基于多尺度融合的岷江流域国土空间资源环境承载力评价
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F205

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四川省科技计划项目“国土空间生态修复关键技术研究”(2021YFS0279)


Evaluation of Carrying Capacity of Territorial Space Resources and Environment With Multi-scale Integration in Minjiang River Basin
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    摘要:

    [目的] 进行基于多尺度融合的流域国土空间资源环境承载力评价研究,为后续有针对性地开展国土空间格局优化打下基础,也为流域的可持续发展提供科学依据和参考,促进资源和环境的协调发展。[方法] 以岷江流域为例,从国土空间的多功能性特征与内涵出发,构建多尺度的国土空间资源环境承载力评价体系,并通过应用改进后的多尺度融合模型,对2000,2010和2020年3期研究断面的评价结果进行微观细部分析。[结果] ①长期以来,流域整体生态承载力(CCE)多数在中等水平,生活承载力(CCL)多数在中等及以下,生产承载力(CCP)以低等级为主,造成综合承载力(CCC)以较低等级为主且无高等级; ②研究期内,所有承载力的较低等级区域均有所扩张:CCE多发生在流域中部与东南部,CCL在流域上、中、下游均有发生,CCP多发生在双流西部、南部与仁寿县,CCC多发生在汶川县、蒲江县、井研县等地; ③岷江上游具有高CCE、低CCL和CCP的原因应归结于受到了地势地貌条件与社会经济水平所带来的双重影响,而成都主城区在社会经济高质量发展的推动下取得了突出水平的CCL,CCP和CCC并得以长期稳定保持。[结论] 岷江流域在自然本底条件和社会经济水平方面存在巨大的区域差异,造成各地区承载力水平不一,阻碍实现地区间协调均衡发展。坚持推进高质量发展,调动省会成都的溢出效应与辐射作用,有利于提升承载力等级,缩小地区差距,带动流域整体协同发展。

    Abstract:

    [Objective] The evaluation of carrying capacity of territorial space resources and environment in watersheds were studied based on multi scale fusion in order to provide scientific basis and reference for the sustainable development of the basin, and promote the coordinated development of resources and environment. [Methods] Using the Minjiang River basin as an example and considering the multifunctional characteristics and connotations of territorial spatial resources, we established a multi-scale evaluation system for territorial spatial resources and environmental carrying capacity. By applying an improved multiscale integration model, this study conducted a detailed micro-analysis of the evaluation results for research cross-sections from the years 2000, 2010, and 2020. [Results] ① Over the long term, the overall ecological carrying capacity (CCE) of the basin has mostly been at a medium level. The living carrying capacity (CCL) has generally been at a medium level or below, while the production carrying capacity (CCP) has predominantly been at a very low level. Consequently, the comprehensive carrying capacity (CCC) has mainly been at a low level, with no instances of a very high level. ② During the study period, the regions with low levels of all carrying capacities expanded. The expansion of CCE mostly occurred in the middle and southeast of the basin; the expansion of CCL occurred in the upper, middle, and lower reaches of the basin; the expansion of CCP mostly occurred in the western and southern parts of Shuangliu and Renshou; and the expansion of CCC mostly occurred in Wenchuan, Pujiang, and Jingyan. ③ The high CCE and low CCL and CCP in the upper reaches of the Minjiang River can be attributed to the combined effects of topographical conditions and socioeconomic levels. In contrast, Chengdu’s central urban area has achieved outstanding levels of CCL, CCP, and CCC, driven by high-quality socioeconomic development, and has maintained these levels over the long term. [Conclusion] The Minjiang River Basin exhibits significant regional differences in natural conditions and socioeconomic levels, resulting in varying levels of carrying capacity across different areas and hindering coordinated and balanced regional development. Persistently promoting high-quality development and leveraging the spillover and radiative effects of Chengdu City, the provincial capital, will help enhance the carrying capacity levels, reduce regional disparities, and drive overall coordinated development across the basin.

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王格,周子祺,夏建国,欧定华,费建波,龚顺娅,向玉潇.基于多尺度融合的岷江流域国土空间资源环境承载力评价[J].水土保持通报,2024,43(5):152-161,233

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  • 收稿日期:2023-12-20
  • 最后修改日期:2024-06-25
  • 在线发布日期: 2024-11-02