期刊
ENVIRONMENTAL POLLUTION
卷 159, 期 10, 页码 2586-2593出版社
ELSEVIER SCI LTD
DOI: 10.1016/j.envpol.2011.06.014
关键词
Long-term change; Revisitation study; Soil acidity; Tree composition; Altitudinal gradient
资金
- Ministry of Education, Youth and Sport of the Czech Republic [1023/3FR 1307]
- Grant Agency of the Czech Republic [206/08/0389]
- Academy of Sciences of the Czech Republic [AV0Z60050516]
- Ministry of Education, Youth and Sport [LC 06073]
- IGA: FES, CULS [42900/1312/3114]
Soil acidification was assessed in the Eastern Sudetes Mountains (Czech Republic) between 1941 and 2003, i.e. before and after the period of major industrial pollution (1950s-1990s). The twenty sites included in our study were distributed along a gradient of altitude ranging 1000 m. Values of pH have decreased in 80-90% of the pairs of samples after the six decades, on average by 0.7 for pH-H2O and 0.6 for pH-KCl. Organic matter increased in the topsoil, probably reflecting a change in decomposition conditions. The most important finding is that the acidification varies along the joint gradient of altitude/tree layer composition, and displays a changing pattern in three soil horizons (A, B and C). Contrary to expectations, most acidified were soils in beech forests at lower elevations. (C) 2011 Elsevier Ltd. All rights reserved.
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