俄罗斯油气资源空间分布格局及可达性评估

俄罗斯地区油气资源储量十分丰富,未探明储量的地区也有巨大的资源应用前景。随着气候变化加剧,北极通航变为可能,俄罗斯也寄希望于通过北极航道,大力发展其能源贸易。本文将俄罗斯交通网络作为连接资源和港口的重点,采用空间统计方法刻化俄罗斯油气资源空间分布特征,并通过栅格成本距离法、加权平均旅行时间和区位优势潜力等方法量化各港口对油气资源的可达性,得出结论：① 油气资源集中分布在西西伯利亚平原,俄罗斯全域的港口可达性呈“西部高,中部低”的特征;② 俄罗斯东北地区港口的资源可达性普遍较差,西北地区港口资源可达性较好。综合考虑油气资源、地理位置和项目合作等方面,可重点建设萨别塔、摩尔曼斯克和符拉迪沃斯托克（海参崴）3个港口;③ 附近交通网络的布设密集度影响港口的资源可达性。随着气候变暖,冻土融化,加上中俄“冰上丝绸之路”倡议的逐步实施,未来远东地区港口的资源可达性可能有进一步提升的空间。

Spatial distribution patterns and the accessibility evaluation of oil and gas resources in Russia

Russia is rich in oil, gas resources, and areas with unproven reserves, and also has a huge potential for application of oil and gas resources. As climate change intensifies, it would be possible for navigation in Arctic, and Russia hopes to vigorously develop its energy trade through the Arctic Sea Route. In this study, the Russian transportation network was regarded as the focus of connecting resources and ports, and spatial statistical method was used to describe the spatial distribution characteristics of Russian oil and gas resources. By means of grid cost distance, weighted average travel time and potential location advantage, the accessibility of oil and gas resources in each port was quantified, and the conclusions were drawn as follows. (1) The oil and gas resources were concentrated in the Western Siberian Plain. The accessibility of ports in the whole region of Russia was characterized by "high in the west and low in the middle". (2) The resource accessibility of the northeast port of Russia was generally poor, and the resource accessibility of the northwest port was better than that of the northeast one. Taking oil and gas resources, geographical location and project cooperation into account, we focused on the construction of three ports: Sabetta, Murmansk and Vladivostok. (3) The density of the nearby traffic network affected the resource accessibility of the port. With the climate warming, the melting of frozen soil, and the gradual implementation of the "Polar Silk Road" between China and Russia, it would be possible for further improvement in the resource accessibility of ports in the Far East region of Russia in the future.