The resource niche width of Aneurolopidium chinense,its seasonal change and niche overlap with other main plants at different levels on the northeastern Songnen rangeland were measured and analysed.

The niche breadth,the niche overlap and the percentage similarity of three species of main egg-parasites of rice planthoppers(Anagrus nilaparvatae Pang,Anagrus longitubulosus Pang and Anagrus paranilaparvatae Pang)were estimated by means of investigating their resource niche in paddy fields.

Research on Ecology Resources Value Compensation Mechanism;

How to balance the relationship between protection and development of natural ecological resources becomes the basis of sustainable development in scenic and historic interest areas.

This paper shows the ecological resources & formation and evolution of Sky Pool on Changbai Mountains and gives a approaching on erupting potentiality.

To protect, exploit and utilize resources, a control scheme on how to carry out respectively in small watershed control was put forward by analysing ecological resources in the watershed of Shuiquangou, through eight year studying of watershed control,significant ecological,economic and social benefits were gained.

An elementary analysis of the preservation and exploitation of ecological resources in shangri-la;

Project appraisal needs to appraise the economic effect caused by project imlementation,but the value of ecological resources generally show through non-economic indicator,which may account for the inconsistency of measurement in project appraisal.