| Along with the tremendous exchange of substance and energy between human system and ecosystems, a series of environmental issues took place,which restricted the development of social economy,became a big challenge that all the human beings had to be faced with.Sustainable development had been driven from concept to action by the publication of《Declaration on the Human Environment》、《Declaration on the Environment and Development》and《Agenda 21》.To implement the strategy of sustainable development, we must first make it operable;to achieve this goal,we must make sure whether the development is sustainable and whether the environment is safe.Currently,many scholars are committed to the quantification of the extent of sustainable development and they have also made some substantial evaluation methods and index system,among which the Ecological Footprint(EF) analysis is a case in point.In this method,the pressure of the ecological resources caused by the human development and the carrying capacity of the natural resources are respectively calculated from the aspects of demand and supply,and thus the states of the ecological security and the sustainable development of the research object can be evaluated through the comparison of the pressure and the carrying capacity.This method has scientific sound theoretical basis,clear conceptual framework and simple and coherent index system,so that it is easy to operate.On the basis of summing up the study results of EF at home and abroad and according to the actual situation of Luojiang Region,According to production and consumption characteristics of Luojiang Region,a basic database of EF is established;the time sequential EF and the Ecological Capacity(EC)are calculated and the results were compared.The author calculated the long-time series EF of Luojiang Region from 2000 to 2005 to avoid the shortcomings of static indexes.Meanwhile,the ecological security situations of arable land、pasture land、forest land、water area and built-up area etc.were evaluated respectively.This paper combined EF indexes with the traditional economic indexes,measured the ecological coordination coefficient,EF diversity index,development capacity and EF perunit of GDP and finally forecasted the related indexes.Located in the northeast of Quanzhou City.Luojiang Region has 382km~2 and 170940 populations. With the development of economy,The natural resources become poorer and poorer.Owing to the irrational exploitation and utilization of natural resources in the area,grassland has been degraded, waters and wetlands have shrunk.Regional environmental quality has gradually degraded,ecological security has been threatened and the ability of the environment to support socio-economic development has been gradually weakened,all of which greatly hampered the potential capability of agricultural production and the sustainable development of society.Meanwhile,with the improvement of the people’s living standard,the per capita consumption of natural resources will rapidly increase,its ecological situation is faced with more challenges.In order to provide a substantial scientific basis for regional decision-making and planning for Luojiang Region,it is imperative to quantitatively measure the utilization of natural resources and ecological security standard.By using EF analysis,the author estimates the Luojiang Region’s EF from 2000 to 2005,and also does a pilot study on ecological security. |
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