基于InVEST&GEO-detectors模型的会仙湿地生境质量变化及影响因素研究

doi:10.16088/j.issn.1001-6600.2022071204

摘要/Abstract

摘要： 喀斯特湿地是广泛分布在喀斯特地区的一种特殊的湿地类型,其生态地位举足轻重,探索喀斯特湿地生境质量变化的影响因素对喀斯特地区生态建设具有重要的意义。本文基于会仙湿地保护区2000和2020年的土地利用数据,通过InVEST模型评估会仙湿地保护区的生境质量,利用地理探测器探测影响会仙湿地保护区生境质量变化的自然和人为因素。研究结果表明:1)研究区2000至2020年建设用地明显扩张,草地和水体显著减少;2)会仙湿地保护区生境质量总体呈现下降的趋势,生境退化度有所上升,生境质量较差的区域主要集中在研究区的北部、中部和东北部;3)地理探测器识别出会仙湿地保护区生境质量空间变化受自然和人为因子的综合作用,主导影响因子是GDP(q为0.135),其次为夜间灯光指数(DMSP)(q为0.053);交互作用探测结果表明,各因子对生境质量影响呈现出双因子增强效果。研究结果有助于揭示会仙湿地保护区生境质量的时空演变过程,可针对会仙湿地生态建设的问题提出可行的应对策略。

关键词: 生境质量, InVEST模型, 地理探测器, 时空变化, 影响因素, 会仙湿地

Abstract: Karst wetland plays an important ecological role in karst area, which is widely distributed in karst area. It is of great significance to explore the influencing factors of habitat quality change in karst wetland for ecological construction in karst area. The data used in this study were the land use data of Huixian Wetland Reserve in 2000 and 2020. The InVEST model was used to assess the habitat quality of the Huixian Wetland Reserve, and the geographic detector was employed to detect the influencing factors of habitat quality change in the Huixian Wetland Reserve. The results showed that:1) The construction land in the study area expanded significantly from 2000 to 2020, while the grassland and water area decreased significantly. 2)The habitat quality of the Huixian Wetland Reserve showed an overall decreasing trend, and the degree of habitat degradation had increased, with the areas of poor habitat quality mainly concentrated in the northern, central and northeastern parts of the study area. 3)The results of factor detection and interaction detection showed that changes in habitat quality in the Huixian Wetland Reserve were influenced by both natural and anthropogenic factors, with the anthropogenic factor being the dominant influence factor GDP (q of 0.135), followed by the nighttime light index (DMSP) (q of 0.053). The interaction detection results showed that the interaction of any two factors was greater than the sum of the effects of two single factors, showing a two-factor enhancement effect. The results are helpful to reveal the spatio-temporal evolution process of habitat quality in Huixian Wetland Reserve, and to put forward feasible strategies for ecological construction in Huixian Wetland Reserve.

Key words: habitat quality, InVEST model, geo-detector, spatio-temporal change, influence factor, Huixian Wetland Reserve

中图分类号: X37; X87; X82

谢玲, 陈展图, 蒋瑜, 肖小慧, 贾艳红. 基于InVEST&GEO-detectors模型的会仙湿地生境质量变化及影响因素研究[J]. 广西师范大学学报（自然科学版）, 2023, 41(5): 180-190.

XIE Ling, CHEN Zhantu, JIANG Yu, XIAO Xiaohui, JIA Yanhong. Habitat Quality Changes and Influencing Factors in Huixian Wetland Based on InVEST&GEO-detectors Model[J]. Journal of Guangxi Normal University(Natural Science Edition), 2023, 41(5): 180-190.

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