City history form and water environment--Dissection of development and changes of Yangxin County Town in Hubei Province;

Through analyses "eight scene" in yangrin, this paper expounds the characteristics of mountains-water and landscape city in yangxin and raises that the construction of mountains-water and landscape city at present must study the experiences of traditional from natural ecological and humanism ecological, found new mountains-water city with local natural and humanism characteristics.

Taking the Nanlitong structure as an example,the paper elucidates reservoir and structural characteristics of Yangxin Series,sums up distribution law of fractures and gas pools in study area, presents a synthetic analysis method for predicting fractures depending on seismic anomaly, fault.

Yangxin series in southeast area of Sichuan carbonate reservoir matrix with low porosity and low ermeability, highly heterogeneous characteristics of the fractured reservoir is the main space and infiltration routes, in the reservoir prediction, the use of a single subject or a single way to predict its often very difficult.

This paper is about that bambusoideae resources including 26 species belonged to 5 genera have been founded in Yangxin county.

Yangxin County is one of the biggest mining counties in Hubei,but the shortage of mineral resouces becomes more and more serious with a great of mineral having been exploited.