語系:
繁體中文
English
說明(常見問題)
回圖書館首頁
手機版館藏查詢
登入
回首頁
切換:
標籤
|
MARC模式
|
ISBD
The Characterization and Survey of I...
~
Buzulencia, Hayley Catherine.
FindBook
Google Book
Amazon
博客來
The Characterization and Survey of Inorganic Sulfur Redox Associated with Wetland Hydrological Fluctuations.
紀錄類型:
書目-電子資源 : Monograph/item
正題名/作者:
The Characterization and Survey of Inorganic Sulfur Redox Associated with Wetland Hydrological Fluctuations./
作者:
Buzulencia, Hayley Catherine.
出版者:
Ann Arbor : ProQuest Dissertations & Theses, : 2019,
面頁冊數:
125 p.
附註:
Source: Masters Abstracts International, Volume: 81-08.
Contained By:
Masters Abstracts International81-08.
標題:
Limnology. -
電子資源:
http://pqdd.sinica.edu.tw/twdaoapp/servlet/advanced?query=27765783
ISBN:
9781392485514
The Characterization and Survey of Inorganic Sulfur Redox Associated with Wetland Hydrological Fluctuations.
Buzulencia, Hayley Catherine.
The Characterization and Survey of Inorganic Sulfur Redox Associated with Wetland Hydrological Fluctuations.
- Ann Arbor : ProQuest Dissertations & Theses, 2019 - 125 p.
Source: Masters Abstracts International, Volume: 81-08.
Thesis (M.S.)--Kent State University, 2019.
This item must not be sold to any third party vendors.
Wetlands are complex ecosystems with unique biogeochemical and hydrological characteristics. These aspects can be traced to the following biogeochemically distinct domains: sediments, porewater, and surface water. Sulfur can play a critical role in aquatic ecosystems, with potential to influence the biogeochemical cycles of freshwater nutrients and metals. Inorganic sulfur can occur in the natural environment in multiple oxidation states. In the presence of oxygen, reduced sulfur readily oxidizes to form sulfate. Wetland hydrology controls the redox states of sulfur, as well as governing the fates trace metals, major cations, and anions in the wetland ecosystem. By examining wetland hydrology and characterizing the biogeochemistry of different wetland domains (sediment, porewater, and surface water), the export and forms of inorganic sulfur in the wetland can be characterized.The study site for this project was a constructed wetland at the Cleveland Metroparks' Watershed Stewardship Center in Parma, Ohio. The study site had interior zones of differing depths and a dynamic hydrologic regime, which could cause a variation in nutrient residence times and transformations within the wetland. To understand the wetland's hydrology and its relationship to sulfate biogeochemistry, interior water levels, outflow discharge, precipitation, water chemistry, sediment chemistry, and porewater chemistry were monitored from June 2015 to October 2016. High concentrations of sulfate were found in the interior zones (arithmeticmean: 185.7 mg/L) and outflow (arithmetic mean: 228.4 mg/L), while inflow concentrations were variable (ranges across inflows: 9.417-902.2 mg/L). Sulfate concentrations in surface water were found to be the highest in the interior and outflow following an extensive drydown period in Summer 2016. High concentrations of sulfate could also signal that sulfide was present in the wetland, but sulfide was below detection in porewater. However, wetland sediments contained acid volatile sulfide bound to metals (average: 173.5 μmol S per g dry weight).To conclude, findings from this thesis have shown that storm hydrology and seasonal interior water level dynamics were both factors that governed sulfate concentrations in the wetland's interior zones and sulfate fluxes out of the wetland's outflow. Since there were higher concentrations in the wetland interior and outflow compared to the inflow concentrations, this suggested an internal source of sulfur in the wetland. Thus, the high concentrations were likely associated with oxidation of sulfide in the sediments during drydown periods.
ISBN: 9781392485514Subjects--Topical Terms:
545788
Limnology.
Subjects--Index Terms:
Biogeochemistry
The Characterization and Survey of Inorganic Sulfur Redox Associated with Wetland Hydrological Fluctuations.
LDR
:04014nmm a2200469 4500
001
2273088
005
20201105110339.5
008
220629s2019 ||||||||||||||||| ||eng d
020
$a
9781392485514
035
$a
(MiAaPQ)AAI27765783
035
$a
(MiAaPQ)OhioLINKkent1574288446961206
035
$a
AAI27765783
040
$a
MiAaPQ
$c
MiAaPQ
100
1
$a
Buzulencia, Hayley Catherine.
