Study On Sustainable Development In Liling Based On The Eco-economics View

Along with the fast going of industrialization and the rapid developing of social economy, a series of problems took place, such as population increasing, resource exhausting, environment pollution, ecologe destroying, and so on, which influented the living and threatened the surviving and developing of the human being. Therefore, it has being paid attention in the internation society since the concept of sustainable development was bought forward. During the recent 50 years, affected by the global change and the artificial disturbing, the eco-environment there worsen continuously. All above destroyed eco-environment, restricted sustainable development of the study area.Land use is the most direct mode of the human being affecting nature, and is the base for QSSD. According to the main eco-environmental problems in Liling, taking land use as the entrance point for studying, by open out the characteristics and rules of the spatial-tempral change of land use from 1990 and 2008, the influence was discussed. The study indicated that the land use of Liling changed obviously, which can be described as the phenomenon of two increasing and four decreasing.That is, increasing of woodland and construction land,decreasing of plantation,garden plot,land unused and water area.From the view point of value, the author applied the eco-economic model to the evaluation the service value of the ecosystem in Liling city. The results showed that during the 18 years of 1990 to 2008, the ecosystem value was reduced from 45.12×108Yuan to 42.52×108Yuan, the economic and the societr value was ascend from 9.37×108Yuan and 5.96×108Yuan to 156.64×108 Yuan and 64.95×108Yuan. The study indicated that to maintain the ecosystem service was the base of the sustainable development the decreasing of ESV was the drawback, which was the currency embodiment of the destroy of ecosystem service.Ecological footprint was used to quantitatively study on the sustainable development. The study showed that the ecological surplus was 0.2564 hm2 in 1990, in sustainable state, while the ecological deficit was 0.5357hm2 in 2008, in unsustainable state, The study indicated that the decrease of the sustainability of Liling city mainly owed to the artificial disturbing factor besides the vulnerable ecosystem. The phenomenon that rapid development of economy and industrialization were both based on the consuming of local natural resource, and the construction land was increased influenced the supply amount of ecological service, accordingly brought about huge pressure to the eco-environment, and produced big amount of ecological deficit.