This article analyses the causes for the decline in the fertility rate of China's population The author attributes the tremendous decline to the following leading causes: the profound understanding and high politi...This article analyses the causes for the decline in the fertility rate of China's population The author attributes the tremendous decline to the following leading causes: the profound understanding and high political commitment of top Chinese leaders, integration of population with development, the extensive IEC programme and effective technical service, on top of others. The author tells how population and development are integrated in practice in the past decades and the overall effectiveness of the integration approach.展开更多
A new Vary in Distance Leslie Matrix is adopted to process the observed data of a giant panda population’s development trend dynamics with unequal distance age groups. Results show that this new method adopted is mu...A new Vary in Distance Leslie Matrix is adopted to process the observed data of a giant panda population’s development trend dynamics with unequal distance age groups. Results show that this new method adopted is much simpler than the usual lesile Matrix analysis, and no need of deviding the pandas into equal distance age groups and no so many asumptions are needed as in the usual Leslie Methods. We only changed the meaning of some elements in Leslie Matrix and processed the developmental trend of panda population in Wolong Wu Yi Peng successfully we also carried out a sensitivity analysis of many parameters as well as the computer simulation.展开更多
文摘This article analyses the causes for the decline in the fertility rate of China's population The author attributes the tremendous decline to the following leading causes: the profound understanding and high political commitment of top Chinese leaders, integration of population with development, the extensive IEC programme and effective technical service, on top of others. The author tells how population and development are integrated in practice in the past decades and the overall effectiveness of the integration approach.
文摘A new Vary in Distance Leslie Matrix is adopted to process the observed data of a giant panda population’s development trend dynamics with unequal distance age groups. Results show that this new method adopted is much simpler than the usual lesile Matrix analysis, and no need of deviding the pandas into equal distance age groups and no so many asumptions are needed as in the usual Leslie Methods. We only changed the meaning of some elements in Leslie Matrix and processed the developmental trend of panda population in Wolong Wu Yi Peng successfully we also carried out a sensitivity analysis of many parameters as well as the computer simulation.
