| 汪勇政,梁哲,余浩然.中部快速城镇化地区生境质量时空演变及影响因素研究[J].安徽建筑大学学报,2022,30(): |
| 中部快速城镇化地区生境质量时空演变及影响因素研究 |
| Study on the Temporal and Spatial Evolution and Influencing Factors of Habitat Quality in the Rapidly Urbanized Area of Central China |
| 投稿时间：2021-08-30 修订日期：2021-10-18 |
| DOI： |
| 中文关键词: InVEST模型 生境质量 快速城镇化地区 OLS模型 SEM模型 |
| 英文关键词: InVEST model habitat quality rapid urbanization area OLS model SEM model |
| 基金项目:国家自然科学基金项目（面上项目，重点项目，重大项目） |
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| 中文摘要: |
| 探究中部快速城镇化地区的生境质量时空变化以及影响因素对构建区域生态安全格局，揭示人类活动对该地区生态环境的影响程度，为维持区域可持续发展提供科学参考。本文以典型中部快速城镇化地区为研究区，基于InVEST模型和空间计量模型综合评价其2000-2020年期间的生境质量的时空演变与变化原因，结果如下：（1）合肥都市圈生境质量出现明显的空间分异现象，生境质量较好的用地构成为林地、草地、水域；较差区域用地中城乡建设用地扩展最为明显，耕地次之；2010-2020年期间出现了生境质量的恶化速度趋于缓和的现象，且最终20年间呈现出“慢—快—慢”的下降趋势；（2）在空间布局特征上，该地区生境质量具有较为显著的梯度效应，山区生境质量高于丘陵、平原地区；（3）从景观格局指数与城镇化两个角度选取影响因子，发现近20年来城镇化指标对合肥都市圈这一阶段生境质量的均为负向效应，景观格局指数对于生境质量表现出正相关。合肥都市圈整体生境质量的变化剧烈程度与其周边城镇化速率有关，具有一定的空间聚集性，平原地区变化程度相较于山区更加剧烈，呈现一定的梯度效应。本研究可为区域生态保护规划和类似区域研究提供科学参考。 |
| 英文摘要: |
| Explore the temporal and spatial changes of the habitat quality in the rapid urbanization areas of central China and the driving mechanism to construct the regional ecological security pattern, reveal the extent of the impact of human activities on the regional ecological environment, and provide a scientific reference for maintaining regional sustainable development. This paper takes a typical rapid urbanization area in central China as the research area. It comprehensively evaluates the temporal and spatial evolution and the reasons for the change of habitat quality during 2000-2020 based on the InVEST model and the spatial measurement model. The results show that: (1) The Hefei metropolitan area's habitat quality has apparent spatial differentiation. The land with better habitat quality is composed of woodland, grassland, and water; the expansion of urban and rural construction land is the most obvious in the more impoverished area, followed by cultivated land, 2010 -During 2020, there was a phenomenon that the degradation rate of habitat quality tended to ease, and finally showed a "slow-fast-slow" downward trend; (2) In terms of spatial layout characteristics, the area's habitat quality has a relatively significant gradient. The quality of habitat in mountainous areas is higher than that in hills and plains; (3) Selecting influencing factors from the perspective of landscape pattern index and urbanization, and it is found that the urbanization indicators in the past 20 years have adverse effects on the habitat quality of the Hefei metropolitan area at this stage. The landscape pattern index shows a positive correlation with the quality of habitat. The degree of change in the overall ecological environment of the Hefei metropolitan area is related to the rate of urbanization in its surroundings, and it has a specific spatial agglomeration. The degree of change in the immediate area is more drastic than in the mountainous area, showing a specific gradient effect. This research can provide scientific reference for regional environmental protection planning and similar regional research. |
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