A PALEOECOLOGICAL EVALUATION OF ENVIRONMENTAL DEGRADATION IN LAKE MIKRI-PRESPA, NW GREECE

被引：9

作者：

STEVENSON, AC ^{[1
]}

FLOWER, RJ ^{[1
]}

机构：

[1] UCL, DEPT GEOG, PALAEOECOL RES UNIT, LONDON WC1H 0AP, ENGLAND

来源：

BIOLOGICAL CONSERVATION | 1991年 / 57卷 / 01期

关键词：

D O I：

10.1016/0006-3207(91)90109-M

中图分类号：

X176 [生物多样性保护];

学科分类号：

090705 ;

摘要：

Sediment cores from Lake Mikri Prespa, NW Greece were examined to determine the extent and possible causes of environmental degradation in the wetland. While diatom analyses of a Pb-210-dated sediment core demonstrate that the lake does not appear to have undergone any significant changes in water quality within the last seventy years, significant variations in the sediment accumulation rate were discovered. These changes appear to be linked to changing anthropogenic pressures on the landscape involving river diversion, rural depopulation and abandonment of terracing cultivation and development of an extensive irrigation network in the catchment. It is concluded that the application of palaeoecological methods has an important role to play in the management of wetland ecosystems by providing a temporal context in which the timing, trends and nature of environmental degradation can be established and evaluated.

引用

页码：89 / 109

页数：21

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