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Nitrogen and Phosphorus Availability in Forests of Varying Ages in the Bartlett Experimental Forest White Mountains, New Hampshire

Ratliff, Tera Jean
http://rave.ohiolink.edu/etdc/view?acc_num=miami1343771632

Abstract Details

2012, Master of Science, Miami University, Zoology.
Human-induced changes such as nitrogen deposition and forest harvest can alter biogeochemical cycling in temperate forests. However, it is still unclear what impacts increased N availability and successional stage have on productivity. Nitrogen (N) and phosphorus (P) availability were examined along an age gradient in northern hardwoods in the Bartlett Experimental Forest, New Hampshire, USA. Net N mineralization decreased with age, but no patterns were discovered for available P. However, there was strong evidence for N and P coupling in these sites with results suggesting that N availability influenced P availability through the production of phosphatase enzymes. The apparent interaction of N and P, via phosphatase, is good evidence that resource optimization processes balance nutrient availability across a wide gradient in fertility. This could be viewed as contributing to colimitation, but it could also be that N is the primary limiting nutrient because of its underlying effects on P availability.
Melany C. Fisk, PhD (Advisor)
Michael J. Vanni, PhD (Committee Member)
Thomas O. Crist, PhD (Committee Member)
47 p.
Biogeochemistry; Ecology; Forestry; Soil Sciences
Colimitation; Nutrient Cycling; Acid Rain; Nitrogen Deposition; Resource Optimization; Terrestrial Nutrient Limitation; Phosphatase; Forest Harvest; Nutrient Coupling; Nitrogen; Phosphorus

Recommended Citations

Citations

  • Ratliff, T. J. (2012). Nitrogen and Phosphorus Availability in Forests of Varying Ages in the Bartlett Experimental Forest White Mountains, New Hampshire [Master's thesis, Miami University]. OhioLINK Electronic Theses and Dissertations Center. http://rave.ohiolink.edu/etdc/view?acc_num=miami1343771632

    APA Style (7th edition)

  • Ratliff, Tera. Nitrogen and Phosphorus Availability in Forests of Varying Ages in the Bartlett Experimental Forest White Mountains, New Hampshire. 2012. Miami University, Master's thesis. OhioLINK Electronic Theses and Dissertations Center, http://rave.ohiolink.edu/etdc/view?acc_num=miami1343771632.

    MLA Style (8th edition)

  • Ratliff, Tera. "Nitrogen and Phosphorus Availability in Forests of Varying Ages in the Bartlett Experimental Forest White Mountains, New Hampshire." Master's thesis, Miami University, 2012. http://rave.ohiolink.edu/etdc/view?acc_num=miami1343771632

    Chicago Manual of Style (17th edition)

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© 2012, all rights reserved.
This open access ETD is published by Miami University and OhioLINK.