Recent environmental change and atmospheric contamination on Svalbard as recorded in lake sediments - modern limnology, vegetation, and pollen deposition

被引:34
作者
Birks, HJB
Monteith, DT
Rose, NL
Jones, VJ
Peglar, SM
机构
[1] Univ Bergen, Inst Bot, N-5007 Bergen, Norway
[2] UCL, Environm Change Res Ctr, London WC1H 0AP, England
关键词
flora; lakes; pollen; Svalbard; vegetation; water chemistry;
D O I
10.1023/B:JOPL.0000022543.03382.fa
中图分类号
X [环境科学、安全科学];
学科分类号
08 ; 0830 ;
摘要
Twenty-four lakes on Svalbard were sampled for palaeolimnological studies and are described in terms of their geographical location, catchment characteristics, water chemistry, and flora. No sediment could be retrieved from one of the lakes. There is a close correlation, as detected by redundancy analysis, between lake-water chemistry and catchment variables, particularly bedrock geology and geographical location for 23 lakes. The flora of the lake catchments is statistically related, as shown by canonical correspondence analysis, to bedrock geology, climate (geographical location), and nutrient status (bird impact). Modern pollen assemblages from eleven lakes contain 2-25% far-distance extra-regional pollen. The modern local and regional pollen depositions are dominated by Oxyria digyna, Poaceae, Saxifraga, Salix, and Brassicaceae pollen.
引用
收藏
页码:411 / 431
页数:21
相关论文
共 41 条
[41]   Topographic and altitudinal patterns in plant communities on European arctic islands [J].
Virtanen, RJ ;
Lundberg, PA ;
Moen, J ;
Oksanen, L .
POLAR BIOLOGY, 1997, 17 (02) :95-113