基于生态足迹的广东省化石能源用地定量研究与分析

以生态足迹模型为基础,通过分析森林和草原生态系统在碳循环过程中的碳蓄积能力(NEP),计算了广东省1990—2007年化石能源消费的生态足迹,并对广东省化石能源生态足迹的产值和生态压力进行了分析,提出了相应的对策。结果表明,广东在20世纪90年代至2007年的经济快速发展过程中,化石能源占地面积总量由6398.21×103hm2增长到18340.74×103hm2;能源消费对生态环境的压力呈不断增加趋势,由1990年的0.57上升至2007年的1.64。以煤炭为主的能源消费结构正逐步改善,能源利用效率和经济价值不断提高。煤炭生态足迹由1990年的66%下降至2007年的45%,化石能源产值2.43万元/hm2增长至16.95万元/hm2。

Quantitative research and analysis of supply to fossil energy land of Guangdong province based on ecological footprint

By analyzing the capacity of carbon accumulation of forest and grassland (NEP), this paper computes the carbon ecological footprint of fossil energy from 1990 to 2007,and analyses the result though production ratio and ecological pressure intensity of fossil energy. At end of the paper some recommendations were also mentioned. The result shows that the carbon ecological footprint of fossil energy increased from 6 398.21×10~3 hm~2 in 1990 to 18 340.74×10~3 hm~2 in 2007 and the ecological pressure intensity of fossil energy increased from 0.57 to 1.64 during this period. Coal-based energy consumption structure is being improved gradually and energy efficiency and economic value is rising continuously. The coal ecological footprint dropped from 66% in 1990 to 45% in 2007. And during the same period the production of ratio of fossil energy increased from 2.43× 10~4yuan/hm~2 to 16.95×10~4yuan / hm~2.