Considerations and methods of water resources regulation during dry period in water-rich areas;

The authors point out that it is critical to optimize water resources allocation in water-rich areas from the scarcity nature of resources, and the importance of establishing a water saving society in water-rich areas.

It is obvious that forest can conserve water resource and soil,especially can adjust the flux in the season or year of water-in-abundance and water-in-deficient,and decrease flooding and soil eroding.

Comparative Study on the Population Ecology of Asian Smelt ( Hypomesus transpacificus nipponesis ) and Large Icefish ( Protosalanx hyalocranius ) in Shuifeng Reservoir;

Aspects of repoductive biology of large icefish (Protosalanx hyalocranius) in Shuifeng Reservoir;

Through a case study from Fengcheng mining area a method for gas weathering division is provided.

Based on the former informations of coal exploration、mining production and test of coal bed gas testing well in Fengcheng mining area, the composition and changeable law in contents of coal bed gas in B4 coal－bed, and the geological factors influenced its preservative features were analysed and studied，and by the way, the reservoir conditions of coal bed gas exploitation were also evaluated.