A 12600 YEAR PERSPECTIVE OF THE ACIDIFICATION OF LILLA-ORESJON, SOUTHWEST SWEDEN

被引：76

作者：

RENBERG, I

机构：

来源：

PHILOSOPHICAL TRANSACTIONS OF THE ROYAL SOCIETY OF LONDON SERIES B-BIOLOGICAL SCIENCES | 1990年 / 327卷 / 1240期

关键词：

D O I：

10.1098/rstb.1990.0073

中图分类号：

Q [生物科学];

学科分类号：

07 ; 0710 ; 09 ;

摘要：

The pH history of Lilla Oresjon was studied by using diatom analyses. Four pH periods were distinguished; 1) an alkaline period (12 600-7800 BP) following deglaciation, 2) a naturally acidic period (7800-2300 BP) when pH decreased from 6.0 to 5.2, 3) a period with higher pH (greater than 6) (2300 BP-1900 A.D.), which started at the same time as agriculture expanded, and 4) the recent acidification period that began with a deterioration phase around 1900 A.D. and developed into an acute acidification phase during the 1960s (pH 4.5). This post-1960 phase has no similarity with any of the previous periods identified. -from Author

引用

页码：357 / 361

页数：5

共 10 条

[1]

BATTARBEE RW, 1984, PHIL T R SOC LOND B, V305, P333

[2]

Bjorck S., 1988, GEOGRAPHICA POLONICA, V55, P37

[3]

CHARLES DF, 1989, IN PRESS ACID PRECIP, V4

[4]

Digerfeldt G., 1988, ACTA ARCHAEOL, V58, P127