- The study examined growth rates of sugar maple and yellow birch trees in a calcium-fertilized watershed (W1) versus an unfertilized reference watershed (W3) at Hubbard Brook Experimental Forest.
- Tree cores were collected and ring widths measured, finding that sugar maple growth increased more in the fertilized watershed while the effect on yellow birch was unclear.
- Statistical analysis found the difference in mean growth between the two watersheds was significant for both species. The results provide more details on the positive effects of calcium fertilization found in a previous study.
The primary goals of this project were to address public safety concerns, stabilize an eroded channel by using natural stream design techniques and promote the growth of native vegetation. The natural channel design techniques used, such as a reinforced bed mix riffle sections and step pools, reduce the flow velocity, provide stability, and enhance water quality along the streams leading to the Chesapeake Bay. The disturbed areas of the site were restored with native shrubs, plants and trees.
The primary goals of this project were to address public safety concerns, stabilize an eroded channel by using natural stream design techniques and promote the growth of native vegetation. The natural channel design techniques used, such as a reinforced bed mix riffle sections and step pools, reduce the flow velocity, provide stability, and enhance water quality along the streams leading to the Chesapeake Bay. The disturbed areas of the site were restored with native shrubs, plants and trees.
A presentation discussing spatial patterns of CO2 fluxes across litter amended, non-amended and native soils on cotton farms in southern NSW by Dr Jackie Webb, Deakin University, to Soil Science Australia's Riverina branch workshop on "Parna and Cotton Soils" held at Yanco on 29 April 2021.
PhD research presentation at the workshop of the Climate Food and Farming Network, Dec. 2-4 at Aarhus University, Foulum. The Climate Food and Farming Network is an initiative of Copenhagen U., Aarhus U., and the CGIAR Research Program on Climate Change, Agriculture and Food Security.
Effects of freshwater restoration on carbon cycling in wetlands with salt and...DongYoonLee8
Preliminary summary for wetland restoration project. Short-term (~1 year) freshwater restoration lowered salinity and phosphorus (P) concentrations in porewater of the saltwater and saltwater+P treatments. Legacy effects of salt and P remained and continued to stimulate aboveground marsh growth. The enhanced marsh growth was likely caused by rapid recycling of nutrients stored in sawgrass litter. Net ecosystem metabolism is used a proxy for ecosystem balance and suggests that saltwater intrusion in Florida Everglades can disrupt carbon cycling. Everglades wetland will be more vulnerable to sea-level rise due to accelerated soil carbon loss.
Quantifying terrestrial ecosystem carbon stocks for future GHG mitigation, su...ExternalEvents
This presentation was presented during the 2 Parallel session on Theme 3.1, Managing SOC in: Soils with high SOC – peatlands, permafrost, and black soils, of the Global Symposium on Soil Organic Carbon that took place in Rome 21-23 March 2017. The presentation was made by Ms. Michelle Garneau from Université du Québec á Montréal - Canada, in FAO Hq, Rome
The Innisvale Drive Outfall Restoration project was substantially completed on December 11, 2018. The primary goals of this project in the Popes Head Creek Watershed were to address public safety concerns, stabilize a deeply eroded channel, and improve water quality. The natural channel design techniques used, such as a reinforced bed mix riffle sections and step pools, reduce the flow velocity, provide stability, and enhance water quality along the stream leading to the Chesapeake Bay. The disturbed areas of the site were restored with native shrubs, plants and trees.
