Effect of amendment C:N ratio on plant richness, cover and metal content for acidic Pb and Zn mine tailings in Leadville, Colorado.

Effect of amendment C:N ratio on plant richness, cover and metal content for acidic Pb and Zn mine tailings in Leadville, Colorado. Research Abstract Details 

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Effect of amendment C:N ratio on plant richness, cover and metal content for acidic Pb and Zn mine tailings in Leadville, Colorado. Abstract Text:

Sally Brown,Pam Devolder,Harry Compton,Chuck Henry,Sally Brown,Pam Devolder,Harry Compton,Chuck Henry,

Biosolids and woody debris were applied with target C:N ratios of 8:1 to 50:1 to phytotoxic, acidic, high metal mine tailings to test the effect of amendment C:N ratio on native plant restoration. Total soil C decreased over time indicating an active microbial community. The 8:1 treatment initially had no growth, the highest plant cover for the final sampling (86.8+/-13.8%) and the lowest number of species (3.33+/-0.4). The greatest number of species was in the 30:1 treatment (5.44+/-0.45). Plant cover increased over time for all treatments from 44.7% in 2001 to 71% in 2005. This response was consistent across all except for the 30:1 treatment, which showed a slight decrease in the final year (65+/-11%). Volunteer species and evidence of animal grazing were observed in all amended plots. Results indicate that a C:N ratio>/=20:1 increased species diversity.

Effect of amendment C:N ratio on plant richness, cover and metal content for acidic Pb and Zn mine tailings in Leadville, Colorado. Publishing Authors By Initials

S Brown,P Devolder,H Compton,C Henry,S Brown,P Devolder,H Compton,C Henry,

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Effect of amendment C:N ratio on plant richness, cover and metal content for acidic Pb and Zn mine tailings in Leadville, Colorado. Journal Published:

PUBLICATION TYPE: Research Support, U.S. Gov't,

Journal: Environmental pollution (Barking, Essex : 1987)

VOLUME: 149

Page Numbers: 165-72

Journal Abbreviation: Environ. Pollut.

ISSN: 0269-7491

DAY: 26

MONTH: 03

YEAR: 2007

Effect of amendment C:N ratio on plant richness, cover and metal content for acidic Pb and Zn mine tailings in Leadville, Colorado. Information

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LANGUAGE: eng

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Grant and Affiliation Information for Effect of amendment C:N ratio on plant richness, cover and metal content for acidic Pb and Zn mine tailings in Leadville, Colorado.

AFFILIATION: University of Washington, Box 352100, Seattle, WA 98195, USA. slb@u.washington.edu

Country: England

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MEDLINETA: Environ Pollut

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