Tag Archives: Agroforestry

Exploring Forest Gardens in Chile – Successional Aikedo

Vero and I have been exploring the south of Chile over the past week on our way to the Bio-construction conference and get together in Argentina. We’ve been having a great time around Valdivia where Vero’s former housemate live. He works at the Uni for the Forestry department as is a professor in regenerative forest ecology so I’ve been picking his brain about the processes that occur in the Chilean forest as it undergoes succession.

Arayyan. Relative to Tea Tree

Arayyan. Relative to Tea Tree

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VISITING BAMBRA AGROFORESTRY FARM AND ROWAN REID – PT2.

In late November I was down in the Otways learning agroforestry with Rowan Reid. It was a great opportunity for professional development and I hope I can pass on some of the information here.

Measuring up trees with a DBH tape to determine the volume of timber or carbon present in the tree

Rowan measuring up trees with a DBH tape to determine the volume of timber or carbon present in the tree

During my time on the course we were shown the proper technique to use when using a portable sawmill to value-add to trees on your property. Rowan had a Messmate tree (Eucalyptus oblique) which had fallen over in the wind.

In this video I explain why you would want to mill and then outline the cuts that we make to generate the largest possible amount of high value timber. The video shows Rowan using the portable sawmill and explaining his process as he saws down the timber. The video quality is not great as I had some problems with my SD card and had to use another with a smaller capacity.

Post your questions in the comments

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Visiting Bambra Agroforestry Farm and Rowan Reid – pt1.

For the last two weeks I’ve had the pleasure of staying at the Bambra Agroforestry Farm (http://www.agroforestry.net.au/) with a number of other students as part of my Forestry Studies. It is a great place if you have a chance to visit and I’ve learned heaps about Farm Forestry from Rowan.

Our first stop was to visit a colleague of  Rowan’s, Andrew Stuart, who is a member of the Otways Agroforestry Network who create a support network for farmers wanting to learn and undertake farm forestry. Andrew manages his property which is 230ha and his family has managed the site for 5 generations. Following Andrew’s realisation that the land and catchment was becoming degraded, he bagan working with Rowan to redesign his property.

A combination Shelterbelt and Timber planting along a waterway

A combination Shelterbelt and Timber planting along a waterway

One great technique was the planting of timber species along the water-ways. This allows the trees to stabilise the banks of the river while providing water for the timber trees. The planting can subsequently be selectively logged to generate timber for use of farm or sale and the regenerated riverbank stays in tact.

However, the best thing I saw on Andrew’s property was his shelter-belts. These are hugely important for him as they provide protection for his sheep when birthing lambs and following shearing. Cold winds are responsible for the death of many sheep and lambs when they are vulnerable and his shelterbelts help to keep his livestock healthy.

5 row innovative shelter belts

5 row innovative shelter belts

To properly block the wind, a shelterbelt requires multiple layers so that winds can not pass above or below the trees. Andrew uses a range of useful shrubs between his wind-break eucalypts. In the future, some of the Eucalypts could be harvested for timber without compromising the shelter-belt planting. It used to be thought that wind-breaks and shelter-belts needed to be planted like a ramp to lift the wind up but this has been disproved. As a result, farmers have more options when designing shelterbelt plantings as long as they keep them multi-layered. Selecting 5 rows of trees and shrubs is also important as it is very difficult to re-establish a tree in a gap in a shelterbelt as it becomes a location where the wind can funnel through, drying out establishing seedlings.

 

Checkout Andrew’s story here: http://www.agroforestry.net.au/main.asp?_=Yan%20Yan%20Gurt%20West and try to visit on a tour if you are in the area. I hope that this information helps you with your shelter-belt design.

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