Carbon sequestration through the use of biosolids in soils of the Pampas reg...Silvana Torri
Como citar este trabajo
Torri S, Lavado R. 2011. Carbon sequestration through the use of biosolids in soils of the Pampas region, Argentina. In: Environmental Management: Systems, Sustainability and Current Issues.Editor: H. C. Dupont, Nova Science Publishers, Inc., Hauppauge, NY 11788,ISBN: 978-1-61324-733-4.pag. 221-236, 336 p
Mangrove emission factors: Scientific background on key emission factors (st...CIFOR-ICRAF
Presented by Sigit D. Sasmito, Research Assisstant, National University of Singapore, at Online Workshop Capacity Building on the IPCC 2013 Wetlands Supplement, FREL Diagnostic and Uncertainty Analysis, 20-22 September 2021
Where Land and Water Meet - Richard Sykes from East Bay Municipal Utility Dis...Annie Burke
On March 17, 2016 (St Patty's Day!) we convened a Gathering with 4 water agencies to talk about land stewardship, drought, and partnerships. More info over at: http://openspacecouncil.org/community-events/gatherings/
Assessing the potential of soil organic carbon sequestration in African soilsExternalEvents
This presentation was presented during the 2 Parallel session on Theme 2, Maintaining and/or increasing SOC stocks for climate change mitigation and adaptation and Land Degradation Neutrality, of the Global Symposium on Soil Organic Carbon that took place in Rome 21-23 March 2017. The presentation was made by Ms. Tantely Razafimbelo, from University of Antananarivo and CASA - Madagascar, in FAO Hq, Rome
This presentation was presented during the Plenary 1, Opening Ceremony of the Global Symposium on Soil Organic Carbon that took place in Rome 21-23 March 2017. The presentation was made by Mr. Luca Montanarella from EU Commission’s Joint Research Centre, in FAO Hq, Rome
Accounting for Carbon in Australia’s Coastal WetlandsCIFOR-ICRAF
Presented by Tertius de Kluyver (Senior Policy Analyst at the Department of the Environment of the Government of Australia) at "Steps towards Blue Carbon mitigation under NDCs in Latin America and the Caribbean - Session 2" on 23 July 2020
A presentation discussing spatial patterns of CO2 fluxes across litter amended, non-amended and native soils on cotton farms in southern NSW by Dr Jackie Webb, Deakin University, to Soil Science Australia's Riverina branch workshop on "Parna and Cotton Soils" held at Yanco on 29 April 2021.
PhD research presentation at the workshop of the Climate Food and Farming Network, Dec. 2-4 at Aarhus University, Foulum. The Climate Food and Farming Network is an initiative of Copenhagen U., Aarhus U., and the CGIAR Research Program on Climate Change, Agriculture and Food Security.
Effects of freshwater restoration on carbon cycling in wetlands with salt and...DongYoonLee8
Preliminary summary for wetland restoration project. Short-term (~1 year) freshwater restoration lowered salinity and phosphorus (P) concentrations in porewater of the saltwater and saltwater+P treatments. Legacy effects of salt and P remained and continued to stimulate aboveground marsh growth. The enhanced marsh growth was likely caused by rapid recycling of nutrients stored in sawgrass litter. Net ecosystem metabolism is used a proxy for ecosystem balance and suggests that saltwater intrusion in Florida Everglades can disrupt carbon cycling. Everglades wetland will be more vulnerable to sea-level rise due to accelerated soil carbon loss.
Quantifying terrestrial ecosystem carbon stocks for future GHG mitigation, su...ExternalEvents
This presentation was presented during the 2 Parallel session on Theme 3.1, Managing SOC in: Soils with high SOC – peatlands, permafrost, and black soils, of the Global Symposium on Soil Organic Carbon that took place in Rome 21-23 March 2017. The presentation was made by Ms. Michelle Garneau from Université du Québec á Montréal - Canada, in FAO Hq, Rome
The Innisvale Drive Outfall Restoration project was substantially completed on December 11, 2018. The primary goals of this project in the Popes Head Creek Watershed were to address public safety concerns, stabilize a deeply eroded channel, and improve water quality. The natural channel design techniques used, such as a reinforced bed mix riffle sections and step pools, reduce the flow velocity, provide stability, and enhance water quality along the stream leading to the Chesapeake Bay. The disturbed areas of the site were restored with native shrubs, plants and trees.
