Secondly, we do key research of fuzzy system model in population dynamic systems, establish fuzzy rules from expert knowledge, design membership functions, select the appropriate fuzzy system to get population trajectory.

The concept and characteristics of VEIP are first generalized,and then,on the basis of comparability between VEIP and ecological species,the ecological characteristics of VEIP is fully analyzed.

A study on Handeliodendron population ecology in South Guizhou;

This paper gives the review on research in China about forest musk deer population from classification,geographical distribution,system decomposition,population ecology and cultivation,based on the l.

In light of the relevant references, the population ecology research progress of Tomicus piniperda of Pinus yunnanensis was reviewed from the aspects of the factors affecting the damage of the pest, life cycle, period of shoot feeding and trunk attacking, population dynamics, life table, spatial distribution pattern and forecast of occurrence.

Advances on the researches of bamboo population ecology;

Studies on Population Ecology of Cyclobalanopsis Elebaticostata in Subtropical Mountain Land;

The theory of population ecology is introduced into project portfolio risk management,after the researches on project portfolio management are briefly reviewed.