restoration projects in the colorado river deltaconservation priority areas in the delta ecological...
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Restoration Projects in the Colorado River Delta
Francisco Zamora Arroyo
IBWC - Colorado River Citizens Forum June 13, 2012
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Conservation Priority Areas in the Delta
Ecological goals and water needs different for each area: - CR Riparian - Hardy River - Estuary
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Riparian - Demonstration site
Corredor RibereñoSitio propuesto de Restauración y Área Recreativa
Corredor RibereñoSitio propuesto de Restauración y Área Recreativa
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Sitios Dem ostrativos
Poblados
D Sitios
Ferrocarril Carreteras
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Laguna Grande Objetivo: • Incrementar el area de
bosque de alamo y sauces, mejorar la diversidad estructural, y crear areas para la comunidad.
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Laguna Grande • Over 7,000 native
trees have been planted in 100 acres
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Water for restoration
•J·. \ · . ...,~~,,-:··- :•. ,.--
. . .
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Restauración de Hábitat Ripario en las inmediaciones del Río Colorado, México.
18
COLORADO RIVER RIPARIAN RESTORATION PROJECT, MEXICO
~{D CILASITE (40ACRES)
~ c::J BORSITE (S ACRES PLANTED WITH SEED)
MIXED RIPARIAN
MESQUITE BOSQUE
MESIC RIPARIAN
PARK
r·-, FEDERAL CONSESSION I I AREA FOR RESTORATION L.. • ....J (270ACRES)
""" STREAM
···~ .... INTERMITTENT STREAM
,."'Il I I NOT TO SCALE
NORTH
MIXED RIPARIAN
MIXED RIPARIAN•
A PROJECT BY:
pro natura
AUGUST, 2011
PROJECT DESIGNED IN COLLABORATION WITH:
GSANALYSIS.COM
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Fotos aéreas Febrero 17, 2011 Abril 13, 2011
Septiembre 2, 2011
28-Nov-11 19 Restauración de Hábitat Ripario
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Pt. 1-3 4/21/2011 Pt. 1-3 7/11/2011
Pt. 1-3 8/16/2011 Pt. 1-3 9/20/2011
Pt. 1-3
Vegetation Comparison Point 1-3
28-Nov-11 22 Restauración de Hábitat Ripario
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Pt. 1-20 4/21/2011 Pt. 1-20 7/11/2011
Pt. 1-20 8/16/2011 Pt. 1-20 9/20/2011
Vegetation Comparison Point 1-20
28-Nov-11 23 Restauración de Hábitat Ripario
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Pt. 1-3 4/21/2011 Pt. 1-3 7/11/2011
Pt. 1-3 8/16/2011 Pt. 1-3 9/20/2011
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Objectives: •Vegetation: determine establishment rates, growth, and cover
•Vegetation cover – transects •Height and conditions •Habitat quality •Repeat photography from the ground and aerial
Hydrology: Determine surface and groundwater conditions
•Depth to groundwater •surface water/flows •Water quality
Birds: Determine impact on target species - species diversity and abundance, - Are extirpated species nesting again? - habitat characteristics for bird community - restoration at different sites/bird community
Monitoring
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Overall water transactions goals for riparian restoration: - Secure a base flow of at least 50,000 af per year - Pulse flow of: 250,000 af every 4-5 years Specific goals: establish native riparian vegetation, increase land cover to at least 10-15%, diversify vertical structure, and connectivity among patches.
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Depth to groundwater
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Tree height
Date Conditions Time Temp (oC)
SpC (mS/cm) TDS (g/L) Salinity
(PSS) pH ORPDO%
(fijado al 110%)
ODO (mg/L)
25-May-11 sunny 1:20 25.93 3.159 2.051 1.65 8.00 -54.10 62.90% 5.028-Mar-12 sunny 14:30 17.46 3.589 2.332 1.9 2.70 158.50 89.80% 8.48
Date Conditions Time Temp (oC)
SpC (mS/cm) TDS (g/L) Salinity
(PSS) pH ORPDO%
(fijado al 110%)
ODO (mg/L)
25-May-11 sunny 02:15 28.87 1.835 1.192 0.92 8.30 -46.70 132.90% 10.218-Mar-12 sunny 16:30 18.75 1.545 1.005 0.78 3.09 171.80 123.90% 11.52
CANAL
BARRANCO
Water Quality
0
0.5
1
1.5
2
2.5
3
3.5
4
4.5
Dep
th (m
eter
s)
Date
Depth-to-GroundwaterMay 2011 - February 2012
PZ 1
PZ 2
PZ 3
PZ 4
PZ 5
PZ 6
PZ 7
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Hardy River Objectives: •Make it navigable
•Enhance riparian habitat - mesquite bosque, CW-W forest
•Increase marsh wetland habitat
•Enhance fish habitat