Home

EARTHCARE NEWS

APRIL 2000

I do what I can, where I am.

 

Weeding, Women and West Beach. Saturday, 8 April.

 

The day is perfect for weeding: blue sky, white clouds, a calm bay and lots of sunshine. In some patches Plantain is spreading thickly, preventing indigenous plants; such as the Beaded Glasswort (Sarcocornia quinqueflora) or Australian Salt-grass (Distichlis distichophylla), from flourishing. Today we are all women of different ages working together. Except for baby Hugh, who lies on a blanket so happily and plays with sand, sleeps, feeds, and then giggles with his watchful Grandmother. Someone jokes that we are like traditional gatherers, harvesting - weeds! Jo-Anne and Rebecca imagine the plants sigh with relief to have more space in the sand. Moving slowly across the site, sitting amongst plants and sand, there is much conversation, sharing of ideas, listening and quiet company. Ruth lives in a flat and really enjoys her hands being in the soil. Resting for hot cross buns, sandwiches and tea, we see how strong the patch of self-sown Knobby Club Rush (Isolepis nodosa) is growing. Surprises unfold: Josephine spots a tiny brown bird – Goldenheaded Cisticola. And what is that small white flowering ground plant that no-one remembers the name of? (Later, we know that it is Frankenia pauciflora) Jo-Anne loves the many changing colours of the Austral Seablite (Suaeda australis), which are mostly red now. Then Zoe arrives to help; she’s already been snorkelling above seagrass beds. It seems that there can be much more to a weeding day than just weeding.

 

Everyone is welcome to join us at the next weeding day at:

 

West Beach

Saturday May 13th

10am - 2 pm

 

We will be handweeding Plantain (again!) and some other nasties.

Please bring your own gloves and hand tools, drinking water, sunscreen and hat.

Refreshments, lunch and some gloves and tools will be provided.

Contact: Jo-Anne 9533 8707 for more information

 


 

Earthcare would like to thank Dennis Jones for the marvelous work he has done distributing the childrens’ book Alfreda The City Penguin.

Profits from the sale of this book have been used to improve fencing, vegetation cover, and public signage at the St. Kilda penguin sanctuary. Funds have also been used for vital research into penguin movements during the day and their food sources.

As you are aware the book is translated into Japanese and won an Australian Sister City Award in 1998. As a result visitors from Obu, our Japanese sister city, often attend the sanctuary and contribute to the cause.

The book is used by many Victorian schools and we have organised many children's excursions to the sanctuary as a result.

Alfreda The City Penguin is available from The Eco Centre for $10


 

Water Quality Testing

2pm May 7th

Cowderoy Creek

West Beach





 

Friends of Westgate Park aim to plant 10,000 plants this year and are having planting days every third Sunday of the month. They are off to a great start with the planting of 1500 wetland plants in March. In April they planted salt bush, and on May 21st they will be planting trees and shrubs.

They will be planting every third Sunday of the month

Please bring drinking water, hat, sunscreen and gloves.

 

Sunday May 21st 11am onwards with free veg bbq

Inquires Ph: Pol 9318 3455 or Naomie 9387 9041

 

 

 

 

 

 

WHATS ON

20th April, Friends Of Sandy Rail Reserve, The EcoCentre, 7.30pm

27th April, Earthcare meeting, Speaker Richard Hughes A Wildness Society Campaigner, The EcoCentre, 730pm

7th May, Water Testing at Cowderoy Creek, West Beach, 2pm

13th May, West Beach weeding, 10am- 2pm, contact Jo- Anne, ph. 95338707, for details.

16th May, Greening Australia Training Session, Environmental Philosophy. Cost $15.00. Contact Kay Strothers 9457 3024

18th May Friends of Sandy Rail Reserve meeting, The EcoCentre, 7.30pm

21st May, Planting Westgate Park, 11am. Contact Naomie ph: 9387 9041 for details

25th May, Earthcare Meeting, Featuring Anthropologist Sylvia Shaw – Born to be Wild, Childhood and Nature, The EcoCentre, 7.30pm

The EcoCentre is at the Corner Blessington and Herbert Streets, St Kilda

Earthcare Phone 0500 832 784

PO Box 287 Elwood 3184

 

 

The wisdom surrounding bamboo part 1

 

Using bamboo to fight oxidisation and bacterial build-up

The stem and bark of bamboo and the leaves of bamboo grass can be used in sterilisation, and have proven to be more effective than plants of the rice family in the prevention of oxidisation.

