Potential analysis of reserve cultivated land resources in the Far Eastern Russia

Food security is an important part of the United Nations Sustainable Development Goals (SDGs).In addition to increasing the yield per unit area, in-depth understanding the potential of reserve arable land resources has important practical significance for ensuring global food security.Northeast Asia is a relatively slow-developed region in the middle and high latitudes, but with a high potential for reserve arable land resources.This article selected suitability evaluation indicators in three aspects: terrain, climate, and soil, and constructed suitability evaluation system for the reserve cultivated land in the Far East Russia.We used a comprehensive quantitative scoring and weighting method combined with a research method of extreme conditions to analyze and evaluate the Far Eastern Russia.The results showed that: (1) The total area of suitable reserved arable land was 8×10⁴ km², which was mainly distributed in 6 administrative regions in the southern part of the Far Eastern Russia, and accounted for 51.7% of the evaluation area.The reserved arable land area in Khabarovsk Krai was relatively large.(2) Suitable areas for reserve arable land were relatively concentrated and mainly in the southern and southwestern parts of the evaluation area bordering China.The overall suitability of reserve arable land resources in the Far Eastern Russia was relatively high.The analysis of the potential of reserve arable land resources in the Far Eastern Russia provides an important reference value for developing relevant strategies of China's grain import trade.