珠江三角洲地区生态足迹分析

Analysis of Ecological Footprints in Zhujiang Delta

利用生态足迹方法对珠江三角洲地区9个地市自然资本的供需状况进行了分析,结果表明珠江三角洲地区的整体生态足迹需求为1.5403 hm2/人,三角洲整体及9市人均生态足迹需求高于全国平均水平,对化石燃料的需求占总生态足迹需求的72.67%,位居第一位.珠江三角洲生态足迹供给量最少的地区为佛山、东莞和广州.珠江三角洲地区及9市均存在生态赤字,珠江三角洲人均尚需要生态足迹1.14 hm2/人.具有多种较高生态服务功能的耕地、草地、水域和化石燃料废气(CO2)吸收用地的供给均远远小于需求,包括林地在内的生物生产用地正在以较高的速度流失.受工业化程度的影响,化石燃料的供需状况是影响各地区生态赤字的关键因素.

The analysis of the supplying and demanding status of natural capital for Zhujiang Delta and its 9 cities was made with ecological footprint method. The results showed that the whole demanding of ecological footprints is 1. 5403 hm^2/person and the average demanding of ecological footprints of the whole region and its 9 cities is higher than that of whole country. The requirement on fossil-fuel is the top one and takes up 72.67% of ecological demanding. The regions with most poor supply in Zhujiang Delta are Foshan, Dongguan and Guangzhou. The whole delta and its 9 cities have ecological deficit. 1.14 hm^2 ecological footprint is needed for each person. The supplies of the lands with better ecological service function such as farmland, grassland, water bodies and land for absorbing exhaust gas of fossil-fuel （CO2） are great smaller than requirement, the biological production lands including forests are losing with rapid speed. Influenced by industrialization, the supply and requirement status of fossil-fuel is the key factor for influencing regional ecological footprints.