基于三维生态足迹模型扩展的土地承载力指数研究——以温州市为例

发布时间：2018-01-31 20:42

本文关键词： 三维生态足迹模型足迹深度扩展土地承载力评价　出处：《生态学报》2017年09期 　论文类型：期刊论文

【摘要】：生态足迹模型是土地承载力评价的重要方法。通过将Niccolucci三维生态足迹模型中足迹深度的取值范围从大于等于1扩展到大于等于0,将生态盈余状态的分析纳入一个统一的三维模型框架,实现了自然资源消费对资源流量和资源存量占用程度在核算上的统一。以温州市为例,运用扩展后的三维模型计算了2000—2012年间温州市的生态足迹、足迹深度、生态赤字(盈余)。在此基础上,引入粮食压力指数、水资源压力指数、碳汇压力指数、建设压力指数和土地综合负担指数等土地承载力评价指数,判断当前市域土地是否处于超载状态,以及超载程度。研究结果表明:2000—2012年间,温州市人均生态足迹从整体生呈逐年上升的趋势,人均生态生产性土地面积基本保持不变,生态赤字严重且逐年上升,温州市土地承担着巨大压力;2000—2012年间温州市足迹深度在4—6之间,自然资源流量远远不能满足自然资源需求,需要消耗大量的自然资源存量来支撑当前的发展和消费;温州市粮食压力指数、水资源压力指数、碳汇压力指数、土地综合压力指数均大于1,耕地、水域、林地均处于超载状态,且自2000年以来,温州市土地所承载的自然资源消费压力是其承载能力的4倍以上。
[Abstract]:Ecological footprint model is an important method of land carrying capacity evaluation. By extending the range of footprint depth in Niccolucci three-dimensional ecological footprint model from greater than or equal to 1 to greater than or equal to 0. The analysis of ecological surplus state is brought into a unified three-dimensional model frame, which realizes the unity of natural resource consumption on the accounting of resource flow and resource stock occupation degree. Take Wenzhou as an example. The ecological footprint, footprint depth and ecological deficit of Wenzhou from 2000 to 2012 were calculated by using the expanded three-dimensional model. On this basis, the grain pressure index and water pressure index were introduced. Carbon sink pressure index, construction pressure index and land comprehensive burden index and other land carrying capacity evaluation index to determine whether the current urban land is overloaded. And the degree of overload. The results show that the per capita ecological footprint of Wenzhou from 2000 to 2012 is increasing year by year, and the per capita ecological productive land area is basically unchanged. The ecological deficit is serious and rising year by year. From 2000 to 2012, the footprint depth of Wenzhou is between 4-6, the flow of natural resources is far from meeting the demand of natural resources, and it needs to consume a large amount of natural resources to support the current development and consumption. The grain pressure index, water resource pressure index, carbon sink pressure index and land comprehensive pressure index of Wenzhou City are all more than 1. The cultivated land, water area and woodland are all overloaded, and since 2000. The natural resource consumption pressure of Wenzhou land is more than 4 times of its carrying capacity.
【作者单位】：浙江大学土地与国家发展研究院;
【基金】：国家自然科学基金项目(71273226)
【分类号】：F301.2;X826
【正文快照】： 人类对土地承载力的认识,最早可以追溯到史前畜牧部落的生产实践[1]。到了近代,随着西方学界提出了“人地关系论”、“地理决定论”和“人口论”等理论议题,对土地承载力的认识从生产实践提升到了理论概念的高度。到20世纪,尤其是二战结束后,学界对土地承载力的概念做了明确的

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