The Society is concerned about the Council’s promises of replanting a Forest based on its recent past performance in the area when removing pine trees.
It is more than 5 years since pine trees were removed by the Western Springs Stadium Wall by the Bullock track. When you visit this walking track area you can see replanting has taken place yet the area is covered in weeds: kikuyu, gorse and wattle weed. It is nowhere near the level of beautiful native bush understory that we already have in the Western Springs Forest, which be destroyed if the pine trees are removed.
The Council seem to have given up on weed management here and is relying on community group efforts (Forest & Bird volunteers have spent several weekends there trying to reduce the level of weed infestation). If this is the level of maintenance that we can expect for Western Springs Forest, it is likely to become a weed wonderland for decades until native regeneration closes the canopy, just as it has done already in the bush that is there now.
And this is despite the fact that it is an area that should have been easy to replant – it has good access, had all of the pine logs removed rather than left on the ground, and had very little weed cover to begin with.
The planting they have done seems to be for a landscaped garden rather than to replace native bush. Why do they keep planning cabbage trees which are a swamp tree on a hillside? The existing understorey of the WSF is rich and diverse and suited to its environment. It is not possible to destroy a naturally regenerated forest and then replant it like a native tree garden and say it will be the same Forest.
Then we go to the pine trees that were removed from the alongside the fence on the Zoo side of the forest, over 13 years ago. On the Forest side of the fence the ground is almost impassable, strewn with felled trunks and high fire risk ‘eco-piles’ of smashed branches.
Mile-a-minute and woolly nightshade are doing exceptionally well in these areas now that the pine canopy is gone and they have plenty of light. The extensive ground cover provided by the large number of simultaneously felled trunks is no barrier to weed species but does make their control much more difficult to carry out and makes replanting almost impossible. Mile-a-minute is on the nationwide biosecurity watch list as it smothers and kills most plants from ground level to medium canopy and prevents the establishment of native plant seedlings.
On the Zoo side of the fence there has been some native planting, but it is mostly a wasteland of kikuyu, with thriving clumps of bamboo and gorse. Hardly the “special urban native bush experience” the council touts as its vision for the Western Springs Forest (“Pine stand to go native“, 2018, ourauckland.aucklandcouncil.govt.nz/articles/news/2018/4/western-springs-pines/ )
These two case studies – over 5 years ago and then 13 years ago show why the Society is so concerned for the pristine transitioning native understorey that remains. The community is being promised a “special urban native bush experience in Western Springs” but the photos show the opposite will happen. Our already special urban native forest will be destroyed and if we look at the past experiences of Auckland Council on this site, we will be left with weeds and no native forest. Or it could all just slide down the de-stabilised slope and into the creek.