The soil coleopteras in Changchun City were investigated with the emphasis laid on the species richness and abundance in relation to the types of land-use,i.

A survey on the ecological characteristics of soil nematodes in the mid-west plain in Jilin Province;

Extraction efficiency of soil nematodes by different methods;

Diversity and community analysis of soil nematodes associated with three plant species in Mu Us sandy land of Ordos Plateau;

Effects of polycyclic aromatic hydrocarbons on soil nematodes and soil microbial biomass;

Changes among soil nematode community characteristics in relation to different vegetation restoration practices in the moderate degraded grasslands of Songnen;

Effect of land-use on soil nematode communities in the agro-pastural ecotone of West Jilin Province.;

Influence of vegetation reclamation type on the characteristics of soil collembola community in seriously alkalinized and degraded grasslands of Songnen Plain.;

The ecological distribution of soil collembola in Jiuhua Mountain;

Effects of mowing practice and fencing enclosure on the soil collembola community in an alkalinized grassland of Leymus chinensis in Songnen Plain;

Effect of different fertilizer treatments on crop soil insect community at Black soil district in Jilin Province;

MethodSoil insect was collected in 0-20 cm of soil by Modified Tullgren and the ground dwelling soil insect by pitfall traps.

A preliminary investigation on the soil insects was spot checked from three sample sites of jujube gardens in Yanan region on march,june,september,november,2007.

The ecological distribution of soil collembolan in the Liangshui National Natural Conserve;