167 documents found, page 1 of 17
Natural regeneration dynamics and diversity in Pinus sylvestris stands: recomme...
Patrício, Maria Sameiro; Nunes, LuísIn Serra da Nogueira (northern Portugal), a Natura 2000 site characterized by extensive Quercus pyrenaica forests, even-aged stands of Pinus sylvestris (62-68 years old), originally established for timber, currently lacks silvicultural strategies aligned with biodiversity, regeneration and resilience goals. This study analyzed natural regeneration, and species diversity at the plot scale in two even-aged P. syl...
Fluxos de CO2 do solo num espaço verde urbano: um estudo de caso durante a esta...
Silva, Alan Victor da; Feliciano, Manuel; Patrício, Maria SameiroGlobalmente as cidades representam mais de 70% das emissões de CO2. O potencial dos espaços verdes urbanos (EVU) como uma biotecnologia para reduzir as emissões líquidas é influenciado pelo tipo de vegetação e gestão do solo. Assim, a gestão adequada dos solos urbanos desempenha um papel importante na mitigação das alterações climáticas, uma vez que afeta os processos biológicos responsáveis pela perda ou ganho...
Estimation of carbon stock in young sweet chestnut forest and agroforest planta...
Patrício, Maria Sameiro; Luchese, Luan; Nunes, Luís; Luchese, LuanRemoving CO2 from the atmosphere and storing carbon in soil and vegetation are important ecosystem services provided by sweet chestnut (Castanea sativa Mill.) plantations, both in forest and agroforest systems, for which producers may be paid under certain circumstances. Diversifying chestnut owner’s revenues beyond timber or nut, turning storage of carbon into a passive income stream, could be an opportunity t...
Stem volume ratio equations to variable merchantable limits for sweet chestnut ...
Patrício, Maria Sameiro; Tomé, MargaridaThe volume is a fundamental dendrometric characteristic that helps estimate the amount and value of wood that can be harvested, and provides insight into land productivity. However, accurately measuring trees for volume calculation is both costly and time-consuming. Therefore, equations that estimate volume based on dendrometric variables, such as DBH (diameter breast height) and total or merchantable height, a...
Comparative growth and yield performance of sweet chestnut in high-forest and c...
Patrício, Maria Sameiro; Nunes, LuísWe compare growth and yield of sweet chestnut in coppice and high-forest systems up to 24 years of age in Northern Portugal. In the coppice, data from 4 permanent plots submitted to different management models for small (P1), medium (P2) and large (P4) diameters, including a plot without intervention (P3), were used. Management model in P4 (1 shoot at the end of rotation) is converging to a similar product as h...
Metagenomic characterization of soil bacterial communities in young chestnut or...
Pereira, Ermelinda; Choupina, Altino; Patrício, Maria SameiroSoil microorganisms play a crucial role in biogeochemical cycles and are key drivers of soil productivity. However, the soil bacterial community associated with the European chestnut (Castanea sativa Mill.) remains poorly characterized. In this sense, this study aimed to characterize the soil bacterial community in young chestnut orchards in Northern Portugal and investigate its dynamics throughout the year. So...
A silvicultural synthesis of sweet (Castanea sativa) and American (C. dentata) ...
Clark, Stacy L.; Marcolin, Enrico; Patrício, Maria Sameiro; Loewe-Muñoz, VerónicaSweet chestnut (Castanea sativa) and American chestnut (C. dentata) have been explicitly linked to ancient, historical, and contemporary cultures while enhancing ecological services in forests in which they occur. Threats that currently face these chestnut species are unprecedented and additive, including global climate change, nonnative pest and pathogen species, land use changes, and lack of scientific knowle...
Advances and perspectives on the ecology and management of Castanea species
Marcolin, Enrico; Clark, Stacy L.; Patrício, Maria Sameiro; Loewe-Muñoz, VerónicaSpecies of chestnut (Castanea spp.) are naturally widespread throughout temperate forests of the northern hemisphere in Asia, Europe, and North America. Populations have been naturalized outside of species’ native ranges in Europe, North America, South America and Oceania. The wide diffusion on a planetary level over tens of millions of years has resulted in high genetic variability within the genus and spe- ci...
Fluxos de CO2 do solo num espaço verde urbano: um estudo de caso durante a esta...
Silva, Alan Victor; Feliciano, Manuel; Patrício, Maria SameiroGlobalmente as cidades representam mais de 70% das emissões de CO2. O potencial dos espaços verdes urbanos (EVU) como uma biotecnologia para reduzir as emissões líquidas é influenciado pelo tipo de vegetação e gestão do solo. Assim, a gestão adequada dos solos urbanos desempenha um papel importante na mitigação das alterações climáticas, uma vez que afeta os processos biológicos responsáveis pela perda ou ganho...
Comparative growth and yield performance of sweet chestnut in high forest and c...
Patrício, Maria Sameiro; Nunes, LuísIn Portugal, sweet chestnut Castanea sativa Mill is predominantly found in inland mountain areas in the North and Center of the country Patrício et al 2022 covering an estimated area of over 48 000 hectares (ICNF, 2015), including orchards and forest woodlands. Chestnut forests have been managed for wood production in both coppice and high forest systems, with coppice offering flexibility in producing wood of v...