青海省生态足迹演变分析

利用生态足迹理论与模型,对青海省1978-2001年生态足迹进行了计算与剖析。结果表明,青海省人均生态足迹由1978年的1．127 8 hm2增加至2001年的1．609 2 hm2,同期人均生态承载力由1．920 8 hm2逐年递减至1.332 3 hm2,生态供需由盈余逆转为赤字,说明20世纪90年代青海省生态需求已经超出其生态承载力, 表现为不可持续。最后指出依靠科技进步提高自然生态系统生产力、资源利用率和实现工业的增效减耗是实现青海省可持续发展的重要举措。

Study on the evolvement of Ecological Footprint of Qinghai Province

The ecological footprint and ecological capacity of Qinghai Province from 1978 to 2001 were studied based on the ecological footprint theory and calculation method. The result shows that the ecological footprint per capita displayed an increasing trend from 1. 127 8 hm2 to 1. 609 2 hm2 and the capacity per capita decreasing from 1. 920 8 hm2 to 1. 332 3 hm2 in 1978-2001, so the ecological deficit arising from 1990s' indicated that the development model of Qinghai Province was unsustainable. Moreover, it pointed out that the key Strategies to maintain sustainable development of Qinghai Province are improving ecological productivity and increasing the efficiency of resource use and production and decreasing waste by using advanced science and technology.