Recursos de colección

UTL Repository Universidade Técnica de Lisboa (37.000 recursos)

O Repositório Institucional da Universidade Técnica de Lisboa desenvolvido no âmbito do projecto RCAAP. Este repositório destina-se a recolher, preservar e disponibilizar o acesso às publicações científicas e didácticas de seis: Escolas da UTL: Faculdade de Medicina Veterinária, Instituto Superior de Agronomia, Instituto Superior de Economia e Gestão, Instituto Superior de Ciências Sociais e Políticas , Faculdade de Motricidade Humana, Faculdade de Arquitectura. O Instituto Superior Técnico, igualmente Escola Da UTL, tem repositório independente.

ISA - Instituto Superior de Agronomia

Mostrando recursos 1 - 20 de 999

  1. Agroforestry as sustainable land use. Proceedings of the 4th European Agroforestry Conference

    The book is plenty of extraordinary information and experiences about agroforestry practices and systems around the world including Africa, America and Europe. Silvopastoralism is the most relevant agroforestry practice shown in the book, but also silvoarable or alley cropping practices become important. Sessions and topics deal with the enhancement of productivity of both the woody perennial and the lower storey component of the agroforestry practice trying to cope with an increasing primary sector products demanded by the world, but also highlighting the importance of the ecosystem services delivery and considering the fulfillment of the United Nations Sustainable Development Goals. The importance of agroforestry as one of the best...

  2. Evapotranspiration partition and crop coefficients of Tifton 85 bermudagrass as affected by the frequency of cuttings. Application of the FAO56 Dual Kc Model

    Paredes, Paula; Rodrigues, Geraldo J.; Petry, Mirta T.; Severo, Paula O.; Carlesso, Reimar; Pereira, L.S.

  3. OliveCan: a process-based model of development, growth and yield of olive orchards

    López-Bernal, Álvaro; Morales, Alejandro; Garcia-Tejera, Omar; Testi, Luca; Orgaz, Francisco; Melo-Abreu, J.P.; Villalobos, Francisco J.
    Original Research

  4. Ichthyiological collection of the Museu Oceanográfico D. Carlos I

    Silva, Ana Serra; Groz, Maria Pitta; Leandro, Paula; Assis, Carlos A.; Figueira, Rui
    Data Paper

  5. Traditional knowledge and cultural importance of Borassus aethiopum Mart. in Benin: interacting effects of socio-demographic attributes and multi-scale abundance

    Salako, Kolawole Valère; Moreira, Francisco; Gbedomon, Rodrigue Castro; Tovissodé, Frédéric; Assogbadjo, Achille Ephrem; Kakai, Romain Lucas Glèlè

  6. Chemical composition of barks from Quercus faginea trees and characterization of their lipophilic and polar extracts

    Ferreira, Joana P.A.; Miranda, Isabel; Sousa, Vicelina B.; Pereira, Helena
    The bark from Quercus faginea mature trees from two sites was chemically characterized for the first time. The barks showed the following composition: ash 14.6%, total extractives 13.2%, suberin 2.9% and lignin 28.2%. The polysaccharides were composed mainly of glucose and xylose (50.3% and 35.1% of all monosaccharides respectively) with 4.8% of uronic acids. The suberin composition was: ω-hydroxyacids 46.3% of total compounds, ɑ,ω-alkanoic diacids 22.3%, alkanoic acids 5.9%, alkanols 6.7% and aromatics 6.9% (ferulic acid 4.0%). Polar extracts (ethanol-water) had a high phenolic content of 630.3 mg of gallic acid equivalents (GAE)/g of extract, condensed tannins 220.7 mg of catechin equivalents (CE)/g extract, and...

  7. Volatile diterpene emission by two Mediterranean Cistaceae shrubs

    Yáñez-Serrano, A.M.; Fasbender, L.; Kreuzwieser, J.; Dubbert, D.; Haberstroh, S.; Lobo-do-Vale, R.; Caldeira, M.C.; Werner, C.
    Mediterranean vegetation emits a wide range of biogenic volatile organic compounds (BVOCs) among which isoprenoids present quantitatively the most important compound class. Here, we investigated the isoprenoid emission from two Mediterranean Cistaceae shrubs, Halimium halimifolium and Cistus ladanifer, under controlled and natural conditions, respectively. For the first time, diurnal emission patterns of the diterpene kaurene were detected in real-time by Proton-Transfer-Reaction-Timeof- Flight-Mass-Spectrometer. Kaurene emissions were strongly variable among H. halimifolium plants, ranging from 0.01 ± 0.003 to 0.06 ± 0.01 nmol m−2 s−1 in low and high emitting individuals, respectively. They were in the same order of magnitude as monoterpene (0.01 ± 0.01 to 0.11 ± 0.04 nmol...

  8. Modelling agroforestry systems with Web-EcoYieldSAFE

    Palma, J.H.N.; Tomás, A.

  9. Comparison of observed data and high-resolution regional climate simulations on process based modelling

    Palma, J.H.N.; Cardoso, R.M.; Soares, P.M.M.; Oliveira, T.S.; Tomé, M.

