What are the intervention measures used to controll runoff?

Question

Its the runn off from the agricultural field in relation to river pollution

Answer 1

The control measure depends upon the type and amount of runoff. For example, if the runoff is just from agricultural field, vegetation or diversion channel may help but if it is related to streams and rivers, dams and rock-lined channels are needed. Anyway, in general, some of the measures are:

1. Outlet protection

2. Diversion dikes and swales

3. Temporary slope drains

4. Rock-lined channels

5. Check dams

6. Grass-lined channels

7. Temporary stream crossings

Answer 2

preventing river bank erosion by stock or machinery

hedges and ditches

contour plowing

winter crops

Answer 3

Basically prevent fast flow of rainwater to a stream.  Design level areas which "flood" and soak in.  Change steep slopes to stepped terracing for the same reasons.  Allow water to collect in places and be stored temporarily which then drains off slowly after the rain event.