Abstract: The benefit of cultivated land use is closely connected with the land management models. Based on the data on the cultivated land use of the reclamation area and rural area in western Heilongjiang Province from 2006 to 2015, the evaluation index system of the cultivated land use was constructed to measure the economic-social-ecological benefits of cultivated land use by the entropy method. Based on the coupling coordination degree model, the coupling phases and coordination types were divided to make the comparative analysis on the benefit differences in cultivated land use between the reclamation areas and rural areas in western Heilongjiang Province. The results are given as follows. 1) The benefits of cultivated land use in the reclamation areas slowly increased from 2006 to 2015, while the benefits fluctuated and declined in the rural areas. The economic and social benefits were higher than the ecological benefits in both the reclamation areas and rural areas. 2) In 2015, the economic, social, and comprehensive benefits of cultivated land use in the reclamation areas were higher than in the rural areas, while the ecological benefits in the reclamation areas were lower than in the rural areas. The coupling degrees among the economic, social, and ecological benefits in both the reclamation and rural areas showed rivalries. The coordination degrees in the reclamation areas were relatively coordinate, while in the slight disorder in the rural areas. 3) Different land management models led to differences in the benefit of cultivated land use between these two types of areas. In the process of utilizing the cultivated land, it is suggested to explore land management models and to emphasize the coordinated development among the economic, social, and ecological benefits.

Key words: benefit of cultivated land use, land management, reclamation area, rural area