Maqolada Farg`ona tog`lararo botiqligi hududida lyoss jinslarini tarqalishi va cho`kuvchanligiga ta’sir etuvchiasosiy omillar GAT texnologiyasi asosida va kosmosuratlardan foydalangan xolda taxlil etildi.Farg`ona tog`lararobotiqligi hududiga masshtabi 1:500000 raqamli topografik asos kartalari yaratildi. Ularning 3-o`lchamli ko`rinishiizlanishlarning aniqligini oshiradi.Tadqiqotlar natijasiga ko`ra Farg`ona tog`lararo botiqligida less jinslarini tarqalishiva cho`kuvchanligini raqamli xaritasini yaratildi va shu asosda seysmik xavfni baxolash ilmiy asoslaritakomillashtirildi, shu erda less maydollarni chukuvchanligi turtta xuddudga bulingan.Farg`ona tog`lararo botiqligibo`yicha less va lessimon jinslarni tarqalish qonuniyatlari aniqlandi. Turli genetic klassga kiruvchi less va lessimonjinslarni qalinligi, yotish xolati o`rganildi.
Tayanch iboralar: geografik axborot sistemalari, masofadan turib erni zondlash, integrallashtirilgan texnologiya,lyoss jinslar, muxandislik geologiyasi, chukuvchanlik jarayoni.
The main factors influencing the subsidence of loesses of the Fergana intermontane basin on the basis of GIStechnologies and space survey materials are analyzed. The digital topographic base is developed on a scale of 1:500000. It three-dimensional view allowed conducting research more accurately. Based on the results of the research, adigital schematic map of the prognosis of the subsidence of the terrain distribution area of the Fergana Depression hasbeen developed and, based on it, the scientific basis of the seismic hazard assessment has been improved, where theloess areas are divided into four districts according to the subsidence. The regularities of the distribution of loess andloess rocks along the territory of the Fergana intermontane depression are determined. The thickness and distribution ofloess and loess rocks of different genetic classes has been studied.
Key words: geographic information system, earth remote sensing, integrated process, loess, geological engineering settlement, subsidence processes.
