Staff Publications

Staff Publications

  • external user (warningwarning)
  • Log in as
  • language uk
  • About

    'Staff publications' is the digital repository of Wageningen University & Research

    'Staff publications' contains references to publications authored by Wageningen University staff from 1976 onward.

    Publications authored by the staff of the Research Institutes are available from 1995 onwards.

    Full text documents are added when available. The database is updated daily and currently holds about 240,000 items, of which 72,000 in open access.

    We have a manual that explains all the features 

    Records 1 - 5 / 5

    • help
    • print

      Print search results

    • export

      Export search results

    Check title to add to marked list
    Tropical forest canopies and their relationships with climate and disturbance: results from a global dataset of consistent field-based measurements
    Pfeifer, Marion ; Gonsamo, Alemu ; Woodgate, William ; Cayuela, Luis ; Marshall, Andrew R. ; Ledo, Alicia ; Paine, Timothy C.E. ; Marchant, Rob ; Burt, Andrew ; Calders, Kim ; Courtney-mustaphi, Colin ; Cuni-sanchez, Aida ; Deere, Nicolas J. ; Denu, Dereje ; Gonzalez De Tanago Meñaca, J. ; Hayward, Robin ; Lau Sarmiento, A.I. ; Macía, Manuel J. ; Olivier, Pieter I. ; Pellikka, Petri ; Seki, Hamidu ; Shirima, Deo ; Trevithick, Rebecca ; Wedeux, Beatrice ; Wheeler, Charlotte ; Munishi, Pantaleo K.T. ; Martin, Thomas ; Mustari, Abdul ; Platts, Philip J. - \ 2018
    Forest Ecosystems 5 (2018). - ISSN 2095-6355 - 14 p.
    Background: Canopy structure, defined by leaf area index (LAI), fractional vegetation cover (FCover) and fraction of absorbed photosynthetically active radiation (fAPAR), regulates a wide range of forest functions and ecosystem services. Spatially consistent field-measurements of canopy structure are however lacking, particularly for the tropics. Methods: Here, we introduce the Global LAI database: a global dataset of field-based canopy structure measurements spanning tropical forests in four continents (Africa, Asia, Australia and the Americas). We use these measurements to test for climate dependencies within and across continents, and to test for the potential of anthropogenic disturbance and forest protection to modulate those dependences. Results: Using data collected from 887 tropical forest plots, we show that maximum water deficit, defined across the most arid months of the year, is an important predictor of canopy structure, with all three canopy attributes declining significantly with increasing water deficit. Canopy attributes also increase with minimum temperature, and with the protection of forests according to both active (within protected areas) and passive measures (through topography). Once protection and continent effects are accounted for, other anthropogenic measures (e.g. human population) do not improve the model. Conclusions: We conclude that canopy structure in the tropics is primarily a consequence of forest adaptation to the maximum water deficits historically experienced within a given region. Climate change, and in particular changes in drought regimes may thus affect forest structure and function, but forest protection may offer some resilience against this effect.
    Towards an improved access to hyperspectral data across Europe (HYRESSA)
    Reusen, I. ; Holzwarth, S. ; Nieke, J. ; Kooistra, L. ; Malthus, T. ; Chabrillat, S. ; Kaufmann, H. ; Gomez-Sanchez, J.A. ; Homolova, L. ; Itten, K. ; Malenovsky, Z. ; Meuleman, K. ; Miguel, E. de; Mottus, M. ; Mueller, A. ; Pellikka, P. ; Schaepman, M.E. - \ 2007
    In: Proceedings 5th EARSeL SIG IS workshop "IMAGING SPECTROSCOPY: innovation in environmental research". - Brugge : EARSeL - p. 13 - 13.
    Estimation of leaf area index using optical field instruments and imaging spectroscopy
    Gonsamo Gosa, A. ; Schaepman-Strub, G. ; Kooistra, L. ; Pellikka, P. - \ 2007
    - p. 1 - 13.
    User-driven requirements of the European hyperspectral remote sensing community
    Nieke, J. ; Itten, K.I. ; Reusen, I. ; Adriaensen, S. ; Schaepman, M.E. ; Kooistra, L. ; Pellikka, P. ; Chabrillat, S. ; Gomez, J.A. ; Miguel, E. De; Müller, A. ; Holzwarth, S. ; Kaufmann, H. ; Malenovsky, Z. ; Malthus, T.J. ; Mottus, M. - \ 2007
    In: Proceedings of the 10th International Symposium on Physical Measurements and Spectral Signatures in Remote Sensing (ISPMSRS'07), Davos, 12-14 March 2007. - Davos (CH) : ISPRS - p. 191 - 205.
    Towards an improved access to hyperspectral data across Europe (HYRESSA)
    Reusen, I. ; Mueller, A. ; Itten, K.I. ; Kaufmann, H. ; Schaepman, M.E. ; Miguel, E. De; Malenovsky, Z. ; Mottus, M. ; Pellikka, P. ; Malthus, T.J. - \ 2006
    Check title to add to marked list

    Show 20 50 100 records per page

     
    Please log in to use this service. Login as Wageningen University & Research user or guest user in upper right hand corner of this page.