On the issue of urban lawn soils (on the example of cities of Primorye)

Abstract

On the issue of urban lawn soils (on the example of cities of Primorye). E.A. ZHARIKOVA, O.M. GOLODNAYA
(Federal Scientific Center of the East Asia Terrestrial Biodiversity, FEB RAS, Vladivostok).

Large areas on the territory of any city are lawns, which are one of the most important elements of improvement. But the state of herbage on them is often unsatisfactory. The purpose of this work is to determine the basic properties of soils of urban lawns of different quality. The vast majority of soils of urban lawns have light-loamy and medium-loamy granulometric composition and favorable acid parameters for vegetation: weak and close to neutral acid medium. Lawns with a good grass cover have sufficient power of the fertile layer, optimal bulk density and average and high content of humus and nutrients. The reasons for the unsatisfactory state of the grass cover are the insufficient power of the fertile layer, over-compaction, lack of structure, extremely high content of available phosphorus (as the result of unbalanced fertilizers applying). The regular soil tests are necessary for the timely establishment of negative changes in the main soil characteristics. Measures to improve the quality of the soil cover will ensure the normal functioning of the vegetation and maintain lawns in a good decorative state.