南京林业大学学报（自然科学版）2024，Vol.48Issue(5)：165-172,8.
基于InVEST模型的无锡市生境质量变化研究
Changing features of habitat quality in Wuxi City based on InVEST model
摘要
Abstract
[Objective]Based on 30 m of high-resolution land use data of Wuxi City in 2000,2010 and 2018,the Integrated Valuation of Ecosystem Services and Trade-offs(InVEST)model was used to reveal the changing features of habitat quality in Wuxi.Such information could provide a basis for ecological environment protection and restoration in Wuxi.[Method]Using the InVEST model,the habitat quality and habitat degradation degree of Wuxi during recent 20 years were simulated,and the relationship between the changes of land use,habitat quality and habitat degradation degree was analyzed by using the land use transfer matrix.[Result]In 2018,high-grade habitats in Wuxi accounted for approximately 31.11%of the city.s area,whereas the proportion of general grades was relatively higher,accounting for approximately 40.60%of the city's area.The spatial distribution of habitat quality in Wuxi was various,with the high-grade habitats mainly distributed in Yixing City,Binhu District and other areas,while the low-grade habitats are predominantly located in the main urban area of Wuxi City and Jiangyin City.In the past 20 years,habitat quality in Wuxi has shown a significant degradation trend,of which the main urban areas of Wuxi such as Liangxi District and Jiangyin City have the most obvious degradation,whereas the degradation degree of Yixing City has not changed much.The changes of habitat quality and land use in Wuxi are inseparable,and among them,the construction land of Wuxi increased by approximately 12%from 717.40 km2 in 2000 to 1 291.40 km2 in 2018,and the area with increased construction land and the area where the quality of habitat decline is more obvious have good spatial consistency.[Conclusion]Degradation of habitat quality in Wuxi is closely related to the reduction of cultivated land area and the increase of urban construction land.Therefore,it is necessary to rationally use land,strictly control the scale of construction land,maintain the scale of ecological land use,and continuously improve the protection and restoration of wetlands.关键词
土地利用/生态系统服务和权衡综合评估模型(InVEST模型)/生境质量/生境退化度/建设用地/耕地面积/无锡市Key words
land use/InVEST model/habitat quality/habitat degradation degree/land for construction/cultivated area/Wuxi City分类
农业科技引用本文复制引用
赵晓雨,王益明,何旭,刘小燕,张佳敏,邓懿,冯耀,初磊,张增信..基于InVEST模型的无锡市生境质量变化研究[J].南京林业大学学报（自然科学版）,2024,48(5):165-172,8.基金项目
国家重点研发计划(2019YFC0409004) （2019YFC0409004）
国家自然科学基金项目(41971025) （41971025）
江苏高校优势学科建设工程资助项目(PAPD). （PAPD）
