| The massive ecological danger and environmental debt induced by human being unreasonably exploiting the natural resource for a long time have not only restricted the development of economy, but also become a threat toward the development of society and economy at present and in the future. Therefore, person began to attention to the ecological security problems. Ecological security is close to the humanity survives in the future. The regional ecological security is the premise and foundation of regional sustainable development. Therefore, the study of the regional ecological security has become the hot and important spot of the development of the ecological environment protection.Ecological footprint analytical method, as measurement for sustainable development, The amount of ecological footprint reflects human demand and ecological capacity reflects supply of the environment, evaluation on sustainable development of a certain area was made by comparing the ecological demand with supply.The paper explored and carried out the application of ecological footprint theory and method on the regional aspect, introducd the concept of ecological footprint as well as related theories and the calculation method, and selected Huangshui River Basin at Qinghai Province for research. The ecological footprint of Huangshui River Basin at Qinghai Province from 2000 to 2005 was calculated, analyzed the temporal dynamic of ecological footprint and at last evaluated the sustainability of ecological footprint on regional sustainable development.The paper consists of seven parts. Firstly, ecological footprint was proposed based on the theory of sustainable development, and research background was summarized. Secondly, Huangshui River Basin at Qinghai Province was introduced from some aspects. The third, the concept, related theories, calculation method and research dynamics of ecological footprint were introduced. Mostly, the theory and practice of ecological footprint analytical method in recent years are explained detailedly. The fourth, Using the data on the statistical annual books of Qinghai Province(2000-2005), the author established the ecological account of Huangshui River Basin and calculated the ecological footprint and ecological capacity during 2000-2005. The results showed that ecological footprint increased from 1.4265 hm~2/per in 2000 to 1.6596 hm~2/per in 2005, at meantime, ecological capacity decreased from 0.9827 hm~2/per to 0.9301hm~2/per, ecological deficit increased from 0.4438hm~2/per to 0.7295hm~2/per. The fifth, the differentiations of ecological footprints from 2000 to 2005 was analyzed and compared. Finally, the paper propose some measures of slowing down the ecological footprint, improving ecological carrying capacity and increasing the ecological security.Based on above-mentioned calculation, the paper got following meaningful conclusions.(1) The per capita ecological footprint was gradually increased from 1.4265hm2 in 2000 to 1.6596hm2 in 2005, its rise ratio is 16.3%. Ecological footprint after 5 years will raise up to 1.8278 hm~2 /per keeping current consumption model.(2) The per capita ecological carrying capacity was decreased from 1.1168hm~2 in 2000 to 1.0569hm2 in 2005 , its reduction ratio is 18.3% and down to 0.8846 hm~2 /per after 5 years.(3) The per capita ecological deficit was increased from 0.4438hm~2 in 2000 to 0.7295hm2 in 2005, its rise ratio is 18.3% and up to 0.9432 hm~2 /per after 5 years.(4) The ecological tension index was increased from 1.45 in 2000 to 1.78 in 2005, its rise ratio is 23.0% and up to 2.07 after 5years.(5) The ecological footprint demand for ten thousand yuan GDP of this basin was decreased from 2.7023hm~2/ 10~4 yuan in 2000 to 2.2156hm~2/10~4 yuan in 2005.(6) The variety index of ecological footprint was increased from 1.03 in 2000 to 1.29 in 2005. This forecast index will get 1.54 after 5years.(7) The calculation result also indicates that there is great future in Huangshui River basin from 2000 to 2005, even for ever.The innovation of this paper are: (1) Taking Huangshui river bain at Qinghai Province as an example, the paper calculated and analyzed ecological footprint, ecological carrying capacity, ecology surplus, ecological footprint pressure index, and the ecological footprint demand for ten thousand yuan GDP of this basin.(2) Supporting by GIS, the image in 2002 of huangshui river basin was disposed by ERDAS. Using the Arc/info to interpret, obtain the date of land utilization.(3) Ecological footprint and ecological deficit in huangshui river basin from 2000 to 2005 are calculated and forecasted in this paper by means of the variety index of ecological footprint model and its calculation method. |
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