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Biblioteca(s): |
Embrapa Agricultura Digital. |
Data corrente: |
21/10/2009 |
Data da última atualização: |
15/01/2020 |
Tipo da produção científica: |
Artigo em Periódico Indexado |
Autoria: |
MACÁRIO, C. G. N.; MEDEIROS, C. B. |
Afiliação: |
CARLA GEOVANA DO NASCIMENTO MACARIO, CNPTIA; CLAUDIA B. MEDEIROS, Unicamp. |
Título: |
A framework for semantic annotation of geospatial data for agriculture. |
Ano de publicação: |
2009 |
Fonte/Imprenta: |
International Journal Metadata, Semantics and Ontologies, v. 4, n. 1/2, p. 118-132, May 2009. |
Idioma: |
Inglês |
Conteúdo: |
Abstract: The Web is a huge repository of geospatial information. Ef?cient retrieval of this information is a key factor in planning and decision-making in many domains, including agriculture. However, standards for data annotation and exchange enable only syntactic interoperability, while semantic heterogeneity presents challenges. This work describes a framework that tackles interoperability problems via semantic annotations, which are based on multiple ontologies. The framework is being developed within a project to support agricultural planning in Brazil. The paper discusses design and implementation issues using a real case study, provides an overview of annotation mechanisms and identi?es requirements for annotating agricultural data. |
Palavras-Chave: |
Agricultural planning; Anotação semântica; Geospatial data; Interoperabilidade; Semantic annotation. |
Thesagro: |
Agricultura. |
Thesaurus Nal: |
Agriculture; Spatial data. |
Categoria do assunto: |
X Pesquisa, Tecnologia e Engenharia |
Marc: |
LEADER 01462naa a2200229 a 4500 001 1572795 005 2020-01-15 008 2009 bl uuuu u00u1 u #d 100 1 $aMACÁRIO, C. G. N. 245 $aA framework for semantic annotation of geospatial data for agriculture.$h[electronic resource] 260 $c2009 520 $aAbstract: The Web is a huge repository of geospatial information. Ef?cient retrieval of this information is a key factor in planning and decision-making in many domains, including agriculture. However, standards for data annotation and exchange enable only syntactic interoperability, while semantic heterogeneity presents challenges. This work describes a framework that tackles interoperability problems via semantic annotations, which are based on multiple ontologies. The framework is being developed within a project to support agricultural planning in Brazil. The paper discusses design and implementation issues using a real case study, provides an overview of annotation mechanisms and identi?es requirements for annotating agricultural data. 650 $aAgriculture 650 $aSpatial data 650 $aAgricultura 653 $aAgricultural planning 653 $aAnotação semântica 653 $aGeospatial data 653 $aInteroperabilidade 653 $aSemantic annotation 700 1 $aMEDEIROS, C. B. 773 $tInternational Journal Metadata, Semantics and Ontologies$gv. 4, n. 1/2, p. 118-132, May 2009.
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Embrapa Agricultura Digital (CNPTIA) |
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Registro Completo
Biblioteca(s): |
Embrapa Solos. |
Data corrente: |
30/11/2020 |
Data da última atualização: |
30/11/2020 |
Tipo da produção científica: |
Capítulo em Livro Técnico-Científico |
Autoria: |
TEIXEIRA, W. G.; VERHEIJEN, F.; MARQUES, J. D. de O. |
Afiliação: |
WENCESLAU GERALDES TEIXEIRA, CNPS; FRANK VERHEIJEN, UNIVERSITY OF AVEIRO; JEAN DALMO DE OLIVEIRA MARQUES, IFAM. |
Título: |
Water holding capacity of biochar and biochar-amended soils. |
Ano de publicação: |
2020 |
Fonte/Imprenta: |
In: MANYÀ, J. J.; GASCÓ, G. (ed.). Biochar as a renewable-based material: with applications in agriculture, the environment and energy. New Jersey: World Scientific, 2020. cap. 3, p. 61-83. |
DOI: |
https://doi.org/10.1142/9781786348975_0003 |
Idioma: |
Inglês |
Conteúdo: |
Water holding capacity (WHC) is defined as the ability of a medium to hold water controlled by its geometry and composition. Indication of methods to evaluate WHC of biochar and soil mixed with biochar are outlined. Studies involving the use of biochar applications and effects on WHC are reviewed and discussed. The feasibility of adding biochar to soil to enhance water holding capacity is still controversial not only because of non-significant effects in many soils, but also because the feedstock and the pyrolysis technique used to produce biochar and the consequences in WHC are still not completely understood. Biochar additions may be more effective to enhance plant-available water (PAW) in soil with a coarse texture. Caution is necessary in application of large amounts of biochar produced from not well-studied feedstocks or pyrolysis technique that is not produced to comply with the biochar standards or certificates, as some consequence may not be reversible. |
Palavras-Chave: |
Capacidade de retenção de água. |
Thesagro: |
Solo. |
Thesaurus NAL: |
Biochar; Water holding capacity. |
Categoria do assunto: |
P Recursos Naturais, Ciências Ambientais e da Terra |
Marc: |
LEADER 01740naa a2200205 a 4500 001 2127207 005 2020-11-30 008 2020 bl uuuu u00u1 u #d 024 7 $ahttps://doi.org/10.1142/9781786348975_0003$2DOI 100 1 $aTEIXEIRA, W. G. 245 $aWater holding capacity of biochar and biochar-amended soils.$h[electronic resource] 260 $c2020 520 $aWater holding capacity (WHC) is defined as the ability of a medium to hold water controlled by its geometry and composition. Indication of methods to evaluate WHC of biochar and soil mixed with biochar are outlined. Studies involving the use of biochar applications and effects on WHC are reviewed and discussed. The feasibility of adding biochar to soil to enhance water holding capacity is still controversial not only because of non-significant effects in many soils, but also because the feedstock and the pyrolysis technique used to produce biochar and the consequences in WHC are still not completely understood. Biochar additions may be more effective to enhance plant-available water (PAW) in soil with a coarse texture. Caution is necessary in application of large amounts of biochar produced from not well-studied feedstocks or pyrolysis technique that is not produced to comply with the biochar standards or certificates, as some consequence may not be reversible. 650 $aBiochar 650 $aWater holding capacity 650 $aSolo 653 $aCapacidade de retenção de água 700 1 $aVERHEIJEN, F. 700 1 $aMARQUES, J. D. de O. 773 $tIn: MANYÀ, J. J.; GASCÓ, G. (ed.). Biochar as a renewable-based material: with applications in agriculture, the environment and energy. New Jersey: World Scientific, 2020. cap. 3, p. 61-83.
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