Staff Publications

Staff Publications

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    '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.

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Record number 354322
Title Effects of water level and temperature on performance of four Sphagnum mosses
Author(s) Robroek, B.J.M.; Limpens, J.; Breeuwer, A.J.G.; Schouten, M.G.C.
Source Plant Ecology 190 (2007)1. - ISSN 1385-0237 - p. 97 - 107.
DOI https://doi.org/10.1007/s11258-006-9193-5
Department(s) Nature Conservation and Plant Ecology
PE&RC
WIMEK
Publication type Refereed Article in a scientific journal
Publication year 2007
Keyword(s) growth dynamics - peat bog - nitrogen - photosynthesis - mineralization - magellanicum - productivity - competition - deposition - peatlands
Abstract To evaluate the effects of changes in water level and temperatures on performance of four Sphagnum mosses, S. magellanicum, S. rubellum, S. imbricatum and S. fuscum were grown at two water levels, ¿5 cm and ¿15 cm, and at two temperatures, 15°C and 20°C. These species differ in their position along the microtopographical gradient and in their geographical distribution. Height increment, subcapitulum bulk density, biomass production, capitulum water content and cumulative evaporation were measured. Height increment and biomass production of S. magellanicum was lower at low water table than at high water table, whereas height increment and biomass production of S. rubellum, S. imbricatum and S. fuscum were unaffected. Height increment of S. magellanicum, S. rubellum and S. imbricatum was higher at high temperature than at low temperature. Biomass production of only S. magellanicum and S. rubellum was higher at high temperature than at low temperature, corresponding with their more southern distribution. Cumulative evaporation of S. magellanicum and S. rubellum was lower at low water table and could be explained by hampered water transport towards the capitula. We conclude that changes in water table and temperature may alter the Sphagnum composition on raised bogs, which may result in changes to important ecosystem processes. Therefore, it is important that species composition and changes therein are taken into account when evaluating global change effects on raised bog ecosystems
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