How can buffer strips have a positive impact on waterways?

Answer :

A buffer strip is an area of land which has permanent vegetation and its purpose is mainly to deal with environmental problems.

Buffer strips can have a positive impact on the waterway in the following manner:

1. It can decrease the soil erosion as the roots of vegetation will facilitate in reaching the soil.

2. It decreases the pollutants in the waterways as it slows down the runoff from the agricultural lands as well as absorbs the pollutants.

for  example, forests have higher evapotranspiration than other ecosystems,  such  as grasslands, because of their deeper roots and greater leaf area. thus forests have a net moistening effect on the atmosphere and become a moisture source for downwind ecosystems.