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Yarnauwi Farm

~ Fleurieu Peninsula, South Australia

Yarnauwi Farm

Category Archives: planning

Maintain the rain! Piecing together the past to imagine a future

05 Thursday Mar 2015

Posted by Joel in ecology, history, planning, regeneration, trees, waterways

≈ 2 Comments

Tags

art, ecology, erosion, farm, history, livestock, photography, planning, revegetation, seasons, soil, southwestern Fleurieu, summer, trees, water, waterways, winter

It’s been a dry year on the Fleurieu Peninsula. After the inundation of 2013, 2014’s rainfall came in almost 200mm shy of the year before, and about 100mm short of the average. By February 2015, the dam had receded to a few centimetres of sludge, and the water carter had come to top up the stock water tanks. While there’s no doubt that the Fleurieu Peninsula has had the Mediterranean pattern of dry summers and cool, wet winters for some time, recently I’ve begun to wonder whether this pattern has shifted towards greater aridity as successive land-uses have cleared the landscape.

Curruckalinga, looking over St. Vincent’s Gulf, 1846, George French Angas, depicting a mosaic of woodland and open grassland. From the description: “This view is taken from the rocky hills near Mr Kemmis’s Station, to the northward of Rapid Bay … The undulating appearance of the country here represented, together with the singular manner in which the trees are dotted about in all directions over the landscape … principally ‘casuarinae’ or she-oak, with ‘eucalyptus’.” From the collection of the State Library of South Australia, B15276/33.

At the time of European colonisation, the Fleurieu Peninsula was most likely covered with a mosaic of woodland, forest and grasslands, maintained through Aboriginal burning and land management practices. In his paper on the discovery and settlement of the Fleurieu (1986), Rob Linn draws from the diaries of settlers in his descriptions of the landscape of the South Western Fleurieu. Writing in 1838, William Giles described the landscape around Rapid Bay, as “a most beautiful valley, the soil of great depth covered with most luxuriant herbage … on the sides of these hills we found plenty of keep for sheep, and wherever the grass had been burnt in these places it was looking beautifully verdant … fine land, excellent water, plenty of timber …” This was echoed by John Stephens in 1839, describing the “country from Cape Jervis upwards” as “very picturesque” and “well-timbered” (Linn 1986). Continue reading →

Testing water quality

27 Tuesday Jan 2015

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

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design, ecology, farm, permaculture, planning, seasons, southwestern Fleurieu, summer, water, waterways

IMG_5573

The DIY water testing kit, including big buckets, little buckets, ice-cube trays, teaspoons, magnifying glass, pH strips, homemade Secchi disk, EC meter, pool net, boots, ID charts and recording sheets. If you have a toddler in attendance, you may consider a change of clothes for yourself and toddler.

Inspired by permaculture’s commitment to observation, over the last couple of years, we’ve become enthusiastic/compulsive gatherers of data about our farm. Everything we can think of to measure, we’ve tried to measure. Now, as we scale up our interventions, we can begin to track our impact and refine our management accordingly. As part of this, we’ve started a seasonal water quality testing program to monitor changes in the quality of our catchment as we revegetate the catchment and manage grazing more intensively.

We’ve assembled our own water testing kit, all stored conveniently in a secondhand mayo bucket from the local chip shop. Using this, there are a few characteristics we’ll test seasonally:

  • salinity and temperature (both tested using an EC (Electrical Conductivity) Meter from your friendly local hydroponics vendor),
  • pH (tested using pool pH strips from the hardware shop),
  • turbidity is a measure of the amount of solids suspended in the water (measured with a DIY Secchi disk or turbidity tube),
  • macroinvertebrate populations, the presence and composition of which is also an indicator of pollution levels (gathered with buckets and nets, and sorted with teaspoons into ice-cube trays).

Continue reading →

The Farm Year in Review: 2014

18 Thursday Dec 2014

Posted by Joel in events, livestock, planning, regeneration

≈ 6 Comments

Tags

design, ecology, events, farm, fencing, food, hiking, livestock, permaculture, planning, propagation, revegetation, seasons, sheep, southwestern Fleurieu, summer, tractor, water, winter, zones

2014 was a year where the dry season came early and stayed late. It seemed as if the rain barely had a chance to soften the ground and throw up some soursobs before our clay soils began to crack again and the pasture browned off. Despite this, after two years observing the rhythms of this patch of ground, I feel like we’re becoming more resilient and optimistic: where previously we despaired at every lost seedling, now we celebrate every survivor.

shingleback

Summer: a shingleback lizard soaks up some sunshine.

In the spirit of permaculture, this year also marks a transition from our observational period towards beginning to implement infrastructure for a sustainable farming enterprise. With fencing and water infrastructure for livestock, our appreciation of the need for water only deepens, and despite its challenges, we’ve learnt to stop worrying and love winter.

Continue reading →

Regeneration: Two years of practising patience

16 Sunday Nov 2014

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

≈ 4 Comments

Tags

before and after, ecology, erosion, farm, fencing, kangaroos, permaculture, planning, propagation, revegetation, seasons, southwestern Fleurieu, trees, waste, waterways

IMG_5332

Some might consider Shark-mesh overkill for allowing rushes to regenerate.

In our first year of working on the farm, we really tried to practise the permaculture principle of long and thoughtful observation, but it always competed with our own impatience to see change. In that first flurry of clearing gullies and planting seedlings, I remember trawling the internet for before-and-after shots of other people’s reveg projects: something to help imagine a future for the block. Seasoned tree-planters told us we’d see real change in five years, the optimistic suggested three, others, fifteen.

PycnanthaRegen

Self-regenerating golden wattle (Acacia pycnantha) after two years, and protection from kangaroos. This wattle was one of four trees present on the entire property in 2012.

