oxygen
Stream networks are intimately connected to the landscapes through which they flow and significantly transform nutrients and organic matter that are in transport from landscapes to oceans. This work will quantify the relative influences of throughflow, lateral inputs, and hyporheic (a layer of surface sediments that contains water which exchanges continuously with water in the open channel) regeneration on the seasonal fluxes of C, N, and P in an arctic river network, and determine how these influences will shift under seasonal conditions that are likely to be substantially different in the future. This objective is a logical extension of earlier. This work will focus on seasonal dynamics at different river reach scales (1st to 4th order streams) and will lay the groundwork for a whole river network model to integrate the influences of throughflow, lateral inputs, hyporheic regeneration, and in-stream metabolism on C, N, and P fluxes through an entire river network.
For more information see project's web site: Changing Seasonality and Arctic Stream Networks
| Abstract | |
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| William "Breck" Bowden, 2013 CSASN TASCC Nutrient additions to streams near Toolik Field Sation, Alaska 2010 to 2012. 10.6073/pasta/a4716dc93844548b60384a899a23e794 |
The Changing Seasonality of Artic Stream Systems (CSASN) was active from 2010 to 2012. The CSASN goal was to quantify the relative influences of throughflow, lateral inputs, and hyporheic regeneration on the seasonal fluxes C, N, and P in an arctic river network, and to determine how these influences might shift under seasonal conditions that are likely to be substantially different in the future. There were a number of TASCC and Plateau nutrient additions at each sampling location. |
| William "Breck" Bowden, 2013 CSASN Well and Mini-piezomenter Samples. 10.6073/pasta/3597abe9989139bccab4d0d0b51367f0 |
The Changing Seasonality of Arctic Stream Systems (CSASN) was active from 2010 to 2012. The CSASN goal was to quantify the relative influences of through flow, lateral inputs, and hyporheic regeneration on the seasonal fluxes C, N, and P in an arctic river network, and to determine how these influences might shift under seasonal conditions that are likely to be substantially different in the future. During the project, well and mini-piezometer samples were collected from various depths near stream channels and analyzed for a variety of nutrients. |
| William "Breck" Bowden, 2013 CSASN Channel Nutrients from 2010 to 2012 in I8 Inlet, I8 Outlet, Peat Inlet and Kuparuk Rivers. 10.6073/pasta/d19adb5a8fe01f67806e5afccf283b52 |
The Changing Seasonality of Arctic Stream Systems (CSASN) was active from 2010 to 2012. The CSASN goal was to quantify the relative influences of through flow, lateral inputs, and hyporheic regeneration on the seasonal fluxes C, N, and P in an arctic river network, and to determine how these influences might shift under seasonal conditions that are likely to be substantially different in the future. During the project, background samples were collected from four stream channels and analyzed for a variety of nutrients. |
| William "Breck" Bowden, 2013 CSASN Nutients: Tracer addition for spiraling curve characterization from 2010 to 2012. 10.6073/pasta/1a99d8b18f6311f5047665cd7c756512 |
The Changing Seasonality of Arctic Stream Systems (CSASN) was active from 2010 to 2012. The CSASN goal was to quantify the relative influences of through flow, lateral inputs, and hyporheic regeneration on the seasonal fluxes C, N, and P in an arctic river network, and to determine how these influences might shift under seasonal conditions that are likely to be substantially different in the future. There were a number of TASCC and Plateau nutrient additions at each sampling location. |
| William "Breck" Bowden, 2013 Whole stream metabolism (I8 Inlet, I8 Outlet; Peat Inlet; Kuparuk): Changing seasonality of Arctic stream systems project. 10.6073/pasta/b2f42a2744d8526d06c522f74c273824 |
The Changing Seasonality of Arctic Stream Systems (CSASN) was active from 2010 to 2012. The CSASN goal was to quantify the relative influences of through flow, lateral inputs, and hyporheic regeneration on the seasonal fluxes C, N, and P in an arctic river network, and to determine how these influences might shift under seasonal conditions that are likely to be substantially different in the future. Whole Stream Metabolism was calculated using dissolved oxygen, discharge, stage, and temperature measured by sounds deployed in the field. |
