World dynamicsWright-Allen Press, 1971 - 142 pages |
From inside the book
Results 1-3 of 22
Page 5
... gives the land available for agriculture . The agricultural land per person can be interpreted to give the adequacy of food supply as assumed in Figure 1-3 . A position along the horizontal axis corresponds to the agricultural land ...
... gives the land available for agriculture . The agricultural land per person can be interpreted to give the adequacy of food supply as assumed in Figure 1-3 . A position along the horizontal axis corresponds to the agricultural land ...
Page 6
... gives the land units needed for occupancy at the rate of 1 unit per person . The fourth column shows the land remaining for agriculture from the total of 24,000 million units . The fifth column gives the land units per person available ...
... gives the land units needed for occupancy at the rate of 1 unit per person . The fourth column shows the land remaining for agriculture from the total of 24,000 million units . The fifth column gives the land units per person available ...
Page 38
... gives the natural - resource fraction remaining NRFR . NRFR.K - NR.K / NRI NRFR 7 , A ยท NATURAL - RESOURCE FRACTION REMAINING ( DIMENSIONLESS ) NR NRI NATURAL RESOURCES ( NATURAL RESOURCE UNITS ) NATURAL RESOURCES , INITIAL ( NATURAL ...
... gives the natural - resource fraction remaining NRFR . NRFR.K - NR.K / NRI NRFR 7 , A ยท NATURAL - RESOURCE FRACTION REMAINING ( DIMENSIONLESS ) NR NRI NATURAL RESOURCES ( NATURAL RESOURCE UNITS ) NATURAL RESOURCES , INITIAL ( NATURAL ...
Contents
Introduction | 1 |
Structure of the World System | 17 |
A World Model Structure and Assumptions | 31 |
Copyright | |
6 other sections not shown
Common terms and phrases
1970 conditions accumulation agricultural land assumed assumptions behavior billion birth rate normal birth-control program BRFM BRN1 capital investment CAPITAL UNITS CAPITAL UNITS/PERSON CAPITAL-INVESTMENT DISCARD capital-investment ratio CAPITAL-INVESTMENT-IN-AGRICULTURE FRACTION cause Chapter CI=C CIAF CIGN1 CIMT Club of Rome coefficient computer model crowding ratio curve death rate normal decline DRFM dynamic ECIR effect effective-capital-investment ratio equations equilibrium exponential growth food production food ratio food supply FPMT FRACTION/YEAR in-agriculture fraction increase industrialization INTERPOLATION limit LOGICAL FUNCTION material standard mental models MULTIPLIER DIMENSIONLESS natural-resource Natural-resource-usage rate negative loop NR=N NREM NREMT NRUN1 POLN1 POLAT pollution absorption pollution crisis pollution ratio POLR POLLUTION UNITS pollution-absorption population and capital population density pressures QL-Q ratio CIR RATIO DIMENSIONLESS result rise Section sector shortage social systems SQUARE KILOMETERS standard of living system levels TABHL TABLE LOOK tion units per person UNITS/PERSON/YEAR UNITS/YEAR usage rate variable world model world population world system