Climate change has intensified the urgency of effective carbon sink solutions, yet the integration of Information and Communications Technologies (ICT) in these systems remains fragmented despite its transformative potential. This paper provides a comprehensive analysis of ICT applications in carbon sink projects from both economic and engineering perspectives, a dual lens approach rarely explored in the existing literature. In carbon trading, blockchain has improved transaction speed by 40%, while AI-based optimizations have reduced operational costs by 15% in projects such as Petra Nova.Through systematic examination, we identify three key findings: (1) ICT transforms carbon economics through digital financing platforms and blockchain-based trading systems, with AI enhancing price prediction, though data interoperability remains challenging; (2) digital technologies advance both natural and artificial sequestration from forest monitoring to Carbon Capture, Use and Storage (CCUS) optimization, yet lack integrated real-time control solutions; (3) realizing ICT's full potential requires addressing its environmental costs, strengthening policy support, and fostering interdisciplinary collaboration. By bridging the economic engineering divide and mapping current applications alongside future opportunities, this paper demonstrates that deeper integration of digital technologies is essential to scale carbon sink solutions to meet climate targets.

翻译：气候变化加剧了寻求有效碳汇解决方案的紧迫性，然而，尽管信息通信技术（ICT）具有变革性潜力，其在碳汇系统中的整合应用仍处于碎片化状态。本文从经济学和工程学双重视角，对ICT在碳汇项目中的应用进行了全面分析，这一双重视角在现有文献中鲜有探讨。在碳交易领域，区块链技术已使交易速度提升40%，而基于人工智能的优化方案（如Petra Nova项目）则将运营成本降低了15%。通过系统考察，我们得出三项关键发现：（1）ICT通过数字融资平台和基于区块链的交易系统改变了碳经济学，人工智能增强了价格预测能力，但数据互操作性仍是挑战；（2）数字技术从森林监测到碳捕集、利用与封存（CCUS）优化，推动了自然与人工固碳的进步，但尚缺乏集成的实时控制解决方案；（3）充分发挥ICT潜力需解决其环境成本、加强政策支持并促进跨学科协作。通过弥合经济学与工程学之间的鸿沟，梳理当前应用与未来机遇，本文论证了数字技术的深度融合对于扩大碳汇解决方案规模、实现气候目标至关重要。