Historical natural landscape
Laba river natural reserve
Natural landscape
天然景园
自然地景
天然景观
自然风景
自然风貌
山水
自然景观
自然山水
观生意
自然生态景观
potential natural landscape
Tourist areas of natural landscape
Jinshajiang River River Basin
River landscape district
Yongchang River landscape belt
acid hydrolyzation method and enzyme hydrolyzation method
cell- recurrence method and fractal box- counting method