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Yarnauwi Farm

~ Fleurieu Peninsula, South Australia

Yarnauwi Farm

Tag Archives: waterways

The Second Annual TBC Tree-planting Extravaganza

19 Saturday Jul 2014

Posted by Joel in ecology, events, regeneration, trees

≈ 2 Comments

Tags

ecology, erosion, events, farm, kangaroos, planning, revegetation, southwestern Fleurieu, trees, waterways, winter, zones

The 'before' photo: 800 new plants in position. Stay tuned over the next 20 years for the 'after' shot.

The ‘before’ photo: 800 new plants in position. Stay tuned over the next 20 years for the ‘after’ shot.

Over the weekend of the 12-13 July, around 30 dedicated volunteers descended on TBC for our annual tree-planting fiesta. Over two days, we managed to plant some 800 locally indigenous plants in the two ‘wilderness zones’, kick-starting their transition back to pink- and red-gum woodland. The first area was planted outwards from the former Bee House (currently tree-planter snack dispensary and rain shelter) with around 600 plants selected to address the water-logging in the area and to revegetate in and around erosion gullies. The second area saw the planting of around 200 plants, radiating from the existing remnant redgums. Once again these plants were selected to address water-logging and erosion as well as provide shelter to adjacent paddocks. Over the following week, we dodged thunderstorms and icy squalls to add another 150 or so plants, with about 200ish to go! Continue reading →

Erosion control: 15 months on

22 Tuesday Apr 2014

Posted by Joel in ecology, planning, regeneration, waterways

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Tags

design, ecology, erosion, planning, seasons, soil, southwestern Fleurieu, summer, water, waterways

One of the first interventions we made on the property was trying out some very rough erosion control on this scoured patch on our boundary. Earthworks from recent fencing had disturbed the soil and invited headcuts to form. With help from Pete and Freya, we tentatively set up a couple of lo-fi erosion strategies, informed by the work of Watershed Artisans (formerly Dryland Solutions) and Brad Lancaster, both of whom we’ve gushed about before. We reshaped the main headcut to soften the overflow, and positioned some kind of mutant One Rock Dam/Zuni Bowl at an intersection between two small headcuts – not something I’d do again. We also positioned a One Rock Dam on contour above the entire area in an effort to slow and disperse water flow.

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A scoured, erosive patch, December 2012.

Continue reading →

A One-Page Place Assessment for TBC Farm, Second Valley

30 Sunday Mar 2014

Posted by Joel in ecology, planning, regeneration, waterways

≈ 2 Comments

Tags

books, design, ecology, permaculture, planning, revegetation, seasons, soil, southwestern Fleurieu, trees, water, waterways

Brad Lancaster’s books on Rainwater Harvesting would have to be among the most consistently inspiring books we own. Two volumes into his trilogy on Rainwater Harvesting for Drylands and Beyond, Lancaster combines accumulated community wisdom with permaculture principles to produce lavishly illustrated, practical and highly accessible manuals for managing water in urban and rural environments. Consistent with permaculture thinking, Lancaster urges land managers to spend time observing the season patterns of the landscape to more effectively design for sustainable, integrated water management. One method of doing this is to compile a One Page Place Assessment, drawing together essential climatic and ecological information about your particular location.

Our first year has been one of spreadsheets, mapping out our seasonal observations and activities, and the One Page Place Assessment concept is a elegant way of compiling climatic data from Second Valley and the surrounding area. We’ve finally completed the first version of a place assessment for our property, with much of the data drawn from Bureau of Meteorology stations nearby (Myponga Reservoir being the furthest). While we have tailored information to our particular location, we hope it will be of use to other landowners in the region. We have also referenced information sources so others can draw on the same resources in exploring their own area.

You can download our One Page Place Assessment here. Continue reading →

Travels in Inter-Tussock Space: Planning for Woodland

10 Monday Mar 2014

Posted by Joel in ecology, planning, regeneration

≈ 3 Comments

Tags

design, ecology, erosion, kangaroos, permaculture, planning, revegetation, seeds, soil, southwestern Fleurieu, trees, waterways, zones

We’ve seeded our last 150 tubes in preparation for planting in a few months time. When the rains come, we’ll have over 1000 plants ready to go. Most are destined for the regeneration areas we’ve fenced around the waterways, but a few others are non-indigenous livestock fodder plants, timber trees and food plants we’ve raised from seed and cuttings to begin developing other zones around the farm.

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It’s a Pink Gum Woodland, it just doesn’t know it yet.

Late in 2013, along with a posy of other plant nerds, we attended a workshop with botanist Ann Prescott (author of It’s Blue with Five Petals) to explore ideas behind revegetation for habitat. We walked through remnant woodland in the hills above Yankalilla, and tried to imagine how our farm might have looked 180 years ago. Continue reading →

Clearing the Junk (aka. Ute-based Art)

19 Sunday Jan 2014

Posted by Joel in art & craft, regeneration, waterways

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art, erosion, history, recycling, reuse, ute, waste, waterways

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“Tangents in the landscape” (detail), 2014, mixed media installation, fencing wire, ratchet straps and Holden Rodeo ute

A day spent hauling junk out of gullies can put you in a philosophical mood. When we first purchased this property, we were drawn to the erosion gullies filled with generations of farm rubbish with a kind-of masochistic fascination. After a year of hauling, stacking and shunting loads to the dump or recycling depot, today we loaded up our ute with the final bundles of unruly and ancient fencing wire.

