pōhutukawaMetrosideros excelsalarge tree 25m++ ++Avoid planting on outer most edge of unstable banks. So if you are suffering from erosion on your land considering tree planting as a eco-friendly … Green life has been proven to improve people’s health from an emotional and physical aspect, keep our cities cooler, and reduce pollution. Native versus exotic plants for erosion control and prevention. This creates an environment that is hostile for long-term survival. endstream endobj 887 0 obj<>/Size 867/Type/XRef>>stream 80% of our trees, ferns and flowering plants are endemic (found only in New Zealand). View many of the NZ Native Species onsite, at different stages of growth in our own re-vegetation projects. 0000001251 00000 n X��V�'ϋ`I���Գ* �;u}��kL�9�9�]�&=�̂q�y�l�z�$�B€���혴Ӝ��u����[����+0Q��vj��,̓�k���b[w[Q�G����^h�Ik�dҦ�*���ޘ_�A�%t5,�0z���[,�3����r�ıc�s؍B�וֹ�qx�4�.G�;������ѥm����k1�MѮ����N����fV���\�x�۞K��u>�$2^C���Ȉ��(7����o� Tanika Lomandra is one of the best erosion control plants for slopes. %PDF-1.4 %���� Plant roots are important soil binders on coastal cliffs. Rotorua: NZ Forest Research Institute. Compared to turf, silt fences and coir logs were shown to be ineffective in silt removal, sediment reduction and as an erosion control measure. Other highly effective erosion control plants include those with highly fibrous roots systems that bind the soil, such as native New Zealand grasses and Dianella. WILLOWS. When it comes to plants, many of the native New Zealand species lack strong underground growth. Generally primary colanisers are used in conjunction with specimen plants. Revegetation efforts have focussed predominantly on the native plants pingao (a sedge), spinifex (a grass), and sand tussock, as well as the introduced marram grass (Douglas & Gainsford 2002; Unsworth et al. Van Kraayenoord, C. W. S., Slui, B., & Knowles, F. B. Using Lomandra in bio-filtration systems has shown that they are effective filters of nutrients and particularly good at the removal of heavy metals in all seasons. Moderate tolerance to salt and wind. Trees. 0000007443 00000 n trailer Poplars and Willows as Fodder (pdf, 380 KB) Plant availability and assistance. <]>> %%EOF MapouMyrsine australis. Jute mesh (with holes) allows water to pass through to the ground below, and lets the plants thrive. The sterile types from Australia are a good choice as they are totally safe. So be sure to use jute mesh that lets water through easily. 0000001914 00000 n Breeze Dianella fills in gaps, and has a very strong root system for erosion control. Vetiver offers solutions to erosion due to flooding, slips and poor drainage. Erosion Control - Soil series videos Good Water-Wise Plants for Erosion Control and Wildlife Australian Varieties: Grevellia: Many varieties; Phormium: New Zealand Flax; Westringia: Coast rosemary; Callistemon "Little John:" Dwarf bottlebrush; California Natives: Quercus chrysolepis: Canyon live oak; Aesculus californica: California buckeye; … A typical seed mix for northern regions may include Manuka, Kanuka, Karamu, Mapau, Mahoe, Maire, Kauri, Akipirau and Tarire depending on … National Soil and Water Conservation Authority. A practical guide for landowners. Public Event, Auckland, Unispace survey explores client needs in workplaces of the future, Practice in Profile: Awaiting the chisel of the mind, Editorial: Chris Barton on post-COVID environmentalism. Native grasses and Carex are better performers, although they still brown off in summer and are dormant for much of the year. 0000005836 00000 n x�b```b``y�������A��b�, L .�X�Şϑ�v�}� {G �{�'l��9�_��b`hM��Кu�r�(͖�}ɷXVmiI�9dq���-Sh��2�cM��vN7U�%0��T�P�sa ��B+`����:� f����1'ܥ/�(��T;L���D��Vu�39W��2­h��rgǷC 0000001449 00000 n (1995) FRI Bulletin No.124, part 15. 867 0 obj <> endobj Both Nootka rose and peafruit or wild swamp rose are excellent choices. Other highly effective erosion control plants include those with highly fibrous roots systems that bind the soil, such as native New Zealand grasses and Dianella. Our products are used in Conservation, Wetland Restoration, Water Quality Basins, and Natural Landscaping. The team have prepared a 50m horizontal section with a combination of erosion control products and suitable plants, including the New Zealand ice plant, pig fern, bracken fern, cutty grass, Banks Peninsula fescue, and silver tussock. Evergreen Baby, a low-growing Lomandra, can cope with very wet feet, and is ideal for bio-retention swales. Willows are characteristically associated with sites that are subject to some form of physical disturbance; for example, river flood plains, gravel outwash plains, glacial moraines and sites of human disturbance (Argus 1973). Use an appropriate runoff control such as a diversion bank, a cut-off drain or a detention dam (see Sustainable Options SC09/98 Runoff Management on Pastures, and SC10/98 Detention Dams). `� Different root structures can work together to help stabilise cliffs. Marden, Rowan, Phillips (in press) Czernin (2002) Common name Botanical name. Green life can be the answer to most erosion control problems, so