SABIIA - Sistema Aberto e Integrado de Informação em Agricultura (Sabiia)

Pecci, Francesco; Sassi, Maria.

The CAP reform and the recent EC communication aimed at preparing its Health Check emphasise the need for interventions locally based where agricultural policy integrates with a broader policy for rural areas growth. In this context, the paper investigates the possible different sets policy indicators affecting agricultural productivity at the regional level considering spatial heterogeneity by means of a Mixed Geographically Weighted Regression approach. The analysis is based on a set of policy sensitive indicators selected according to the key component of the CAP reform and referred to a sample of 164 EU-15 regions at NUTS2 level. The methodology adopted, new for the empirical literature on the topic, allows for a more accurate understanding of spatial...

Cost-Effectiveness of Nutrient Management and Buffers: Comparisons of Two Spatial Scenarios

Palavras-chave: CAP reform; Agricultural productivity; Spatial analysis; Cluster analysis; Agricultural and Food Policy; Community/Rural/Urban Development; Research Methods/ Statistical Methods.

Ano: 2008

URL: http://purl.umn.edu/6625

Bonham, John G.; Bosch, Darrell J.; Pease, James W..

Farmers and taxpayers would benefit from more cost-effective agricultural nutrient pollution control measures. The objectives of our study are (1) to assess compliance costs and reductions in phosphorus loadings from implementation of nutrient management and riparian buffers; and (2) to estimate how the spatial scenario, which is the method of representing farms within the watershed, affects estimated compliance costs and reductions in phosphorus deliveries. Estimated compliance costs are quite sensitive to the spatial scenario. Buffers are more cost-effective than nutrient management under one of the two spatial scenarios, whereas nutrient management is more cost-effective under the other scenario. Shifts to more erosive crops reduce the effectiveness...

Tipo: Journal Article

Palavras-chave: Compliance costs; Geographic information systems (GIS); Mathematical programming; Nutrient management; Phosphorus (P); Pollution abatement; Riparian buffers; Spatial analysis; Environmental Economics and Policy; Land Economics/Use; Q12; Q52.

Ano: 2006

URL: http://purl.umn.edu/43746

SPATIAL ANALYSIS OF SUSTAINABLE LIVELIHOOD ENTERPRISES OF UGANDA COTTON PRODUCTION

You, Liangzhi; Chamberlin, Jordan.

Because the conditions for agricultural development vary considerably across space, we need to develop methods that allow us to take such variability into account when evaluating development strategies for particular crops or farming systems. This paper addresses spatially varying characteristics in an evaluation of the potential economic benefits of three cotton development strategies for Uganda: area expansion, productivity improvement, and domestic consumption increase. We begin with a historical review of cotton production in Uganda. We then described the major challenges and opportunities for Ugandan cotton production, including farm-level production constraints. Household-level production data from the 2000 Uganda National Household Survey (UNHS) are...

Agricultural and Economic Convergence in the EU Integration Process: Do Geographical Relationships Matter?

Palavras-chave: Cotton; DREAM; Productivity; Spatial analysis; Development strategy; Development domains; Uganda; Cash crops; Export agriculture; Agricultural research; Crop Production/Industries.

Ano: 2004

URL: http://purl.umn.edu/60327

Sassi, Maria; Pecci, Francesco.

In the light of the reaffirmed importance of agricultural convergence within the integration process, the paper provides a preliminary investigation of the impact of the enlargement from the EU-15 to the EU-27 on agricultural real b-convergence and, with reference to the EU-27, of its relationship with economic catching-up process. The empirical analysis, based on a GWR approach, takes into account the regional spatial interdependences in estimating local parameters of convergence. The approach adopted allows to overcome the contradictory results from OLS estimations and parametric spatial econometric models pointed out by the literature and primarily connected to the existence of no unique convergence rate all over Europe. The analysis is based on a...

Spatial Structure of the Food Industry in Germany

Palavras-chave: Regional convergence; Spatial analysis; GWR approach; International Relations/Trade.

