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Annual Report 2010-2011 (PDF - 2.47 mb) - Royal Botanic Gardens ...

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Contents<br />

OUR achievements – Strategic Priority 3C<br />

Key Performance Measures: Strategic Priority 3c<br />

Specific Outcome Measure Result<br />

* Above-average<br />

rainfall occurred<br />

just after required<br />

irrigation was<br />

applied, resulting<br />

in difficulty meeting<br />

peak irrigation<br />

efficiency.<br />

61 (Strategic Water<br />

Plan)<br />

At RBG Melbourne, compliance with all<br />

water management targets including:<br />

– Co<strong>mb</strong>ined annual aggregate of<br />

rainfall/irrigation less than 900 mm<br />

– <strong>Annual</strong> water use less than 90 litres<br />

(L)/visitor<br />

– Irrigation Index equal to or less than 1<br />

At RBG Cranbourne:<br />

– the first phase of the review of front<br />

entrance plantings completed and<br />

converted to non-irrigated landscape<br />

using ornamental native/indigenous<br />

plants<br />

– installation of an automated weather<br />

station linked to irrigation scheduling,<br />

including staff training and monitoring<br />

RBG Melbourne continued to strive to<br />

meet water management compliance<br />

targets, as outlined below:<br />

– <strong>Annual</strong> rainfall/irrigation aggregate was<br />

1,090 mm, exceeding the original target;<br />

conversely, only 40ML was used for<br />

irrigation compared with 120ML for<br />

2009–10<br />

– Total <strong>Annual</strong> Water Use Visitation Index<br />

was estimated at 32 litres/visitor/annum<br />

– Irrigation Index was 1.03 or 3 per cent*<br />

over estimated requirement.<br />

At RBG Cranbourne, the following water<br />

managements initiatives were<br />

implemented:<br />

– 4,000 Banksia blechnifolia and 800<br />

Lomandra longifolia were planted at the<br />

front entrance in Nove<strong>mb</strong>er <strong>2010</strong>, with<br />

the entire area re-mulched post planting<br />

– an automated weather station was<br />

purchased; installation is pending<br />

handover of the relevant Australian<br />

Garden Stage 2 precinct.<br />

<strong>Royal</strong> <strong>Botanic</strong> <strong>Gardens</strong> Board Victoria <strong>Annual</strong> <strong>Report</strong> <strong>2010</strong>–11 page 109

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