Reconciling Podzolic and Redoximorphic Responses to Seasonal Saturation Willie Harris, Rex Ellis,...
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Transcript of Reconciling Podzolic and Redoximorphic Responses to Seasonal Saturation Willie Harris, Rex Ellis,...
![Page 1: Reconciling Podzolic and Redoximorphic Responses to Seasonal Saturation Willie Harris, Rex Ellis, Wade Hurt, Chumki Banik, Scarlett Balboa, Travis Richardson,](https://reader035.fdocuments.in/reader035/viewer/2022062401/5a4d1b617f8b9ab0599ad6cd/html5/thumbnails/1.jpg)
Reconciling Podzolic and Redoximorphic Responses to
Seasonal SaturationWillie Harris, Rex Ellis, Wade Hurt, Chumki Banik, Scarlett Balboa,
Travis Richardson, Chad Rischar, Ashley Phillips
Acknowledgments:
We thank Mr. Kafui Awuma and Ms. Kimberly Johnson for assistance with various field and laboratory aspects of this project. We also thank the following students for their help in the field with well installation, surveying, photography, etc.: Jeff Brantley, Luke Gommermann, Will Mahler, and Alexandra Rozin.
Funding from USDA-NRCS and McIntire-Stennis
![Page 2: Reconciling Podzolic and Redoximorphic Responses to Seasonal Saturation Willie Harris, Rex Ellis, Wade Hurt, Chumki Banik, Scarlett Balboa, Travis Richardson,](https://reader035.fdocuments.in/reader035/viewer/2022062401/5a4d1b617f8b9ab0599ad6cd/html5/thumbnails/2.jpg)
Podzolization• Pedogenic translocation & joint accumulation of C & metals• Produces Bh horizon in FL • Well expressed Bh = Spodic horizon & Spodosol soil order
– Eluviation – • loss
– Illuviation –• gain
A
E
Bh
Florida Spodosol
“Podzolic” relates to …
![Page 3: Reconciling Podzolic and Redoximorphic Responses to Seasonal Saturation Willie Harris, Rex Ellis, Wade Hurt, Chumki Banik, Scarlett Balboa, Travis Richardson,](https://reader035.fdocuments.in/reader035/viewer/2022062401/5a4d1b617f8b9ab0599ad6cd/html5/thumbnails/3.jpg)
Spodosol distribution worldwide
Commonly well drained
Mainly restricted toimperfectly-drained sites
What is the role of the water table (WT) in fostering Spodosol formation in Florida?
Randy Schaetzl
![Page 4: Reconciling Podzolic and Redoximorphic Responses to Seasonal Saturation Willie Harris, Rex Ellis, Wade Hurt, Chumki Banik, Scarlett Balboa, Travis Richardson,](https://reader035.fdocuments.in/reader035/viewer/2022062401/5a4d1b617f8b9ab0599ad6cd/html5/thumbnails/4.jpg)
“Seasonal High Water Saturation” (SHS)
A
E
Bh
Florida Spodosol
SHS commonly about here
![Page 5: Reconciling Podzolic and Redoximorphic Responses to Seasonal Saturation Willie Harris, Rex Ellis, Wade Hurt, Chumki Banik, Scarlett Balboa, Travis Richardson,](https://reader035.fdocuments.in/reader035/viewer/2022062401/5a4d1b617f8b9ab0599ad6cd/html5/thumbnails/5.jpg)
“Redoximorphic” relates to …
Images from page 18 of "Field Indicators of Hydric Soils"ftp://ftp-fc.sc.egov.usda.gov/NSSC/Hydric_Soils/FieldIndicators_v7.pdf
DepletionsConcentrations
Redoximorphic features: • Features associated with wetness – SHS indicators• Result from alternating periods of reduction & oxidation of Fe
& Mn in soils
![Page 6: Reconciling Podzolic and Redoximorphic Responses to Seasonal Saturation Willie Harris, Rex Ellis, Wade Hurt, Chumki Banik, Scarlett Balboa, Travis Richardson,](https://reader035.fdocuments.in/reader035/viewer/2022062401/5a4d1b617f8b9ab0599ad6cd/html5/thumbnails/6.jpg)
