To provide a basis for urban afforestation of water conservation in the Three Gorges Reservoir Area,based on the observation data of rainfall and runoff process during 2002-2005,the authors studied the runoff generation characteristics of the four typical forests on three time scales in Jinyun Mountain,Chongqing City.

With the hydrous thermal pressure simulation experiments of the solid bitumen,bitumen limestone,bitumen sandstone and oil with different media,the experiment result of the characteristic of gas-generating factor,gas-generation potentiality and their affecting factor of the marine crude oil and bitumen was correlated.

Foam drainage evaluate the production performance of gas well

The processing technology and product features of China special type rice wine;