... thaturbanexpansionhasspatiallyincreased in alldirections, but it was mainly concentrated in the North, West and East of the city andalong the mainroads. In the upcomingyears,duetotrend of expansion,HoChiMinhCitywill become ... districtboundary,majorroads.4.Resultsanddiscusions4.1.Urbanexpansionduring the period of 1989‐2002 The research results showed thatpopulation explosion was the main cause of urban expansion. Ho Chi Minh ... rateStudyareaVNUJournal of Science,EarthSciences24(2008)104‐111104Research on the effect of urbanexpansion on agriculturalland in HoChiMinhCitybyusingremotesensingmethodTranThiVan*Institutefor Environment andResources,VNU‐HCMCReceived11April2008;received in revisedform13July2008Abstract.HoChiMinhCityisaone of the biggestcities of Vietnam.Before1945,therewereabout400,000inhabitantsliving in the city.During the lasttwodecades,itbecame the ...