The effects of environmental factors on the fluctuations of Sinopotamon chekiangense Tai et Song's population;

Spatial and temporal distribution of water hyacinth population in Shanghai and its control methods.;

Effects of methamidophos and acetochlor on population and activity of methanogens.;

Analysis on biomasses and contents of active components in roots of Salvia miltiorrhiza from different populations;

Analysis on genetic diversity of different Salvia miltiorrhiza geographical populations in China;

Study on intraspecific genetic diversity in different plantpopulations of Pogostemon cabli;

The methodology of graph theory principle coordinates analysis on human population genetic structure;

Application of Intermix Increasing Chain and Intermix Index of Multi-character Populations Information Entropy;

Differences of nitrogen accumulation amount of population with high yield and good quality in wheat for different end uses;

Time-evolution of the population of a four-level atom in a two-mode cavity;

With the help of numerical calculation and theoretical analysis, we find that the populations of the upper and lower levels display quasi-oscillation, and the frequency and amplitude of the oscillation is greatly affected by the intensity of the external-driving field Ω, the detuning δ and the background decay of the upper level γ.

The basic atomic physical processes of laser beams interacting with a solid target is checked and the effects of a Planckian radiation field on the population of bound electrons are studied.