New life on Murray floodplains

Six weeks on from the recent flood in the South Australian Murray Valley, floodplains and wetlands are in the best condition seen since the floods of 1990-93. The dominant response is vibrant, vigorous growth of groundcovers, shrubs and trees.

A series of events have contributed to the current good condition of floodplain vegetation communities. The 2010-12 floods relieved the extreme stress of the Millenium drought, when millions of mature river red gums and black box trees were stressed, dying or dead.

The 2016 flood came in the nick of time, to prevent the decline of germinated seedlings and recovering canopies following the 2010-12 floods.

Rainfall played a part too, with good summer rains in 2012, 2014 and 2015, and extraordinary rains in September 2016 that were four times the average volume. With so much available moisture, all plants are concentrating on new growth, with fresh luminous green leaves showing strong recovery on eucalypts. Vigorous vertical lignum stems are bending under their own weight in the process of creating dense tangled lignum thickets.


About redgumgirl

Dr Anne Jensen is an environmental consultant with a passionate interest in sustainable management of our natural resources, particularly the River Murray and wetland environments. She is particularly interested in using photographs and stories to explain issues around water and protecting natural ecosystems in terms that are understood by the wider community, so that we can manage our environment sustainably for our common future.
This entry was posted in black box, caring for our planet, environmental flows, eucalypts, floods, Murray-Darling Basin, native vegetation, rainfall, regeneration, river red gums, sustainable natural resources management, waterways and tagged , , , , , . Bookmark the permalink.