The birth rates in Mongolia also are also low. km. [CDATA[ To get crude density, divide the total land area by the total population. Termed as the centre of minimum travel, the measure is helpful in the identification of the optimum location for some centralized services in a region. To get a better insight into the human-land ratio in terms of pressure of population on total cultivable land, the physiological and the agricultural densities Crude density, also known as arithmetic density, is the most commonly used measure of population density. Raw density The final equations corresponding to the two axes of the mean centre are thus: //