
1.珠江水文水资源勘测中心,广东 广州 510610
2.水利部珠江水利委员会水文局,广东 广州 510610
3.东江流域水资源与生态环境野外科学观测研究站,广东 惠州 516100
4.华南师范大学,广东 广州 510631
Revised:2026-06-12,
Accepted:16 June 2026,
Online First:29 July 2026,
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胡彩霞,王语尚,翁士创等.2007—2020年东江流域水资源承载力评价分析[J].人民珠江,DOI:10.3969/j.issn.1001-9235.XXXX.XX.001.
HU Caixia,WANG Yushang,WENG Shichuang,et al.Evaluation and Analysis of Water Resources Carrying Capacity in the Dongjiang River Basin from 2007 to 2020[J].PEARL RIVER,
胡彩霞,王语尚,翁士创等.2007—2020年东江流域水资源承载力评价分析[J].人民珠江,DOI:10.3969/j.issn.1001-9235.XXXX.XX.001. DOI:
HU Caixia,WANG Yushang,WENG Shichuang,et al.Evaluation and Analysis of Water Resources Carrying Capacity in the Dongjiang River Basin from 2007 to 2020[J].PEARL RIVER, DOI:10.3969/j.issn.1001-9235...001.
东江流域作为粤港澳大湾区的重要供水来源,其水资源状况直接关系到区域发展。为识别制约其承载能力的关键因素,保障粤港澳大湾区的长期供水稳定,本研究对2007—2020年东江流域水资源承载力进行了综合评价与分析,以期为流域水资源的可持续管理提供参考;以2007—2020年为研究时段,采用DPSIR模型,结合熵权-TOPSIS方法对东江流域水资源承载力进行综合评价分析,并引入障碍度模型深入探索主要制约要素的演变;研究期内东江流域水资源承载力指数介于0.38至0.58,整体呈波动上升趋势,但稳定性较弱。综合分析表明,以P子系统为代表的人类活动用水情况呈改善态势,但R子系统恶化表明人类活动扩张存在显著的生态负面效果,D、S、I等与自然因素相关的子系统更是呈现不稳定波动。结合障碍度分析发现,限制承载力发展的主要障碍已由早期的用水强度过大逐步转变为湿地覆盖率萎缩、人口规模扩张与年降水量年际波动三大因素导致的不稳定变化;据此,东江流域未来水资源管理重点需从加强节水转向生态修复与供需平衡管控,以修复生态系统增强自然缓冲能力,保持流域水资源的长期稳定供给。
The Dongjiang River Basin serves as a critical water supply source for the Guangdong-Hong Kong-Macao Greater Bay Area
and its water resources conditions have direct implications for regional sustainable development. To identify the key constraints limiting water resources carrying capacity (WRCC) in this basin and ensure long-term water supply stability for the Greater Bay Area
a comprehensive evaluation covering the period from 2007 to 2020 was conducted
with the aim of providing an empirical basis for long-term water resources management strategies in the watershed. Using annual data spanning 2007–2020
this study comprehensively evaluated and analyzed the WRCC of the Dongjiang River Basin by integrating the DPSIR (Driver-Pressure-State-Impact-Response) conceptual framework with an entropy-weighted TOPSIS (Technique for Order Preference by Similarity to Ideal Solution) approach. The DPSIR framework was adopted to systematically organize evaluation indicators across five interrelated subsystems
thereby capturing the complex interactions between anthropogenic activities and natural hydrological processes. The entropy weighting method was employed to objectively determine indicator weights based on the information content of observed data
minimizing subjective bias in the composite scoring process. The TOPSIS procedure subsequently assessed annual WRCC performance by calculating each year's relative closeness to an ideal solution. To further diagnose the dominant restricting factors
an obstacle degree model was applied for each year under review
enabling in-depth exploration of the temporal evolution of major constraining factors over the study period. The WRCC index of the Dongjiang River Basin ranged from 0.38 to 0.58 throughout the study period
exhibiting an overall fluctuating upward trend
but with relatively weak stability. Comprehensive analysis revealed an improving trend in human water use as represented by the P subsystem; however
the deterioration of the R subsystem indicated significant negative ecological effects associated with the continued expansion of human activities
while the D
S
and I subsystems associated with natural factors exhibited pronounced unstable fluctuations. Combined obstacle degree analysis found that the primary constraints on carrying capacity development shifted markedly over time — from early dominance by water use intensity indicators toward a pattern of instability driven by three compounding factors: the contraction of wetland coverage
the expansion of population scale
and heightened interannual variability in precipitation.These findings suggest that future water resources governance in the Dongjiang River Basin should strategically reorient its focus from conventional water-saving and demand-side control measures toward an integrated paradigm encompassing ecological restoration and dynamic demand–supply balance regulation
in order to rehabilitate degraded ecosystems
strengthen the basin's natural hydrological buffering capacity
and sustain a stable and reliable long-term water supply under mounting socioeconomic and climatic pressures.
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