Home About us MoEF Contact us Sitemap Tamil Website  
About Envis
Whats New
Research on Microbes
Microbiology Experts
Online Submission
Access Statistics

Site Visitors

blog tracking

J. Environ. Qual.
Vol. 34, No. , 2005, Pages:

Long Lasting Nitrate Leaching after Bark Beetle Attack
in the Highlands of the Bavarian Forest National Park

Christian Huber*


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.

Corresponding author: Phone: xxxxxxxxxx Fax: xxxxxxxxxx

E-mail: b.vanlauwe@cgiar.org


Copyright © 2005 ENVIS Centre ! All rights reserved
This site is optimized for 1024 x 768 screen resolution