基于三维生态足迹模型的流域自然资本动态评估——以福建省九龙江流域为例

发布时间：2018-01-27 14:14

本文关键词： 生态足迹三维模型自然资本可持续性九龙江流域　出处：《资源科学》2017年05期 　论文类型：期刊论文

【摘要】：自然资本评估是研究区域生态系统平衡及可持续发展的重要方法。文章基于三维生态足迹模型,核算了2000-2015年九龙江流域不同地类及区域人均足迹深度、足迹广度和三维生态足迹,并通过资本流量占用率和存量流量利用比等指标,详细分析了区域自然资本流量、自然资本存量的占用情况及不同地类之间的差异。结果表明:(1)九龙江流域人均足迹深度由2.34增加至4.33,足迹广度由0.463hm2/人增加至0.655hm2/人,三维生态足迹由1.08hm2/人不断扩大至2.84hm2/人,说明区域自然资本流量占用逐渐增大,自然资本存量消耗快速上升,生态系统资源供给压力加剧;(2)不同地类自然资本利用差异显著,除林、草地外,其它用地从2011年开始均处于生态赤字状态;其中,化石能源用地需求增加最快,是区域生态足迹加速上升的最主要原因;(3)促进九龙江流域可持续发展在于增加资本流量限度、减少资本存量消耗,为此需要倡导节约型消费、加大耕地资源保护力度、科学规划建设用地规模、提高能源利用效率等。
[Abstract]:Natural capital assessment is an important method to study the balance and sustainable development of regional ecosystem. The per capita footprint depth, footprint breadth and three dimensional ecological footprint of different land types and regions in Jiulong River Basin from 2000 to 2015 were calculated, and the utilization rate of capital flow and the utilization ratio of stock flow were used. The regional natural capital flow, the occupation of natural capital stock and the differences among different land types are analyzed in detail. The results show that the per capita footprint depth of Jiulong River basin increases from 2.34 to 4.33. The footprint breadth increased from 0.463hm2to 0.655hm2 / person, and the three-dimensional ecological footprint expanded from 1.08hm2to 2.84hm2 / person. It shows that the occupation of regional natural capital flow increases gradually, the consumption of natural capital stock increases rapidly, and the pressure of supply of ecosystem resources intensifies. (2) the utilization of natural capital of different land types is significantly different, except forest and grassland, the other land use has been in the state of ecological deficit since 2011; Among them, the demand for fossil energy land increases fastest, which is the main reason for the accelerated rise of the regional ecological footprint. 3) promoting the sustainable development of Jiulong River basin lies in increasing the limit of capital flow and reducing the consumption of capital stock. Therefore, it is necessary to advocate saving consumption, strengthen the protection of cultivated land resources, and scientifically plan the scale of construction land. Improve the efficiency of energy use, etc.
【作者单位】：中国科学院城市环境与健康重点实验室中国科学院城市环境研究所;中国科学院大学;厦门市城市代谢重点实验室;
【基金】：国家自然科学基金项目(41371535,41690142) 福建省科技计划项目引导性项目(2015Y0082)
【分类号】：F205;X22
【正文快照】： 1引言为定量研究自然资本的禀赋以及评估区域经济社会发展的可持续性,20世纪80年代专家学者们提出自然资本核算这一概念,并进行了大量研究[1-4]。在此背景下,生态经济学家Rees于1992年提出生态足迹的概念[5]。生态足迹方法为人类了解自然资源的利用状况、评估区域发展可持续性

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