Input of litter in deforested and forested areas of a tropical headstream

Brazilian Journal of Biology

Em Carvalho²  Vs Uieda¹ 

[1] ,UNIGRANDourados MS ,Brazil

关键词: Annual input;    Brazilian stream;    detritus;    riparian vegetation;    aporte anual;    detritos;    riacho brasileiro;    vegetação ripária;   

DOI  :  10.1590/S1519-69842010005000015

来源: SciELO

【 摘 要 】

Riparian vegetation is the main source of leaves and the main energy source for low order streams. Therefore, changes in its composition affect the structure and processes in streams. We studied the contribution of the riparian vegetation by analysing the annual input of litter in deforested and forested areas of a tropical stream. The lateral, vertical (aerial) and horizontal (drift) litter inputs were analysed separately. The lateral input differed significantly between the two areas and included mostly fallen dry leaves. The vertical input, represented mainly by fallen dry leaves, occurred only in the forested area. The drift transport of litter was not significantly different between the deforested and forested areas and the input was composed mostly by CPOM. The removal of the native forest was clearly reflected in the low contribution of leaf litter in the deforested area.

【 授权许可】

CC BY   
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