Main Objectives
• Address uncertainties of redoximorphic–podzolic morphological effects along hydrologic gradients
• Test idea that Fe depletion along hydrologic gradients is a factor explaining association of Florida Spodosols with fluctuating WT
![Page 7: Reconciling Podzolic and Redoximorphic Responses to Seasonal Saturation Willie Harris, Rex Ellis, Wade Hurt, Chumki Banik, Scarlett Balboa, Travis Richardson,](https://reader035.fdocuments.in/reader035/viewer/2022062401/5a4d1b617f8b9ab0599ad6cd/html5/thumbnails/7.jpg)
Approach
• Evaluate hydropedological trends along sandhill-flatwood-wetland transitions
• Install wells along 4 transects (23 total)
• Have local experts make SHS calls
• Monitor WT over a 2-year period
• Described and sample soils at each well site
• Determine Al, Fe, and C distribution by horizon
![Page 8: Reconciling Podzolic and Redoximorphic Responses to Seasonal Saturation Willie Harris, Rex Ellis, Wade Hurt, Chumki Banik, Scarlett Balboa, Travis Richardson,](https://reader035.fdocuments.in/reader035/viewer/2022062401/5a4d1b617f8b9ab0599ad6cd/html5/thumbnails/8.jpg)
Transect Site Locations – Alachua Co.
20 km12.4 miles
Austin Carey Memorial Forest (ACMF) – 2 sites
Longleaf Flatwoods Reserve (LFR) – 2 sites
![Page 9: Reconciling Podzolic and Redoximorphic Responses to Seasonal Saturation Willie Harris, Rex Ellis, Wade Hurt, Chumki Banik, Scarlett Balboa, Travis Richardson,](https://reader035.fdocuments.in/reader035/viewer/2022062401/5a4d1b617f8b9ab0599ad6cd/html5/thumbnails/9.jpg)
Transect Site Plant Community Transition
Marginal “sandhills” Flatwoods bordering wetland
Example:“sandhills” to flatwoods @ site 3
![Page 10: Reconciling Podzolic and Redoximorphic Responses to Seasonal Saturation Willie Harris, Rex Ellis, Wade Hurt, Chumki Banik, Scarlett Balboa, Travis Richardson,](https://reader035.fdocuments.in/reader035/viewer/2022062401/5a4d1b617f8b9ab0599ad6cd/html5/thumbnails/10.jpg)
Bunk! That’s not redox! Oh, yeah!
Come over here and say
that!
What are we “reconciling”? …
![Page 11: Reconciling Podzolic and Redoximorphic Responses to Seasonal Saturation Willie Harris, Rex Ellis, Wade Hurt, Chumki Banik, Scarlett Balboa, Travis Richardson,](https://reader035.fdocuments.in/reader035/viewer/2022062401/5a4d1b617f8b9ab0599ad6cd/html5/thumbnails/11.jpg)
Jeff Locuta’s image – Pedology class 2012
What are we “reconciling”? … (cont.)• Overlapping morphological effects of both processes along
transition from Spodosols to better-drained soils
• Evidence of process linkage through redox influence on Fe
![Page 12: Reconciling Podzolic and Redoximorphic Responses to Seasonal Saturation Willie Harris, Rex Ellis, Wade Hurt, Chumki Banik, Scarlett Balboa, Travis Richardson,](https://reader035.fdocuments.in/reader035/viewer/2022062401/5a4d1b617f8b9ab0599ad6cd/html5/thumbnails/12.jpg)
“Sandhills” “Flatwoods”AA
What are we “reconciling”? … (cont.)• Schematic cross section of transition
• Soils shown were along transition
• Note trend in water table and degree of podzolization
• Note “cross-over” between SHS and Bh
• How are SHS indicators (redox features) affected by Bh?