Ano: 2008

URL: http://purl.umn.edu/44459

Gouzhary, Izhar; Margarian, Anne.

Food production and food processing, nowadays, are economic activities in which local and global strategies are interconnected. Moreover the importance of the food industry in total manufacturing is growing; local production systems are competing on the global market by producing specific quality goods or products. Many local regions have attempted to improve their economic situation by encouraging the growth of manufacturing activities. The basic objective of this study to determine and analyze the patterns of food manufacturing and the spatial changes between 2007 and 2001 in the 439 regions in Germany.

HUMAN CAPITAL AND FARM HOUSEHOLDS: A MAP OF MANAGEMENT MODELS IN ITALY

Palavras-chave: Spatial analysis; Food; Germany.; Agribusiness; Agricultural and Food Policy; Community/Rural/Urban Development; Food Consumption/Nutrition/Food Safety; Labor and Human Capital.

Ano: 2010

URL: http://purl.umn.edu/95330

Idda, Lorenzo; Furesi, Roberto; Pulina, Pietro.

This paper is designed to verify empirically the choices that Italian farm households make when investing in human capital. Census data from the National Institute of Statistics (Istat) were used to describe the main structural and organisational characteristics of the farms. Multivariate statistical tools were used to process the information in the database, so that the different types of Italian farm households could be defined and geographically located. The results allowed us to analyse the competence endowment inside the family farm by determining the existence, the types and the strength of the relationships between the characteristics of family farms and certain variables which described the specific local environment and the human capital available...

SPATIAL DEVELOPMENTS OF HUNGARIAN AGRICULTURE IN THE TRANSITION: THE CASE OF CROP PRODUCTION

Palavras-chave: Human capital; Household farms; Agricultural labour; Spatial analysis; Agribusiness; Community/Rural/Urban Development; Labor and Human Capital.

Ano: 2009

URL: http://purl.umn.edu/57415

Ferto, Imre.

The paper investigates spatial changes in cultivation and land use of wheat, maize and oilseed in Hungarian agriculture using different methods to measure these changes. The results suggest that spatial structure of crop productions has remained fairly stable during analysed period. The spatial concentration increased significantly for wheat and maize production and maize land use, whilst the changes were not significant for other cases. Estimates confirm the presence of spatial autocorrelation for all cases. The degree of spatial autocorrelation has no unambiguous pattern over time, except for maize production. Finally, we have not found significant relationship measured by PSE index between agricultural support and spatial concentration, but estimates...

Measuring Ecosystem Service Benefits: The Use of Landscape Analysis to Evaluate Environmental Trades and Compensation

Palavras-chave: Agricultural production; Land use; Spatial analysis; Hungary; Agribusiness; Community/Rural/Urban Development; Crop Production/Industries; International Development; Land Economics/Use; Q13; Q18.

Ano: 2007

URL: http://purl.umn.edu/90871

Boyd, James; Wainger, Lisa.

Ecosystem compensation and exchange programs require benefit analysis in order to guarantee that compensation or trades preserve the social benefits lost when ecosystems are destroyed or degraded. This study derives, applies, and critiques a set of ecosystem benefit indicators (EBIs). Organized around the concept of ecosystem services and basic valuation principles we show how GIS mappings of the physical and social landscape can improve understanding of the ecosystem benefits arising from specific ecosystems. The indicator system focuses on landscape factors that limit or enhance an ecosystem's ability to provide services and that limit or enhance the expected value of those services. The analysis yields an organized, descriptive, and numerical depiction...

SPATIAL ANALYSIS OF SOIL FERTILITY MANAGEMENT USING INTEGRATED HOUSEHOLD AND GIS DATA FROM SMALLHOLDER KENYAN FARMS

Palavras-chave: Ecosystem valuation; Wetlands; Spatial analysis; Landscape analysis; Environmental Economics and Policy; Q0; Q3.

