摘要
Taking into account the regional carrying capacity,the population capacity and optimum population of Binzhou City from 2007 to 2017 under certain economic,resource and environmental conditions were calculated based on PEER model.The results show that the population capacity of Binzhou City during 2007-2017 ranged from 6.03 million to 6.43 million,and ecological optimum population was between 5.05 million and 5.34 million.The actual population of the city was between 3.74 million and 3.94 million.The impact of the "two-child" policy on population growth was small,and there was still room for population growth.The population pressure index was greater than 0.7 and less than 1,showing that economic and resource population carrying capacity had certain surplus but were still not optimistic.Environmental pressure index was relatively high,and population carrying capacity was low.
Taking into account the regional carrying capacity,the population capacity and optimum population of Binzhou City from 2007 to 2017 under certain economic,resource and environmental conditions were calculated based on PEER model. The results show that the population capacity of Binzhou City during 2007-2017 ranged from 6. 03 million to 6. 43 million,and ecological optimum population was between 5. 05 million and 5. 34 million. The actual population of the city was between 3. 74 million and 3. 94 million. The impact of the " two-child" policy on population growth was small,and there was still room for population growth. The population pressure index was greater than 0. 7 and less than 1,showing that economic and resource population carrying capacity had certain surplus but were still not optimistic. Environmental pressure index was relatively high,and population carrying capacity was low.
基金
Supported by Scientific Research Foundation of Binzhou University(BZXYL1805)
