Spatial Variation Of Biological Contamination Of Soil From Najaf City

摘要

The study is focused on the soil as an important element of the environment and the person who exercises all its various activities and the fact that the study area is part of the province of Najaf. The biological characteristics of the soil and their spatial variation were studied because the soil is the basis for all activities, whether agricultural, industrial or service. The bacteria and fungus grow significantly within the areas affected by waste blood and slaughter in the soil, the wastewater used in agriculture as well as agricultural fertilizers, which are a suitable environment for the growth and multiplication of them. Bacteria and fungi in the soils affected by industrial activities, especially brick factories and the accumulation of elements and chemical compounds in the soil, which kills bacteria and fungi, despite the presence of moisture and other nutrients help in their growth. It was found that the most common types of bacteria in the soil are Bacillus and Pseudomonas bacteria. Aeromonas is concentrated in soil contaminated with meat and sewage waste. Alternaria alternate and Cladosporium have the lowest incidence in the soil area of the study compared with other types of fungus and their presence in the affected soil was concentrated by the slaughter of cattle and sewage waste, which is a suitable environment for growth.