Resumen

DIAZ-LEZCANO, Maura Isabel; RODRIGUEZ-BENITEZ, Manuel David; MORENO-RESQUIN, Higinio  y  BRITOS-BENITEZ, Cristian Andrés. Ecosystemregulationservicefor a galleryforestfromtheSan Lorenzo Stream, Paraguay. Agron. Costarricense [online]. 2022, vol.46, n.1, pp.135-146. ISSN 0377-9424.  http://dx.doi.org/10.15517/rac.v46i1.49874.

Introduction. Forests are themost diverse terrestrialecosystems and fulfillenvironmental and ecological, social and economicfunctions, offerdirect and indirectbenefitstotheenvironment, oneofthemainonesistheregulatoryservice. Objective. Wastoanalyzetheecosystemserviceofregulationof a galleryforestofthe San Lorenzo stream, Paraguay. Materials and method.Theresearchworkwascarriedout in thegalleryforestofthe San Lorenzo stream, Paraguay. Fourplotsof 750 m2eachwereestablishedfor data collection. The variables studiedwere: thefloristiccomposition, thephysical and chemicalconditionsofthesoil, theaverageinfiltrationrateofthesoil and theaccumulationofcarbon in theaerial, root and soiltreestrata. Results.Theforestismade up ofindividualsfromtheMeliaceae, Myrthaceae and Moraceaefamilies. In fewerspecies are Cecropiaceae, Euphorbiaceae, Fabaceae, Rhamnaceae and Sapotaceae. Thearborealcarbonstoredyieldedanaverageof 38.4 tC.ha-1, as forthesoil (COS) componentanaverageof 31.08 tC.ha-1waspresented. The total carbonaccumulated in thetwocomponentsis 69.48 tC.ha-1. Theaveragecarbonequivalentobtainedis 254.81 tCO2e.ha-1. Theaverageinfiltrationratewas 66 mm.h-1. Thesoilisflooded and littleaerated, withlowhydraulicconductivityfrom 50 cm fromthesurface. Conclusion.Thegalleryforestofferscarbonsequestrationservices, thearborealbiomasswhatconstitutesthelargestcarbonreservoir, providingwaterforconservation and sourceofthesupplyofsoilnutrients in thesub-basinofthe San Lorenzo stream, Paraguay.

Palabras clave : carbonestimation; soilnutrients; infiltrationrate; ecosystemservice.

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