![Page 13: Reconciling Podzolic and Redoximorphic Responses to Seasonal Saturation Willie Harris, Rex Ellis, Wade Hurt, Chumki Banik, Scarlett Balboa, Travis Richardson,](https://reader035.fdocuments.in/reader035/viewer/2022062401/5a4d1b617f8b9ab0599ad6cd/html5/thumbnails/13.jpg)
Findings
A. WT & SHS indicator correspondence
![Page 14: Reconciling Podzolic and Redoximorphic Responses to Seasonal Saturation Willie Harris, Rex Ellis, Wade Hurt, Chumki Banik, Scarlett Balboa, Travis Richardson,](https://reader035.fdocuments.in/reader035/viewer/2022062401/5a4d1b617f8b9ab0599ad6cd/html5/thumbnails/14.jpg)
y = 0.5754x + 20.255R² = 0.7644
0
20
40
60
80
100
120
0 20 40 60 80 100 120 140 160
Mea
n SH
S (c
m)
Mean Water Table Depth, (cm) 8/15 to 9/7/2012
SHS calls vs. WT• Late summer• Water in all wells• Water table fluctuating
![Page 15: Reconciling Podzolic and Redoximorphic Responses to Seasonal Saturation Willie Harris, Rex Ellis, Wade Hurt, Chumki Banik, Scarlett Balboa, Travis Richardson,](https://reader035.fdocuments.in/reader035/viewer/2022062401/5a4d1b617f8b9ab0599ad6cd/html5/thumbnails/15.jpg)
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31
32
0 10 20 30 40 50 60 70 80 90 100 110 120 130
5/30/12 Observation Depth
Ground surface
Fluctuating water table
Average SHS call
Elev
ation
(m
NAD
88)
Distance along transect (m)
1-1 1-2
1-31-4
1-5
1-6Road?
Distance along transect (m)
1-1 1-2
1-31-4
1-5
1-6
Concentrations Depletions(aka “stripping”)
Transect 1 - LFR
![Page 16: Reconciling Podzolic and Redoximorphic Responses to Seasonal Saturation Willie Harris, Rex Ellis, Wade Hurt, Chumki Banik, Scarlett Balboa, Travis Richardson,](https://reader035.fdocuments.in/reader035/viewer/2022062401/5a4d1b617f8b9ab0599ad6cd/html5/thumbnails/16.jpg)
27
28
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30
31
32
0 10 20 30 40 50 60 70 80 90 100 110 120 130
6/1/12 Observation Depth
Ground surface
Fluctuating water table
Average SHS call
Elev
ation
(m
NAD
88)
Distance along transect (m)
1-1 1-2
1-31-4
1-5
1-6Road?
Distance along transect (m)
1-1 1-2
1-31-4
1-5
1-6
![Page 17: Reconciling Podzolic and Redoximorphic Responses to Seasonal Saturation Willie Harris, Rex Ellis, Wade Hurt, Chumki Banik, Scarlett Balboa, Travis Richardson,](https://reader035.fdocuments.in/reader035/viewer/2022062401/5a4d1b617f8b9ab0599ad6cd/html5/thumbnails/17.jpg)
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31
32
0 10 20 30 40 50 60 70 80 90 100 110 120 130
6/20/12 Observation Depth
Ground surface
Fluctuating water table
Average SHS call
Elev
ation
(m
NAD
88)
Distance along transect (m)
1-1 1-2
1-31-4
1-5
1-6Road?
Distance along transect (m)
1-1 1-2
1-31-4
1-5
1-6
![Page 18: Reconciling Podzolic and Redoximorphic Responses to Seasonal Saturation Willie Harris, Rex Ellis, Wade Hurt, Chumki Banik, Scarlett Balboa, Travis Richardson,](https://reader035.fdocuments.in/reader035/viewer/2022062401/5a4d1b617f8b9ab0599ad6cd/html5/thumbnails/18.jpg)
27
28
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30
31
32
0 10 20 30 40 50 60 70 80 90 100 110 120 130
7/4/12 Observation Depth
Ground surface
Series7
Average SHS call
Elev
ation
(m
NAD
88)
Distance along transect (m)
1-1 1-2
1-31-4
1-5
1-6Road?
