124
00 sq m/hect x 1.6m/year = 16,000,000 liters/hect/
| Date post: | 31-Aug-2014 |
| Category: |
Self Improvement |
| Upload: | aloha-house |
| View: | 845 times |
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10,000 sq m/hect x 1.6m/year = 16,000,000 liters/hect/year
5 year Master development plan - 3 hectares - tropical - 1,600mm annual rainfall30% pasture, 30% forest,15% water, 25% fruits/vegetables
swales
swalesswales
swales
swales
Pond 00
Pond 0
Pond 1
Pond 2
Pond 3
Pond 4Pond 5
Pond 00 - ridge damPond 0 - contour damPond 1 - contour damPond 2 - barrier/check damPond 3 - keyline damPond 4 - saddle damPond 5 - ridge dam
12,000L rainwater storage
Wat
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Orphanage
Dorms
5 year Master development plan - 3 hectares - tropical - 1,600mm annual rainfall30% pasture, 30% forest,15% water, 25% fruits/vegetables
swales
swalesswales
swales
swales
Pond 00
Pond 0
Pond 1
Pond 2
Pond 3
Pond 4Pond 5
Pond 00 - ridge damPond 0 - contour damPond 1 - contour damPond 2 - barrier/check damPond 3 - keyline damPond 4 - saddle damPond 5 - ridge dam
12,000L rainwater storage
Wat
er h
arve
sting
har
dwar
e -
hous
ehol
d &
road
Wat
er h
arve
stin
g ha
rdw
are
- roa
d
Orphanage
DormsZone 2Zone 2
Zone 3Zone 3Zone 4Zone 4 Zone 5Zone 5
Approximate average hill profile
52 m
30 m
Key line
200 meters
20132012
2011
Aloha House
2001 2005
Dam 1
Dam 1
Swale 1
Swale 1
Swale 2
Swale 3
Swale 3
The Swale
Water harvesting technique on contour with the land
The best way to maximize rain water is by slowing it down so that it can soak into the ground. Give it the longest path on the slowest course.
Swale 3
Swale 3
The Swale
Water harvesting technique on contour with the land
Soft mound of soil planted with cover crop
downhill of ditch
Water harvesting ditch on contour with the land
The Swale
Water percolates through to the lower soil 2 ways
The Swale
Water percolates through to the lower soil 2 ways
Swale
Ditch
Swale 3
The Swale
Water percolates through to the lower soil 2 ways
ditch
swale
The Swale
Water percolates through to the lower soil 2 ways
The Swale
Water percolates through to the lower soil 2 ways
The Swale
Water percolates through to the lower soil 2 waysWater provides extra
growth potential in the soil system
swale
swale
swale
Marked swale
Existing Pond SitePond 1
10 months in drum10 months in drum
Existing Pond Site
Pond 1
Swale 1
Swale 2
Dam Construction
Dam Construction
Dam Failure
Dam Construction
Dam Failure
Dam Construction
Dam Failure
Dam Construction
Dam Integrity
Remove valuable topsoil for later use
Dam Construction
Dam Integrity
Remove valuable topsoil for later use
Dam Construction
Dam Integrity
The dam key is the lock in the soil that allows a safety margin and prevents water from undermining the dam
dam key
Small Barrier dam for silt collection and protection of lower dams
Small Barrier dam for silt collection and protection of lower dams
Small Barrier dam for silt collection and protection of lower dams
Dam Construction
Dam Integrity
dam key
The dam key is the lock in the soil that allows a safety margin and prevents water from undermining the dam
Compressed soil
Dam Construction
Dam Integrity
dam key
The dam key is the lock in the soil that allows a safety margin and prevents water from undermining the dam
Compressed soil
Dam Construction
Dam Integrity
Freeboard
Freeboard is the level above water that allows a safety margin in case of a big rain event
Dam Construction
Dam Integrity
•Replace valuable topsoil for replanting and preventing muddy water
Dam Construction
Dam longevity
•Replace valuable topsoil for replanting and preventing muddy water•Plant cover crop to prevent silt•Trees are not in dam -- to prevent leaks/weakness
Shade slows evaporation
1. Deepen pond2. Fill old spillway3. Add swale
Existing Pond Site
Pond 1
1. Deepen pond2. Fill old spillway3. Add swale w/ spillway
old spillway
swale
spillway
Pond 1
swale
spillway Filling
The swale with a spillway tied to a dam collects water and flows it to the dam till it is full then backflows to the spill way gently releasing the rain water overflow through the spillway.
swale
spillway
Releasing
The swale with a spillway tied to a dam collects water and flows it to the dam till it is full then backflows to the spill way gently releasing the rain water overflow through the spillway.
