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Comprehensive assessment on the ecological stress of rapid land urbanization per proportion, intensity, and location
Ecosystem Health and Sustainability ( IF 4.2 ) Pub Date : 2019-11-19 , DOI: 10.1080/20964129.2019.1686954
Pingxing Li 1, 2 , Hui Cao 1
Affiliation  

Aiming at assessing the ecological stress of land urbanization comprehensively, three perspectives are considered and combined, i.e. the amount effect with the proportion of construction lands as the indicator, the intensity effect per the density of environmental pollutant emissions, and the location effect based on their spatial distribution in the heterogeneous landscape. The quantitative results of Southern Jiangsu case in Eastern China show the single-perspective ecological stress are spatially different; the proportion effect is higher in city propers which are more densely populated and industrialized. However, the intensity effect is more significant for units along the Yangtze river where heavy industries are gathered, while the location effect is higher in “ecologically suitable” regions. As the integration of proportion, intensity, and location effects, the comprehensive stress differs across Southern Jiangsu and are also different with the single-perspective results. Dominant stressors of each unit are spatially distinct, which benefits policy-makers in targeting their objectives as per primary influencing factors. It is concluded that the comprehensive assessment could efficiently reveal the spatial differentiation of the ecological effects of land urbanization and also the differentiated role of different factors for each unit.



中文翻译:

按比例,强度和位置综合评估快速土地城市化的生态压力

为了全面评估土地城市化的生态压力,考虑并结合了三个观点,即以建设用地比例为指标的数量效应,每单位环境污染物排放密度的强度效应以及基于它们的位置效应。异质景观中的空间分布。华东苏南案例的定量结果表明,单视角生态压力在空间上是不同的。在人口密集和工业化程度较高的城市居民中,比例效应较高。然而,对于长江沿岸聚集重工业的单位来说,强度效应更为显着,而在“生态适宜”的地区中,区位效应更高。作为比例,强度的整合,受位置和位置的影响,苏南地区的综合应力有所不同,单视角结果也有所不同。每个单元的主要压力源在空间上是不同的,这使决策者可以根据主要影响因素来确定目标。结论是,综合评价可以有效揭示土地城市化生态效应的空间差异性,以及不同因素对每个单元的不同作用。

更新日期:2019-11-19
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