Ano: 2003

URL: http://purl.umn.edu/10738

Staal, Steven J.; Romney, D.; Baltenweck, Isabelle; Waithaka, Michael M.; Muriuki, H.; Njoroge, L..

Although soil fertility is recognized as a primary constraint to agricultural production in developing countries, use of fertilizer in Sub-Saharan Africa is declining. Smallholder farmers still rely heavily on livestock manure for soil fertility management. To explore the determinants of soil fertility management practices, including both the use of cattle manure and inorganic fertilizer, data are used from a sample of 3,330 geo-referenced farm households across Central and Western Kenya. A bivariate probit model is applied to jointly examine the use of the two technologies. Particular attention is given to measures of location related to market access and agroclimate, which in the adoption literature have typically been addressed using crude proxies....

District-level Spatial Analysis of Migration Flows in Ghana: Determinants and Implications for Policy

Palavras-chave: Spatial analysis; Soil fertility; Market access; Technology adoption.; Farm Management; Land Economics/Use; Q12; Q16.

Ano: 2003

URL: http://purl.umn.edu/25903

Tsegai, Daniel W.; Le, Quang Bao.

The present study investigates the determinants of inter-district migration flows over the 1995-2000 period in Ghana. A combination of socio-economic, natural and spatial ‘district-level’ attributes are considered as potential variables explaining the direction of migration flows. In addition to the ‘net’ migration model, ‘in’ and ‘out’ migration models are also employed within the context of the gravity model. Results in the three models consistently show that people move out of districts with less employment and choose districts with high employment rate as destinations. While shorter distance to roads encourages out-migration, districts with better water access seem to attract migrants. Generally, people move out of predominantly agrarian districts to...

Scientific instruments for climate change adaptation: estimating and optimizing the efficiency of ecosystem service provision

Palavras-chave: Gross migration; Net migration; Inter-district migration flows; Spatial analysis; Ghana; Africa; Community/Rural/Urban Development; Labor and Human Capital.

Ano: 2010

URL: http://purl.umn.edu/98131

Villa, Ferdinando; Bagstad, Kenneth J.; Johnson, Gary W.; Voigt, Brian.

Adaptation to the consequences of climate change can depend on efficient use of ecosystem services (ES), i.e. a better use of natural services through management of the way in which they are delivered to society. While much discussion focuses on reducing consumption and increasing production of services, a lack of scientific instruments has so far prevented other mechanisms to improve ecosystem services efficiency from being addressed systematically as an adaptation strategy. This paper describes new methodologies for assessing ecosystem services and quantifying their values to humans, highlighting the role of ecosystem service flow analysis in optimizing the efficiency of ES provision.

Tipo: Journal Article

Palavras-chave: Ecosystem services; Flow analysis; Bayesian modeling; Spatial analysis; Environmental Economics and Policy; Q01; Q54; Q55; Q57.

Ano: 2011

URL: http://purl.umn.edu/117618

Estimating Travel Cost Model: Spatial Approach

Kim, Seung Gyu; Bowker, James Michael; Cho, Seong-Hoon; Lambert, Dayton M.; English, Donald B.K.; Starbuck, C. Meghan.

Local-scale spatial variation in diversity of social wasps in an Amazonian rain forest in Caxiuanã, Pará, Brazil (Hymenoptera, Vespidae, Polistinae)

Palavras-chave: Travel cost model; Spatial analysis; Environmental Economics and Policy.

Ano: 2010

URL: http://purl.umn.edu/61774

Rev. Bras. entomol.

Silveira,Orlando Tobias; Silva,Suzanna de Sousa; Pereira,Jorge Luis Gavina; Tavares,Ingrid da Silva.

