Figure 3. Boundary Bund and Drainage System .: :i; ' ''.: ~ :: ";: ":::- -.. -' :': ' : : :.~ :I.tir .. .i :.: ~.,::::::::::' '.'' i: .i- _rj: I 1: r ;::: ;il : iai; j-? ~ ii- I: i' 'i i&*dkdd.Vlwn The top panel shows boundary bunds in hilly, stony, red soil areas. Stones are cleared from the field to build bunds. Excess runoff drains through the stone bunds. The middle panel displays earthen boundary bunds with field-to-field runoff disposal through stone waste weirs. These are found in medium to high rainfall red soil areas and low to medium black soil areas. In the bottom panel, high rainfall conditions require that excess water be drained through boundary waterways, which eventually lead to natural streams. 8 GATEKEEPER SERIES NO. SA34 .::'::li. ""'''~ ~ ''"'~'' "' "' " ::': '' ''~~" . ..:. . 1: : :r, " .. .~... . : '' . ... : I'~.. - :::;r : ': - : ''.''' .. ....1M..... ...'.- ':~L'1'' '