LEACHING FROM VEGETATION OF SOLUBLE POLYPHENOLIC COMPOUNDS, AND THEIR ABUNDANCE IN TEMPORARY PONDS IN THE DONANA-NATIONAL-PARK (SW SPAIN)

被引：24

作者：

SERRANO, L

机构：

[1] Department of Ecology, University of Sevilla, Sevilla, 41080

来源：

HYDROBIOLOGIA | 1992年 / 229卷

关键词：

POLYPHENOLIC COMPOUNDS; TEMPORARY PONDS; LEACHING; FLOODING;

D O I：

10.1007/BF00006989

中图分类号：

Q17 [水生生物学];

学科分类号：

071004 ;

摘要：

The origin of allochthonous soluble polyphenols in the water of the temporary ponds of Donana National Park during flood and heavy rainfall was examined. Soil and litter samples were found to leach large quantities of polyphenolic compounds. The concentration of these compounds showed a significant correlation with the organic content of the soil samples, but indicated no correlation with the litter samples. Rain simulation tests proved that fresh vegetation leached soluble polyphenolic compounds. Mediterranean scrub (Cystaceae) from dry poor-nutrient soils yielded the highest concentration (being furthest away from the ponds), whereas wetland (Ericaceae) and littoral vegetation (Juncaceae and Cyperaceae) rated second and third, respectively. The potential of the surrounding vegetation to leach high concentrations of polyphenolic compounds suggests that this is the main source of the rapid polyphenolic enrichment of these ponds during periods of heavy rain.

引用

页码：43 / 50

页数：8

共 26 条

[1]

ALLIER CL, 1974, DONANA MAPA ECOLOGIC

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