Spatial distribution pattern,its scale,and gap characteristics of Pinus armandii population in Qinling Mountains;

The total solar radiation, direct solar radiation, scattered radiation, reflected radiation and net radiation of two kinds of Pinus armandi community in May were measured and analyzed.

This paper introduces the chemosterilization of Pinus armandi seeds withTBZ chemical，which has been tested as effectively operational for retarding the deteriora-tion of the seeds when sufficient ventilation is ensured under the conditions that the watercontent is 14％～19％and temperature from 6～26℃.

Steroids from Pliocene Fossil Pinus armandii;

Dynamic laws of chlorophyll fluorescence parameters in needle leaves of different leaf ages and locations of Pinus armandii;

Heritability Analysis and Superior Family Selection for Half-Sib Test of Pinus armandii;

The results showed that the oil contents of seed kernel of Pinus armandi was 56.

The results showed that pinus armandi seed oil is not only nutritious.

Pinus armandi seed oil was extracted through organic solvent and was refinedly prepared through combination of steam distillation with high temperature and alkali purification process.