Our objectives were to investigate the effects of sediment phosphorus concentration (SP), plant density (PD) and their interaction on the plasticity of T.

It was investigated that the seasonal dynamics of bud bank, the effects of high sexual reproductive allocation on bud bank and daughter shoots, the changes of bud bank under different parent shoot density, C and N compound of apical rhizome bud response to bud bank seasonal dynamics, the effect of covering treatment during different growing phase on bud bank.

Dyeing method has been used to improve spore density measurement.

Applying for modified wet sieve and alkali trypan-blue stained method,the arbuscular mycorrhizal colonization level,spore density,species richness,species .

The arbuscular mycorrhizal status and the spore density of AMF in the rhizosphere soils of 4 plant species of Fagaceae,namely Castanopsis calathiformis,C.

Study of atomic average covalence electron density in EET;

Calculation of electron density on γ-Fe(111),Co(0001),Ni(111),C(0001) crystal plane and valence electron structure analysis of catalyst action;

Experimental research on electron density in solid-rocket motor plume;

In order to provide a plasma environment of high energy and low density, vertical and parallel microwave input models are designed at the entrance of the plasma source to increase electronic density and temperature.

The numerical results show that the electronic energy spectrum is shifted, the chemical potential is not equal to the atomic energy level, the electronic density at each lattice point is changed, and the variation of electronic density at surfa.

On the base of the ionospheric occultation data from COSMIC system,we analyzed the max electronic density of ionospheric F2 layer(NmF2)over seismic preparation zone from April to the end of May.