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Published on: July 3, 2020
[Impact of natural capital utilization on high-quality development in Henan Province based on three-dimensional
Ye-Ning Wang1, Xiao-Lei Zhang1, Bao-Sheng Wang2,3
1Institute of Geographical Sciences, Henan Academy of Sciences, Zhengzhou 450052, China.
Abstract:
Quantitative assessment of the correlation between natural capital utilization and high-quality development in Henan Province is of great significance for ecological protection and high-quality development in the Yellow River Basin. We constructed high-quality development index (HQD) and used it to quantify the development of each city in Henan Province based on the new development philosophy. We further employed the extended three-dimensional ecological footprint model to evaluate natural capital utilization. Spatiotemporal evolution of HQD and natural capital utilization during 2005-2023 was analyzed, and their correlation was further explored using the decoupling index and threshold regression model. Results showed that there was significant heterogeneity in HQD and each dimension scores across all the cities in Henan. Overall, HQD in western Henan was higher than that in eastern Henan, presenting a multi-layered decreasing pattern centered on Zhengzhou. Zhengzhou had the highest annual average HQD of 0.55, while the HQD value of Jiyuan was the lowest (0.22). All the 18 cities had the highest scores in coordination dimension and the lowest in innovation dimension. The maximum ecological footprint size (EFsize) was 2.64×106 hm2 in Zhoukou, and Jiyuan recorded the minimum of 1.80×105 hm2. Cropland, grassland, and construction land contributed substantially to EFsize, with the proportion of contribution from construction land increasing over time. Ecological footprint depth (EFdepth) of Xuchang reached a maximum of 8.68 while the minimum was 4.12 in Xinyang. Cropland and grassland accounted for relatively high proportions of EFdepth, while construction land made the smallest contribution. The relationship between HQD and EFsize in each city exhibited a significant inverted 'U'-shaped curve, with the inflection point of multi-year average HQD at 0.43. HQD and EFdepth in the three cities of Luohe, Sanmenxia, and Xinyang showed a weak decoupling relationship, while the remaining 15 cities showed a strong decoupling during 2005-2023. The first-order lag term of HQD exerted a significant positive impact on current HQD. Both EFsize and EFdepth played a positive role in promoting HQD improvement, with a nonlinear trend of weakening from a strong initial state.
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