51.7.1. Desilting and de-weeding of open drains

Try these first

1. 1.

   What is desilting?

   Hint

   Think about what builds up in the bottom of a drain.

2. 2.

   Why is de-weeding necessary?

   Hint

   Consider what happens to a weed-filled drain.

3. 3.

   What is the purpose of desilting drains?

   • To improve water flow
   • To plant new crops
   • To increase silt deposit

   Hint

   Think about what happens when drains are clogged.

4. 4.

   Regular de-weeding is necessary to prevent what?

   • True
   • False

   Hint

   Consider what grows in the drains.

5. 5.

   Create a detailed management plan for desilting and de-weeding a drainage system in a rural community, considering seasonal changes and local environmental conditions.

   Hint

   Think about how environmental factors might affect your schedule.

6. 6.

   Discuss the potential long-term effects of not maintaining drainage systems on local ecosystems and agriculture.

   Hint

   Consider how interconnected these systems are.