$3
3550518
245
1 4
$a
The Characterization and Survey of Inorganic Sulfur Redox Associated with Wetland Hydrological Fluctuations.
260
1
$a
Ann Arbor :
$b
ProQuest Dissertations & Theses,
$c
2019
300
$a
125 p.
500
$a
Source: Masters Abstracts International, Volume: 81-08.
500
$a
Advisor: Jefferson, Anne;Kinsman-Costello, Lauren.
502
$a
Thesis (M.S.)--Kent State University, 2019.
506
$a
This item must not be sold to any third party vendors.
520
$a
Wetlands are complex ecosystems with unique biogeochemical and hydrological characteristics. These aspects can be traced to the following biogeochemically distinct domains: sediments, porewater, and surface water. Sulfur can play a critical role in aquatic ecosystems, with potential to influence the biogeochemical cycles of freshwater nutrients and metals. Inorganic sulfur can occur in the natural environment in multiple oxidation states. In the presence of oxygen, reduced sulfur readily oxidizes to form sulfate. Wetland hydrology controls the redox states of sulfur, as well as governing the fates trace metals, major cations, and anions in the wetland ecosystem. By examining wetland hydrology and characterizing the biogeochemistry of different wetland domains (sediment, porewater, and surface water), the export and forms of inorganic sulfur in the wetland can be characterized.The study site for this project was a constructed wetland at the Cleveland Metroparks' Watershed Stewardship Center in Parma, Ohio. The study site had interior zones of differing depths and a dynamic hydrologic regime, which could cause a variation in nutrient residence times and transformations within the wetland. To understand the wetland's hydrology and its relationship to sulfate biogeochemistry, interior water levels, outflow discharge, precipitation, water chemistry, sediment chemistry, and porewater chemistry were monitored from June 2015 to October 2016. High concentrations of sulfate were found in the interior zones (arithmeticmean: 185.7 mg/L) and outflow (arithmetic mean: 228.4 mg/L), while inflow concentrations were variable (ranges across inflows: 9.417-902.2 mg/L). Sulfate concentrations in surface water were found to be the highest in the interior and outflow following an extensive drydown period in Summer 2016. High concentrations of sulfate could also signal that sulfide was present in the wetland, but sulfide was below detection in porewater. However, wetland sediments contained acid volatile sulfide bound to metals (average: 173.5 μmol S per g dry weight).To conclude, findings from this thesis have shown that storm hydrology and seasonal interior water level dynamics were both factors that governed sulfate concentrations in the wetland's interior zones and sulfate fluxes out of the wetland's outflow. Since there were higher concentrations in the wetland interior and outflow compared to the inflow concentrations, this suggested an internal source of sulfur in the wetland. Thus, the high concentrations were likely associated with oxidation of sulfide in the sediments during drydown periods.
590
$a
School code: 0101.
650
4
$a
Limnology.
$3
545788
650
4
$a
Biogeochemistry.
$3
545717
650
4
$a
Environmental management.
$3
535182
650
4
$a
Geology.
$3
516570
650
4
$a
Hydrologic sciences.
$3
3168407
650
4
$a
Natural resource management.
$3
589570
650
4
$a
Environmental geology.
$3
535218
650
4
$a
Environmental science.
$3
677245
650
4
$a
Water resources management.
$3
794747
653
$a
Biogeochemistry
653
$a
Wetlands
653
$a
Hydrology
653
$a
Watershed hydrology
653
$a
Freshwater
653
$a
Freshwater wetlands
690
$a
0388
690
$a
0793
690
$a
0425
690
$a
0407
690
$a
0595
690
$a
0768
690
$a
0528
690
$a
0474
690
$a
0372
710
2
$a
Kent State University.
$b
College of Arts and Sciences / Department of Geology.
$3
3550519
773
0
$t
Masters Abstracts International
$g
81-08.
790
$a
0101
791
$a
M.S.
792
$a
2019
793
$a
English
856
4 0
$u
http://pqdd.sinica.edu.tw/twdaoapp/servlet/advanced?query=27765783
筆 0 讀者評論
館藏地:
全部
電子資源
出版年:
卷號:
館藏
1 筆 • 頁數 1 •
1
條碼號
典藏地名稱
館藏流通類別
資料類型
索書號
使用類型
借閱狀態
預約狀態
備註欄
附件
W9425322
電子資源
11.線上閱覽_V
電子書
EB
一般使用(Normal)
在架
0
1 筆 • 頁數 1 •
1
多媒體
評論
新增評論
分享你的心得
Export
取書館
處理中
...
變更密碼
登入