Distance along transect (m)
1-1 1-2
1-31-4
1-5
1-6
![Page 19: Reconciling Podzolic and Redoximorphic Responses to Seasonal Saturation Willie Harris, Rex Ellis, Wade Hurt, Chumki Banik, Scarlett Balboa, Travis Richardson,](https://reader035.fdocuments.in/reader035/viewer/2022062401/5a4d1b617f8b9ab0599ad6cd/html5/thumbnails/19.jpg)
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28
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31
32
0 10 20 30 40 50 60 70 80 90 100 110 120 130
7/12/12 Observation Depth
Ground surface
Series7
Average SHS call
Elev
ation
(m
NAD
88)
Distance along transect (m)
1-1 1-2
1-31-4
1-5
1-6Road?
Distance along transect (m)
1-1 1-2
1-31-4
1-5
1-6
![Page 20: Reconciling Podzolic and Redoximorphic Responses to Seasonal Saturation Willie Harris, Rex Ellis, Wade Hurt, Chumki Banik, Scarlett Balboa, Travis Richardson,](https://reader035.fdocuments.in/reader035/viewer/2022062401/5a4d1b617f8b9ab0599ad6cd/html5/thumbnails/20.jpg)
27
28
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30
31
32
0 10 20 30 40 50 60 70 80 90 100 110 120 130
7/18/12 Observation Depth
Ground surface
Series7
Average SHS call
Elev
ation
(m
NAD
88)
Distance along transect (m)
1-1 1-2
1-31-4
1-5
1-6Road?
Distance along transect (m)
1-1 1-2
1-31-4
1-5
1-6
![Page 21: Reconciling Podzolic and Redoximorphic Responses to Seasonal Saturation Willie Harris, Rex Ellis, Wade Hurt, Chumki Banik, Scarlett Balboa, Travis Richardson,](https://reader035.fdocuments.in/reader035/viewer/2022062401/5a4d1b617f8b9ab0599ad6cd/html5/thumbnails/21.jpg)
27
28
29
30
31
32
0 10 20 30 40 50 60 70 80 90 100 110 120 130
7/31/12 Observation Depth
Ground surface
Series7
Average SHS call
Elev
ation
(m
NAD
88)
Distance along transect (m)
1-1 1-2
1-31-4
1-5
1-6Road?
Distance along transect (m)
1-1 1-2
1-31-4
1-5
1-6
![Page 22: Reconciling Podzolic and Redoximorphic Responses to Seasonal Saturation Willie Harris, Rex Ellis, Wade Hurt, Chumki Banik, Scarlett Balboa, Travis Richardson,](https://reader035.fdocuments.in/reader035/viewer/2022062401/5a4d1b617f8b9ab0599ad6cd/html5/thumbnails/22.jpg)
27
28
29
30
31
32
0 10 20 30 40 50 60 70 80 90 100 110 120 130
8/8/12 Observation Depth
Ground surface
Series7
Average SHS call
Elev
ation
(m
NAD
88)
Distance along transect (m)
1-1 1-2
1-31-4
1-5
1-6Road?
Distance along transect (m)
1-1 1-2
1-31-4
1-5
1-6
![Page 23: Reconciling Podzolic and Redoximorphic Responses to Seasonal Saturation Willie Harris, Rex Ellis, Wade Hurt, Chumki Banik, Scarlett Balboa, Travis Richardson,](https://reader035.fdocuments.in/reader035/viewer/2022062401/5a4d1b617f8b9ab0599ad6cd/html5/thumbnails/23.jpg)
27
28
29
30
31
32
0 10 20 30 40 50 60 70 80 90 100 110 120 130
8/15/12 Observation Depth
Ground surface
Series7
Average SHS call
Elev
ation
(m
NAD
88)
Distance along transect (m)
1-1 1-2
1-31-4
1-5
1-6Road?
