破碎化背景下滹沱河流域碳储量与生境质量的时空演变特征及交互效应

周正; 刘哲; 赵进勇; 赵录杰; 任志雄; 丁洋; 于子铖; 耿少笛

doi:10.13928/j.cnki.wrahe.2026.09.008

水利水电技术（中英文） ›› 2026, Vol. 57 ›› Issue (9) : 104 -118. DOI: 10.13928/j.cnki.wrahe.2026.09.008

碳中和与清洁能源开发利用专栏

破碎化背景下滹沱河流域碳储量与生境质量的时空演变特征及交互效应

周正 ¹^,² ,
刘哲 ³ ,
赵进勇 ⁴ ,
赵录杰 ³ ,
任志雄 ³ ,
丁洋 ⁴ ,
于子铖 ¹^,² ,
耿少笛 ³

作者信息 +

Spatiotemporal evolution characteristics and interaction effects of carbon storage and habitat quality in Hutuo River Basin under fragmentation

Zheng ZHOU ¹^,² ,
Zhe LIU ³ ,
Jinyong ZHAO ⁴ ,
Lujie ZHAO ³ ,
Zhixiong REN ³ ,
Yang DING ⁴ ,
Zicheng YU ¹^,² ,
Shaodi GENG ³

Author information +

文章历史 +

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摘要

【目的】明晰生态用地破碎化背景下碳储量与生境质量的时空演变特征及交互效应对区域生态系统保护与管理具有重要意义。【方法】以滹沱河流域为研究对象,借助土地利用动态率、土地利用转移矩阵、综合景观破碎化指数,InVEST模型、FRAGSTATS 4.2软件及地理与时间加权回归(GTWR)模型等,定量分析生境质量与碳储量的时空演变特征,并探讨分析与生态土地综合景观破碎化的相关性。【结果】研究表明:(1)2000—2020年,流域生态用地面积呈缩减趋势,生态用地综合景观破碎指数均值波动上升。(2)滹沱河流域生境质量呈下降趋势,从2000年的0.42下降到2020年的0.38。生境质量较优区域主要集中在研究区的中部、西北边缘以及东南部。(3)滹沱河流域的碳储量呈现出逐渐下降的态势,从2000年的320.23×10⁶ t降至2020年的313.81×10⁶ t。(4)生态用地景观破碎化对生境质量与碳储量存在负效应影响,流域生境质量与碳储量相互作用具区域差异,总体正向关联但作用强度与格局分异。【结论】研究结果可为相似流域的生态土地保护、生境质量改善和生态系统恢复提供理论指导。

Abstract

[Objective] Clarifying the spatiotemporal evolution characteristics of carbon storage and habitat quality in the context of ecological land fragmentation, as well as their interaction effects, is crucial for regional ecosystem protection and management.[Methods]Taking the Hutuo River Basin as the research object, the spatiotemporal evolution characteristics of habitat quality and carbon storage were quantitatively analyzed and their correlation with the comprehensive landscape fragmentation index of ecological land was explored by using the land use dynamic rate, land use transfer matrix, comprehensive landscape fragmentation index, In VEST model, FRAGSTATS 4. 2 software, and geographically and temporally weighted regression( GTWR) model. [Results] The result showed that:(1) from 2000 to 2020, the area of ecological land in the river basin showed a decreasing trend, while the mean value of the comprehensive landscape fragmentation index for ecological land increased with fluctuations.(2) The habitat quality in the Hutuo River Basin exhibited a declining trend, dropping from 0. 42 in 2000 to 0. 38 in 2020. Regions with relatively high habitat quality were mainly concentrated in the central part, northwestern edge, and southeastern part of the study area.(3) Carbon storage in the Hutuo River Basin showed a gradual decreasing trend, falling from 320. 23×10⁶ t in 2000 to 313. 81×10⁶ t in 2020.(4) The fragmentation of ecological land had a negative effect on both habitat quality and carbon storage. The interaction between habitat quality and carbon storage exhibited significant regional differences, with an overall positive correlation but variations in the intensity and pattern of the interaction. [Conclusion] The findings can provide theoretical guidance for ecological land protection, habitat quality improvement, and ecosystem restoration in similar river basins.