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Yarnauwi Farm

~ Fleurieu Peninsula, South Australia

Yarnauwi Farm

Tag Archives: ecology

Book Review: Embracing an arid future in “Growing Food in a Hotter, Drier Land”

19 Wednesday Mar 2014

Posted by Joel in ecology, planning, reviews

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bees, books, design, ecology, food, permaculture, planning, revegetation, seeds, soil, trees, water

Years before there was talk of locavores and 100-mile-diets and omnivore’s dilemmas, I came upon Gary Nabhan’s book Coming Home to Eat, a personal account of his experiences striving to solely eat food produced in his home bioregion of the US-Mexican borderlands in southern Arizona. His observations as renowned desert ecologist and ethno-botanist redefined how I thought about food and sustainability and accompanied me on my own sustainable food explorations for years after.

I get the feeling that his latest book, Growing Food in a Hotter, Drier Land: Lessons from Desert Farmers on Adapting to Climate Uncertainty (Chelsea Green, 2013), may be another companion for us in our adventures on the farm. While Growing Food is as practical as its title suggests, it is permeated by Nabhan’s respect for the insights of cultures deeply connected to the land, and his belief that communities connected to their bioregion are the most resilient in the face of environmental change. Continue reading →

Travels in Inter-Tussock Space: Planning for Woodland

10 Monday Mar 2014

Posted by Joel in ecology, planning, regeneration

≈ 3 Comments

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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 →

Bee-house update: Roo-house?

11 Tuesday Feb 2014

Posted by Joel in diy, ecology

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bees, building, ecology, kangaroos, seasons, southwestern Fleurieu, summer, water

Nature abhors a vacuum

Following the evacuation of its previous residents, the bee-house has not remained vacant for long. Offering waterside views and passive solar design, resident roos have recently been spotted conducting an open inspection of this prime real estate.

There’s something different about you…

11 Tuesday Feb 2014

Posted by Joel in ecology, regeneration

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ecology, photography, revegetation, seasons, southwestern Fleurieu, summer, trees

IMG_3630River red gums (Eucalyptus camaldulensis) are notorious limb droppers. With the recent blistering temperatures (Adelaide’s been experiencing been experiencing strings of days above 40 degrees Celcius, and the normally milder Southern Fleurieu has had days in the early 40s) and a burst of gale-force winds, one of our two remnant red gums has lived up to its notoriety. 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 →

A Year on the Block

27 Wednesday Nov 2013

Posted by Joel in ecology, planning, regeneration

≈ 2 Comments

Tags

bees, design, ecology, erosion, history, kangaroos, permaculture, planning, seasons

TBC2013November marks one year since we began our relationship with this patch of soil, grass and rusty car parts. If the permaculture imperative is to obtain a yield, then the yields of this first year have been largely intangible, but no less real. It has been a year of observing and learning about the land, ourselves and what we can do here. I remember emotions I was feeling about this project a year ago, and I think my terror has been mostly balanced by a sense of calm. Where 12 months ago I was overwhelmed by the scale of our ignorance, now, our ignorance is still largely intact, but I’m more confident in our collective abilities as a family, nested within a community, to unravel the challenges we face. Continue reading →

Learning the land with ‘The Biggest Estate on Earth’

12 Saturday Oct 2013

Posted by Joel in ecology, regeneration, reviews

≈ 4 Comments

Tags

books, ecology, history, kangaroos, permaculture, revegetation, soil, trees

In The Biggest Estate on Earth (Allen & Unwin, 2011), historian Bill Gammage describes a detailed vision of Aboriginal land management prior to European colonisation of Australia. While many Australians have a broad sense that “fire-stick farming” was (and is) a tool used by Aboriginal people, The Biggest Estate on Earth begins to fathom how finely tuned Aboriginal fire use was. With fire as one of a suite of tools, Aboriginal people across the Australian continent carved the landscape into a mosaic of ecosystems, each harbouring plants and animals of differing sensitivity to fire, each maintained to maximise ecological diversity and each nested within the other to increase the ease of hunting or harvesting. For Gammage, Aboriginal land management across the continent was directed by three main principles: “ensure that all life flourishes; make plants and animals abundant, convenient and predictable”; and to “think universal, act local”. 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 →

After the rain: erosion control after 6 months

11 Tuesday Jun 2013

Posted by Joel in diy, ecology, regeneration, waterways

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

IMG_2573

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

IMG_2532_2

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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