• 资源生态 •

### 海南省自然生态承载力研究

1. 1. 海南大学旅游学院 海口570228;
2. 中国地质大学环境学院 武汉430074
• 收稿日期:2007-07-01 修回日期:2008-01-03 出版日期:2008-05-28 发布日期:2008-05-28
• 作者简介:符国基(1957-),男,海南文昌人,教授,博士,主要研究环境科学和旅游科学。
• 基金资助:

海南省自然科学基金项目(80625);海南省哲学社会科学规划课题(HNSK08-03)

### Natural Ecological Carrying Capacity in Hainan Province

FU Guo-ji1, XU Heng-li2, CHEN Wen-ting1

1. 1. Tourism College,Hainan University,Haikou 570228,China;
2. Environmental School,China University of Geosciences,Wuhan 430074,China
• Received:2007-07-01 Revised:2008-01-03 Online:2008-05-28 Published:2008-05-28

Abstract: Natural ecological carrying capacity is one of the leading fields of international quantitative study of sustainable development.The model calculated regional natural ecological carrying capacity with actual productivity and effective service function of natural ecological system and coupled self-purification ability with water resource supplying function.Therefore the model was named as "actual supply law".The research indicated that "actual supply law" reflects a regional natural ecological carrying capacity objectively and accurately.This paper applied "actual supply law" to the calculation and analysis of the characteristics of dynamic changes of natural ecological carrying capacity of Hainan province from 1952 to 2004 based on the existing data of Hainan Province Statistical Yearbooks and ecological survey data: ①The natural ecological carrying capacity of Hainan Province has been increasing for a long time,per capita natural ecological carrying capacity increased from 7.0804 ha in 1952 to 8.5984 ha in 2004,an increase of 1.5180 ha and an annual average increasing rate of 0.4%.②The carrying capacity of renewable resource occupied considerable proportion of total ecological carrying capacity,accounting for respectively 98.6% and 92.3%;however,the ecological carrying capacity of un-renewable resource occupied only 1.4% and 7.7% in 1952 and 2004.③The carrying capacity of water resource decreased from per capita 6.8165 ha in 1952 to 0.4473 ha in 2004;but the carrying capacity of arable land,sea sector and freshwater body showed a rising tendency,which increased from 0.1277 ha,0.0057 ha and 0.0001 ha in 1952 to 2.6066 ha,3.1192 ha and 1.1468 ha in 2004,and other types of land ecological carrying capacity kept basically unchanged.④In the composition of the ecological carrying capacity,the proportion of water resources changed significantly from 96.3% in 1952 to 5.2% in 2004 dramatically;but the arable land,sea sector and freshwater body had a reversed remarkable change,respectively from 0.1277 ha,0.0057 ha and 0.0001 ha in 1952 increased to 2.6066 ha,3.1192 ha and 1.1468 ha in 2004,and other types of land showed ascending change but the proportion is relatively small.The arable land,sea sector and water resources are the main factors of the ecological carrying capacity of Hainan,the summation of these three factors occupies 71.8%-98.2%.The paper analyzed the causes of dynamic changes of ecological carrying capacity in Hainan Province.Firstly,the advancement of science and technology and improvement of management level are the fundamental reasons for the continuous increase of ecological carrying capacity in Hainan Province.Secondly,dynamic changes of ecological carrying capacity of all types of land are induced by synthetically factors of nature and society reflected the change of their actual ecological service function.Thirdly,the module amelioration is a key factor reflecting mainly the regional natural ecological carrying capacity.Finally,a pronounced drop of ecological carrying capacity of water resources in Hainan Province has both natural and man-made causes.

• Q148