As a useful paleo environmental carrier, karst stalagmite has always been emphasized because of the following advantages: it is of wide distribution, bears continuous and completed records, is sensitive to local and global climate change, and it can be very precisely timed using the TIMS U series method.

By means of the analysis on the geological environment, resources environment and environment problems, according to the topographic geomorphic features, the cities and towns in the Karst stone mountain area in southwestern Hubei, are classified as three types that are basin type with haystack hill and solution depression, groove (stream) adjoined type and depression type with Karst groove valley.

By means of the analysis on the geological environment, resources environment and environment problems, according to the topographic-geomorphic features, the cities and towns in the Karst stone mountain area in southwestern Hubei, are classified as three types that are basin type with haystack hill and solution depression, groove (stream)-adjoined type and depression type with Karst groove-valley.

The analyses of the reasons of anhydrite karst along Qinghai-Tibet Railway;

As constructing the tunnels with soluable calcareous rocks whose geological con-ditions are complex, the outflow,mud-flow and surface collapse are usually occurred,caus-ing the construction of tunnels and later thc maintenance in traffic extremely difficult andhardly to be brought under control.