species); Sorocea bonplandii (Baill.) Bürger, Trichilia casaretti C. Dc, Trichilia catigua A. Juss. and Actinostemon concolor (Spreng.) Müll. Arg. (understory small trees...
Tipo: Info:eu-repo/semantics/article Palavras-chave: Diameter structure; Ecological groups; Forest fragment; Seasonal semideciduous forest; Spatial pattern.
Ano: 2010 URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0001-37652010000300012
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Spatial and temporal interaction between sediment and microphytobenthos in a temperate estuarine macro-intertidal bay ArchiMer
Orvain, Francis; Lefebvre, Sebastien; Montepini, J.; Sebire, M.; Gangnery, Aline; Sylvand, B..
Intertidal flats of the estuarine macro-intertidal Baie des Veys (France) were investigated to identify spatial features of sediment and microphytobenthos (MPB) in April 2003. Gradients occurred within the domain, and patches were identified close to vegetated areas or within the oyster-farming areas where calm physical conditions and biodeposition altered the sediment and MPB landscapes. Spatial patterns of chl a content were explained primarily by the influence of sediment features, while bed elevation and compaction brought only minor insights into MPB distribution regulation. The smaller size of MPB patches compared to silt patches revealed the interplay between physical structure defining the sediment landscape, the biotic patches that they contain,...
Tipo: Text Palavras-chave: Benthic diatoms; Benthos; Coastal ecosystems; Intertidal flats; Baie des Veys; Normandie; Spatial pattern; Geostatistics; Kriging.
Ano: 2012 URL: http://archimer.ifremer.fr/doc/00088/19945/17598.pdf
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Spatial and temporal patterns of soil water content in an agroecological production system Scientia Agricola
Neves,Hugo Hermsdorff das; Mata,Maria Gabriela Ferreira da; Guerra,José Guilherme Marinho; Carvalho,Daniel Fonseca de; Wendroth,Ole Otto; Ceddia,Marcos Bacis.
ABSTRACT: Spatial and temporal patterns of soil water content (SWC) can not only improve the understanding of soil water processes but also the water management in the field. The spatial distribution of SWC depends on the spatial variability of soil attributes, vegetation and landscape features. The aim of this study was to evaluate: i) the spatial and temporal variability pattern in an agroecological system; ii) understand the factors affecting the spatial variations of SWC; iii) determine if wet and dry zones conserve their spatial position; iv) evaluate the possibility of using this information to reduce the number of SWC measurements. The experiment was carried out in an area of 2,502 m2, where a regular grid with spacing of 10 m was laid out. At each...
Tipo: Info:eu-repo/semantics/article Palavras-chave: TDR; Time series; Spatial pattern; Temporal pattern; Agroecology.
Ano: 2017 URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0103-90162017000500383
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Spatial clustering of twig-nesting ants corresponds with metacommunity assembly processes Ecología austral
Livingston,George; Jackson,Doug.
The metacommunity concept and associated models are poorly integrated with the field of landscape ecology. One way to promote synthesis is to identify situations in which specific metacommunity models correspond to specific and explicit spatial patterns in the distribution of communities across space. We explore this possible link using mapped communities of twig-nesting ants on coffee plants from a plantation in southern Mexico. Previous work has shown species sorting to predominate among common species and mass effects among rare species. We test whether differential patterns of spatial clustering among dominant and subdominant ant species correspond to a species sorting and mass effects model, respectively. We find significant clustering among...
Tipo: Info:eu-repo/semantics/other Palavras-chave: Spatial pattern; Clustering; Dispersal; Twig-nesting ants; Tropical agroecosystem; Landscape.
Ano: 2014 URL: http://www.scielo.org.ar/scielo.php?script=sci_arttext&pid=S1667-782X2014000300010
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The role of urban green spaces in air quality IPB - Escola Superior Agrária
Feliciano, Manuel; Fernandes, A.; Nunes, Luís; Nunes, T.; Alves, P.; Gonçalves, Artur; Cortez, José Paulo; Dias, L.G..
Tipo: ConferenceObject Palavras-chave: Urban forest; Air quality; Gaseous pollutants; Passive sampling; Spatial pattern.
Ano: 2008 URL: http://hdl.handle.net/10198/5778
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