Botanic Garden Losing Collections to Drought
28 August 2007
A severe drought and the lack of summer rain last year following the driest winter since 1940 has caused the deaths.
"There has been a high death rate in quite old trees," said Dr Dixon. "They include sheoaks, banksias and some eucalypts - some are more than 30 years old.
"It is coincident with the very dry season last year and little summer rain followed by drought conditions this year."
It was of great concern but there was little the authority could do, he added.
The last time there were such sudden tree deaths in the park was 15 years ago.
"There was a sudden death in a range of species but that was attributable to a cold snap early in that year," Dr Dixon said.
"The chances are what we are seeing [now] may have happened in prehistoric or pre-human times, we just don't know."
Watering the natives is simply not feasible, Dr Dixon said.
"It's certainly a big wake-up call but we are not sure what our response can be or should be," he said.
Bureau of Meteorology information officer Nick Holcz said 285.8mm of rain had fallen this year, compared to the normal average of 552mm.
Last year was the driest year since 1940, Mr Holcz said.
Bushland managers were empathising with farmers in WA's wheatbelt who are still desparately hoping for rain.
"Bushland managers have now become weather watchers... we can understand how many farmers feel," Dr Dixon concluded.
Climate Change and Plant Conservation
Climate change is already happening and is predicted to get much worse. This page outlines the effects that climate change may have on plant communities, and thus the threats to the well-being of human societies that depend on them.
2 December 2013
21 October 2013
18 October 2013
15 October 2013
11 October 2013
Australia - Western Australia - West Perth
Rain Gardens: Sustainable Rainwater Management for the Garden and Designed Landscape
Filled with practical, manageable solutions for small and large-scale managed landscapes, and based on authorative research with case studies from all over the world, "Rain Gardens" is the first book on sustainable water management schemes suitable for students and professionals.
BigGive - Donate to BGCI
The BGCI BigGive Christmas Challenge will double your donation to our Tree Conservation and Forest Restoration project in Africa