Geography
The circuitous Arnhem Land escarpment, a dramatic 30m- to 200m-high sandstone cliff line, forms the natural boundary between Kakadu and Arnhem Land and winds 500km through eastern and southeastern Kakadu.
Creeks cut across the rocky plateau and, in the wet season, tumble off it as thundering waterfalls. They then flow across the lowlands to swamp Kakadu's vast northern flood plains. From west to east, the rivers are the Wildman, West Alligator, South Alligator and East Alligator (the latter forming the eastern boundary of the park). Such is the difference between the Dry and the Wet that areas that are perfectly dry in September will be submerged in 3m of water come December. As the waters recede, some loops of wet-season watercourses become cut off but don't dry up. These are billabongs, which are often carpeted with water lilies and attract water birds.
The coastal zone has long stretches of mangrove swamp, important for halting erosion and as a breeding ground for bird and marine life. The southern part of the park is dry lowlands with open grassland and eucalypts. Pockets of monsoon rainforest crop up throughout the park.
Over 80% of Kakadu is savanna woodland. It has more than 1000 plant species, many still used by Aboriginal people for fo
Geography
The circuitous Arnhem Land escarpment, a dramatic 30m- to 200m-high sandstone cliff line, forms the natural boundary between Kakadu and Arnhem Land and winds 500km through eastern and southeastern Kakadu.
Creeks cut across the rocky plateau and, in the wet season, tumble off it as thundering waterfalls. They then flow across the lowlands to swamp Kakadu's vast northern flood plains. From west to east, the rivers are the Wildman, West Alligator, South Alligator and East Alligator (the latter forming the eastern boundary of the park). Such is the difference between the Dry and the Wet that areas that are perfectly dry in September will be submerged in 3m of water come December. As the waters recede, some loops of wet-season watercourses become cut off but don't dry up. These are billabongs, which are often carpeted with water lilies and attract water birds.
The coastal zone has long stretches of mangrove swamp, important for halting erosion and as a breeding ground for bird and marine life. The southern part of the park is dry lowlands with open grassland and eucalypts. Pockets of monsoon rainforest crop up throughout the park.
Over 80% of Kakadu is savanna woodland. It has more than 1000 plant species, many still used by Aboriginal people for fo
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