Aquaculture Engineering

Construction of ponds - Land clearing

Unit 5- Construction of Fish ponds

Construction of ponds

Land clearing
The site is to be cleared off from big boulders stones, trees, bushes etc,. The land is to be made levelled, if there is steep slope or broken surface. There are three types of land clearing methods based on the density of vegetation, and mode of removal of materials from the site where an aqua form is to be constructed.

Manual clearing
If there are only small boulders and thin vegetation like small bushes or trees, then by engaging labours the site can be cleared off. Clearing the site by engaging labour is called as manual clearing. It is require more time. The cost of work is generally less.

Mechanical clearing
Clearing of the site by engaging machines is called as mechanical clearing. It is help full if the site consists of large boulders and thick vegetation like large bushes and trees. It require less time, generally cost will be more.

Chemical clearing
If the soil at the site, contains harmful bacteria or any other micro-organisms which are harmful to aquatic animals, then some sort of chemicals are mixed in the soil to kill these harmful bacteria and this method of using the chemicals to kill these bacteria is called as chemical method of land clearing. Chemicals are used to eradicate unnecessary aquatic weeds also.