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Title: The effect of compost on carbon cycling and the active soil microbiota

Abstract

Rangelands cover an estimated 40-70percent of global landmass, approximately one-third of the landmass of the United States and half of California. The soils of this vast land area has high carbon (C) storage capacity, which makes it an important target ecosystem for the mitigation of greenhouse gas emission and effects on climate change, in particular under land management techniques that favor increased C sequestration rates. While microbial communities are key players in the processes responsible for C storage and loss in soils, we have barely shed light on these highly complex processes in part due to the tremendous and seemingly intractable diversity of microbes, largely uncultured, that inhabit soil ecosystems. In our study, we compare Mediterranean grassland soil plots that were amended with greenwaste compost in a single event 6 years ago. Subsampling of control and amended plots was performed in depth increments of 0-10 cm. We present data on greenhouse gas emissions and budgets of carbon, nitrogen, phosphorus, and micronutrients in dependence of compost amendment. Changes in the active members of the soil microbial community were assessed using a novel approach combining flow cytometry and 16S tag sequencing disclosing who is active. This is the first study revealing themore » nature of actively metabolizing microbial community members linked to the geochemical characteristics of compost-amended soil.« less

Authors:
; ; ;
Publication Date:
Research Org.:
Lawrence Berkeley National Lab. (LBNL), Berkeley, CA (United States)
Sponsoring Org.:
USDOE Office of Science (SC)
OSTI Identifier:
1241223
Report Number(s):
LBNL-7050E
DOE Contract Number:
DE-AC02-05CH11231
Resource Type:
Conference
Resource Relation:
Conference: American Geophysical Union's 47th annual Fall Meeting, San Francisco, CA, 12/15 - 12/19/2014
Country of Publication:
United States
Language:
English
Subject:
54 ENVIRONMENTAL SCIENCES; 99 GENERAL AND MISCELLANEOUS; Greenhouse gas emissions, ecosystem, Fluorescence Activitated Cell Sorting, FACS, 16S

Citation Formats

Singer, Esther, Woyke, Tanja, Ryals, Rebecca, and Silver, Whendee. The effect of compost on carbon cycling and the active soil microbiota. United States: N. p., 2014. Web.
Singer, Esther, Woyke, Tanja, Ryals, Rebecca, & Silver, Whendee. The effect of compost on carbon cycling and the active soil microbiota. United States.
Singer, Esther, Woyke, Tanja, Ryals, Rebecca, and Silver, Whendee. Tue . "The effect of compost on carbon cycling and the active soil microbiota". United States. doi:. https://www.osti.gov/servlets/purl/1241223.
@article{osti_1241223,
title = {The effect of compost on carbon cycling and the active soil microbiota},
author = {Singer, Esther and Woyke, Tanja and Ryals, Rebecca and Silver, Whendee},
abstractNote = {Rangelands cover an estimated 40-70percent of global landmass, approximately one-third of the landmass of the United States and half of California. The soils of this vast land area has high carbon (C) storage capacity, which makes it an important target ecosystem for the mitigation of greenhouse gas emission and effects on climate change, in particular under land management techniques that favor increased C sequestration rates. While microbial communities are key players in the processes responsible for C storage and loss in soils, we have barely shed light on these highly complex processes in part due to the tremendous and seemingly intractable diversity of microbes, largely uncultured, that inhabit soil ecosystems. In our study, we compare Mediterranean grassland soil plots that were amended with greenwaste compost in a single event 6 years ago. Subsampling of control and amended plots was performed in depth increments of 0-10 cm. We present data on greenhouse gas emissions and budgets of carbon, nitrogen, phosphorus, and micronutrients in dependence of compost amendment. Changes in the active members of the soil microbial community were assessed using a novel approach combining flow cytometry and 16S tag sequencing disclosing who is active. This is the first study revealing the nature of actively metabolizing microbial community members linked to the geochemical characteristics of compost-amended soil.},
doi = {},
journal = {},
number = ,
volume = ,
place = {United States},
year = {Tue Sep 02 00:00:00 EDT 2014},
month = {Tue Sep 02 00:00:00 EDT 2014}
}

Conference:
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