摘要
一个区域生态适度人口的确定取决于区域生态承载力与区域人口对生态资源的需求。首先介绍了生态足迹模型的基本概念和计算方法,其次计算了陕西省1990-2004年的生态足迹和实际利用的生态承载力,并在此基础上估算了陕西省1990-2004年的态适度人口。结果表明：在1990-1998年,陕西省年生态适度人口由2898.9万人下降到2 104.32万人,陕西省实际人口由3 275.02万人增加到3 596万人;1999-2000年,陕西省生态适度人口由3 086.35万人增加到3 113.48万人,陕西省实际人口由3 618万人增加到3 648万人;2001-2004年,陕西省生态适度人口由3 030.53万人下降到2 204.76万人,陕西省实际人口由3 659万人增加到3705万人。总之,陕西省目前以出现过度人口和生态赤字,具有相对较大的人地矛盾,处于不可持续发展的状态。最后提出陕西省未来发展的一些策略。
The ecological optimum population of a district is decided by ecological capacity in the district and district population＇s need about the ecological resources.This paper,firstly,introduced the key conceptions and procedures of the model,and then calculated the ecological footprint and the utilizable ecological capacity from 1990 to 2004 in Shaanxi province.On this basis,the optimum population was estimated from 1990 to 2004 in Shaanxi province.The results showed that during 1990-1998,the ec-optimum population of Shaanxi province gradually decreased from 2898.9 million to 2104.32 million,and the actual population of Shaanxi province gradually increased from 3275.02 million to 3596 million,during 1999-2000 the ec-optimum population of Shaanxi province gradually increased from 3086.35 million to 3113.48 million,and the actual population of Shaanxi province gradually increased from 3618 million to 3648 million,during 2001-2004,the ec-optimum population of Shaanxi province gradually decreased from 3030.53 million to 2204.76 million,and the actual population of Shaanxi province gradually increased from3659 million to3705million.To sum up,it revealed that Shaanxi province had already in a state of ecological deficit and overpopulation,and the current size of the population was very unreasonable.Finally,the available ways for the sustainable development of Shaanxi Province in the future were put forward.
出处
《地下水》
2011年第3期177-181,共5页
Ground water
关键词
生态足迹
生态承载力
适度人口
陕西省
Ecological footprint
ecological capacity
optimum population and Shaanxi province