Polistine wasps are important in Neotropical ecosystems due to their ubiquity and diversity. Inventories have not adequately considered spatial attributes of collected specimens. Spatial data on biodiversity are important for study and mitigation of anthropogenic impacts over natural ecosystems and for protecting species. We described and analyzed local-scale spatial patterns of collecting records of wasp species, as well as spatial variation of diversity descriptors in a 2500-hectare area of an Amazon forest in Brazil. Rare species comprised the largest fraction of the fauna. Close range spatial effects were detected for most of the more common species, with clustering of presence-data at short distances. Larger spatial lag effects could also be...

Spatial evaluation of larvae of Culicidae (Diptera) from different breeding sites: application of a geospatial method and implications for vector control

Palavras-chave: Neotropical wasps; Polistine faunas; Spatial analysis; Biodiversity; Forest habitats.

Ano: 2012

URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0085-56262012000300011

Rev. Bras. entomol.

Piovezan,Rafael; Azevedo,Thiago Salomão de; Von Zuben,Cláudio José.

Spatial evaluation of Culicidae (Diptera) larvae from different breeding sites: application of a geospatial method and implications for vector control. This study investigates the spatial distribution of urban Culicidae and informs entomological monitoring of species that use artificial containers as larval habitats. Collections of mosquito larvae were conducted in the São Paulo State municipality of Santa Bárbara d' Oeste between 2004 and 2006 during house-to-house visits. A total of 1,891 samples and nine different species were sampled. Species distribution was assessed using the kriging statistical method by extrapolating municipal administrative divisions. The sampling method followed the norms of the municipal health services of the Ministry of Health...

Spatial distribution of Culicidae (Diptera) larvae, and its implications for Public Health, in five areas of the Atlantic Forest biome, State of São Paulo, Brazil

Palavras-chave: Aedes aegypti; Dengue; Mosquitoes; Spatial analysis; Vector control.

Ano: 2012

URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0085-56262012000300016

Rev. Bras. entomol.

Piovezan,Rafael; Acorinthe,João Paulo Oliveira; Souza,Jonas Henrique Teixeira de; Visockas,Alexandre; Azevedo,Thiago Salomão de; Zuben,Cláudio José Von.

ABSTRACT In view of the adaptive ability of mosquitoes and their role in the transport of infective agents, entomological surveys undertaken in transitional environments are very important for the determination of the risk they represent for Public Health. Among the principal vectors of the infectious agents involved in the occurrence of important arboviruses, such as dengue, for example, are the Culicidae-insects capable of installing themselves in the urban nuclei, which exist within areas containing vestigial forests. This present study conducted a survey of mosquito species by means of traps to catch their larvae installed in five rural areas within the Atlantic Forest domain and containing its vestigial vegetation in the municipality of Santa Bárbara...

Climate change and plant diseases

Palavras-chave: Aedes aegypti; Aedes albopictus; Dengue; Entomological surveillance; Spatial analysis.

Ano: 2017

URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0085-56262017000200123

Scientia Agricola

Ghini,Raquel; Hamada,Emília; Bettiol,Wagner.

Human activities are altering greenhouse gas concentrations in the atmosphere and causing global climate change. In the near future, there will certainly be changes in the Brazilian phytosanitary scenario attributed to global climate change. The impacts of climate change can be positive, negative or neutral, since these changes can decrease, increase or have no impact on diseases, depending on each region or period. These impacts will also be observed on plants and other organisms as well as on other agroecosystem components. However, these impacts are not easily determined, and consequently, specialists from several areas must go beyond their disciplinary boundaries and placing the climate change impacts in a broader context. This review focuses on the...

Identification of priority areas for landscape connectivity maintenance in the Xingu Area of Endemism in Brazilian Amazonia

Palavras-chave: CO2; Global climate change; Global warming; Spatial analysis; Control.

Ano: 2008

URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0103-90162008000700015

Acta Amazonica

CASTRO,Rodrigo Baia; PEREIRA,Jorge Luis Gavina; SATURNINO,Regiane; MONTEIRO,Paula Sueli Duarte; ALBERNAZ,Ana Luisa Kerti Mangabeira.

