Category Archives: Erosion Control Research

Using Turf for Erosion Control

Turf has proven to be the safest and most reliable method of achieving full green life coverage on erodible surfaces, one barrier in using turf was the maintenance costs, but not anymore, enter the Zoysia revolution…

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Top 10 Erosion Control Plants for Victoria

These plants were selected based on research from the University of Western Sydney and a USA Texas study. See http://www.ozbreed.com.au/plant-turf-research.html for more information, including the full paper.

Katrinus Deluxe LomandraKing Alfred® Dianella caerulea ‘JOHN316’ PBR Dense, compact blue- green foliage

Nafray® Pennisetum alopecuroides ‘PA300PBR
Compact, clumping native grass

 

Katrinus Deluxe Lomandra longifolia ‘Katrinus Deluxe’ PBR
Improved semi- compact fine leaf form

Nyalla® Lomandra longifolia ‘LM400’ PBR
Semi-compact blue- grey fine leaf

Breeze® Dianella caerulea ‘DCNC0’ PBR
‘No cane’ Dianella caerulea

Katie BellesTM Lomandra hystrix ‘LHBYF’ PBR
Full sized Lomandra hystrix; mass flowering

SharaTM Lomandra fluviatilis ‘ABU7’ PBR
Fine leaf, compact; part wet or dry

Southern CascadeTM Lomandra hystrix ‘LHWP’ PBR
Lomandra hystrix with weeping foliage

 LuciaTM Dianella caerulea ‘DC101’ PBR
Low growing, spreading Dianella

Tanika® Lomandra longifolia ‘LM300’ PBR
Improved, compact, fine leaf form

Top 10 Erosion Control Plants for NSW

From the research paper Quantifying the Strengthening of Soil By Commonly Used Landscape Plants. See http://www.ozbreed.com.au/plant-turf-research.html for more information, including the full paper.

Katrinus Deluxe

 

 

 

 

 

 

 

 

 

Nafray® Pennisetum alopecuroides ‘PA300PBR
Compact, clumping native grass

Katrinus Deluxe Lomandra longifolia ‘Katrinus Deluxe’ PBR
Improved semi- compact fine leaf form

Nyalla® Lomandra longifolia ‘LM400’ PBR
Fine leaf, compact; partially wet or dry

Breeze® Dianella caerulea ‘DCNC0’ PBR
‘No cane’ Dianella caerulea

Katie BellesTM Lomandra hystrix ‘LHBYF’ PBR
Semi-compact blue- grey fine leaf

SharaTM Lomandra fluviatilis ‘ABU7’ PBR
Full sized Lomandra hystrix; mass flowering

Tropic CascadeTM Lomandra hystrix ‘LHWP’ PBR
Lomandra hystrix with weeping foliage

LuciaTM Dianella caerulea ‘DC101’ PBR
Low growing, spreading Dianella

Tanika® Lomandra longifolia ‘LM300’ PBR
Improved, compact, fine leaf form

YalbaTM Imperata cylindrica ‘ICL200’ PBR
Fast spread, masses of feathery plumes

Biodegradable Staples Holding Capacity for Nara™ Native Turf Compared to Couch

Biodegradable Staples Holding Capacity for Nara™ Native   Turf Compared to Couch

Nara Native Turf Best For Erosion Control

Introduction

Turf in recent research has proven to be one of the best erosion control products, testing far better than silt fences, coir logs and erosion socks for both erosion and silt containment. Established turf by itself can easily handle 1.5 metres per second flows. Well established turf has been shown to handle flows of 2.5 to 3 metres per second.

The biggest problem with using turf in flow areas is that until establishment, it can shear away. Traditionally this was solved by using turf combined with netting and pegs, or turf secured with wire pegs. Both netting and wire pegs can be dangerous hazards to foot traffic, and they are both expensive methods. New E-Staple biodegradable pegs, which have been designed to grip into the ground are proving to be far superior, lower cost and safer.

Tests in the USA showed that the 150mm E-Staple took 12 times the force to remove compared to a round top 150mm steel staple, and more than 4 times that of regular 150mm steel staples.

Testing method

Now that there are such strong biodegradable staples, it was decided to test which would fail first, the staple or the turf. It was also decided to test what force is require to pull 6 x 150mm and in another test 6 x 100mm staples from the ground, pegged through Nara™ Native Turf and regular Wintergreen Couch turf.

All rolls were of good quality. A bamboo stake was secured to wire, and a weighing device attached. 10 separate measurements were taken for…read more

 

 

 

 

 

 

 

Erosion Control Methods – Turf is Tops

Erosion Control Methods – Turf is Tops 

Turf For Erosion Control

 

Research in Queensland is demonstrating how turf grass is an effective means of controlling and minimizing erosion. Turf grass is capable of reducing erosion by protecting the ground from the impact of rainfall. It also reduces the speed of runoff water, holds soil and sediment particles in place and enhances the ground’s ability to absorb water.

Turf is proving an effective means of erosion control on batters of a gradient less that 33.3 percent and stabilizing areas of concentrated flows such as channels and drains, provided the flow velocities do not exceed 1.5 m/s. If flows are higher, combining turf with geotextiles seems to be a well proven concept.

There have been studies showing turf and geotextile combinations once established can withstand up to 5.5 m/s depending on the geotextile.  With the invention of fast stapling devices it is now easy to secure turf in place. These devices are readily available in the USA, and are now becoming available in Australia.  Current research is investigating various methods of using these staples to secure turf both in small and big rolls.

Turf employed skillfully and/or in combination with other mitigation technologies can…read more