Complex sentence: The hydrological balance and water quality in the Park can be potentially altered by changes to surrounding drainage systems and for amphibians present in the Park this could put additional pressures for them in an environment that is already restricted, fragmented and in decline.
Split into simpler sentences: The hydrological balance and water quality in the Park can be potentially altered by changes to surrounding drainage systems. For amphibians present in the Park this could put additional pressures for them in an environment that is already restricted, fragmented and in decline.