effects of polyacrylamide on soil erosion and nutrient losses

effects of polyacrylamide on soil erosion and nutrient losses
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  • Does polyacrylamide increase the rate of erosion?
  • Samples were subjected to artificial rainfall for 12 h after being placed at a 10° angle to increase the rate of erosion. Results prove that the surface runoff and the weight loss of soil decrease with the increase of polyacrylamide concentration.
  • How does polyacrylamide protect soil?
  • Within this perspective, polyacrylamide (PAM) is one of the polymers that used to protect the soil by covering it with a layer of water-soluble polymer. This polymer controls the soil erosion by collecting the soil particles and preventing them from drifting under critical weather conditions such as heavy rain and torrents.
  • Does polyacrylamide reduce soil erosion in furrow irrigation?
  • Research results indicated that PAM application decreased soil erosion in furrow irrigation significantly (Trout et al., 1995 ). Polyacrylamide treatments showed the greatest infiltration improvement and erosion reduction compared with the controls.
  • Do polyacrylamide treatments increase water-stable aggregates content?
  • Polyacrylamide treatments increased water-stable aggregates content by 32.3% to 59.1% in all experiment groups relative to the control group.