Page 142 - Shaping A Sustainable Future
P. 142

Island  Landscape  Nursery  has  provided  estimates  of   A  small  nursery  area  nurtures  and  maintains  outdoor
            approximately  20,000  plastic  potting  bags  used  to   potted  soil  plants  that  are  not  suitable  for  the
            transport  plants,  as  shown  in  Figure  10.  These  bags   Hydroculture  system,  as  shown  in  Figure  12.  These
            weigh about 100g each and translate to roughly 2,000   plants require regular watering, unlike those planted in
            kg of plastic waste. At an estimated rate of 6 kg CO  per   expanded clay.
                                                          2
            kg of plastic, this translates to 12,000 kg of CO emission
                                                     2
            annually.  Plastic  potting  bags  being  disposed  of  after
            use are as shown in Figure 9.















                                                                            Figure 11: Water collection pond.

                         Figure 10: Plastic potting bags
                         for planting and transporting.

            Good Environmental Practices

            One  of  the  most  commendable  good  environmental
            practices of Island Landscape Nursery is the capture of
            rainwater and its subsequent use for watering plants.
            Island Landscape Nursery has indicated that its drainage
            network can capture rainwater, which is then channelled
            to the collection pond, as shown in Figure 11.


            This  water  is  mixed  with  the  fertilizer  and  pesticides
            before  being  pumped  to  the  rooting  acclimatization
            pools. The nutrient-enriched water is level-controlled at   Figure 12: Potted Soil Plants not suitable for
            each pool, and the run-off drains through the drainage     Hydroculture.
            system around the nursery and back into the collection
            pond.  This  water  flow  cycle  is  continuously  operated
            to  prevent  stagnant  water  accumulation  using  an
            electrically driven pump & filtration system.

                                                              140
   137   138   139   140   141   142   143   144   145   146   147