Pond 1
Pond Site
Pond 1
1. Remove topsoil2. Cut dam key3. Build dam4. Add swale w/ spillway
Pond 2
Pond Site
Pond 2
damswale
Pond 2
Small Barrier dam for silt collection and protection of lower dams
Dam key to lock soil
Pond 2Pond 1
Pond 1
Pond 2
Pond 1
Pond Site
Pond 2
Pond 2
Pond 1
Pond 2Pond 1
Pond 2
Pond 1
Pond 3
Pond 2
Wall material after top soil is removed
Pond 3
Lowest edge
Dam key
Baffle drain
Pond Site
Pond 3
Dam 2swale
swale
Pond 3
Dam 3
Dam 2
Pond 3
Dam 3
Pond 3
Pond Site
Pond 3
Established vetiver for erosion control
Road improvement for water catchment
Road improvement for water catchment
Dam key to lock soil
Dam key to lock soil
Pond 2
Pond 3
Pond 3
Pond 3
Pond 3
Pond 3
Pond 3
Pond 3
Established vetiver for erosion control
Pond 3
Established vetiver for erosion control
Pond 3
Dam Integrity
Drainpipe without baffles will fail
Water Harvesting Drain pipes
Water Harvesting Drain pipes
Drainpipe with baffles
baffles stop leaks
Water Harvesting Drain pipes
Drainpipe with baffles
1” drain for irrigation
2” drain for irrigation
baffles stop leaks
baffles stop leaks
Inlay drain pipe
Manually pack drain pipe
Manually pack drain pipe
Manually pack drain pipe
Manually pack drain pipe
Manually pack drain pipe
Machine pack in layers
Established vetiver for erosion control
Established vetiver for erosion control
Established vetiver for erosion control
Moving vetiver for seedling multiplication
Established vetiver for erosion control
Moving vetiver for seedling multiplication
Established vetiver for erosion control
Moving vetiver for seedling multiplication
Established vetiver for erosion control
keyline
contour
Gulley 5Gulley 5
Gulley 4Gulley 4
Gulley 3Gulley 3
Gulley 2Gulley 2
Established vetiver for erosion control
Banana ring
6 months6 months
Established vetiver for erosion control
12 months12 months
Established vetiver for erosion control
Established vetiver for erosion control
Pond Site
Pond 3
5 year Master development plan - 3 hectares - tropical - 1,600mm annual rainfall30% pasture, 30% forest,15% water, 25% fruits/vegetables
swales
swalesswales
swales
swales
Pond 00
Pond 0
Pond 1
Pond 2
Pond 3
Pond 4Pond 5
Pond 00 - ridge damPond 0 - contour damPond 1 - contour damPond 2 - barrier/check damPond 3 - keyline damPond 4 - saddle damPond 5 - ridge dam
12,000L rainwater storage
Wat
er h
arve
sting
har
dwar
e -
hous
ehol
d &
road
Wat
er h
arve
stin
g ha
rdw
are
- roa
d
Hitachi work order
• Canal/road to pond 2• Pond 1 - Drain pipe w/ baffles
– Cut slot– Soil goes to road
• Clean up pond 1– Soil goes to pipe slot– Extra soil to road– Improve swale from pond 2
• Pond 3 clay removal– Vetiver removal– Cut key– Deep scraping and piling– Compacting– Banana rings– Swale spillway– Pond 3 - Drain pipe w/ baffles
• Pond 0• Canal to rice• Pond 00 -above rice paddy• Pond 4 - Bakers
