Research on source-sink matching of carbon storage sites in Ningxia Hui Autonomous Region based on environmental risks

YANG Lingxue; XU Xiaoyi; MA Jing; YANG Chuanfeng; WANG Nan; CHENG Guoqiang; LIU Guizhen; LI Fengyang; HU Ting; XU Zonghong; JING Meng; LI Qi

doi:10.13205/j.hjgc.202510029

Volume 43 Issue 10

Oct. 2025

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Article Navigation > ENVIRONMENTAL ENGINEERING > 2025 > 43(10): 264-274

YANG Lingxue, XU Xiaoyi, MA Jing, YANG Chuanfeng, WANG Nan, CHENG Guoqiang, LIU Guizhen, LI Fengyang, HU Ting, XU Zonghong, JING Meng, LI Qi. Research on source-sink matching of carbon storage sites in Ningxia Hui Autonomous Region based on environmental risks[J]. ENVIRONMENTAL ENGINEERING , 2025, 43(10): 264-274. doi: 10.13205/j.hjgc.202510029

Citation:

YANG Lingxue, XU Xiaoyi, MA Jing, YANG Chuanfeng, WANG Nan, CHENG Guoqiang, LIU Guizhen, LI Fengyang, HU Ting, XU Zonghong, JING Meng, LI Qi. Research on source-sink matching of carbon storage sites in Ningxia Hui Autonomous Region based on environmental risks[J]. ENVIRONMENTAL ENGINEERING , 2025, 43(10): 264-274. doi: 10.13205/j.hjgc.202510029

Citation:

YANG Lingxue, XU Xiaoyi, MA Jing, YANG Chuanfeng, WANG Nan, CHENG Guoqiang, LIU Guizhen, LI Fengyang, HU Ting, XU Zonghong, JING Meng, LI Qi. Research on source-sink matching of carbon storage sites in Ningxia Hui Autonomous Region based on environmental risks[J]. ENVIRONMENTAL ENGINEERING , 2025, 43(10): 264-274. doi: 10.13205/j.hjgc.202510029

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Research on source-sink matching of carbon storage sites in Ningxia Hui Autonomous Region based on environmental risks

doi: 10.13205/j.hjgc.202510029

1. Institute of Hydrogeology and Environmental Geology of Ningxia Hui Autonomous Region, Yinchuan 750011, China;
2. State Key Laboratory of Geomechanics and Geotechnical Engineering, Institute of Rock and Soil Mechanics, Chinese Academy of Sciences, Wuhan 430071, China

Received Date: 2023-09-20
Accepted Date: 2023-11-29
Rev Recd Date: 2023-11-02

Available Online: 2025-12-03

Publish Date: 2025-10-01

Abstract

Abstract

Geological carbon dioxide （CO₂） storage， as an indispensable key technology for realizing carbon neutrality goals， enables near-zero emissions of CO₂ from fossil fuel utilization. However， the prominent issue for geological CO₂ storage is the uncertainty of environmental safety. From the perspective of minimizing environmental impacts， deploying a priority development strategy for geological CO₂ storage is a core issue of concern to decision-makers. The current proportion of fossil fuel consumption， carbon intensity， and per capita carbon emissions in the Ningxia Hui Autonomous Region are all among the top in the country. Conducting research and evaluation on the environmental optimization site selection of geological CO₂ storage in Ningxia will provide important references for the development of CCUS technology in Ningxia. This study comprehensively and systematically selected ecological and environmental indicators， took into account the prohibitive elements and obvious restrictive elements， and constructed an evaluation index system and model for environmental optimization site selection of CO₂ geological storage in Ningxia. The environmental suitability of geological CO₂ storage was determined based on the minimum values of each index factor. Additionally， the least-cost path analysis （LCPA） method was employed to assess point-to-point source-sink matching between CO₂ emission sources and geological storage sinks in Ningxia. The suitability evaluation results showed that the Ordos Basin exhibited the highest environmental suitability for geological CO₂ storage， with over 38.8% of its area classified as "more suitable" or "suitable"； the Liupan Mountain Basin ranked second in suitability， with 6.0% of its area classified as "more suitable" or "suitable"， while the Yinchuan Basin showed a poor degree of suitability， with 92.5% of its area deemed unsuitable. The source-sink matching results showed that there were minor variations when considering different environmental suitability levels， the overall matching conditions in the Ordos Basin were relatively favorable.
- carbon neutrality,
- CCUS,
- environmental optimization,
- site selection evaluation,
- source-sink matching,
- geological CO₂ storage

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References(36)

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