globalchange  > 气候变化事实与影响
DOI: 10.1016/j.jag.2014.09.003
Scopus记录号: 2-s2.0-84942372184
论文题名:
An ontological system based on modis images to assess ecosystemfunctioning of natura 2000 habitats: A case study for quercuspyrenaica forests
作者: Pérez-Luque A; J; , Pérez-Pérez R; , Bonet-García F; J; , Magaña P; J
刊名: International Journal of Applied Earth Observation and Geoinformation
ISSN: 15698432
出版年: 2015
卷: 37
起始页码: 142
结束页码: 151
语种: 英语
英文关键词: (satellite) Earth observation ; Ndvi ; Ontology ; Sierra Nevadaa ; Snow cover
Scopus关键词: ecosystem function ; habitat selection ; MODIS ; NDVI ; satellite data ; satellite imagery ; snow cover ; temporal analysis ; California ; Sierra Nevada [California] ; United States ; Savia
英文摘要: The implementation of the Natura 2000 network requires methods to assess the conservation status ofhabitats. This paper shows a methodological approach that combines the use of (satellite) Earth obser-vation with ontologies to monitor Natura 2000 habitats and assess their functioning. We have createdan ontological system called Savia that can describe both the ecosystem functioning and the behaviourof abiotic factors in a Natura 2000 habitat. This system is able to automatically download images from MODIS products, create indicators and compute temporal trends for them. We have developed an ontol-ogy that takes into account the different concepts and relations about indicators and temporal trends, and the spatio-temporal components of the datasets. All the information generated from datasets andMODIS images, is stored into a knowledge base according to the ontology. Users can formulate complexquestions using a SPARQL end-point. This system has been tested and validated in a case study that usesQuercus pyrenaica Willd. forests as a target habitat in Sierra Nevada (Spain), a Natura 2000 site. We assessecosystem functioning using NDVI. The selected abiotic factor is snow cover. Savia provides useful dataregarding these two variables and reflects relationships between them. © 2014 Elsevier B.V..
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资源类型: 期刊论文
标识符: http://119.78.100.158/handle/2HF3EXSE/79486
Appears in Collections:气候变化事实与影响

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作者单位: Laboratorio de Ecología (iEcolab), Instituto Interuniversitario Sistema Tierra, Universidad de Granada, Avda. del Mediterráneo s/n, Granada, Spain; Departamento de Ecología, Facultad de Ciencias, Universidad de Granada, Granada, Spain; Grupo de Dinámica de Flujos Ambientales, Instituto Interuniversitario Sistema Tierra, Universidad de Granada, Granada, Spain

Recommended Citation:
Pérez-Luque A,J,, Pérez-Pérez R,et al. An ontological system based on modis images to assess ecosystemfunctioning of natura 2000 habitats: A case study for quercuspyrenaica forests[J]. International Journal of Applied Earth Observation and Geoinformation,2015-01-01,37
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