Utilisation de trois indices, chimique, diatomique et biocénotique, pour l'évaluation de la qualité de l'eau de la Joncquière, rivière calcaire polluée par le village de Doische (Belgique, Prov. Namur)

Auteur :
LECLERCQ, L.

Description :
An organic pollution index, a diatomic one and a biocenotic one are compared in a hard water stream polluted by a village of 700 inhabitants. The diatoms communities give us the most precise estimation of the water quality and of the selfpurifying process. The differences between the three indices are explained by the isolated character of the water sampling and by the lack of sensibility and precision of biocenotic indices in connection with their very conception, with the difficulty to obtain representative samples, with the gaps in the larvae systematics and with the insufficient knowledge of their ecology. - (Author).


Type de document :
Article de périodique

Source :
Mémoires de la Société royale de Botanique de Belgique, 1988, vol. 10, p. 26-34, Références bibliographiques : 9 réf.

Date :
1988