[Potential of Arbuscular Mycorrhizal Fungi, Biochar, and Combined Amendment on Sandy Soil Improvement Driven by Microbial Community].

Sandy soils are considered as a significant transition phase to desertification. The effective recovery of sandy soils is of great significance to mitigate the desertification process. Some studies have shown that arbuscular mycorrhizal (AM) fungi and biochar improved the sandy soil, but there have been very few studies regarding the combined effects of AM fungi and biochar amendments on sandy soil improvement.

[Relationship between levels of antibody to schistosome of armed police officers and soldiers and their camp environment].

Objective: To understand the schistosome infection status of armed police officers and soldiers in endemic areas of the middle and lower reaches of the Yangtze River and the impact caused by the camp environment.

Methods: The inside and outside environments of camps were investigated and they were classified as Grade A, B and C according to scores. The levels of antibody to schistosome of the armed police officers and soldiers were tested with ELISA.

[Endemic situation and control strategies on schistosomiasis in Armed Police Forces in marshland and lake regions].

Objective: To investigate the prevalence of schistosomiasis in Armed Police Forces in marshland and lake regions so as to provide the evidence for policy-making of the disease control.

Methods: The different types of duty were selected by the stratified cluster random sampling method in endemic areas of marshland and lake regions, and the snail survey was conducted, and the infectious status and epidemic factors of officers and soldiers who served more than 2 years were investigated.

Results: The geographical features included the embankment type, island type and islet type, and the serological positive rates were 1.