| 太原市生态系统服务时空变化及其驱动因素 |
| 摘要点击 1047 全文点击 115 投稿时间：2024-04-02 修订日期：2024-05-23 |
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| 中文关键词 生态系统服务（ESs） 时空变化 土地利用 InVEST模型 地理探测器 太原市 |
| 英文关键词 ecosystem services （ESs） spatiotemporal changes land use InVEST model geodetector Taiyuan City |
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| 中文摘要 |
| 为探究太原市生态系统服务（ESs）时空变化与成因,以2000~2020年5期土地利用数据为基础,选取6项ESs指标,收集多源数据借助InVEST模型与修正通用土壤流失方程（RUSLE）等评估ESs,使用斯皮尔曼（Spearman）相关性分析ESs间权衡协同关系,依靠地理探测器探究驱动因素.结果表明：①太原市土地利用类型以草地、林地和耕地为主,2000~2020年建设用地扩张170.1 km2,林地增加404.6 km2,水域增加61.3 km2,耕地和草地减少.较多耕地向草地、草地向林地转移. ②ESs总体提高,碳储量、氧气释放、土壤保持量和水质净化能力提升,生境质量先升后降,食物供给能力下降. ③各项ESs间主要呈协同关系,碳储量与生境质量和水质净化呈权衡关系,且随时间推移弱化.土地利用类型、高程和气温是ESs的重要驱动因素,坡度对土壤保持、人类活动对食物供给和降水量对水质净化影响较大.研究结果可为太原市生态保护与可持续发展提供依据. |
| 英文摘要 |
| To investigate the spatial and temporal changes and causes of ecosystem services （ESs） in Taiyuan City, six ESs indicators were selected based on five periods of land use data from 2000 to 2020, while ESs were assessed using multi-source data with the help of the InVEST model and the revised universal soil loss equation （RUSLE）. Further, the Spearman correlation coefficient was used to analyze trade-offs and synergies among ESs. Finally, geodetectors were used to explore the driving factors. The results showed that： ① Land use types in Taiyuan City were dominated by grassland, forest, and arable land, with construction land expanding by 170.1 km2, forest area increasing by 404.6 km2, and water area increasing by 61.3 km2 simultaneously arable land and grassland decreasing from 2000 to 2020. A notable transfer of arable land to grassland and grassland to forest had occurred. ② ESs increased overall； carbon stock, oxygen release, soil retention, and water purification increased； habitat quality first increased and then decreased； and food provision decreased. ③ There was mainly a synergistic relationship between ESs. Carbon stock, habitat quality, and water purification were trade-offs and weakened over time. Land use/cover change （LUCC）, elevation （DEM）, and temperature were important drivers of ESs. A significant impact of slope on soil retention, anthropogenic activities on food provision, and precipitation on water purification was observed. The results of this study provide scientific basis for ecological protection and sustainable development in Taiyuan City. |
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