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Yarnauwi Farm

~ Fleurieu Peninsula, South Australia

Yarnauwi Farm

Tag Archives: before and after

A tale of three woodlots

31 Sunday Jan 2021

Posted by Joel in trees

≈ 2 Comments

Tags

agroforestry, before and after, silvopasture, trees, woodlots

We’re big fans of trees, and in parallel to our attempts to restore habitat with indigenous plants, we’ve also worked to establish a number of woodland plantings managed for firewood, timber and other uses. In the spirit of permaculture, these woodlots are designed to serve a number of functions.

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Time and change: revegetation inspiration

10 Monday Jul 2017

Posted by Joel in ecology, regeneration, trees

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Tags

before and after, ecology, events, Fleurieu Coast, kangaroos, planning, revegetation, seasons, southwestern Fleurieu, trees, winter

Impatient as we are, we’ve become slightly obsessive about “before-and-after” photos in an effort to stay inspired about the possibilities for landscape transformation. About 15 minutes down the road from Yarnauwi, our friends David and Gillian have been gradually revegetating a former grazing property in the hills above Cape Jervis. Perhaps because of its steepness, the property has retained a good number of big old pink gums, together with the occasional ancient sheoak, offering the beginnings of a canopy for regeneration. Seven years ago we helped out with one of their first planting weekends, and I recently unearthed some photos taken at that time. With David, we recently walked around the property to admire the last seven years of growth.

View 1: 2010

View 1: 2017

David and Gillian have been philosophical about kangaroo grazing, with plants getting no more protection than korflute guards. Some plants have been repeatedly mowed down, reaching no higher than the tree guard after seven years, while others have finally stretched above mouth height and are now heading skywards. David notes that no plants were about adult should height for the first five years – something we can relate to at Yarnauwi. Continue reading →

Winter and the One Rock Dams: erosion control after the rain

24 Sunday Jul 2016

Posted by Joel in ecology, planning, regeneration, waterways

≈ 4 Comments

Tags

before and after, ecology, erosion, farm, Fleurieu Coast, one rock dam, planning, reuse, seasons, soil, southwestern Fleurieu, water, waterways, winter

IMG_8265

Rain, and a full dam.

By late July this year we’ve already exceeded our entire rainfall for 2015, and for now, the rain shows no signs of abating. This is fantastic news for our revegetation efforts, and our dam is now almost full for the first time in two years. With heavy rains – we managed to top 100mm (4 inches) in a single day – it’s also a chance to test the effectiveness of the erosion control strategies we’ve employed.

With significant erosion in some key areas of the property, we’ve worked to adapt erosion control strategies such as those practised by Bill Zeedyk and Craig Sponholtz (see April’s Waterway Restoration workshop/working bee and our Resources page for more information). In particular, we’ve constructed Zuni bowls, for arresting headcuts, and One Rock Dams, to slow water flow, catch sediment and gradually lift the floor of erosion gullies. After the recent deluge, we toured the works to see how we went. The Zuni bowls have had mixed success: those in relative stable locations have been effective, those in dispersive soils have been unpredictable. The One Rock Dams (ORDs) have been generally successful, if swamped by sediment!

The impact of 100mm of rain in one day is significant: exposed areas lose significant amounts of soil (some areas of gully floor had almost 30cm of freshly deposited sediment), and areas of dispersive soil go berserk, collapsing in all directions. For some of these areas, we’re continually seeking further advice, but for those we can manage, we monitor and tweak over time, and try to “let the water do the work” in healing the landscape.

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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.

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What We’re Writing About

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