sediment & physical parameters levi dawes richard yang paul schiller paul burke
TRANSCRIPT
Turnbow Pond
Sediment & Physical Parameters Levi Dawes
Richard Yang Paul Schiller
Paul Burke
OutlineQuick backgroundWhat we did (Methods and Results)
Conclusions and Suggestions
BackgroundNorth of Potlatch and owned by Larry & Lael Turnbow
Dug out 3 years ago, added depth and size
High turbidityGround water inflowBass and rainbow trout present
Pond Sample Locations
Basic MaterialsMaterial List Numbers NeededKB core sampler 1KB core tube 9KB core plug 18Messenger 2Van dorm sampler 1Sampling bottle 18Secchi disk 1Turbidity tube/ turbidity probe
1
MethodsRiparian Vegetation
Turbidity
Secchi Depth
KB Core
KB Core Results1.500 2.000 2.500 3.000 3.5000
1
2
3
4
5
6
A1A2B2C1
Organic Matter (%)
Dep
th (
cm
)
KB Core Results1.0000 1.5000 2.0000 2.5000 3.0000
0
1
2
3
4
5
6
A1A2B2C1
Bulk Density (g/mL)
Dep
th (
cm
)
KB Core Results20.00030.00040.00050.00060.00070.000
0
1
2
3
4
5
6
A1A2B2C1
Water Content (%)
Dep
th (
cm
)
Secchi Depth
Location Duplicate Number Secchi Depth (m) Photic Zone Depth (m)A 1 0.34 0.68
2 0.36 0.723 0.31 0.62
B 1 0.33 0.662 0.33 0.663 0.32 0.64
C 1 0.31 0.622 0.32 0.643 0.31 0.62
Average 0.33 0.65
0 10 20 30 40 50 60 70 80 90 1000
0.5
1
1.5
2
2.5
ABC
Turbidity (NTU)
Dep
th (
m)
Turbidity
Riparian Vegetation
http://www.clemson.edu/extension/hgic/water/resources_stormwater/shoreline_plants_in_south_carolina_waterfronts.html
Pond BottomLow organic matter suggests large amounts of clay
Pond will not leak, however it is not good for aquatic vegetation
Adding more aquatic vegetation will eventually increase organic matter
Suggestions (long term)
Plant more riparian and bank vegetation, especially shrubs
Increased root length and size will stabilize soil and lower turbidity
Increased plant diversity will lead to increased aquatic animal diversity
Suggestions (short term)
Apply calcium sulfate (CaSO4) (gypsum)
CaSO4 binds to clay particles
May alter water chemistry
Negative charges repeleach other
Cations bind to clayand make it neutral
Suggestions (short term)
Add alfalfa to shallow areas 2 square bales/acre of surface area in spring and summer
Decomposition => positively charged molecules
Adds food for microbes and bugs
Decomposition consumes O2
SummaryTurnbow Pond has high turbidity
Our results suggest high clay input
Treat with riparian buffer zone and hay
Questions?
ReferencesClearing ponds that have turbid (muddy) water. Missouri
Department of Conservation. Online source. Accessed on 9 December 2014. Riparian Buffers. Stream Notes 1. Online source. Accessed on 9
December 2014.Schlosser, I.J., Karr, J.R. 1981. Water quality in agricultural
watersheds: impact of riparian vegetation during base flow. Water Resources Bulletin 17:233-240.Yi, Y., Lin, C.K. wei, Diana, J.S. 2003. Techniques to mitigate clay turbidity problems in fertilized earthen fish ponds. Aquacultural Engineering 27:39-51.