Zheng Qihang,Xu Guanglai,Liu Yongting,et al.Assessment and Driving of Habitat Quality in Anhui Province Based on InVEST and MGWR Models[J].Research of Soil and Water Conservation,2024,31(03):373-382.[doi:10.13869/j.cnki.rswc.2024.03.025]
基于InVEST和MGWR模型的安徽省生境质量评估及驱动
- Title:
- Assessment and Driving of Habitat Quality in Anhui Province Based on InVEST and MGWR Models
- 文章编号:
- 1005-3409(2024)03-0373-10
- Keywords:
- habitat quality; MGWR model; InVEST model; driving factor
- 分类号:
- X321
- 文献标志码:
- A
- 摘要:
- [目的]评估安徽省生境质量并研究其驱动机制,以期为安徽省生态环境管理和社会经济可持续高质量发展提供理论参考和科学依据。[方法]以安徽省为研究区,基于InVEST模型对2000年、2010年、2020年生境质量进行评估,并运用热点分析和MGWR模型对影响生境质量空间分布格局的自然—社会经济因子进行分析。[结果](1)2000—2020年安徽省生境质量整体呈现下降趋势,下降率为3.01%,且生境质量较差区分布面积最广。(2)生境质量的空间分布格局呈现“以山地丘陵地区为主的南部和西部高,以耕地和建筑用地为主的北部和中部低”态势,且具有明显的空间集聚性。(3)坡度、NDVI、建筑用地比例和土地垦殖率是影响安徽省生境质量空间分布的关键因子,平均回归系数分别为0.138,0.084,-0.213,-0.557。坡度对生境质量具有正向效应,NDVI对生境质量的影响以正向效应为主,三期正向效应影响面积比例均达到80%以上,建筑用地比例和土地垦殖率对生境质量的负向效应随时间变化分别增强和减弱。[结论]建筑用地比例和土地垦殖率会使生境质量降低,未来应加强土地利用的管理和注重城镇扩张规模。
- Abstract:
- [Objective] The aims of this study are to evaluate the habitat quality in Anhui Province, to explore its driving mechanism, and to provide a theoretical reference and scientific basis for ecological environment management and the sustainable and high-quality development of social economy in Anhui Province. [Methods] In this study, Anhui Province was used as the study area to evaluate habitat quality in 2000, 2010 and 2020 based on the InVEST model. The hot spot analysis and MGWR model were used to analyze the natural and socioeconomic impacts on habitat quality in Anhui Province. [Results] The average habitat quality of Anhui Province showed a downward trend from 2000 to 2020, with a decline rate of 3.01%, and the area of poor habitat quality most widely distributed. The spatial distribution pattern of habitat quality was high level in the south and west of mountainous and hilly areas and low level in the north and central part dominated by arable land and building land. Slope, NDVI, construction land ratio and land reclamation rate were the key factors affecting the spatial distribution of habitat quality in Anhui Province, and the average regression coefficients were 0.138, 0.084,-0.213 and-0.557, respectively. Slope had positive effects on habitat quality, NDVI had positive effects on habitat quality in most regions, the positive proportion of the area in the three phases reached more than 80%, and the negative effects of the proportion of building land and land reclamation rate on habitat quality increased and weakened with time, respectively. [Conclusion] The proportion of building land and land reclamation rate can decrease the habitat quality, so the management of land use and the scale of urban expansion should be strengthened in the future.
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备注/Memo
收稿日期:2023-07-10 修回日期:2023-08-03
资助项目:国家自然科学基金青年项目(41301029); 安徽省自然科学基金(2308085MD113)
第一作者:郑启航(2000—),女,重庆永川人,硕士研究生,主要研究方向为生态系统服务。E-mail:1366201477@qq.com
通信作者:徐光来(1978—),男,安徽无为人,博士,副教授,主要研究方向为水文学与水资源。E-mail:guanglaixu@163.com