多源地理数据支持下的巴基斯坦冲突风险分析

Conflict Risk Analysis in Pakistan Based on Multi-source Geographic Data

  • 摘要: 随着“一带一路”倡议的不断推进,中国同沿线国家的合作取得了重大进展,然而,部分沿线国家内部各类冲突频发,导致中国企业在“一带一路”的项目投资存在风险和挑战。本研究聚焦于“一带一路”倡议最早合作国之一的巴基斯坦,基于武装冲突地点和事件数据项目(Armed Conflict Location and Event Data Project,ACLED)数据和夜光影像等多源地理数据,分析了2023年巴基斯坦冲突的时空特征,采用极限梯度提升((eXtreme Gradient Boosting,XGBoost)模型来研究夜光、人口和交通等多维因素和冲突之间的关系,并通过SHAP(Shapley Additive Explanations)方法对模型进行解释。结果表明: 2023年,巴基斯坦的冲突分布较为集中,存在7个热点区域,主要分布在开伯尔-普什图赫瓦省、信德省和首都伊斯兰堡,相比其他月份,7月、9月和11月份的冲突热点地区较多;与自然地理因素相比,社会发展因素对巴基斯坦冲突发生的影响更大;人口稠密、交通便利、经济发展不均衡的地区更容易发生冲突。通过引入夜光影像等多源数据,构建了基于地理格网尺度的巴基斯坦冲突模型,深入分析了巴基斯坦冲突主要影响因素,以期为保险公司制定更加精准的项目投资保险方案提供数据支持,帮助中国企业的“一带一路”项目投资和实施顺利开展。

     

    Abstract: Objectives: As the Belt and Road Initiative (BRI) continues to advance, China has made significant progress in cooperation with countries along the BRI route. However, frequent conflicts in these countries pose risks and challenges for Chinese enterprises investing in BRI projects. We focus on Pakistan, one of the initiative's earliest partners, which experienced an increase in conflict events in 2023, accompanied by heightened military involvement, as reported by the ACLED dataset. Methods: First, a binary conflict occurrence variable was constructed from the ACLED dataset, serving as the explained variable. Explanatory variables were derived from a variety of multi-source datasets, including nighttime light (NTL) imagery, population data, and other geographic data, to investigate the underlying factors behind conflict events. Second, the spatial and temporal characteristics of conflicts in Pakistan in 2023 were analyzed using hotspot method. Then, the XGBoost model was applied to explore the relationship between conflict occurrences and various multidimensional factors, such as nighttime light intensity, population density, and transportation infrastructure. The model was further interpreted using the SHAP method from game theory, providing granular insights into the contribution of each variable to conflict occurrences. Results: The results demonstrated that conflicts in Pakistan during 2023 were concentrated in seven distinct hotspot regions, mainly located in Khyber Pakhtunkhwa Province, Sindh Province, and the capital Islamabad. In the temporal dimension, there were more conflict hotspot regions in July, September, and November compared to other months in 2023. Among all variables, social development factors had a greater impact on conflict occurrence than natural geographic factors. The variable "Population" emerged as the most significant contributor to conflict occurrence (15.9%), followed by "Transport" (15.0%), "Traffic" (14.0%), "Gini" (11.3%), "Road" (11.1%), and "NTL" (9.8%). Furthermore, there was a positive relationship between "Population" and conflict occurrence, which means regions with dense populations were more prone to conflicts. Similarly, economic inequality, represented by the Gini coefficient, showed a positive correlation with conflict occurrence, suggesting that areas with uneven economic development were more susceptible to conflicts. In contrast, transportation-related variables (Transport, Traffic, and Road) exhibited a negative relationship with conflict occurrence, meaning that regions well-developed transportation networks, especially transportation hubs, were more prone to conflicts. Conclusions: By incorporating nighttime light imagery and other geographic data, we construct a conflict model for Pakistan at a geospatial grid scale, providing a more nuanced understanding of the key factors influencing conflict occurrence and expanding the existing research on conflict risk analysis in countries along the BRI route. All findings aim to support insurance companies in designing more precise investment insurance policies and to assist Chinese enterprises in successfully investing in and implementing BRI projects.

     

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