He momo parataiao ka tau ki te awa. Nā te turaki haere o ngā ngahere i ngā tahataha awa, kua nui haere te parahua. Ka piki haere te takere o ngā awa i te nui o te parahua, ā, ka maha haere ngā waipuke i ngā wā o te marangai.
A type of sediment that settles in rivers. The felling of forests has led to the increased silting of rivers. The riverbed rises because of the silting, which causes more frequent flooding in wet weather.