一、重要意义广西是一个石灰岩分布甚广的省区 ,石灰岩分布面积达 9 7万平方千米 ,约占全区总面积的 40 % ,主要分布在桂西、桂西南、桂中、桂东北等地。其中以都安、河池、平果、忻城、合山……等 2 7个县 (市 )分布最为集中。这些县 (市 )石灰岩分布面积均占本县 (市 )面积的 I. Significance Guangxi is a widely distributed limestone province with a limestone area of ​​97,000 square kilometers, accounting for 40% of the total area in the region, mainly distributed in western Guangxi, southwest Guangxi, Guangxi, and northeast Guangxi Other places. Among them, Du’an, Hechi, Pingguo, Xincheng, Heshan, etc. are the most concentrated in 27 counties (cities). The distribution area of ​​limestone in these counties (cities) accounts for the area of ​​the county (city)