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The story of "The Battle of Wujiang" takes place mainly in the core area of karst (a world natural heritage site) in southern China (one of the volumes will be titled "Karst Love"). Pen & Fun & Pavilion www.biquge.info so let's first introduce the karst terrain.

(1) Karst

Karst is karst, which is a general term for the geological action of water on soluble rocks (carbonate rock, gypsum, rock salt, etc.) mainly by chemical dissolution, supplemented by mechanical actions such as erosion, latent erosion and collapse of flowing water, as well as the phenomena caused by these actions. The landform caused by karst is called karst landform (karst landform). "Karst" was originally the name of the limestone plateau on the Istrian peninsula in northwestern Yugoslavia, where typical karst formations developed.

(2) South China Karst

"South China Karst" is a world natural heritage of China, which was included in the UNESCO World Heritage List in 2007 and added in 2014, and is now composed of seven karst landforms in Yunnan Stone Forest, Guizhou Libo, Chongqing Wulong, Guangxi Guilin, Guizhou Shibing, Chongqing Jinfoshan and Guangxi Huanjiang. Among them, Yunnan Stone Forest, Guizhou Libo and Chongqing Wulong formed the first phase of the "South China Karst", which was declared and unanimously selected as a World Natural Heritage Site at the 31st session of the World Heritage Committee on June 27, 2007, and the "South China Karst Phase II" project formed by Guilin in Guangxi, Shibing in Guizhou, Jinfo Mountain in Chongqing and Huanjiang in Guangxi Province, which was selected as a World Natural Heritage Site in the 38th session of the World Heritage Committee on June 23, 2014, as an extension of the "South China Karst".

"South China Karst" has the most significant karst landforms (such as minaret-shaped and cone-shaped karst) and majestic and peculiar karst landscapes such as Tiansheng Bridge and Tiankeng, and is one of the most spectacular tropical to subtropical karst landforms in the world.