The Underground

  • Improving The Lot Of The Urban Tree
    by Simon Leake on November 20, 2019 at 11:00 pm

    Urban trees bring much needed softness and greenery to the lives of city dwellers. They also help remove CO2, generate oxygen and provide habitat for wildlife, making cities more interesting to live in than concrete wind tunnels.

  • Green Walls And Green Roofs In Australia
    by Simon Leake on November 20, 2019 at 5:00 am

    Photo: Tatiana Maia

  • Reducing CO2 Through Carbon Sequestration
    by Simon Leake on November 19, 2019 at 11:00 pm

    Lowering carbon dioxide due to human activity is a big topic at the moment. Under the Kyoto protocol, various strategies have been proposed to reduce the amount of carbon dioxide (CO2) in the atmosphere. Many focus on reducing our output, such as by moving from coal-fired power stations to solar energy, and replacing oil with biomass. Others focus on removing the CO2 that is already in the air, such as by reafforestation on a huge scale. This removal from circulation is called sequestration.

  • Save On Turf Fertiliser Costs
    by Simon Leake on November 19, 2019 at 5:00 am

    How much fertiliser are you applying to your turf each year, and what is it costing you? You might be surprised to know that it’s possible to reduce fertiliser application and still get top results. The details depend on your exact situation (soil type and depth, rainfall and irrigation, temperatures, time since establishment), so get your soil and turf tested before you make any radical changes to your fertiliser management, but several general principles are relevant.

  • Structural Soil For Urban Tree Planting
    by Simon Leake on November 18, 2019 at 11:00 pm

    As citizens we demand both good roads and paths and a pleasant environment. Road engineers can give us excellent surfaces at the expense of greenery. Landscape designers can give us a green environment at the expense of surface integrity. For decades, this mismatch has resulted in an urban environment characterised by stunted trees and lifted pavements.