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Bye-bye horror horse!

The most recent round of dump trips has also been momentous in that it finally marks the banishment of a terrifying, rusted and threadbare rocking horse from the property. The horror horse, wedged between rusted 44-gallon drums stuffed with irrigation pipe and topped with a decaying mattress, formed one in a series of mobile art installations mounted on the back of the ute, displayed for a brief, one-time-only journey between our block and the Yankalilla dump. A number of more conceptual, minimalist pieces followed shortly after, composed of snarls of fencing wire of assorted vintage. Continue reading →

The First Phase of Fencing: Marking Zone 5

17 Tuesday Dec 2013

Posted by Joel in ecology, livestock, planning, regeneration, waterways

≈ 3 Comments

Tags

building, ecology, erosion, fencing, kangaroos, livestock, permaculture, planning, revegetation, trees, waterways, zones

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The gate into the top end of the northern revegetation area

While our impact on this landscape has been pretty minimal so far, with the completion of our first phase of fencing, we’ve begun more major infrastructure works. We’ve started by fencing off two big chunks of ground encircling the erosion gullies, surrounding them with a roughly 20-metre buffer zone for future woodland regeneration.

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Neat knots

In a permaculture sense, these patches of ground will be our Zone 5, our minimal-management ‘wilderness’ zones, designed for habitat and ecosystem services such as erosion and salinity control and water filtration. Abutting our western boundary they form a link with the creeks and swamps that feed the Congeratinga River. With these zones now marked onto the landscape we can plan outwards towards zones of increasing management intensity. Continue reading →

The trials of tree-planting: ideas for roo-proofing reveg

01 Sunday Sep 2013

Posted by Joel in ecology, planning, regeneration, waterways

≈ 2 Comments

Tags

ecology, erosion, kangaroos, planning, revegetation, seasons, soil, trees, waterways, winter

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Kangaroos: so cute, yet so merciless.

One of winter’s most exciting prospects was the chance to get some trees in the ground. Our strategy for revegetation has been to try to build islands of vegetation in the most vulnerable areas, with the view to expanding them outwards until they connect up. We were aware that the kangaroos would take an interest, but just how much of an interest we were unprepared for.
Continue reading →

Hitting the surf: Measuring dam capacity

05 Monday Aug 2013

Posted by Joel in diy, planning, waterways

≈ 1 Comment

Tags

planning, seasons, water, waterways, winter

IMG_2869With our dam now full, one task that’s been on our list since summer is to calculate its approximate capacity to aid with planning our watering infrastructure. We found a couple of possible methods: the Western Australian Department of Agriculture has a very thorough approach, while the Victorian Department of Primary Industries offers a rougher option. We opted for the Victorian method, not least because it offered a chance for us to take our very patriotic inflatable adventure craft out onto the pond.

Continue reading →

After the rain: erosion control after 6 months

11 Tuesday Jun 2013

Posted by Joel in diy, ecology, regeneration, waterways

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Tags

ecology, erosion, kangaroos, revegetation, soil, trees, water, waterways, winter

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A Juncus seed head on one of the ridgelines.

With a landscape scarred with a history of erosion, and soil associations that the CSIRO SoilMapp discusses in the most nervous of tones, we’d been apprehensive about this season’s heavy rains. After two days of constant downpours, the water sat on the surface, filled every hollow and started to run in strange new flow patterns along the most unexpected of ridgelines. Neighbours told us they hadn’t seen rain like that for some years, and that erosion headcuts had been reawakened all through the surrounding valleys.

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Zephyr Creek before and after: now with less car bodies and more trees!

It was a relief to see that our improvised erosion control strategies (use local materials; slow water flow with rock, fallen timber or mulch; always work on contour; get plants in the ground) had all worked to some degree. Indeed, areas where we had made an intervention, however minor, fared much better than areas without. After the dryness of summer it was unexpectedly thrilling to see water flow, vegetation spring up around the branches we stacked across drainage lines, and most of all, creek banks where we’d removed car bodies didn’t slump and be carried off into the neighbouring paddock.

Continue reading →

Trees, cheese and breeze

10 Monday Jun 2013

Posted by sophie in ecology, regeneration, waterways

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Tags

ecology, erosion, kangaroos, revegetation, trees, waterways

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Last weekend we got in the first of (hopefully) many rounds of tree plantings. The ground was soaked after a full two days of rain, the clay soft and pliable, perfect for slipping in the planned 250 trees in several exposed areas of the property where rubbish extraction has opened the now-cleared banks up to more erosion. A team of weather-trusting family and friends came along for the adventure, some planting trees for the first time, others professional tree planters. Continue reading →

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