 

The following examples illustrate some of the properties of bamboo: when an animal dies in a bamboo forest it takes a considerably long time for it to rot, laying bamboo grass leaves at the bottom of a container in which you will place fish will remove the fishy smell, and wrapping fish that you will give as a present in leaves of bamboo grass will keep it fresher for longer.

 

Years ago when people went away on holidays they would wrap their lunches in bamboo bark and drink water from bamboo cylinders. Even nowadays bamboo and bamboo grass are used in many ways to naturally prolong the life of food. Silicic acid which is a component of bamboo and bamboo grass and terpen which is emitted from the leaf surface are said to contain polyphenol which is the agent which fights bacteria and oxidisation.

 

The benefits of bamboo contained in bamboo charcoal

  1. The absorbency of bamboo charcoal is greater than that of standard charcoal

Bamboo charcoal has basically the same structure as bamboo in its original form. Baking bamboo to make charcoal will result in it shrinking to about 1/3 of its volume, however the cross surface of these holes becomes a structure of minute pipes bundled together. The internal surface area of the holes can be measured using various techniques, though each provides slightly varying results. Generally the internal surface area is measured using the technique employed for charcoal, meaning that one gram of bamboo charcoal has a surface area of more than 300m², which is equivalent to more than 200 tatami mats. The surface area of a piece of this pipe charcoal the size of a small banana has a surface area equivalent to that of Tokyo Dome (which is approximately 10300 m²). The absorbency of bamboo charcoal can be attributed to the expansive interior surface area.

 

 

The BET law which is an analysis method used to determine the absorbency of bamboo charcoal shows that bincho charcoal has an absorbency of 2-5m², while bamboo baked at 800℃ has an absorbency of 50-60m², indicating that bamboo charcoal has up to 10times the absorbency strength as bincho charcoal. Charcoal that has been baked at low temperatures, and then cooled slowly becomes more porous and has a greater absorbency.

(2) The holes of bamboo charcoal attract microbes

One feature of bamboo charcoal is the honeycomb-like formation of the holes. There is no uniformity, and the sizes can range between 1angstrom to 1 micron, with holes being large or small and absorbency being related to micropores (minute holes whose sizes are measured in angstrom units).

 

The main components in the holes' surface are cellulose and lignin which are important in the conversion to charcoal, with the bonds being broken down to form a complex structure. All of the holes extend to the outer surface which means that air and water can readily pass through the holes, and also allows nutrients to easily enter and pass through the holes, leading to an increase in the presence of aerobic microbes. For example, in holes with a larger diameter actinomyces can be found, while those with a smaller diameter contain filamentous fungus. The minute gaps between the cells allow the bacteria which live there breathe. The living microbes that inhabit the surface of the holes make a microbial membrane in which impurities and other harmful chemical components of the water or organic components of the air are absorbed and retained.

 

 

PUBLIC FORUM

‘GREENHOUSE’ & CLIMATE CHANGE: GLOBAL TO LOCAL PERSPECTIVES.

Sunday, June 4, 2000, at 3.30pm to 6.00 p.m.

Cora Graves Centre , Blessington Street, St. Kilda (opposite the EcoCentre).

 

Port Phillip EcoCentre is proud to announce the first of its planned Environmental Forums to encourage informed public debate on important environmental issues.

 

A panel of four "greenhouse specialists" will summarise topics such as the physical, chemical and biological processes involved in bringing about climate change, how people affect this change, the current Australian National Greenhouse Strategy, and how YOU contribute to its successful implementation. There will be ample time for debate between the panel members and the public.

To assist catering, persons planning to attend are requested to inform the EcoCentre Coordinator as soon as possible by phone or e-mail. Admission is free but donations gratefully accepted.

Phone: 9209 6491. e-mail : ecocentr@portphillip.vic.gov.au .


CONTRIBUTERS

Neil Blake, Mark Casey, Meyer Eidelson, Rebecca Lucas, Russell Jenkins, Alison Strachan,

Naomie Sunner, Jo-Anne Thyer, Lucy Turner and Zoe Hogg

If you wouldlike to Contribute to future newsletter please email us on kingcasey@one.net.au

Earthcare President Alisonmrowe@compuserve.com.au

Vice president Josephine_sk@hotmail.com