Every time it rains, stormwater runoff from developed areas creates problems. Our modern cities are engineered to funnel rainwater from the land as fast as possible into storm sewers were it then goes, untreated, into nearby creeks and streams.
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Because gardens are often so water-intensive, it is important to look at the principles of water-wise gardening. Water-wise gardens are also lower maintenance than normal gardens. The following tips are taken from Water-wise gardening (Department of Water Affairs and Forestry and National Botanical Institute, 1998).
RAIN GARDENS: They will ease strain on the municipal sewer system and keep pollutants out of lakes, streams Rain gardens can be an attractive and effective way to reduce storm-water runoff from your roof, driveway and other surfaces in your yard.
Vital river systems in developing countries face unsustainable rise in water consumption Seven of the world’s 10 most populated regions face such severe water shortages over the next three decades that they threaten to derail the growth which hundreds of millions of people in the developing world are banking on to lift them out of […]
Rain Garden Installation Guide Raingardens are a great way to utilise rainwater from your rooftop and reduce stormwater runoff. Rainwater can also be directly harvested into water tanks for use as garden irrigation water or for domestic use. To see what types of rainwater tanks and water tanks are available in South Africa, see below.
The types and sizes of water tanks used for rainwater harvesting vary around the world and some have very interesting innovations.
Studies estimate that 1 square metre of grassed rooftop can remove up to 2kg of polluted particles from the air every year, depending on the foliage type. By definition a green roof can be: A layer of living vegetation that is installed on the top of a conventional flat or sloping roof; An extension of […]
Offering respite from the urban jungle along with a host of unseen building benefits, green rooftops are now a rapidly growing trend. Half of humanity now live in cities. In the developing world some 3 million people move into cities every week. This new urban age is faced with many overlapping challenges. The demand for […]
There are two main reasons why using synthetic chemicals on your garden should be a no-no. Firstly, unless you get the balance absolutely perfect, the reality is that a large portion of the synthetic fertilisers you add to your garden will not be absorbed by the plants, but rather washed from the soil into the […]
- Fear of a dry future for Cape Town June 27, 2018
- What is Raw Water, and is it healthy? January 7, 2018
- Rainwater Harvesting Calculator – South Africa December 29, 2017
- Lowveld Dam Levels – Watch out for the 2017/2018 dry season March 29, 2017
- Climate Watch for South Africa March 29, 2017
- Washing Machine Water Efficiency March 26, 2011
- Don’t Let your Swimming Pool Backwash Water Damage the Environment May 11, 2010
- The Use of Wind Turbines vs Solar Power in South Africa May 8, 2010
- The FIFA World Cup’s Carbon Impact June 4, 2010
- What is a Natural Swimming Pool? May 6, 2010