Es_3~4 is the main oil-bearing zone in the Sanchunji area.

Detection of antibody IgG against Toxoplasma gondii from pregnant/parturient women and cancer patients in Changchun region;

The buffer action of different types of soil in Changchun region and the influence of the physical and chemical characters of soil on the soil buffer action were studied in a simulated experiment.

Analysis on ancient and famous trees in Changchun district,China;

Study on resources of old tree and famous wood in Changchun district and growth status;

After computation,we know that the cost of solar energy boiled water tank is the least in Changchun District when we determine the area of collector according to the average intensity of solar radiation in April.

A Study in Rural Workers Social Capital in Changchun Area;

The fluxes of CH 4 emission from rice fields were measured by the method of static chamber in Changchun area in 3 consecutive years.

Genesis of dioritic inclusions in Late Ordovician granitic rocks in the Yichun area;

Geochemistry of Late Triassic-Early Jurassic aluminous A-type syenogranite-alkali feldspar granite in Yichun area,Heilongjiang Province and its tectonic implications