Distance along transect (m)
1-1 1-2
1-31-4
1-5
1-6
![Page 24: Reconciling Podzolic and Redoximorphic Responses to Seasonal Saturation Willie Harris, Rex Ellis, Wade Hurt, Chumki Banik, Scarlett Balboa, Travis Richardson,](https://reader035.fdocuments.in/reader035/viewer/2022062401/5a4d1b617f8b9ab0599ad6cd/html5/thumbnails/24.jpg)
27
28
29
30
31
32
0 10 20 30 40 50 60 70 80 90 100 110 120 130
8/22/12 Observation Depth
Ground surface
Fluctuating water table
Average SHS call
Elev
ation
(m
NAD
88)
Distance along transect (m)
1-1 1-2
1-31-4
1-5
1-6Road?
Distance along transect (m)
1-1 1-2
1-31-4
1-5
1-6
![Page 25: Reconciling Podzolic and Redoximorphic Responses to Seasonal Saturation Willie Harris, Rex Ellis, Wade Hurt, Chumki Banik, Scarlett Balboa, Travis Richardson,](https://reader035.fdocuments.in/reader035/viewer/2022062401/5a4d1b617f8b9ab0599ad6cd/html5/thumbnails/25.jpg)
27
28
29
30
31
32
0 10 20 30 40 50 60 70 80 90 100 110 120 130
8/29/12 Observation Depth
Ground surface
Series7
Average SHS call
Elev
ation
(m
NAD
88)
Distance along transect (m)
1-1 1-2
1-31-4
1-5
1-6Road?
Distance along transect (m)
1-1 1-2
1-31-4
1-5
1-6
![Page 26: Reconciling Podzolic and Redoximorphic Responses to Seasonal Saturation Willie Harris, Rex Ellis, Wade Hurt, Chumki Banik, Scarlett Balboa, Travis Richardson,](https://reader035.fdocuments.in/reader035/viewer/2022062401/5a4d1b617f8b9ab0599ad6cd/html5/thumbnails/26.jpg)
27
28
29
30
31
32
0 10 20 30 40 50 60 70 80 90 100 110 120 130
8/31/12 Observation Depth
Ground surface
Series7
Average SHS call
Elev
ation
(m
NAD
88)
Distance along transect (m)
1-1 1-2
1-31-4
1-5
1-6Road?
Distance along transect (m)
1-1 1-2
1-31-4
1-5
1-6
![Page 27: Reconciling Podzolic and Redoximorphic Responses to Seasonal Saturation Willie Harris, Rex Ellis, Wade Hurt, Chumki Banik, Scarlett Balboa, Travis Richardson,](https://reader035.fdocuments.in/reader035/viewer/2022062401/5a4d1b617f8b9ab0599ad6cd/html5/thumbnails/27.jpg)
27
28
29
30
31
32
0 10 20 30 40 50 60 70 80 90 100 110 120 130
9/7/12 Observation Depth
Ground surface
Series7
Average SHS call
Elev
ation
(m
NAD
88)
Distance along transect (m)
1-1 1-2
1-31-4
1-5
1-6Road?
Distance along transect (m)
1-1 1-2
1-31-4
1-5
1-6
![Page 28: Reconciling Podzolic and Redoximorphic Responses to Seasonal Saturation Willie Harris, Rex Ellis, Wade Hurt, Chumki Banik, Scarlett Balboa, Travis Richardson,](https://reader035.fdocuments.in/reader035/viewer/2022062401/5a4d1b617f8b9ab0599ad6cd/html5/thumbnails/28.jpg)
27
28
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30
31
32
0 10 20 30 40 50 60 70 80 90 100 110 120 130
9/14/12 Observation Depth
Ground surface
Series7
Average SHS call
Elev
ation
(m
NAD
88)
Distance along transect (m)
1-1 1-2
1-31-4
1-5
1-6Road?