| William "Breck" Bowden, 2013 Nutrient and tracer amounts for Tracer Additions for Spiraling Curve Characterization studies on arctic streams near Toolik Field Station, Alaska 2010 -2012.. 10.6073/pasta/6b0e4feffc9bf3cc093dd668496d5d1b |
The Changing Seasonality of Arctic Stream Systems (CSASN) was active from 2010 to 2012. The CSASN goal was to quantify the relative influences of through flow, lateral inputs, and hyporheic regeneration on the seasonal fluxes C, N, and P in an arctic river network, and to determine how these influences might shift under seasonal conditions that are likely to be substantially different in the future. There were a number of tracer addition for spiraling curve characterization (TASCC) and Plateau nutrient additions at each sampling location. |
| Abstract | |
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| Jianwu Tang, Ned Fetcher, Michael L Moody, 2019 Absorbed soil nutrients on ion exchange membranes in the reciprocal transplant gardens at Toolik Lake, Coldfoot, and Sagwon in 2016. 10.6073/pasta/86225c3c1a98be0780d092f8b8bf9943 |
Transplant gardens at Toolik Lake and Sagwon were established in 2014. At each location, 60 tussocks each from ecotypes of Eriophorum vaginatum from Coldfoot (CF, 67°15′32″N, 150°10′12″W), Toolik Lake (TL, 68°37′44″N, 149°35′0″W), and Sagwon (SG, 69°25′26″N, 148°42′49″W) were transplanted. At the reciprocal transplant gardens, ion exchange membranes were used to measure nutrient availability over two time periods: Early season (June) and mid season (July). Membranes were deployed in the field for either 20 or 21 days, depending on travel constraints. |
| Abstract | |
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| George Kling, Knute Nadelhoffer, Martin Sommerkorn, 2008 Pre-labeled dissolved inorganic carbon, carbon dioxide, and methane from experiemental plots near Toolik Lake, AK from 2006. 10.6073/pasta/df3e5b9afcdb14e04ee72141d8e393a1 |
Dissolved inorganic carbon, carbon dioxide, and methane in waters from pre-labeled wet sedge plots near Toolik Lake, AK during the summer of 2006. |
| Loretta Johnson, Knute Nadelhoffer, George Kling, 2003 Soil Respirations from experiemental plots near Toolik Lake, AK for 2001. 10.6073/pasta/c2420e7c697014cac6b72b5b43a02129 |
Soil respiration of carbon dioxide, and methane in waters from wet sedge plots near Toolik Lake, AK during the summer of 2001. |
| George Kling, Knute Nadelhoffer, Martin Sommerkorn, 2005 Pre-labeled dissolved inorganic carbon, carbon dioxide, and methane from experiemental plots near Toolik Lake, AK from 2003. 10.6073/pasta/a473f26d8ebc8d19c6248ff692a79471 |
Dissolved inorganic carbon, carbon dioxide, and methane in waters from pre-labeled wet sedge plots near Toolik Lake, AK during the summer of 2003. |
| George Kling, Knute Nadelhoffer, Martin Sommerkorn, 2007 Pre-labeled dissolved inorganic carbon, carbon dioxide, and methane from experiemental plots near Toolik Lake, AK from 2005. 10.6073/pasta/5c425c007b9ae104fdc0939a6c1eef8f |
Dissolved inorganic carbon, carbon dioxide, and methane in waters from pre-labeled wet sedge plots near Toolik Lake, AK during the summer of 2005. |
| Loretta Johnson, Knute Nadelhoffer, George Kling, 2003 Microbial Respirations from experiemental plots near Toolik Lake, AK for 2001. 10.6073/pasta/4ef85017f9da938e69f8c7150156e66a |
Microbial respiration of carbon dioxide, and methane in waters from wet sedge plots near Toolik Lake, AK during the summer of 2001. |
| Loretta Johnson, Knute Nadelhoffer, George Kling, 2006 Soil Respirations from experiemental plots near Toolik Lake, AK for 2004. 10.6073/pasta/0ec1429f90c86f186f59a1f0e412c2b2 |
Soil respiration of carbon dioxide, and methane in waters from wet sedge plots near Toolik Lake, AK during the summer of 2004. |
| George Kling, Knute Nadelhoffer, Martin Sommerkorn, 2002 Pre-labeled dissolved inorganic carbon, carbon dioxide, and methane from experiemental plots near Toolik Lake, AK from 2000. 10.6073/pasta/6392b245b7b82587aa15c9548e0396b1 |
Dissolved inorganic carbon, carbon dioxide, and methane in waters from pre-labeled wet sedge plots near Toolik Lake, AK during the summer of 2000. |
