POSSIBILITIES FOR ECOHYDROLOGICAL MONITORING IN NATURAL AND MANAGED ECOSYSTEMS IN SOUTHERN CHILE

Ecohydrology investigates how hydrological processes affect plant growth and vice versa. As these mutual interactions are important in many ecosystems, ecohydrology has wide applicability. An important aspect of ecohydrological research is the assessment and prediction of the occurrence of plant spe...

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Autores principales:	Peters,Jan, Wieme,Vanessa, Boeckx,Pascal, Samson,Roeland, Godoy,Roberto, Oyarzún,Carlos, Verhoest,Niko
Lenguaje:	English
Publicado:	Facultad de Ciencias Naturales y Oceanográficas, Universidad de Concepción 2005
Materias:	Ecohydrology modelling vegetation hydrology decision support systems
Acceso en línea:	http://www.scielo.cl/scielo.php?script=sci_arttext&pid=S0717-66432005000200007
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spelling	oai:scielo:S0717-664320050002000072006-03-22POSSIBILITIES FOR ECOHYDROLOGICAL MONITORING IN NATURAL AND MANAGED ECOSYSTEMS IN SOUTHERN CHILEPeters,JanWieme,VanessaBoeckx,PascalSamson,RoelandGodoy,RobertoOyarzún,CarlosVerhoest,Niko Ecohydrology modelling vegetation hydrology decision support systems Ecohydrology investigates how hydrological processes affect plant growth and vice versa. As these mutual interactions are important in many ecosystems, ecohydrology has wide applicability. An important aspect of ecohydrological research is the assessment and prediction of the occurrence of plant species or vegetation types in relation to hydrological or hydrogeochemical habitat conditions. Several models have been developed (e.g. DEMNAT, ICHORS, ITORS, ITORS-VL). All of these models are data driven. Consequently a monitoring network has to be installed, possibly in addition to existing databases. These networks are ecosystem specific but the most widely monitored variables are: water table depth, electric conductivity of groundwater, soil moisture content and chemistry (pH, concentrations of major ions and nutrients) and vegetation composition. The ITORS-VL model proved to be successful for predicting probabilities of plant species and plant community occurrence in Flemish (Belgium) wetland ecosystems, using regressions based on environmental variables ranging from hydrological variables as mean water table depth to chemical variables characterizing soil water such as nitrate concentration and electrical conductivity. However, because of its empirical and ecosystem specific nature, ITORS-VL would not be readily applicable to Chilean ecosystems. The possibility for implementing a comparable monitoring and modelling approach in different ecosystems in southern Chile is investigated. Benefits are of many kinds: (i) a holistic understanding of ecosystem functioning; (ii) the ability to determine the relative importance of site characteristics in various ecosystems and (iii) the possibility to predict vegetation successional stages under changing environmental conditions. These benefits have potential roles in decision support, ecosystem restoration and risk or environmental impact assessmentinfo:eu-repo/semantics/openAccessFacultad de Ciencias Naturales y Oceanográficas, Universidad de ConcepciónGayana. Botánica v.62 n.2 20052005-01-01text/htmlhttp://www.scielo.cl/scielo.php?script=sci_arttext&pid=S0717-66432005000200007en10.4067/S0717-66432005000200007
institution	Scielo Chile
collection	Scielo Chile
language	English
topic	Ecohydrology modelling vegetation hydrology decision support systems
spellingShingle	Ecohydrology modelling vegetation hydrology decision support systems Peters,Jan Wieme,Vanessa Boeckx,Pascal Samson,Roeland Godoy,Roberto Oyarzún,Carlos Verhoest,Niko POSSIBILITIES FOR ECOHYDROLOGICAL MONITORING IN NATURAL AND MANAGED ECOSYSTEMS IN SOUTHERN CHILE
description	Ecohydrology investigates how hydrological processes affect plant growth and vice versa. As these mutual interactions are important in many ecosystems, ecohydrology has wide applicability. An important aspect of ecohydrological research is the assessment and prediction of the occurrence of plant species or vegetation types in relation to hydrological or hydrogeochemical habitat conditions. Several models have been developed (e.g. DEMNAT, ICHORS, ITORS, ITORS-VL). All of these models are data driven. Consequently a monitoring network has to be installed, possibly in addition to existing databases. These networks are ecosystem specific but the most widely monitored variables are: water table depth, electric conductivity of groundwater, soil moisture content and chemistry (pH, concentrations of major ions and nutrients) and vegetation composition. The ITORS-VL model proved to be successful for predicting probabilities of plant species and plant community occurrence in Flemish (Belgium) wetland ecosystems, using regressions based on environmental variables ranging from hydrological variables as mean water table depth to chemical variables characterizing soil water such as nitrate concentration and electrical conductivity. However, because of its empirical and ecosystem specific nature, ITORS-VL would not be readily applicable to Chilean ecosystems. The possibility for implementing a comparable monitoring and modelling approach in different ecosystems in southern Chile is investigated. Benefits are of many kinds: (i) a holistic understanding of ecosystem functioning; (ii) the ability to determine the relative importance of site characteristics in various ecosystems and (iii) the possibility to predict vegetation successional stages under changing environmental conditions. These benefits have potential roles in decision support, ecosystem restoration and risk or environmental impact assessment
author	Peters,Jan Wieme,Vanessa Boeckx,Pascal Samson,Roeland Godoy,Roberto Oyarzún,Carlos Verhoest,Niko
author_facet	Peters,Jan Wieme,Vanessa Boeckx,Pascal Samson,Roeland Godoy,Roberto Oyarzún,Carlos Verhoest,Niko
author_sort	Peters,Jan
title	POSSIBILITIES FOR ECOHYDROLOGICAL MONITORING IN NATURAL AND MANAGED ECOSYSTEMS IN SOUTHERN CHILE
title_short	POSSIBILITIES FOR ECOHYDROLOGICAL MONITORING IN NATURAL AND MANAGED ECOSYSTEMS IN SOUTHERN CHILE
title_full	POSSIBILITIES FOR ECOHYDROLOGICAL MONITORING IN NATURAL AND MANAGED ECOSYSTEMS IN SOUTHERN CHILE
title_fullStr	POSSIBILITIES FOR ECOHYDROLOGICAL MONITORING IN NATURAL AND MANAGED ECOSYSTEMS IN SOUTHERN CHILE
title_full_unstemmed	POSSIBILITIES FOR ECOHYDROLOGICAL MONITORING IN NATURAL AND MANAGED ECOSYSTEMS IN SOUTHERN CHILE
title_sort	possibilities for ecohydrological monitoring in natural and managed ecosystems in southern chile
publisher	Facultad de Ciencias Naturales y Oceanográficas, Universidad de Concepción
publishDate	2005
url	http://www.scielo.cl/scielo.php?script=sci_arttext&pid=S0717-66432005000200007
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_version_	1718442222733492224

POSSIBILITIES FOR ECOHYDROLOGICAL MONITORING IN NATURAL AND MANAGED ECOSYSTEMS IN SOUTHERN CHILE

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