R
Ronald Amundson
Researcher at University of California, Berkeley
Publications - 230
Citations - 18797
Ronald Amundson is an academic researcher from University of California, Berkeley. The author has contributed to research in topics: Soil water & Soil organic matter. The author has an hindex of 71, co-authored 224 publications receiving 16443 citations. Previous affiliations of Ronald Amundson include University of Hawaii & Boyce Thompson Institute for Plant Research.
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Journal ArticleDOI
A new view of the tree of life
Laura A. Hug,Laura A. Hug,Brett J. Baker,Karthik Anantharaman,Christopher T. Brown,Alexander J. Probst,Cindy J. Castelle,Cristina N. Butterfield,Alex W Hernsdorf,Yuki Amano,Kotaro Ise,Yohey Suzuki,Natasha Dudek,David A. Relman,David A. Relman,Kari M. Finstad,Ronald Amundson,Brian C. Thomas,Jillian F. Banfield,Jillian F. Banfield +19 more
TL;DR: New genomic data from over 1,000 uncultivated and little known organisms, together with published sequences, are used to infer a dramatically expanded version of the tree of life, with Bacteria, Archaea and Eukarya included.
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Global patterns of the isotopic composition of soil and plant nitrogen
Ronald Amundson,Amy T. Austin,Edward A. G. Schuur,Edward A. G. Schuur,Kyungsoo Yoo,Virginia Matzek,Virginia Matzek,Carol Kendall,A. Uebersax,D. L. Brenner,W. T. Baisden,W. T. Baisden +11 more
TL;DR: For example, this article found that soil and plant δ15N values systematically decreased with increasing mean annual precipitation (MAP) and decreasing mean annual temperature (MAT), suggesting a systematic change in the source of plant available N (organic/NH4+ versus NO3−) with climate.
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Soil and human security in the 21st century
Ronald Amundson,Asmeret Asefaw Berhe,Jan W. Hopmans,Carolyn Olson,A. Ester Sztein,Donald L. Sparks +5 more
TL;DR: Recent advances in understanding global soil resources, including how carbon stored in soil responds to anthropogenic warming are reviewed, reveal the severity of soil-related issues at stake for the remainder of this century and the need to rapidly regain a balance to the physical and biological processes that drive and maintain soil properties.
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Rapid exchange between soil carbon and atmospheric carbon dioxide driven by temperature change
TL;DR: In this paper, a comparison of 14C (carbon-14) in archived (pre-1963) and contemporary soils taken along an elevation gradient in the Sierra Nevada, California, demonstrates rapid (7 to 65 years) turnover for 50 to 90 percent of carbon in the upper 20 centimeters of soil (A horizon soil carbon).
Journal ArticleDOI
The Carbon Budget in Soils
TL;DR: In this paper, the authors review the processes responsible for maintaining the global soil C reservoir and what is known about how it responds to direct and indirect human perturbations, and present a model to evaluate the response of the C reservoir to human disturbance.