Objective     To investigate the type and number of airborne and soil microorganism and their drug sensitivity from 3 districts along the Dian-Zang line in winter and summer. Methods    In the midmonth of November

2014

and of June 2015

12 points from the east

south

west and north regions of Shangri-La

Deqin and Markam districts were selected

separately as sampling points. The air sampling was performed by plate natural sedimentation

and the soil samples were collected through random distribution. The bacterial and fungus were isolated

identified and counted by routine methods. Drug sensitive test was conducted by K-B method. Susceptibility testing was conducted by K-B method.   Results      The average amounts of airborne microorganism in Shangri-La

Deqin and Markam were 521.5±73.1

424.7±30.6 and 296.3±77.5 cfu/m

3

respectively in the winter

and were 662.6±60.4

543.0±62.3

and 384.1±47.4 cfu/m

3

respectively in the summer. And the average amount of soil microorganism was (8.38±1.49)×10

6

(7.03±1.19)×10

6

and (5.58±1.06)×10

6

cfu/g in the winter

and were (15.81±2.41)×10

6

(12.07±1.71)×10

6

and (10.13±1.63)×10

6

cfu/g in the summer

respectively in the 3 districts. The percentages of the germs were Gram-negative bacteria

Gram-positive bacteria

anaerobic bacteria and fungi in turn

with significant differences among the percentages (P0.05). In addition

most microorganisms were sensitive to the commonly used antibiotics.  Conclusion      The types and number of microorganisms in the air and soil and their drug sensitivities are obtained in the 3 districts along the Dian-Zang line

which provides the guidence for the prevention

diagnosis and treatment of natural disasters and infectious diseases.