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The importance of soil parameters as predictors of plant species and communities’ distribution and biodiversity along Erges river

2021Documento de conferência Acesso aberto
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dc.contributor.authorQuinta-Nova, L.C.
dc.contributor.authorMonteiro, M.C.H.
dc.contributor.authorDuarte, A.C.
dc.date.accessioned2021-10-11T23:34:35Z
dc.date.available2021-10-11T23:34:35Z
dc.date.issued2021
dc.description.abstractRiparian systems are transitional environments between water bodies and surrounding elevated areas; they form an environment within which the aquatic and terrestrial components of the landscape interact. Riparian zones have been variously defined as very complex ecotones with distinct vegetation and soil characteristics periodically, influenced by flooding and, thus, where vegetation may be influenced by elevated water tables and the ability of the soils to hold water. Soil factors are of well-known importance for plants among other abiotic factors because they constitute the belowground environment from which water and nutrients can be captured. There are important feedbacks between the standing vegetation and fluvial processes, which have a fundamental effect on the character and dynamics of the riparian habitat mosaic. As a result of their complexity and dynamics, naturally functioning riparian systems show high biodiversity and production. Among soil parameters, soil pH is often considered the most proximal for explaining plant distributions and it was shown to be an important predictor of plant species richness. The carbon isotope composition of soil organic matter (OM) is another potentially important parameter used to infer the source of carbon in different ecosystems. This work aimed at evaluating the effect of soil proprieties in plant species and communities’ distribution and diversity along the banks of Erges river in the Tejo Internacional Natural Park (PNTI), Portugal. In this riparian area the homogeneous natural vegetation types, the floristic composition and cover of the species were determined in 56 plots floristic inventories and soil samples were collected, following a random-stratified equal sampling design. During the study period, a total of 249 plant species were recorded, and 10 main vegetation communities were identified. The influence of the soil parameters in the explanation of vegetation presence and abundance was assessed using canonical ordination (RDA). Linear regression was used to study the relation between soil parameters and plant richness. The correlation between the pH and plant species richness (R = 0.314) and between OM and plant species richness (R = 0.397) is moderate and positive. For rock vegetation communities the potassium concentrations in soil are higher than in other plant communities (x =129 ppm), and the OM content is higher in tall shrubs’ communities (x = 4.98%). Concerning the relation between soil parameters and presence of plant species using RDA, with the Monte Carlo permutation test showing that there is a significant correlation (P = 0.002), and 52.54% of total of the variance explained with the first two axes, we observed that OM, phosphorus, and pH concentrations have a strong influence in species distribution.pt_PT
dc.description.versioninfo:eu-repo/semantics/publishedVersionpt_PT
dc.identifier.citationQuinta-Nova, L., Horta, C., Duarte, A., 2021. The importance of soil parameters as predictors of plant species and communities’ distribution and biodiversity along Erges river. World Multidisciplinary Earth Sciences Symposium 2021. Praga, 6 a 10 de setembropt_PT
dc.identifier.urihttp://hdl.handle.net/10400.11/7687
dc.language.isoengpt_PT
dc.peerreviewedyespt_PT
dc.relationPortuguese national funds by FCT - Foundation for Science and Technology, I.P., within the GEOBIOTEC - Project UIDB/04035/2020pt_PT
dc.subjectSoil proprietiespt_PT
dc.subjectRiver ecosystempt_PT
dc.subjectPlant speciespt_PT
dc.subjectBiodiversitypt_PT
dc.titleThe importance of soil parameters as predictors of plant species and communities’ distribution and biodiversity along Erges riverpt_PT
dc.typeconference object
dspace.entity.typePublication
oaire.citation.conferencePlacePragapt_PT
oaire.citation.titleWorld Multidisciplinary Earth Sciences Symposium 2021pt_PT
person.familyNameQuinta-Nova
person.familyNameMonteiro
person.familyNameCANATÁRIO DUARTE
person.givenNameLuís
person.givenNameM.C.H.
person.givenNameANTÓNIO
person.identifier.ciencia-id7E1C-426F-DCFF
person.identifier.ciencia-id5D12-6B5C-23F1
person.identifier.ciencia-id0717-AB48-E1A3
person.identifier.orcid0000-0002-8464-7527
person.identifier.orcid0000-0003-0101-1599
person.identifier.orcid0000-0002-0319-378X
person.identifier.ridO-2888-2014
person.identifier.scopus-author-id36094927600
person.identifier.scopus-author-id54901177900
rcaap.rightsopenAccesspt_PT
rcaap.typeconferenceObjectpt_PT
relation.isAuthorOfPublicationf0595f24-cf61-4057-b388-e919e88a0fb4
relation.isAuthorOfPublication00f17bad-649e-4953-a3a4-dd8c48b67f05
relation.isAuthorOfPublicationff1ed167-3f68-4e2b-b092-aaa0eb28ae6b
relation.isAuthorOfPublication.latestForDiscoveryf0595f24-cf61-4057-b388-e919e88a0fb4

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