|
|
Annual Growth Rate: Perhaps more significant than the actual size of the population is the rate of growth and the ratio of people to arable land. The rate of growth is estimated at about 2.2% per annum. Although this rate is not among the world's lighest, if such a relatively moderate rate is ipplied to the large base population, the annual growth rate jrowth exceeds 15 million people. Also, when Jie total land area of China is considered, the lumber of people per square mile is about 160 (414 per sq km), a rather low density.
The growth of the British economy—measured conventionally as the compound annual growth rate rate of growth of the gross national product per head-has averaged since 1950 about 2.5%, or about one half the rates of other industrialized economies. Productivity in manufacturing has grown at a slightly higher rate than in the service sector, and in some sectors of manufacturing (chemicals and motors, for example) much faster than in others (textile and food industries).
annual growth rate Growth.—An individual tree located in a favorable situation grows relatively slowly as a seedling, and rather faster as a sapling and young tree. However, upon reaching maturity, the rate of annual growth rate growth decreases to a low level. This pattern of behavior is well illustrated in the decreasing width of the annual growth rate growth rings of mature and old trees. There is relative uniformity in the over-all patterns of growth of various tree species, although the actual patterns may differ widely in individual trees of different species. For example, individual Sitka spruce trees in the Pacific Northwest may continue to grow rapidly in height and diameter at 150 years of age, whereas red spruce trees in northeastern North America have reached maturity in less than 100 years, and will grow a negligible amount in subsequent years. |
|
|
|
|
