HIGH HETEROGENEITY OF SOILS IN THE RESIDENTIAL AREA OF IASI

The area of the residential spaces from Romania still has a tendency to expand. Residential spaces are part of the national economy and also plays a vital role in urban environment. One of the permanent concerns of the owners of the residential spaces is the creation of pleasant, comfortable and relaxing landscapes because he quality of environment directly influences physical, mental and spiritual life of people. For communities that pay special attention for relaxing landscapes on a site, it is usefully to focus on the characteristic of the soil at the site. Frequently, the urban soils from residential area are characterized by a strong spatial heterogeneity resulting from various input of exogenous materials and mixing of material from different soil horizons or even with lithological material on which the soil was formed. After carrying out field investigations we found different and varied soil limitations for plants even on small areas. The results obtained during the investigations made it possible to present some representative case studies of high heterogeneity of urban soils for the residential area in Iasi.