Distance along transect (m)
1-1 1-2
1-31-4
1-5
1-6
![Page 29: Reconciling Podzolic and Redoximorphic Responses to Seasonal Saturation Willie Harris, Rex Ellis, Wade Hurt, Chumki Banik, Scarlett Balboa, Travis Richardson,](https://reader035.fdocuments.in/reader035/viewer/2022062401/5a4d1b617f8b9ab0599ad6cd/html5/thumbnails/29.jpg)
27
28
29
30
31
32
0 10 20 30 40 50 60 70 80 90 100 110 120 130
9/21/12 Observation Depth
Ground surface
Series7
Average SHS call
Elev
ation
(m
NAD
88)
Distance along transect (m)
1-1 1-2
1-31-4
1-5
1-6Road?
Distance along transect (m)
1-1 1-2
1-31-4
1-5
1-6
![Page 30: Reconciling Podzolic and Redoximorphic Responses to Seasonal Saturation Willie Harris, Rex Ellis, Wade Hurt, Chumki Banik, Scarlett Balboa, Travis Richardson,](https://reader035.fdocuments.in/reader035/viewer/2022062401/5a4d1b617f8b9ab0599ad6cd/html5/thumbnails/30.jpg)
27
28
29
30
31
32
0 10 20 30 40 50 60 70 80 90 100 110 120 130
9/30/12 Observation Depth
Ground surface
Series7
Average SHS call
Elev
ation
(m
NAD
88)
Distance along transect (m)
1-1 1-2
1-31-4
1-5
1-6Road?
Distance along transect (m)
1-1 1-2
1-31-4
1-5
1-6
![Page 31: Reconciling Podzolic and Redoximorphic Responses to Seasonal Saturation Willie Harris, Rex Ellis, Wade Hurt, Chumki Banik, Scarlett Balboa, Travis Richardson,](https://reader035.fdocuments.in/reader035/viewer/2022062401/5a4d1b617f8b9ab0599ad6cd/html5/thumbnails/31.jpg)
27
28
29
30
31
32
0 10 20 30 40 50 60 70 80 90 100 110 120 130
10/12/12 Observation Depth
Ground surface
Series7
Average SHS call
Elev
ation
(m
NAD
88)
Distance along transect (m)
1-1 1-2
1-31-4
1-5
1-6Road?
Distance along transect (m)
1-1 1-2
1-31-4
1-5
1-6
![Page 32: Reconciling Podzolic and Redoximorphic Responses to Seasonal Saturation Willie Harris, Rex Ellis, Wade Hurt, Chumki Banik, Scarlett Balboa, Travis Richardson,](https://reader035.fdocuments.in/reader035/viewer/2022062401/5a4d1b617f8b9ab0599ad6cd/html5/thumbnails/32.jpg)
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28
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30
31
32
0 10 20 30 40 50 60 70 80 90 100 110 120 130
10/26/12 Observation Depth
Ground surface
Fluctuating water table
Average SHS call
Elev
ation
(m
NAD
88)
Distance along transect (m)
1-1 1-2
1-31-4
1-5
1-6Road?
Distance along transect (m)
1-1 1-2
1-31-4
1-5
1-6
![Page 33: Reconciling Podzolic and Redoximorphic Responses to Seasonal Saturation Willie Harris, Rex Ellis, Wade Hurt, Chumki Banik, Scarlett Balboa, Travis Richardson,](https://reader035.fdocuments.in/reader035/viewer/2022062401/5a4d1b617f8b9ab0599ad6cd/html5/thumbnails/33.jpg)
Conclusions –WT & SHS calls
• Strong relation between SHS & mean WT depth during periods of fluctuation
• Highest WT shallower than SHS calls, especially on wettest end
• Predominant indicator was depletion
• Depletions were indicators for SHS calls in Bh
![Page 34: Reconciling Podzolic and Redoximorphic Responses to Seasonal Saturation Willie Harris, Rex Ellis, Wade Hurt, Chumki Banik, Scarlett Balboa, Travis Richardson,](https://reader035.fdocuments.in/reader035/viewer/2022062401/5a4d1b617f8b9ab0599ad6cd/html5/thumbnails/34.jpg)
Thanks!Questions?