Carbon sequestration through the use of biosolids in soils of the Pampas reg...Silvana Torri
Como citar este trabajo
Torri S, Lavado R. 2011. Carbon sequestration through the use of biosolids in soils of the Pampas region, Argentina. In: Environmental Management: Systems, Sustainability and Current Issues.Editor: H. C. Dupont, Nova Science Publishers, Inc., Hauppauge, NY 11788,ISBN: 978-1-61324-733-4.pag. 221-236, 336 p
Mangrove emission factors: Scientific background on key emission factors (st...CIFOR-ICRAF
Presented by Sigit D. Sasmito, Research Assisstant, National University of Singapore, at Online Workshop Capacity Building on the IPCC 2013 Wetlands Supplement, FREL Diagnostic and Uncertainty Analysis, 20-22 September 2021
Where Land and Water Meet - Richard Sykes from East Bay Municipal Utility Dis...Annie Burke
On March 17, 2016 (St Patty's Day!) we convened a Gathering with 4 water agencies to talk about land stewardship, drought, and partnerships. More info over at: http://openspacecouncil.org/community-events/gatherings/
Assessing the potential of soil organic carbon sequestration in African soilsExternalEvents
This presentation was presented during the 2 Parallel session on Theme 2, Maintaining and/or increasing SOC stocks for climate change mitigation and adaptation and Land Degradation Neutrality, of the Global Symposium on Soil Organic Carbon that took place in Rome 21-23 March 2017. The presentation was made by Ms. Tantely Razafimbelo, from University of Antananarivo and CASA - Madagascar, in FAO Hq, Rome
This presentation was presented during the Plenary 1, Opening Ceremony of the Global Symposium on Soil Organic Carbon that took place in Rome 21-23 March 2017. The presentation was made by Mr. Luca Montanarella from EU Commission’s Joint Research Centre, in FAO Hq, Rome
Accounting for Carbon in Australia’s Coastal WetlandsCIFOR-ICRAF
Presented by Tertius de Kluyver (Senior Policy Analyst at the Department of the Environment of the Government of Australia) at "Steps towards Blue Carbon mitigation under NDCs in Latin America and the Caribbean - Session 2" on 23 July 2020
Event / Evento: II Workshop on Sugarcane Physiology for Agronomic Applications
Speaker / Palestrante: Frederick C. Botha (Sugar Research Australia)
Date / Data: Oct, 29-30th 2013 / 29 e 30 de outubro de 2013
Place / Local: CTBE/CNPEM Campus, Campinas, Brazil
Event Website / Website do evento: www.bioetanol.org.br/sugarcanephysiology
C5.07: Blue Carbon: Current status of Australian estimates and future model p...Blue Planet Symposium
Blue carbon is becoming widely recognised as a critical component of all national carbon accounting schemes. Australia has invested heavily in collating existing estimates of blue carbon stocks and is currently targeting important yet poorly represented habitats around its extensive coastline. Much of this effort is linked with the CSIRO-funded Coastal Carbon Cluster. This 3-year program has developed and validated many approaches to blue carbon estimation and is now able to showcase best-practice methods. The activities of the Cluster have been used as a model for international efforts to develop global estimates, as well as national blue carbon inventories via the International Blue Carbon Scientific Working Group. Finally, static estimates of carbon can only describe the current carbon stock at a specific location; models can extrapolate these relationships into unsampled regions, as well as estimate carbon stock into the future given changes to climate as well as alterations to the geochemistry/hydrodynamics of a specific habitat.
Assessing and reporting resilience of native vegetation using VAST Richard Thackway
The use and management of forested landscapes results in their transformation. Land management practices are used to change key ecological criteria include fire regime, soil hydrology, nutrient status, soil biology, overstorey and understorey vegetation structure and species composition. Two case studies in the Cumberland State Forest, Sydney, NSW are presented showing the transformation of the forest over time.
These slides were presented at the Early Career Researcher's Bioenergy Symposium held by the Centre for Ecology and Hydrology in Lancaster, UK at the end of March 2013. This talk by Andy Robertson presented his work regarding the influence of Miscanthus on soil carbon stocks and CO2 emissions resulting from the plantation's establishment.
Scaling up soil carbon enhancement contributing to mitigate climate changeCIAT
The 4 per 1000 Africa Symposium - Building synergies across Africa to advance on soils for food security and climate, Johannesburg, South Africa 24-26 October 2018
Rolf Sommer, Kristin Piikki, Mats Söderström, Sylvia Nyawira, Mayesse da Silva, Wuletawu Abera and
Job Kihara
Environmental and operational issues of integrated constructed wetlands
Powers URC2015
1. Next Steps
Acknowledgements
• Thank you, Matt Vadeboncoeur and Conor Madison for
their help in the tree core sampling, as well as Lauren
Buzinski for help throughout the study, especially for the
extraction of cellulose.
