贵州喀斯特山地碳足迹和植被碳承载力动态研究

发布时间：2018-05-05 23:48

  本文选题：碳足迹 + 碳承载能力　； 参考：《生态经济》2016年02期

【摘要】：为了解贵州喀斯特山地碳排放与碳固定的平衡状况及其动态变化规律。利用2002~2012年贵州省能源消费量及植被面积等数据,通过构建数量模型,分析碳足迹、植被碳承载力和碳生态压力指数等指标的动态变化规律。研究结果表明:贵州省碳足迹总量由2002年的12 643.66万吨上升到2012年的35 153.63万吨,增长幅度为278.03%,年均增长16.18%,其中化石能源消费的碳足迹占总碳足迹的84.35%~93.78%,表明化石能源消费是导致碳足迹增长的主要因素。同期植被碳承载力从2002年的8988.83万吨上升到2012年的15 032.65万吨,增长幅度为67.24%,年均增长6.11%,其中森林固碳量76.94%~85.63%,园地固碳量占11.79%~21.00%,农作物仅占1.90%~3.48%,揭示森林的固碳量最高。2002~2012年碳赤字呈现出上升的趋势,由2002年的3654.83万吨上升到2012年的20 120.98万吨;碳生态压力指数由2002年的1.41上升到2012年的2.34,而单位GDP碳足迹表现出下降的趋势,从2002年的10.17吨/万元下降到2012年的5.13吨/万元。分析结果表明贵州在碳减排方面的政策措施有一定成效,但碳排放与碳固定之间不平衡,碳循环的生态环境压力有持续增加的趋势。
[Abstract]:In order to understand the balance of carbon emission and carbon fixation and its dynamic change in Guizhou karst mountain area. Based on the data of energy consumption and vegetation area in Guizhou Province from 2002 to 2012, the dynamic change rules of carbon footprint, vegetation carbon carrying capacity and carbon ecological pressure index were analyzed by building a quantitative model. The results show that the total carbon footprint of Guizhou Province increased from 12 6.4366 million tons in 2002 to 35 1.5363 million tons in 2012. The growth range is 278.03, and the average annual increase is 16.18. The carbon footprint of fossil energy consumption accounts for 84.35 / 93.78 of the total carbon footprint, indicating that fossil energy consumption is the main factor leading to the increase of carbon footprint. During the same period, the carbon carrying capacity of vegetation increased from 89.8883 million tons in 2002 to 15 326500 tons in 2012. The increase range is 67.240.The average annual increase is 6.110.The forest carbon sequestration is 76.940.85.63. the forest carbon sequestration accounts for 11.790.21.00, and the crops only account for 1.900.3.48. it is revealed that the carbon sequestration deficit of the forest from 2002 to 2012 shows an upward trend, rising from 36.5483 million tons in 2002 to 201.2098 million tons in 2012; The carbon ecological pressure index increased from 1.41 in 2002 to 2.34 in 2012, while the carbon footprint per unit GDP showed a downward trend, from 10.17 tons / 10,000 yuan in 2002 to 5.13 tons / 10,000 yuan in 2012. The results show that the policies and measures on carbon emission reduction in Guizhou have some achievements, but the carbon emissions and carbon fixation are unbalanced, and the pressure on the ecological environment of carbon cycle is increasing continuously.
【作者单位】： 贵州财经大学管理学院;
【基金】：2014年度贵州省教育厅高校人文社会科学基地项目(2014JD102) 国家社会科学基金项目(12BJL085)
【分类号】：X22
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本文编号：1849791