Now at the two year mark, we are noticing change. Removing cattle and fencing sensitive areas has allowed a fuzz of groundcover to begin growing over the barest of gullies. Fences have reoriented deer and kangaroo movement and grazing patterns. Some seedlings planted in the cold, soggy winter of 2013 appeared to die, but then surprised us by resprouting and growing at a cracking pace the following autumn. Other plants that were repeatedly pruned back to their tree-guard height by roos have invested their growing energy into roots and woody stems.

Continue reading →

Fencing Phase 2: Rotational Grazing and Zoning

06 Thursday Nov 2014

Posted by Joel in livestock, planning, regeneration

≈ 3 Comments

Tags

design, farm, fencing, kangaroos, livestock, permaculture, planning, revegetation, sheep, southwestern Fleurieu, zones

IMG_5287_2

A new fence and a kangaroo. Neither are particularly concerned about each other.

A year or so ago, we celebrated the first phase of fencing on the farm: defining our ‘wilderness zones’ by carving out seven-ish hectares of erosion gully, remnant vegetation and waterlogging for regeneration. We commented at the time at how much a few posts and wire redefines a sense of space. Now we’ve almost completed all of the major fencing for the property. What began as essentially one vast, 20-odd hectare paddock, has now been reshaped into 8 smaller paddocks, together with 3 revegetation zones/habitat corridors. Continue reading →

A moveable sheep shelter

22 Monday Sep 2014

Posted by Joel in diy, livestock, planning, trees

≈ 2 Comments

Tags

building, design, farm, fencing, hack, livestock, recycling, reuse, sheep, southwestern Fleurieu, summer, trees

The moveable sheep shelter in fresh pasture.

The moveable sheep shelter in fresh pasture.

While the name Trees, Bees and Cheese might suggest otherwise, one thing we’re short on is trees. So with the arrival of sheep, and now lambs, we’ve tried to get in before summer with a sheep shade-shelter. With our soon-to-be-complete subdivision of the property into smaller paddocks, we thought we’d build a moveable shelter that would allow us to rotate it from paddock to paddock with the flock, rather than building seven or eight smaller structures. Continue reading →

Propagating Oaks 1: Germination

02 Wednesday Jul 2014

Posted by Joel in diy, livestock, planning, propagation, trees

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food, livestock, nursery, permaculture, planning, propagation, seeds, trees, winter

An English oak seedling (Quercus robur) reachers towards the winter sun.

An English oak seedling (Quercus robur) reaches towards the winter sun.

Back in autumn, we gathered freshly fallen acorns from the base of a row of massive old English oaks (Quercus robur). Inspired by the dehesa agroforestry systems of Spain and Portugal, we’ve often pondered how a livestock-grazed oak plantation could work on the property. Acorns for pigs, and perhaps even human consumption, timber for the use of our great-great-grandchildren, and in the meantime, a carpet of fallen leaves offering organic matter for composting and mulch. So, with some bags of acorns and few containers of the topsoil and leaf litter from around the parent oaks, we set to propagating them.

We mixed the leaf litter and gathered topsoil in with our potting medium, hoping to inoculate our own medium with beneficial fungi, and then planted the acorns. We planted some close to the surface, and others about an acorn-width deep. After about eight weeks of being kept damp and left in the late autumn-early winter sun, they began sending their first shoots upwards, red furry things with a cluster of jagged leaves at the top. The depth of the acorn doesn’t seem to have had any bearing on their readiness to propagate. Once they’ve all emerged and are about 8-10 cm tall, we’ll carefully thin them, planting out excess strong specimens to their own pots until we have one decent plant per pot.

Grow little seedling, grow!

Grow little seedling, grow!

Book Review: Growing a sustainable farm with ‘Farms with a Future’

28 Monday Apr 2014

Posted by Joel in planning, reviews

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Tags

books, permaculture, planning

In her book Farms with a Future (Chelsea Green, 2012), American small farm consultant, sometime-homesteader and former family rancher Rebecca Thistlethwaite offers a brisk, yet detailed, guide to building and running a sustainable farm business. Writing on a range of essential topics including marketing, land access, finance and business planning, equipment, soil and water management, record-keeping and human resources her writing is concise and targeted, supported by her own experiences together with a selection of excellent case studies describing how the principles outlined are expressed in the real world. Each chapter offers a discussion of key issues and strategies for sustainable farms, a case study and summary of short, sharp “Take Home Messages” drawn from the text. While it is necessarily written for a North American audience, and some US-focussed sections on regulation or financing can be skipped over, there is still much here to inspire Australian readers. Continue reading →

Uses for tyres: livestock shelters

24 Thursday Apr 2014

Posted by Joel in diy, livestock, planning

≈ 2 Comments

Tags

building, design, livestock, permaculture, planning, recycling, reuse, southwestern Fleurieu, waste

IMG_3345

Pete, lifter of heavy things, Employee of the Month

Earlier in the year, our friend Pete decided that the time was right to haul the last clump of tyres from Zephyr Creek. It was about 8 o’clock at night, and after a cursory glance, he predicted that there “couldn’t be more than 30 or 40 in there.” Almost 200 tyres later, Pete had earnt his “Employee of the Month” status, and with assistance from Will, had built a respectable tyre mound on the edge of the creek. Thanks. I think.

IMG_3965

The elegant, sinuous form of a tyre sheep shelter, modelled by tyrechitects Abi and Shane.

The patch buried under tyres is slated for revegetation this winter, so we couldn’t leave the tyres there indefinitely, nor could we afford their disposal fees, nor could we find any earthship or go-kart track builders interested in taking them off our hands. So after pondering them for a while, we settled on Option E: using them to construct sheep shelters. 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 →

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