Publication:
Tree species composition affects coarse woody debris stocks of novel secondary forests in the moist region of Puerto Rico following Hurricane Maria

dc.contributor.advisor Abelleira Martínez, Oscar J.
dc.contributor.author Marengo Casul, Alejandro J.
dc.contributor.college College of Agricultural Sciences
dc.contributor.committee Sotomayor-Ramírez, David
dc.contributor.committee González, Grizelle
dc.contributor.department Department of Crops and Agro-Environmental Sciences
dc.contributor.representative Pérez-Alegría, Luis R.
dc.date.accessioned 2023-05-10T19:41:45Z
dc.date.available 2023-05-10T19:41:45Z
dc.date.issued 2023-05-03
dc.description.abstract In Puerto Rico, novel forest ecosystems dominated by introduced tree species experienced significant amounts of coarse woody debris (CWD) accumulation following hurricanes Irma and Maria in 2017, necessitating a better understanding of CWD quantity and quality to gauge these forests' response to extreme disturbances. This study quantified CWD biomass, carbon, nitrogen, and phosphorous stocks in 21 novel forest stands in Puerto Rico and assessed their relationships to soil nitrogen and extractable phosphorous stocks using line-intersect sampling and wood sampling of dominant introduced species. Results indicate varying CWD biomass and carbon stocks between sites dominated by different tree species and located on different geological substrates, with no relationship of CWD biomass to soil nitrogen or extractable phosphorous and no effects of soil order, series, or hydrologic group. These insights are crucial for understanding post-hurricane nutrient dynamics and developing forest management strategies for climate change mitigation and carbon sequestration.
dc.description.abstract Los bosques noveles puertorriqueños dominados por especies introducidas experimentaron acumulaciones significativas de residuos leñosos grandes (RLG) durante los huracanes Irma y María en 2017. Para entender su respuesta a disturbios extremos, es necesario conocer la cantidad de RLG y su contenido de macronutrientes. Estimé la biomasa, carbono, nitrógeno y fósforo de RLG en 21 sitios de estudio, y evalué su relación con nitrógeno y fósforo de suelo utilizando muestreo por intersección de líneas y madera de las especies dominantes. Encontré variaciones en biomasa y carbono de RLG con respecto a especie dominante y sustrato geológico. No encontré relación entre biomasa de RLG con nitrógeno y fósforo de suelo, ni efectos del orden, serie o grupo hidrológico del suelo. Estos resultados informan sobre el reciclaje de nutrientes luego de disturbios extremos y el desarrollo de estrategias de manejo forestal para mitigar el cambio climático y promover el secuestro de carbono.
dc.description.graduationSemester Spring
dc.description.graduationYear 2023
dc.description.note Financial support provided by the Department of Biology, and the Department of Agroenvironmental Sciences through teaching assistantships and the support of my major advisor, Oscar Abelleira, through Research Assistantships
dc.description.sponsorship NIFA and HATCH funds of the United States Department of Agriculture (USDA)
dc.identifier.uri https://hdl.handle.net/20.500.11801/3480
dc.language.iso en
dc.rights Attribution-NonCommercial-NoDerivatives 4.0 International *
dc.rights.holder (c) 2023 Alejandro J. Marengo Casul
dc.rights.uri http://creativecommons.org/licenses/by-nc-nd/4.0/ *
dc.subject Coarse woody debris
dc.subject Novel forests
dc.subject Ecology
dc.subject Hurricane
dc.subject Introduced tree species
dc.subject.lcsh Coarse woody debris - Puerto Rico
dc.subject.lcsh Forest regeneration
dc.subject.lcsh Hurricane Irma, 2017
dc.subject.lcsh Hurricane Maria, 2017
dc.subject.lcsh Windfall (Forestry) - Hurricane effects - Puerto Rico
dc.subject.lcsh Forest microclimatology - Puerto Rico
dc.title Tree species composition affects coarse woody debris stocks of novel secondary forests in the moist region of Puerto Rico following Hurricane Maria
dc.type Thesis
dspace.entity.type Publication
thesis.degree.discipline Soil Sciences
thesis.degree.level M.S.
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