• Thank you for your generous help, time, and support, Matt
Vadeboncoeur and Heidi Asbjornsen.
• Thank you to the UNH Hamel Center for Undergraduate
Research for giving me this opportunity and funding.
.
Research Site
• Hubbard Brook Experimental Forest in
Woodstock, NH
• In October of 1999, powdered and pelletized
calcium was distributed via helicopter on W1 at
Hubbard Brook and increased the pH in the
organic layer of the soil (Battles et al. 2013).
• It is a secondary growth forest after the 19th and
20th –century logging, and it was exposed to the
1938 hurricane and an intense ice storm in
January 1998 (Battles et al. 2013).
MethodsIntroduction
Growth rate of calcium – fertilized sugar maple and yellow birch at Hubbard Brook
STACIE POWERS*, MATTHEW VADEBONCOEUR AND HEIDI ASBJORNSEN
NATURAL RESOURCES AND THE ENVIRONMENT, ENVIRONMENTAL CONSERVATION AND SUSTAINABILITY
UNIVERSITY OF NEW HAMPSHIRE, DURHAM, NH
*SLS78@WILDCATS.UNH.EDU
Conclusion
• Acid deposition and anthropogenic factors leach
calcium (Ca) from forest soils and mobilize toxic
aluminum (Al) in soils. Ca competes with Al for
uptake, leading to a calcium depletion and damage.
(USDA 2010)
• Calcium is an important macronutrient and has been
shown to be very important for certain tree species.
• Since the late 20th century, improved environmental
regulations, including the Clean Air Act, have
reduced acid deposition.
• I want to know if a watershed that was fertilized with
calcium showed a positive response with ring growth
and water efficiency when compared to a control
watershed (W3).
• It is important to understand the consequences of
acid deposition and to discover ways to restore
forests that have been affected by acid deposition.
Strategies such as forest fertilization may restore the
health of these ecosystems. (Battles et al. 2013)
0%
1%
2%
3%
4%
5%
1980 1985 1990 1995 2000 2005 2010 2015
relativebasalareaincrement
Year
Watershed 1
MEAN
UPPER CI
LOWER CI
Calcium
fertilization
0%
1%
2%
3%
4%
5%
6%
7%
8%
9%
10%
1980 1985 1990 1995 2000 2005 2010
Relativebasalareaincrement
Year
Cores collected in 2011 in Watershed 1
H1S1SM
H1S2SM
H1S4SM
H1S5SM
H1S6SM
H1S7SM
H1S8SM
H1S9SM
0%
1%
2%
3%
4%
5%
1980 1985 1990 1995 2000 2005 2010 2015
Relativebasalareaincrement
Year
Watershed 3 (reference)
MEAN
UPPER CI
LOWER CI
Ice storm of
1998
• Homogenize cellulose using the Branson
sonicator.
• Weigh cellulose samples for isotopic data on
evapotranspiration
0
0.2
0.4
0.6
0.8
1
1.2
1.4
1.6
1.8
2
1980 1985 1990 1995 2000 2005 2010
RADIALINCREMENT(MM)
YEAR
YELLOW BIRCH AVERAGE GROWTH
H3 Average H1 Average
• Calcium fertilization resulted in
growth in Sugar Maple and the
results of Yellow Birch is not
conclusive, however, it does
look like the fertilization had
much effect.
• This study adds more detail to
the past study by Battles et al.
2013.
• The t-test p value on the ratio of
both means from W1 and W3
(sugar maple and yellow birch)
is <.001.
• Collected sugar maple tree cores from Hubbard Brook in W3 and
W1 during the summer of 2014 and used pre-collected yellow
birch cores from 2011.
• Sanded the tree cores to make rings more visible and mounted
the cores onto wooden platforms.
• Counted and marked tree rings and then measured tree ring
width using Measure J2X and then cross-dated using COFECHA
• Found Basal Area Increments (BAI) for percent growth of each
year.
