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Nitrogen biogeochemistry in Binghamt...

Craig, Stephanie Carolynn.

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Nitrogen biogeochemistry in Binghamton, NY, a medium-sized urban ecosystem.

Record Type:	Electronic resources : Monograph/item
Title/Author:	Nitrogen biogeochemistry in Binghamton, NY, a medium-sized urban ecosystem./
Author:	Craig, Stephanie Carolynn.
Published:	Ann Arbor : ProQuest Dissertations & Theses, : 2016,
Description:	200 p.
Notes:	Source: Dissertation Abstracts International, Volume: 78-05(E), Section: B.
Contained By:	Dissertation Abstracts International78-05B(E).
Subject:	Ecology. -
Online resource:	http://pqdd.sinica.edu.tw/twdaoapp/servlet/advanced?query=10196284
ISBN:	9781369461237

Nitrogen biogeochemistry in Binghamton, NY, a medium-sized urban ecosystem.
Craig, Stephanie Carolynn.

Nitrogen biogeochemistry in Binghamton, NY, a medium-sized urban ecosystem. - Ann Arbor : ProQuest Dissertations & Theses, 2016 - 200 p.

Source: Dissertation Abstracts International, Volume: 78-05(E), Section: B.

Thesis (Ph.D.)--State University of New York at Binghamton, 2016.

Humans have altered nitrogen (N) cycling on a global scale, and elevated nitrogen levels are characteristic of urban ecosystems. The major reasons that N is higher in cities include imports of food, fuel and fertilizer. High N export from both point- and nonpoint-sources is common in large cities. While N cycling has been studied in large urban areas, less is known about its cycling in medium-sized cities, such as Binghamton, N.Y. We found that point-source N exported from the Binghamton-Johnson City Wastewater Treatment Plant (B-JC WWTP) was greater than nonpoint-source N exported from eight urban streams to the Susquehanna River, which runs through the Binghamton area. The point-source N fluxes we measured from the B-JC WWTP were high because its function was impaired during the study, causing major environmental impacts on the Susquehanna River. Nonpoint-source N exported from eight urban streams was low, and comparable to N exported from streams of forested watersheds in the region. In an experiment in a roadside ecosystem, experimental deposition of N and road salt (NaCl) did not affect N cycling in roadside soils. However, NaCl negatively impacted C mineralization and soil respiration in situ. In a final experiment, we found that the microbial community of urban stream sediment had the capacity to substantially reduce NO3- through denitrification.

ISBN: 9781369461237Subjects--Topical Terms:

516476
Ecology.

Nitrogen biogeochemistry in Binghamton, NY, a medium-sized urban ecosystem.
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500 $a Source: Dissertation Abstracts International, Volume: 78-05(E), Section: B.
500 $a Adviser: Weixing Zhu.
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520 $a Humans have altered nitrogen (N) cycling on a global scale, and elevated nitrogen levels are characteristic of urban ecosystems. The major reasons that N is higher in cities include imports of food, fuel and fertilizer. High N export from both point- and nonpoint-sources is common in large cities. While N cycling has been studied in large urban areas, less is known about its cycling in medium-sized cities, such as Binghamton, N.Y. We found that point-source N exported from the Binghamton-Johnson City Wastewater Treatment Plant (B-JC WWTP) was greater than nonpoint-source N exported from eight urban streams to the Susquehanna River, which runs through the Binghamton area. The point-source N fluxes we measured from the B-JC WWTP were high because its function was impaired during the study, causing major environmental impacts on the Susquehanna River. Nonpoint-source N exported from eight urban streams was low, and comparable to N exported from streams of forested watersheds in the region. In an experiment in a roadside ecosystem, experimental deposition of N and road salt (NaCl) did not affect N cycling in roadside soils. However, NaCl negatively impacted C mineralization and soil respiration in situ. In a final experiment, we found that the microbial community of urban stream sediment had the capacity to substantially reduce NO3- through denitrification.
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