Greenhouse gas emissions (N2O, CO2 and CH4) from three forest soils near Vienna (Austria) with different water and nitrogen regimes

被引：0

作者：

Hahn, M ^{[1
]}

Gartner, K ^{[1
]}

Zechmeister-Boltenstern, S ^{[1
]}

机构：

[1] Forstliche Bunderesversuchsanstalt, Inst Forstokol, A-1131 Vienna, Austria

来源：

BODENKULTUR | 2000年 / 51卷 / 02期

关键词：

denitrification; nitrification; nitrous oxide; methane; carbon dioxide;

D O I：

暂无

中图分类号：

S [农业科学];

学科分类号：

09 ;

摘要：

Greenhouse gas production from forest soils was measured during the 1997 vegetation period using closed chambers. Klausenleopoldsdorf 1 and Schottenwald differed significantly in NO3- and NH4+ concentrations but nor in climatic conditions and soil type, while Klausenleopoldsdorf 2 was characterized by high soil water content. N2O emission rates were highest at Schottenwald (70.0 mu g N2O-N m(-2) h(-1)), which was mainly due to higher NO3- availability. The lower N2O emissions at Klausenleopoldsdorf 2 (15.1 mu g N2O-N m(-2) h(-1)) indicated that denitrification proceeded entirely to N-2, conditioned by high soil water content. Klausenleopoldsdorf 1 and Schottenwald showed similar CO2 emissions and functioned as a sink for methane. At Klausenleopoldsdorf 2 methane was produced (30.7 mu g CH4 m(-2) h(-1)) and CO2 emissions were low, which can be attributed to anaerobic soil conditions.

引用

页码：115 / 125

页数：11

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