| Loretta Johnson, Knute Nadelhoffer, George Kling, 2004 Soil Respirations from experiemental plots near Toolik Lake, AK for 2002. 10.6073/pasta/7ae75645e026783edfd8eca8e8973fd6 |
Soil respiration of carbon dioxide, and methane in waters from wet sedge plots near Toolik Lake, AK during the summer of 2002. |
| George Kling, Knute Nadelhoffer, Martin Sommerkorn, 2007 Dissolved and gaseous 14C from experimental plots near Toolik Lake, AK from 2005. 10.6073/pasta/66cfe40e5f880ed46718bd01763a495f |
This file contains the Specific Activity of 14C from dissolved and gaseous species of carbon sampled from tussock tundra and wet sedge plots near Toolik Lake, AK during the summer of 2005. |
| Loretta Johnson, Knute Nadelhoffer, George Kling, 2005 Soil Respirations from experiemental plots near Toolik Lake, AK for 2003. 10.6073/pasta/439b02d9438238fb7ae6afe590ffd2ed |
Soil respiration of carbon dioxide, and methane in waters from wet sedge plots near Toolik Lake, AK during the summer of 2003. |
| George Kling, Knute Nadelhoffer, Martin Sommerkorn, 2003 Pre-labeled dissolved inorganic carbon, carbon dioxide, and methane from experiemental plots near Toolik Lake, AK from 2001. 10.6073/pasta/99ca515d042b73de19e0c31b7011beef |
Dissolved inorganic carbon, carbon dioxide, and methane in waters from pre-labeled wet sedge plots near Toolik Lake, AK during the summer of 2001. |
| Loretta Johnson, Knute Nadelhoffer, George Kling, 2007 Soil Respirations from experiemental plots near Toolik Lake, AK for 2005. 10.6073/pasta/9fb33bf8c4cb6992ed29077cd5f3288c |
Soil respiration of carbon dioxide, and methane in waters from wet sedge plots near Toolik Lake, AK during the summer of 2005. |
| Abstract | |
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| George Kling, 2012 Chemistry from thermokarst impacted soils, lakes, and streams near Toolik Lake Alaska, 2008-2011.. 10.6073/pasta/2e55d1587290e642938ac1a6caed6ec6 |
This file contains data collected from thermokarst impacted soils, lakes, and streams near Toolik Lake Alaska. Data are also presented for experimental manipulations of water (e.g., time course experiments). Sample descriptors include a unique sortchem #, site, date, time, depth, distance, elevation, treatment, date-time, category, and water type (e.g., lake, surface, soil). Physical/chemical measures collected in the field include temperature, conductivity, and pH. |
| Abstract | |
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| George Kling, 2013 Biogeochemistry data set for soil waters, streams, and lakes near Toolik on the North Slope of Alaska.. 10.6073/pasta/574fd24522eee7a0c07fc260ccc0e2fa |
Data file describing the biogeochemistry of samples collected at various sites near Toolik Lake, North Slope of Alaska. Sample site descriptors include a unique assigned number (sortchem), site, date, time, depth, distance (downstream), elevation, treatment, date-time, category, and water type (lake, surface, soil). Physical measures collected in the field include temperature (water, soil, well water), conductivity, pH, average thaw depth, well height, discharge, stage height, and light (lakes). |
| George Kling, 2013 Biogeochemistry data set for soil waters, streams, and lakes near Toolik on the North Slope of Alaska, 2011.. 10.6073/pasta/362c8eeac5cad9a45288cf1b0d617ba7 |
Data file describing the biogeochemistry of samples collected at various sites near Toolik Lake, North Slope of Alaska. Sample site descriptors include a unique assigned number (sortchem), site, date, time, depth, distance (downstream), elevation, treatment, date-time, category, and water type (lake, surface, soil). Physical measures collected in the field include temperature (water, soil, well water), conductivity, pH, average thaw depth, well height, discharge, stage height, and light (lakes). |
| George Kling, 2022 Biogeochemistry data set for soil waters, streams, and lakes near Toolik Lake on the North Slope of Alaska, 2012 through 2020. 10.6073/pasta/4e25db9ae9372f5339f2795792814845 |
Data file of the biogeochemistry of samples collected at various sites near Toolik Lake, North Slope of Alaska. Sample site descriptors include a unique assigned number (sortchem), site, date, time, depth, distance (downstream from a reference location), elevation, treatment, date-time, category, and water type (lake, surface, soil). Physical measures collected in the field include temperature (water, soil, well water), conductivity, pH, and average thaw depth in soil. Chemical analyses for the sample include alkalinity; dissolved inorganic and organic carbon (DIC and DOC); dissolved gas |