  10. Effects of grazing exclusion and shrub encroachment on the ecosystem ecology of evergreen oak woodland

    Lecomte, Xavier Jean François
    Doutoramento em Engenharia Florestal e dos Recursos Naturais - Instituto Superior de Agronomia

  11. Genetic and ecological consequences of a shifted phenology in a forest defoliator

    Rocha, Susana Cristina Machado
    Doutoramento em Engenharia Florestal e dos Recursos Naturais - Instituto Superior de Agronomia

  12. Modeling soil water dynamics and pasture growth in the montado ecosystem using MOHID land

    Simionesei, Lucian; Ramos, Tiago B.; Oliveira, Ana R.; Jongen, Marjan; Darouich, Hanaa; Weber, Kirsten; Proença, Vânia; Domingos, Tiago; Neves, Ramiro
    The southern Iberian Peninsula is characterized by evergreen oak woodlands (locally known as montado), which constitute an important savanna-type agro-silvo-pastoral ecosystem. This ecosystem is facing a progressive decline for several reasons, with the foremost being overgrazing. Better management tools are necessary to accurately quantify the systems’ carrying capacity and the sustainable stocking rates that prevent land degradation. The purpose of this study was to determine whether the MOHID-Land model could adequately simulate soil water dynamics and pasture growth in the montado ecosystem. The study area was located in the Alentejo region of southern Portugal. The model successfully simulated soil water contents and aboveground biomass during the 2010–2011 and...

  13. Environmental strategies of affect regulation and their associations with subjective well-being

    Korpela, Kalevi M.; Pasanen, Tytti; Repo, Veera; Staats, Henk; Mason, Michael; Alves, Susana; Fornara, Ferdinando; Marks, Tony; Saini, Sunil; Scopelliti, Massimiliano; Soares, Ana Luísa; Stigsdotter, Ulrika K.; Thompson, Catharine Ward
    Original Research

  14. Juvenile wood characterization of Eucalyptus botryoides and E. maculata by using SilviScan

    Knapic, Sofia; Grahn, Thomas; Lundqvist, Sven-Olof; Pereira, Helena

  15. How does season affect passage performance and fatigue of Potamodromous Cyprinids ? An experimental approach in a vertical slot fishway

    Romão, Filipe; Santos, José M.; Katopodis, Christos; Pinheiro, António N.; Branco, Paulo
    Most fishway studies are conducted during the reproductive period, yet uncertainty remains on whether results may be biased if the same studies were performed outside of the migration season. The present study assessed fish passage performance of a potamodromous cyprinid, the Iberian barbel (Luciobarbus bocagei), in an experimental full-scale vertical slot fishway during spring (reproductive season) and early-autumn (non-reproductive season). Results revealed that no significant differences were detected on passage performance metrics, except for entry efficiency. However, differences between seasons were noted in the plasma lactate concentration (higher in early-autumn), used as a proxy for muscular fatigue after the fishway navigation. This suggests that, for potamodromous cyprinids, the...

  16. Flow management to control excessive growth of Macrophytes - An assessment based on habitat suitability modeling

    Ochs, Konstantin; Rivaes, Rui P.; Ferreira, Teresa; Egger, Gregory
    Original Research

  17. Advancing towards functional environmental flows for temperate floodplain rivers

    Hayes, Daniel S.; Brandle, Julia M.; Seliger, Carina; Zeiringer, Bernhard; Ferreira, Teresa; Schmutz, Stefan
    Abstraction, diversion, and storage of flow alter rivers worldwide. In this context,minimumflow regulations are applied to mitigate adverse impacts and to protect affected river reaches from environmental deterioration. Mostly, however, only selected instreamcriteria are considered, neglecting the floodplain as an indispensable part of the fluvial ecosystem. Based on essential functions and processes of unimpaired temperate floodplain rivers, we identify fundamental principles towhich we must adhere to determine truly ecologically-relevant environmental flows. Literature reveals that the natural flow regime and its seasonal components are primary drivers for functions and processes of abiotic and biotic elements such as morphology, water quality, floodplain, groundwater, riparian vegetation, fish, macroinvertebrates, and amphibians,...

  18. Jardim Botânico da Ajuda

    Cabral, Francisco Caldeira
    Relatório do Tirocínio do Curso de Engenheiro Agrónomo - Instituto Superior de Agronomia

  19. Towards integrated fire management - Outcomes of the European Project Fire Paradox


  20. Ecological and ecotoxicological responses in the assessment of the ecological status of freshwater systems: A case study of the temporary stream Brejo of Cagarrão (South of Portugal)

    Palma, P.; Matos, C.; Alvarenga, P.; Kock-Schulmeyer, M.; Simões, I.; Barceló, D.; López de Alda, M.J.
    The objective of the study was to assess the integrated use of macroinvertebrate indexes and ecotoxicological parameters in the evaluation of the ecological status of a temporary stream with a strong agricultural influence. Water quality was analysed at two sampling sites along the stream, considering: chemical supporting parameters; hazardous substances (pesticides); benthic macroinvertebrate communities, through quality (Iberian Biological Monitoring Working Party and Iberian Average Score Per Taxon) and multi-metric indices (Southern Portuguese Index of Invertebrates and Ecological Quality Ratio); and ecotoxicological responses using lethal and sub-lethal bioassays. The water chemical characterization showed high levels of organic matter and nutrients, mainly in the dry period ((biochemical oxygen demand...

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