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刘 畅,谭梓柔,张晓彤,孙小雅,郄雨欣,陈 硕,刘 琳.2000—2020年黄河下游河岸带生态系统服务价值与碳储分析水资源与水工程学报[J].,2024,35(1):90-100
2000—2020年黄河下游河岸带生态系统服务价值与碳储分析
Ecosystem service value and carbon storage of the riparian zone in the lower Yellow River from 2000 to 2020
  
DOI:10.11705/j.issn.1672-643X.2024.01.11
中文关键词:  生态系统服务价值  碳储量  河岸带  生态功能  黄河下游
英文关键词:ecosystem service value(ESV)  carbon storage  riparian zone  ecological function  lower Yellow River
基金项目:国家自然科学基金项目(41907055)
作者单位
刘 畅,谭梓柔,张晓彤,孙小雅,郄雨欣,陈 硕,刘 琳 (山东师范大学 地理与环境学院 山东 济南 250358) 
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中文摘要:
      为了促进黄河下游生态脆弱河岸带土地资源的合理配置,助力河岸带生态可持续发展,采用野外调查、ArcGIS、InVEST模型、当量因子法等方法,通过分析2000—2020年黄河下游河岸带土地利用动态变化,揭示其生态系统服务总价值(ESV)和碳储量(Ct)的变化。结果表明:2000—2020年黄河下游河岸带湿地和建设用地面积持续增加,湿地主要来源于耕地和水域,建设用地主要来源于耕地;耕地和建设用地面积占比随着距河道距离的增大而增大,而草地面积占比随着距河道距离的增大而减小,林地面积占比随河道距离变化不明显,2000—2010年湿地面积占比随河道距离减少,而2010—2020年远岸湿地增加,且主要位于距河道200~500 m区间。2000—2020年,黄河下游河岸带ESV呈先增加后减少的变化趋势。其中,水域对ESV的贡献率最大,湿地次之,耕地、林地和草地的贡献率低,且不稳定。2000—2020年,黄河下游河岸带碳储量逐渐提高,湿地碳储量逐渐上升,然而林地、草地和水域碳汇能力则先增加后降低。水沙状况、人类活动以及国家政策是影响黄河下游河岸带生态系统服务价值与碳储量的重要因素。为减缓黄河下游人为调水调沙引发的河岸带生态功能减退,亟待提升湿地质量,适当退耕还林、还草和还水,以提高河岸带生态系统的服务价值和碳储量。
英文摘要:
      Rational allocation of land resources can facilitate ecological sustainable development of the ecologically vulnerable riparian zone in the lower Yellow River. Here, we investigated the dynamic changes of land use, ecosystem service value (ESV) and carbon storage (Ct) of the riparian zone in the lower Yellow River from 2000 to 2020 by means of field investigation, ArcGIS, InVEST model and equivalent factor method. The results show that the area of wetland and construction land in the riparian zone of the lower Yellow River continued to increase from 2000 to 2020, of which the additional wetland mainly came from cultivated land and water area, and the additional construction land mainly came from cultivated land. The proportion of cultivated land and construction land increased with the increase of the distance from the river, whereas the proportion of grassland was on the contrary,which decreased with the increase of the distance from the river and the proportion of woodland didn’t change significantly with the distance from the river. From 2000 to 2010,the proportion of wetland decreased with the distance from the river,while the far shore wetland increased from 2010 to 2020,mainly located in the range from 200 to 500 m away from the river. The ESV of the riparian zone in the lower Yellow River first increased and then decreased from 2000 to 2020. Among the land use types,water area had the most significant impact on the ESV, followed by wetland,and the contribution rate of cultivated land,woodland and grassland was lower and unstable. As for the carbon storage,it increased gradually as a whole during the study period,among which the carbon storage of wetland increased gradually, whereas the carbon sequestration capacity of woodland,grassland and water area increased first and then decreased. Water and sediment conditions,human activities and national policies are all influencing factors of ecosystem service value and carbon storage of the riparian zone in the lower Yellow River. To address the weakening of ecological function of the riparian zone caused by human activities of water and sediment transport in the lower Yellow River,it is of great significance to improve the quality of wetland and encourage the conversion from cultivated land to woodland,grassland and water area,so as to enhance the ecosystem service value and carbon storage of the riparian zone.
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