ABSTRACT Forest fragmentation has been intense in the eastern Amazon region, which has negatively affected wildlife populations. The speed of deforestation in this region underscores the urgent need to understand the effects of such changes on populations of endemic species, and to implement measures for ecosystem conservation. We analyzed the extent to which fragmented forests are still connected in the Xingu Area of Endemism, in the eastern Brazilian Amazon, and assigned conservation priority to fragments most important for connectivity maintenance. We structurally classified the Xingu landscape using the Morphological Spatial Pattern Analysis and ranked each fragment according to its importance using an Index of Connectivity. Our data revealed important...

Milk production systems in Southern Brazil

Palavras-chave: Functional connectivity; Spatial analysis; Integral index of connectivity.

Ano: 2020

URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0044-59672020000100068

Anais da ABC (AABC)

TELLES,TIAGO S.; BACCHI,MATHEUS D.; COSTA,GUSTAVO V. DA; SCHUNTZEMBERGER,AMANDA M.S..

Abstract The aim of this study was to verify the dynamics of milk production in Southern Brazil, analyzing the spatial distribution, evolution and structure of bovine milk production systems in the dairy-specialized microregions. To this end, annual data from 2000 to 2015 are drawn from the Municipal Livestock Survey, reported by the Instituto Brasileiro de Geografia e Estatística, and the Programa Nacional de Fortalecimento da Agricultura Familiar, reported by the Banco Central do Brasil. Location quotient analyses, principal component analyses and clustering analyses are applied. Results of the location quotient analysis indicate that, of the 94 microregions in Southern Brazil, 36 are specialized in milk production. Two principal components were...

Spatial distribution of Canola culture in the State of Paraná (Brazil) between the agricultural years of 2005 and 2009

Palavras-chave: Animal production; Spatial analysis; Agricultural economics; Regional development.

Ano: 2020

URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0001-37652020000101201

Ciencia e Investigación Agraria

Costa Wrublack,Suzana; Prudente,Victor H.R.; Mercante,Erivelto; Machado Coelho,Sílvia R..

S.C. Wrublack, V.H.R. Prudente, E. Mercante, and S.R.M Coelho. 2013. Spatial distribution of Canola culture in the State of Paraná (Brazil) between the agricultural years of 2005 and 2009. Cien. Inv. Agr. 40(3): 513-521. There are a number of crops that are viable for small farms. To increase our knowledge of the occurrence of canola cultivation in the State of Paraná, the present study aimed to identify the areas sown with canola (ha) and to examine canola production (t) during the growing seasons of 2005 to 2009. The methodology involved a literature review and analysis of spatial data from the Secretaria da Agricultura e do Abastecimento do Paraná (SEAB/PR). We used the software ArcGis 9.3 for elaboration of thematic maps of variables as well as the...

Tipo: Journal article

Palavras-chave: Spatial analysis; Spatial correlation; Statistic for areas; Vegetation cover.

Ano: 2013

URL: http://www.scielo.cl/scielo.php?script=sci_arttext&pid=S0718-16202013000300005

Inequalities in the spatial concentration of agricultural crops among the micro- and mesoregions of Minas Gerais, Brazil

Ciência Rural

Rodrigues,Erica Costa; Tavares,Ricardo; Meireles,Adriana Lúcia.

ABSTRACT: The present research aimed to map and estimate the spatial autocorrelation of agricultural crops of coffee, corn, soybeans, sugarcane and beans in the state of Minas Gerais and analyzed in the period from 2011 to 2015. The planted area data were obtained of the Systematic Survey of Agricultural Production - IBGE. The Exploratory Spatial Data Analysis model was used to calculate spatial autocorrelation using the Global and Local Moran Index. Significant spatial self-correction was reported in all studied cultures (P-value <0.05). The regions with the highest concentration of planted area are located in the western portion of the state. The least significant planting regions were the municipalities located in the Jequitinhonha and Vale do Mucuri...