let’s embrace it. Growing a timber crop in association with farming has many benefits, not only financial. Flaxes and other native grasses can be ideal for this purpose; the strong root system holds the bank together, there is no risk of them blowing over due to their size. Low natives such as sedges and rushes will survive flooding on the lower banks and help reduce soil being washed away. Turf and Tanika Lomandra combine to make an effective swale, cleaning run off water efficiently. Both can have their merits and limitations when it comes to erosion control. Requires some protection when young. Breeze Dianella fills in gaps, and has a very strong root system for erosion control. native timber, exotic hardwoods or softwoods such as Pinus radiata are required to fill the gap. Although some research showed Carex and grasses can be better when actively growing and young, the study also found that, when mature, Carex was no better than Lomandra for removal of heavy metals and nutrients. Other appropriate deciduous shrubs include: Saskatoon serviceberry, snowberry, oceanspray, Pacific ninebark and red-flowering currant. Plant breeder Todd Layt examines the efficacy of various plants and grasses for erosion control and gives practical advice on how best to incorporate the preferred species into any project. Native plants … Lead, in particular, was taken into the roots at a high rate and at a good rate into the leaves. 0000001757 00000 n Plant erosion control trees such as hybrid willow species or poplars. NEW ZEALAND’S MOST KNOWLEDGEABLE EROSION MANAGEMENT SPECIALIST At Erosion Control we offer sound and practical advice on any re-vegetation or erosion protection project, whether it is a sub-division, roading project, stream restoration, mine site or golf course. �U�',: ��$em�ۮ�}�E3�%��B��V��.ҽŠlv+j�T�3A�*n%Z����k0]#�O�&d���`ɰƚ�Z�y�]e�o�l�=�o�Op�x��,�G,�(x� ԆU�l�}DES�qX��6t�l2�)�� �A؄n1̙f�w�����zP�p��F����&��=C���&g���7�xh����������I�M�����Q�lj����&3w��_���@_���S�c%���-AȚB7������JZ��1kѻ�0w��*�. 2003). If temporary erosion control is needed until these plants establish, an organic mesh is often used. Innovative methods, and a vast array of vegetative enhancements, make plants and turf grass highly efficient erosion control solutions. Copyright © 2020 AGM A Division of BCI New Zealand. native, that can be used to replace these weeds in your garden. The most common solution is to plant ground covers, but that’s a long-term and often expensive cover-up. Surface water controls may be required to divert water from critical areas. Look for the kiwi – NZ’s iconic bird – it is used to mark native alternatives. Nafray® Pennisetum alopecuroides ‘PA300’ PBR This paper outlines what we know about the use of New Zealand's native plants for erosion and sediment control. 0000003588 00000 n Karamu Coprosma robusta. The native plant -covered slopes also stayed drier in winter. Plants or turf combine well with 3D geotextile products to provide long-term erosion protection. Runoff Control On soil erosion sites, runoff should be diverted to remove the cause of soil movement and further erosion. Enter evergreen Lomandra – which has been shown in research to strengthen the soil 200% to 300%. Extensive research has gone into looking at the best available plant options to help … It had been used for centuries in India, for decades around the world and with thousands of successful plantings over the last 15 years in New Zealand. Weedy or grass cover slopes get very wet very fast and either shed water or slide mud. Evergreen Baby Lomandra is not only drought tolerant, but very wet-feet tolerant, allowing it to be used in bio-retention swales. Vol 3 Native Plants. 888 0 obj<>stream 0000003826 00000 n For more aggressively eroding or erodible sites trees such as Radiata Pine, Eucalyptus, Manuka and Douglas fir are used. Further, Carex and grasses have long periods of dormancy and poor nutrient soaking, while Lomandra grows all year making it a better choice. 0000000016 00000 n Harvesting of poplars is carried out during the months of May, June, July. KohuhuPittosporum tenuifolium. In other research, Lomandra performed better than shrubs and most other plants at absorbing cadmium, copper and lead, and was effective at absorbing zinc. Lacebark Hoheria populnea. … You will shortly receive an email asking you to confirm your subscription. In both Erosion Control magazine and our sister publication Stormwater, we’ve covered many different types of invasive species—plant and animal—and the ways people have attempted to get rid of them.In the early years of the 20 th century, for example, it briefly seemed like a good idea to release nutria (very large rodents) throughout the southeastern US to devour the non-native … 0000007196 00000 n We have previously written a blog on planting native trees which you might find useful to reference in combination with … 0000000751 00000 n These plants can work together to help slow erosion. Grass covered slopes lead to hillside erosion and possible landslides. When choosing your plants options may be for exotics or natives.