Calcium-
fertilized
watershed
Reference
watershed
Ice storm of
1998
Calcium
fertilizationIce
storm
of 1998
Calcium
fertilization
Ice
storm of
1998
Yellow Birch (In Progress)Sugar Maple
Figure. 1 The mean and confidence intervals of
all cores measured from watershed 3.
Figure. 2 The mean and confidence intervals of all cores
measured from watershed 1.
Figure. 3 An example of measured cores from
watershed 1.
0
0.5
1
1.5
2
2.5
3
3.5
4
1980 1985 1990 1995 2000 2005 2010
RADIALINCREMENT(MILLIMETERS)
YEAR
WATERSHED 3
H3YB1S4
H3YB2S4
H3YB2S5
H3YB2S7
H3YB2S8
H3YB3S2
H3YB3S4
H3YB3S7
0
0.5
1
1.5
2
2.5
3
3.5
4
4.5
1980 1985 1990 1995 2000 2005 2010
RADIALINCREMENTS(MILLIMETERS)
YEAR
WATERSHED 1
H1YB1S3
H1YB1S7
H1YB1S9
H1YB2S6
H1YB2S7
H1YB3S6
H1YB3S7
H1YB3S8
Figure. 4 Some measured tree cores from watershed 3
from 1980 to 2011.
Figure. 5 Some measured tree cores from watershed 1
from 1980 to 2011.
Figure. 6 The mean of all measured cores in watershed 1
and the mean of all measured cores in watershed 3 from
1980 to 2011.
2000
****************************************
*C* Number of dated series 28 *C*
*O* Master series 1914 2013 100 yrs *O*
*F* Total rings in all series 2254 *F*
*E* Total dated rings checked 2251 *E*
*C* Series intercorrelation .369 *C*
*H* Average mean sensitivity .267 *H*
*A* Segments, possible problems 91 *A*
*** Mean length of series 80.5 ***
****************************************
Seq Series Time_span 1905 1920 1935 1950 1965 1980 1995
1934 1949 1964 1979 1994 2009 2024
--- -------- --------- ---- ---- ---- ---- ---- ---- ----
1 H110SM1 1934 2013 -.16B-.18B-.18B-.08B .38A .48
2 13SM1 1947 2013 -.01B-.11B .11B .53 .52
3 H113SM2 1942 2013 .55 .58 .43 .55 .67
4 H1S14SM2 1919 2013 .03B-.03B .16A .20B .19B .37A .35A
5 H116SMT6 1924 2012 .00B-.07B-.07B .16B .63 .61
6 H117SM2 1949 2013 -.04B-.15B-.04B .43 .59
7 H118SM1 1940 2013 .45 .42A .63 .76 .74
8 H118SM2 1943 2013 .46 .32A .60 .73 .72
Av segment correlation .01 .19 .35 .36 .32 .48 .51
Sugar Maple is an important species for
its instrumental and monetary value and
acid deposition and calcium depletion is
one of the many reasons why it may not
be present in New England in the future.
The view while measuring tree rings using the
Measure J2X program
Results
A vial containing cellulose
after an extraction
A sugar maple tree core under a
light showing the tree rings.
Photos courtesy of Hubbard Brook Experimental Station website
Table 1. Correlations of individual tree cores
against a master chronology.
Table 2. COFECHA summary table with
calculated outputs and correlations.
The stereomicroscope and
Velmex platform used for
measuring.
Ice storm of
1998
Calcium
fertilization
Ice storm of
1998
Battles, John J., et al. “Restoring Soil Calcium Reverses Forest Decline.” Environmental Science and Technology
Letters vol. 1 (2014):15-19. Web. Sept 30 2014.
Driscoll, Charles, et al. “Acidic Deposition in the Northeastern United States: Sources and Inputs, Ecosystem Effects,
and Management Strategies.” Bioscience 51:3 (March, 2001): 180-198. Web. 30 Sept 2014.
Schaberg, Paul. "Acid Rain and Calcium Depletion." Forest Disturbance Processes. USDA Forest Service, 27 Jan.
2010. Web
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