The theory and technology of nutrient resources integrated management and their application on high yield wheat-maize rotation system;

Hence,more attention should be paid to the recycling utilization of nutrient resources in organic manur.

The main characteristics and strategy of the research is starting from defining the resources the rural aged needs and building on the efective development of the resources, thinking that a new“family-community”model should be established whose goal is to improve the ability and the level of the rural aged obtain the endowment resources.

Strengthen the consciousness of resource protection to guarantee the safety of the power production;

Fishery environmental quality and resource protection of wild aquatic animal in Shaanxi province;

The relations between biology tourism and resource protection in Changbai Mountain;