Removal of The Colora River Bank

Vegetation and riverbank functions on the banks of South Africa have been threatened by human activities such as mining along the river and agriculture. The deterioration of these vegetation and the collapse or removal of riverbanks have a broad and long-term impact on the river environment (Zainudin et al., 2013). Initiatives such as the Water Resources Work (WfW) accepted the challenge of positively restoring degraded and disturbed river environments to restore water quality and availability in the watershed in South Africa (Palmer et al.

There are four major processes for river erosion, including hydrology, corrosion, wear, and solution. Hydraulic action is the removal and removal of rocks from river beds and river banks by the forces of running water. Corrosion or wear is to shave off riverbeds and river banks by rocks carried by rivers. This behavior expanded and deepened the river. Wear is the collision of rock fragments in the water. During this process the rock becomes smaller and more rounded as the sharp edge is grounded. Over time the rock turns into coarse silt, clay and other deposits. This solution is a process in which river water reacts chemically with soluble minerals in rocks and dissolves them. For example, when a river flows through a limestone area it dissolves the limestone and dissolves the limestone by reacting chemically with the limestone.

Most banks in the river own private possession. This is one of the main pressures on the Hawkesbury River. This land along the banks of the river changes the shape of the river bank, throws pollutants into the river, and incorporates alien species, especially weeds, directly affecting the canal. A coastal regional management plan (CZMP) was formulated to better manage all the pressures on rivers. Extensive consultation with the landlord and major river users was done as part of CZMP preparatory work. CZMP also explains in detail the erosion built along the river and some of the structures (pier and breakwater etc.) and weed infestation, especially Arundo donax, huge weeds.