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Biomass and selected ecological factors of epiphytic bryophyte along altitudinal gradients in Southern Thailand

Author(s): Sahut Chantanaorrapint | Jan-Peter Frahm

Journal: Songklanakarin Journal of Science and Technology
ISSN 0125-3395

Volume: 33;
Issue: 6;
Start page: 625;
Date: 2011;
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Keywords: altitudinal belts | biomass | epiphytic bryophytes | tropical rain forest | Thailand

Biomass of epiphytic bryophytes was investigated along three altitudinal transects in southern Thailand: TarutaoNational Park (25-700 m), Khao Nan National Park (400-1,300 m), and Khao Luang National Park (400-1,500 m). The dry weightof epiphytic bryophytes per surface area increased from 1.15 g/m2 in the lowland to a maximum 199 g/m2 at the lower montaneforests. The estimation of dry weight per hectare increased along transect from 2.4 to 620 kg. The water storing capacity ofepiphytic bryophytes was about 1.2 to 2.4 times as dry weight and was generally higher in the lower montane forest (up to1,500 l/ha) than in the lowland forests. The bark pH of host trees range between 3.19 and 6.84, and show negative correlationwith the altitude (r=-0.635, p
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