Deforestation causes increases in erosion and flooding. ... Tree root systems hold the soil together to slow the rate of flooding and reduce erosion. Trees themselves also absorb water during the rainy season.

How does deforestation bring flood?

Deforestation results in decreased water holding capacity of soil. This reduces the infiltration of water into the ground, which causes floods. ... As a result, when there is heavy rainfall, the rainwater does not seep down into the ground and is not absorbed by the trees. Hence, it leads to flooding.

Does removing trees cause flooding?

Deforestation has a second impact on flooding -- the release of sediment. Vast amounts of eroded soil wind up in river beds, shrinking channels and the river's ability to carry water without flooding.