CHEMICAL-COMPOSITION OF DISTURBED AND UNDISTURBED HIGH-MOUNTAIN LAKES IN THE PYRENEES - A REFERENCE FOR ACIDIFIED SITES

被引：60

作者：

CATALAN, J ^{[1
]}

BALLESTEROS, E ^{[1
]}

GACIA, E ^{[1
]}

PALAU, A ^{[1
]}

CAMARERO, L ^{[1
]}

机构：

[1] CTR ESTUDIS AVANCATS, E-17300 BLANES, SPAIN

来源：

WATER RESEARCH | 1993年 / 27卷 / 01期

关键词：

BIOGEOCHEMISTRY; ALKALINITY; ACIDIFICATION; EUTROPHICATION; GRANODIORITE; SULFATE; CALCIUM; PHOSPHORUS; MOUNTAIN LAKES;

D O I：

10.1016/0043-1354(93)90203-T

中图分类号：

X [环境科学、安全科学];

学科分类号：

08 ; 0830 ;

摘要：

102 lakes distributed along the Catalan Pyrenees (from 0-degrees-41'E to 1-degrees-48'E) were sampled during summer in 1987. The alkalinity of the lakes was low (< 300 muequiv l-1) but there was no regional acidification. Most chemical variance was related to the nature of the bedrock. Lakes on Devonian, Cambro-Ordovician, Silurian or granodioritic batholites were easily distinguished. Even between different batholites, there were significant differences. There was no clear distinction either in the chemistry or in trophic status between disturbed and undisturbed lakes, except for certain extreme cases. Pasture is the most important source of eutrophication, but is restricted to small, very shallow and usually endorreic lakes.

引用

页码：133 / 141

页数：9

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