Mycobiota of the snow cover of the territory of Samaracity

The article presents a characterization of mycobiota of the formed snow cover in Samara in 2013 and 2014. In the snow cover of suburb, uncontaminated areas of coastal parks Strukovsky and Zagorodnyi micromycetes were detected in the form of single colonies, or were not detected at all. Increase of microscopic fungi in the snow cover of the city (42 CFU/ml) was observed on the territories bordering highways, streams of people, that is due to the horizontal transfer of air masses. The composition of dominant micromycetes of the snow cover (a measure of occurrence was greater than 60 %) in 2013 and 2014 varied considerably and depended on the climatic conditions of the previous warm period of the year and the strength of the current winter frosts. Subdominant (incidence below 11 %), of the snow cover in winter periods studied were similar and were the fungi of the genus Alternaria, constantly prevailing in mycobiota air environment of the city in the summer-autumn period.

Seasonal Characteristics of Subsoil Salinity of Coastal Parks in Shanghai

Vegetation in coastal parks is more sensitive and fragile to subsoil salinity. 600 subsoil samples in a newly-developed coastal park and 1800 subsoil samples in three old non-coastal parks in Shanghai, China were collected. The subsoil salinity of coastal park is 4.83 times higher than that of non-coastal parks. The average subsoil salinities in Spring and Winter are higher than that in Summer and Autumn. Collaborative vertical trend of subsoil salinity for four seasons is significant (p<0.05). Therefore, the ditches should be adjusted for salt elimination according to location of highly saline plaques, and seepage interception projects should be set up between green-space and unimproved land and the vegetation should be watered more frequently in Spring than that in other seasons.