Has an insulating effect thus modifies/regulates soil temperatures.
Prevents water evaporation therefore moisture is retained in the soil for the plant use.
Controls soil erosion by intercepting rain drops before they hit the soil, reducing the speed of runoff and increasing rate of water infiltration.
Organic mulch decomposes into humus thereby improving soil structure/water holding capacity/drainage/aeration.
After decomposition it improves soil fertility by releasing nutrients.
Controls weed by covering the soil and suppressing their growth.
After decomposition better soil pH improves soil CEC
Mohaissack answered the question on October 10, 2017 at 14:41
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