| Abstract | |
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| William "Breck" Bowden, 2020 Arctic LTER Streams Chemistry Toolik Field Station, Alaska 1978 to 2019.. 10.6073/pasta/3faacd18b63b3bacc5a0dbd6f09660e1 |
Since 1983, the Streams Project at the Toolik Field Station has monitored physical, chemical, and biological parameters in a 5-km, fourth-order reach of the Kuparuk River near its intersection with the Dalton Highway and the Trans-Alaska Pipeline. In 1989, similar studies were begun on a 3.5-km, third-order reach of a second stream, Oksrukuyik Creek. |
| Abstract | |
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| William "Breck" Bowden, 2019 Kuparuk River Whole Stream Metabolism Arctic LTER, Toolik Field Station Alaska 2012-2017. 10.6073/pasta/cd383e684fb53d1b1d36712720b31c32 |
The Kuparuk River has been the central research location on the impact of added phosphorus to arctic streams. Additions of phosphorus occred since 1983. Today, 4 specific reaches show certain characteristics based on the years that they recieved fertilization. Whole Stream Metabolism is a way to quantify primary production of this stream system. Calculations were done using dissolved oxygen, discharge, stage, light and temperature measured by sondes and other equipment strategically deployed in the field at locations to quantify each of the unique stream reaches. |
| Abstract | |
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| William "Breck" Bowden, 2014 ARCSS/TK water chemistry and epilithon characterization from the Noatak National Preserve, Kelly River region (2010) and Feniak Lake region (2011).. 10.6073/pasta/39ed7afdfd1ad36019bd3b02c64d1bd1 |
These data are from two remote field campaigns in the Noatak National Preserve. Various thermokarst features and their receiving streams were sampled and characterized. A suite of water chemistry (nutrients, major anions and cations, total suspended sediment) and benthic variables (particulate carbon, nitrogen and phosphorus, and chlorophyll-a) were measured at 6 major sites (2 in 2010 and 4 in 2011). There were additional sites sampled for water chemistry above and below thermokarst features in 2011. |
| William "Breck" Bowden, 2014 ARCSS/TK water chemistry and total suspended sediment data from I-Minus2 and Toolik River thermokarsts and receiving streams, near Toolik Field Station, Alaska, summers 2006-2013.. 10.6073/pasta/36446317e7682f1b03c0f7def5b16fcc |
Water samples were taken at 5 locations at both I-Minus2 and Toolik River thermokarst sites (10 sampling locations total). A combination of ISCO and manual grab samples were taken depending on the sampling location and year. |
| William "Breck" Bowden, 2014 ARCSSTK WSM. 10.6073/pasta/11eb4e1ce9dfb4413cb869e5fc11472f |
The (ARCSSTK) did extensive research during 2009-2011 field seasons in Arctic Alaska. Specifically, the ARCSSTK goal Streams goal was to quantify the relative influences of thermokarst inputs on the biogeochemical structure and function of receiving streams. Whole Stream Metabolism was calculated using dissolved oxygen, discharge, stage, and temperature measured by sondes deployed in the field. |
| Abstract | |
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| George Kling, 2019 Biogeochemistry data set for Imnavait Creek Weir on the North Slope of Alaska 2002-2018. 10.6073/pasta/733c73c6ebffeaec6970b2b0f4dddfe6 |
Data file containing biogeochemical data of water samples collected in Imnavait Creek, North Slope of Alaska. Sample site descriptors include a unique assigned number (sortchem), site, date, time, depth, distance (downstream), and elevation. Values of variables measured in the field include temperature, conductivity, pH. Chemical analysis for samples include alkalinity, dissolved organic carbon, inorganic and total dissolved nutrients particulate carbon, nitrogen, and phosphorus, cations and anions. |
| Abstract | |
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| Anne Giblin, George Kling, 2022 Physical and chemical data for various lakes near Toolik Research Station, Arctic LTER. Summer 1975 to 1989.. 10.6073/pasta/588e78d0d92ee947349eda23402543f6 |
