M. E. Gallagher
Rice University
10 Papers
1 Citations
M. E. Gallagher is an academic researcher from Rice University. The author has contributed to research in topics: Soil organic matter & Soil carbon. The author has an hindex of 7, co-authored 10 publications.
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Papers
Biochar-induced changes in soil hydraulic conductivity and dissolved nutrient fluxes constrained by laboratory experiments.
TL;DR: The addition of biochar can increase or decrease soil drainage, and suggests that any potential improvement of water delivery to plants is dependent on soil type, biochar amendment rate, and biochar properties.
Impacts of biochar concentration and particle size on hydraulic conductivity and DOC leaching of biochar-sand mixtures
Zuolin Liu,Brandon Dugan,Caroline A. Masiello,Rebecca T. Barnes,M. E. Gallagher,Helge M. Gonnermann +5 more
TL;DR: In this article, the effects of biochar concentration and particle size on hydraulic conductivity (K ) and dissolved organic carbon (DOC) in leachate were assessed. And the authors found that the decrease of K associated with coarser biochar was caused by the bimodal particle size distribution.
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Evaluating two experimental approaches for measuring ecosystem carbon oxidation state and oxidative ratio
TL;DR: In this paper, the authors compare two methods for measuring the degree of oxidation of organic carbon (Cox) and ecosystem oxidative ratio (OR), the molar ratio of O2 to CO2 fluxes associated with net ecosystem exchange.
Soil carbon and nitrogen responses to nitrogen fertilizer and harvesting rates in switchgrass cropping systems
Zachary P. Valdez,William C. Hockaday,Caroline A. Masiello,M. E. Gallagher,G. Philip Robertson +4 more
TL;DR: In this paper, a 4-year-old switchgrass system following conversion from row crop agriculture at the W.K. Kellogg Biological Station in southwest Michigan was evaluated and it was found that twice-annual harvesting caused a reduction of C and N stocks in the relatively labile roots and free-particulate organic matter pools.
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Biochemical suitability of crop residues for cellulosic ethanol: disincentives to nitrogen fertilization in corn agriculture.
M. E. Gallagher,William C. Hockaday,Caroline A. Masiello,Sieglinde S. Snapp,Claire P. McSwiney,Jeff Baldock +5 more
TL;DR: It is suggested that even when corn is grown for grain, benefits of fertilization decline rapidly after the ecosystem's N demands are met, while heavy application of fertilizer yields minimal grain benefits and almost no benefits in residue carbohydrates, while degrading the cellulosic ethanol feedstock quality and soil carbon sequestration capacity.
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