In order to prevent the washout
of existing soil, erosion control mat will be laid to protect the
surface for slope with gradient greater than 35o as well as to minimize
the raindrop impact.
However, it is found that in many cases, grass could not grow well
because those commonly used erosion control mat is too thick for
the stolon (secondary horizontal root) of creeping plant to pass
through the mat and to develop the secondary generation.Therefore,
stolon can just only grow on the surface of the mat without re-anchoring
the soil surface to receive adequate nutrient.
After a period of time, the grass will wilt because of insufficient
nutrient to support the growth only provided by the primary shoot.Under
this situation, re-hydroseeding is not a significant method to tackle
this problem because the seeds by re-hydroseeding still cannot get
through the mat and grow underplaying.Thus, Planter Tube System
is introduced to solve the problem.