THE SUSTAINABILITY CENTRE
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Treebog

A Treebog is a form of water-less toilet which can have a wide range of species - both trees and wetland marginal plants planted around it.

Effectively, it is a system for converting urine and fæces to biomass without the need to handle this material. It can be harvested once composted - 'humanure' and used as an excellent fertiliser.
  • A seating platform/cubicle is mounted at least one meter high. The area beneath the seating platform is enclosed by a double-layer of chicken wire allowing air to circulate.
  • Sawdust, straw, woodchip, ash or other high carbon matter is used to balance the high nitrogen faeces. 
  • The space between the wire is stuffed with straw which acts as a wick to help sop up excess urine preventing the likelihood of odour problems due to incomplete biological absorption of the nitrogen from the urine. The straw filled wire also enables the pile to be well-aerated whilst acting as a visual screen for the first year’s use.
  • The planted species should be nutrient "hungry" and ideally be harvestable too. Willow cultivars which can be used as a coppice crop are ideal.
  • Apart from willow coppice, soft fruit such as black currants and sweet smelling herbs like mint will thrive around a Treebog.
  • Both the solids and liquids are deposited within the Treebog base where the solids compost and the liquids soak through the soil and its associated dense rootzone where the nitrogen is rapidly absorbed and metabolised by the mycorhyzal species.
  • Our Tree Bogs are not surrounded by willow but are situated in our woodland and the trees take up all of the moisture.

 

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Our tree bogs and a wheelchair accessible privy were built by the Wye Wood Project in Herefordshire with help from our volunteers.
​
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Earthworks Trust & Earthworks Foundation

​The Sustainability Centre is owned and operated by ​The Earthworks Trust (Charity No.1079866).
Our trading company is Earthworks Foundation. All profits go to support our charity The Earthworks Trust.

SITE VISITORS

Please be aware that our 55 acre site is privately owned. Customers and clients are welcomed at their own risk. All visitors are reminded that this is a countryside site and all tracks, paths and car parks are informal, uneven and may not all be suitable for people with mobility issues.
As we are located in the South Downs National Park dark skies zone, there is no lighting on site after dark.
We advise sturdy, appropriate footwear at all times and use of a torch at night.


​Charity Number ​​ 1079866

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Main Address

The Sustainability Centre 
​Droxford Road,
East Meon, Hants
​GU32 1HR
01730 823166

Reception

01730 823166
​info@sustainability-centre.org

South Downs Eco Lodge & Camp Site

South Downs Eco Lodge
​The Sustainability Centre 
​Droxford Road,
East Meon, Hants
​GU32 1HR
01730 823549
​​accommodation@sustainability-centre.org

Cafe

01730 823755
infobeechcafe@gmail.com  

Burials

​01730 823425
​burials@sustainability-centre.org

Education

​01730 823166
​education@sustainability-centre.org

Courses

01730 823166
​courses@sustainability-centre.org

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  • Home
    • Covid Announcement
    • What Is Sustainability
    • All About Us >
      • History
    • Awards
    • Bursary
    • Beech Cafe
    • Staff Team & Trustees
    • Job Opportunities
    • Partnerships >
      • Onsite Partners
    • Site Map >
      • Map
    • Find Us
    • Opening Hours
    • Contact Us >
      • Join Mailing List
      • Leave Mailing List
  • What's On
    • Evening Talks
    • South Downs Green Fair
    • Talk & Tour
    • Art Exhibitions >
      • Past Exhibitions
      • Pete Levy
    • Room & Space Hire
    • Terms and Conditions
  • Courses
    • Adult Courses >
      • Craft and Upcycling Courses >
        • Festive Fabric Crafts Course
        • Fabric Baskets Course
        • Felted Robin Workshop
        • Natural Cleaning Workshop
        • Natural Cosmetics Workshop
      • Wood Craft Courses >
        • Advanced Knife Skills
        • Gate Hurdle Making Course
        • Pendant Carving Course
        • Spoon Carving Course
        • Stool Carving Course
        • Trug Making Course
      • Willow Craft Courses >
        • Living Willow Tree Course
        • Willow Festive Decorations Course
        • Willow Frame Basket Course
        • Willow Garden Sculpture
        • Willow Garden Craft Course
        • Willow Weaving Weekend
      • Home and Garden Courses >
        • Clay Oven Building Course
        • Compost Toilets Course
        • Kitchen Gardening Course
      • Forest School Training >
        • Climbing Frames, Ropes & Ladders with Jon Cree
        • Forest School Leader Training
        • Forest School Taster Day
        • Supporting Children through Anxiety and Trauma with Jon Cree
      • Health & Wellbeing Courses >
        • Medicinal Herb Workshops
        • Mental Health First Aid Course
        • Youth Mental Health First Aid Course
      • Nature Connection and Folklore Courses >
        • Art, Sound and Meditation Course
        • Foraging, Fire and Folklore
        • Nature Led Meditation
        • Unwind in the Woods
      • Permaculture Courses >
        • Intro to Permaculture Design Course
      • Sustainable Land Management Courses >
        • Coppicing Course
        • Hedgelaying Course
        • Wildflower Meadows Course
        • Woodland Management
    • Online Experiences
    • Gift Vouchers
    • Discounts and Benefits
    • Courses Waiting List
    • Contact the Courses Team
    • Courses Terms and Conditions
  • Accommodation
    • Bed & Breakfast
    • Eco Hostel
    • Yurts
    • Camping
    • Large Groups
    • Gift Vouchers
    • Things to Do >
      • Walking and Cycling Breaks
    • Booking Enquiries
    • Accommodation Terms and Conditions
    • Accommodation COVID Information
  • Children's Activities
    • Wood Mouse Forest School
    • Family Holiday Activities >
      • Family Day Time Activities
      • Family Overnight Adventures
      • Advanced Wilderness Skills
  • Schools
    • Our Education Ethos
    • Earth Protectors Conference
    • Day Trips
    • Residentials
    • Farm Tours
    • Saxon Experience
    • Forest School
    • Alternative Education >
      • Young Natural Ambassadors
    • We Can Come to Your School
    • Colleges and Universities
    • Training for Teachers
    • Meet the Team
    • Useful Information & Booking Forms
    • Contact the Education Team
  • Burial Site
    • South Downs Natural Burial Site
    • Funeral Charges
    • Information Pack
    • Flowers and Planting
    • Attending A Funeral
    • Legacies and Gifts
    • Donations
  • Our Future
    • Ready Steady Grow
    • New Learning Centre
    • South Downs Eco Lodge
  • Support Us
    • Cast Off
    • Friends >
      • Become a Friend
      • Friends Field
    • Business >
      • Business Friends
    • Leaves For Learning Appeal >
      • Fundraise for us
      • Hedgehog Eco Challenge
    • Gifts & Donations
    • Donation Form
    • Become a Volunteer
    • Leave a Legacy
    • Thank You to Our Supporters
  • Projects
    • Beekeepers
    • Chalk Grassland
    • Compost Toilet
    • Forest Gardening
    • Herb Garden
    • Permaculture
    • Straw Bale Solar Powered Showers
    • Solar Projects
    • South Downs Eco Lodge
    • Woodland Hall
    • Tree Bog
    • Wetherdown Lodge
    • Yurts
  • Eco Blog
    • Art & Craft
    • Grow Now
    • Health
    • On The Wild Side
    • Meditation
    • Painting as Meditation
    • Weave From The Hedges
    • Young People
  • Shop and Bookings
    • Gift Vouchers
    • Online T Shirt Shop
    • Online Eco Shop
    • Shop At The Centre