Microorganisms - ENVIS Centre

Christian Huber*

Abstract

During the past decade bark beetle (Ips typographus) attacks killed nearly all of the Norway spruce [Picea abies (L.) Karst.] stands in the unmanaged zone in the highlands of the Bavarian Forest National Park. This study was conducted to predict if and how long the catastrophic event might cause elevated nitrate (NO₃-) concentration in seepage water, and if the presence of ground vegetation may reduce NO₃- leaching. A chronosequence approach was used to investigate NO₃- leaching before and after the death of trees. Additionally, the impact of ground vegetation coverage on NO₃- leaching was determined. Flux weighted yearly NO₃- concentrations were significantly elevated in the first 5 yr after the dieback compared with intact stands (27 molc L1), with highest concentrations in the fifth year after the

Keywords: Laboratory Validation, Gliricida residues, DSS , microorganisms, Organis farming.

Environmental Information System (ENVIS) provides national and international environmental information in the disciplines of pollution control,microorganisms,envis, toxic chemicals, central and offshore ecology, environmentally sound and appropriate technology, bio-degradation of wastes and environment management.

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Environment Information System Centre - microorganims,envis,environment management, microorganisms, microbes, pollution control, toxic chemicals, central and offshore ecology, environmentally sound and appropriate technology, bio-degradation of wastes.