中文摘要：

中国丹霞地貌的中生代优势以及陆相沉积特征是中国的特色也具有世界代表性。通过对中生代主要出露红层盆地室内计算机空间叠置分析,利用大量的野外现场调研检验等手段,计算出不同时期不同规模的红层面积。其中,中侏罗世3个红盆面积45.16×10~4km^2,中、晚侏罗世28个红盆面积149.17×10~4,早白垩世17个红盆面积55.97×10~4km^2,晚白垩世24个红盆面积106.9×10~4km^2,早第三纪31个红盆面积135.73×10~4km^2。通过对实地测量及对比分析,发现红层盆地建造发育成丹霞地貌的贡献率为6.5%左右。可计算中、晚侏罗世红层发育的丹霞地貌面积为9.7×10~4km^2,早白垩世红层发育的丹霞地貌面积3.6×10~4km^2,晚白垩世24个红盆面积6.9×10~4km^2,早第三纪31个红盆面积8.8×10~4km^2,这样统计中国丹霞地貌的总面积为29×10~4km^2。这一数字因丹霞地貌自身发育的阶段性会出现偏差,考虑气候-构造-地貌相互耦合作用的结果,典型丹霞地貌随着时间的推移,增加和减少的面积将达到一个平衡,基本稳定在20×10~4km^2左右,这就是中国丹霞地貌的面积数据。

英文摘要：

It is very representative in the world that Danxia Landform in China with mainly formed from Mesozoic layers, such as red-coloured sandstones and conglomerates so on, which almost from continental sedimentary fea- ture. Based on spatial overlay analysis, compared with field survey test, firstly this paper calculated the area of red beds in different periods and different sizes. Three red basins in the Middle Jurassic an area of 45.16× 104 km2, 28 red basin in middle and late Jurassic of 149.17 ×104 km2, 17 red basins in early Cretaceous of 55.9×104 km2, 24 red basins in Late Cretaceous of 106.9 ×104 km2, and 31 red basins in early third century of 135.73×104 km2. Through analysis of field measurement and comparison form Pingshi Red-beds basin, the landscape con- tribution rate is about 6.5 % , from red beds to Danxia landform. So the total area of Danxia landform of China is a- bout 32×104 km2. Consider the climatic and tectonic and landform interaction results, during the Danxia landform development stage of the deviation, the area of classical Danxia landform will reach a balance and maintained at 20 × 104 km2. It is the basic area data of Danxia landform in China.