Methods for soil and water conservation
? Grass strips/filter strips – 1-2 meters wide along the contour at intervals of 30metre reduce the speed of flowing water and
filter out soil
? Cover cropping – prevent movement of soil and impact of the rain drops.
? Contour farming – created ridges of earth which hold up water reducing water-run-off.
? Mulching – prevents splash erosion/reduces speed of surface run-off increasing infiltration/reduces evaporation/increases
water retention capacity
? Cropping system/rotational grazing/crop rotation improve soil structure increasing water infiltration to reduce volume o f
surface run-off
? Intercroping – provides adequate ground cover to reduce impact of rain drops
? Strip cropping – different strips filter out soil particles and reduce surface run-off.
? Grassed/vegetated water ways slow the speed of water and traps eroded soil particles.
? Afforestation and reaforestation – protects soil from raindrops/provides shade reducing evaporation/act as wind breaks, binds
soil reducing erodability.
? Agroforesty – provides wind breaks/improves infiltration/reduces speed of water/improves infiltration
john3 answered the question on December 18, 2017 at 04:52
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