Skip to Main Content
 

Global Search Box

 
 
 
 

Files

File List


miami1259884546.pdf (390.76 KB)

ETD Abstract Container

Abstract Header

Microbial Nitrogen Cycling Response to Calcium and Phosphorus in Northern Hardwood Forest Soils at the Hubbard Brook Experimental Forest, New Hampshire

Minick, Kevan J.
http://rave.ohiolink.edu/etdc/view?acc_num=miami1259884546

Abstract Details

2009, Master of Science, Miami University, Zoology.
Anthropogenic soil acidification appears to be detrimental to forest health in the northeastern US possibly due to reduced microbial activity influencing plant-available nutrients. In a recent study at the Hubbard Brook Experimental Forest, soil microbial activity was not stimulated by increased pH. Therefore, microbial response to increased pH may depend on the level of calcium added or availability of other nutrients. I tested the effects of Ca and phosphorus additions in the field on microbial nitrogen transformations. High Ca addition reduced net N mineralization. Low Ca addition did not affect N transformations, but the combination of Ca/P addition reduced net N mineralization. Phosphorus addition unexpectedly increased gross nitrification. Results from this study indicate that microbial mineralization is not sensitive to moderate differences in pH or limited by P. Therefore, detrimental effects of acidic deposition to these forests are not likely a result of nutrient deficiencies related to suppression of microbial activity.
Melany Fisk, C (Advisor)
Michael Vanni, J (Committee Member)
Thomas Crist, O (Committee Member)
41 p.
Biogeochemistry; Biology; Ecology; Soil Sciences
gross N mineralization; gross nitrification; nitrogen immobilization; nitrogen cycling; microbial activity; calcium; phosphorus; soil pH

Recommended Citations

Citations

  • Minick, K. J. (2009). Microbial Nitrogen Cycling Response to Calcium and Phosphorus in Northern Hardwood Forest Soils at the Hubbard Brook Experimental Forest, New Hampshire [Master's thesis, Miami University]. OhioLINK Electronic Theses and Dissertations Center. http://rave.ohiolink.edu/etdc/view?acc_num=miami1259884546

    APA Style (7th edition)

  • Minick, Kevan. Microbial Nitrogen Cycling Response to Calcium and Phosphorus in Northern Hardwood Forest Soils at the Hubbard Brook Experimental Forest, New Hampshire. 2009. Miami University, Master's thesis. OhioLINK Electronic Theses and Dissertations Center, http://rave.ohiolink.edu/etdc/view?acc_num=miami1259884546.

    MLA Style (8th edition)

  • Minick, Kevan. "Microbial Nitrogen Cycling Response to Calcium and Phosphorus in Northern Hardwood Forest Soils at the Hubbard Brook Experimental Forest, New Hampshire." Master's thesis, Miami University, 2009. http://rave.ohiolink.edu/etdc/view?acc_num=miami1259884546

    Chicago Manual of Style (17th edition)

miami1259884546
359
© 2009, all rights reserved.
This open access ETD is published by Miami University and OhioLINK.