Complex sentence: Water pollution is also a great factor in the habitat destruction of the Chinese giant salamander; mining activity in areas near their streams often causes runoff that sullies the water Yan, Fang, et al.
Split into simpler sentences: Water pollution is also a great factor in the habitat destruction of the Chinese giant salamander. Mining activity in particular in areas near their streams often causes runoff that sullies the water Yan, Fang, et al.