Decadal file describing the physical lake parameters recorded at various lakes near Toolik Research Station during summers from 1975 to 1989. Depth profiles at the sites of physical measures were collected in situ. Values measured included temperature, conductivity, pH, dissolved oxygen, Chlorophyll A, Secchi disk depth and PAR. Note that some sample depths also have additional parameters measured and available in separate files for water chemistry and primary production. |
| Anne Giblin, George Kling, 2001 Physical and chemical data for various lakes near Toolik Research Station, Arctic LTER. Summer 2000 to 2009. 10.6073/pasta/791e3cb6288f75f602f23ef3e5532017 |
Decadal file describing the physical/chemical values recorded at various lakes near Toolik Research Station during summers from 2000 to 2009. Sample site descriptors include site, date, time, depth. Depth profiles of physical measures collected in situ with Hydrolab Datasonde in the field include temperature, conductivity, pH, dissolved oxygen in both percent saturation and mg/l, SCUFA chlorophyll-a values in both volts and µg/l, and PAR. |
| Anne Giblin, George Kling, 1991 Physical and chemical data for various lakes near Toolik Research Station, Arctic LTER. Summer 1990 to 1999. 10.6073/pasta/1fd85582de93a281e5e5d3b80df97b52 |
Decadal file describing the physical/chemical values recorded at various lakes near Toolik Research Station during summers from 1990 to 1999. Sample site descriptors include site, date, time, depth. Depth profiles of physical measures collected in situ with Hydrolab Datasonde in the field include temperature, conductivity, pH, dissolved oxygen in both percent saturation and mg/l, SCUFA chlorophyll-a values in both volts and µg/l, and PAR. |
| Anne Giblin, George Kling, 2021 Physical and chemical data for various lakes near Toolik Research Station, Arctic LTER. Summer 2010 to 2021. 10.6073/pasta/76ae1339a928d85193eb15bbe88cee75 |
Decadal file describing the physical/chemical values recorded at various lakes near Toolik Research Station. Sample site descriptors include site, date, time, depth. Depth profiles of physical measures collected in situ with Hydrolab Datasonde in the field include temperature, conductivity, pH, dissolved oxygen in both percent saturation and mg/l, SCUFA chlorophyll-a values in both volts and µg/l, and PAR. |
| Abstract | |
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| Yueyang Jiang, 2016 Long-term changes in tundra carbon balance following wildfire, climate change and potential nutrient addition, a modeling analysis.. 10.6073/pasta/3c28308d774de3b01a416bd4cb597067 |
A study investigating the mechanisms that control long-term response of tussock tundra to fire and to increases in air temperature, CO2, nitrogen deposition and phosphorus weathering. The MBL MEL was used to simulate the recovery of three types of tussock tundra, unburned, moderately burned, and severely burned in response to changes in climate and nutrient additions. The simulations indicate that the recovery of nutrients lost during wildfire is difficult under a warming climate because warming increases nutrient cycles and subsequently leaching within the ecosystem. |
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| Gaius Shaver, Yuriko Yano, 2009 water chemistry of Imnavait watershed during 2002-2004. 10.6073/pasta/6a2e2065b9039335ac7a2b229204ecd6 |
Water chemistry (NO3, NH4, TDN, DON, DOC) from Imnavait watershed along hillslope. Sample waters were either collected by lysimeters, needle with syringe, or extracting soil with water or 1N KCl. |
| Gaius Shaver, Yuriko Yano, 2006 NO3 and NH4 collected by resin bags in 15N addition plots during 2003-2004. 10.6073/pasta/c98aee0d4a8c4023107c26588e6227d5 |
Concentrations of NO3 and NH4 and d15N of NO3 and NH4 collected on resin bags from 15N addition plots along hillslope in Imnavait watershed. |
| Abstract | |
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| Gaius Shaver, Yuriko Yano, 2009 Chloroform-extractableN and d15N within 15N addition plots for Aug 2003. 10.6073/pasta/3afcfb4b01223d351944947a7881a2d6 |
Pool size and d15N values for chloroform-extractable N, extractable-N, and non-extractable N pools. Samples collected in Aug. 2003 from 1st Organic Layer of 15N addition plots in Imnavait watershed. 1st Organic Layer = the upper 10 cm of organic soil or, if the organic layer was < 10 cm thick, the entire layer (e.g., there was never > 4 cm of organic soil at Crest). |
