Abstract:
Abstract: To explore land use strategies from the perspective of multidimensional coordination of land, population and economy is the key to solving the current urban-rural gap and the contradiction between human and land resources. In this paper, the improved land management scale model was used to measure the rural land pressure in various regions; the logistic model was used to calculate the urban population gap in various regions; and the nodularity index was used to analyze the comprehensive economic development level of each region. The evaluation results were analyzed with KDE and coupling coordination index. The development types were classified according to the results of coordination analysis. Finally, the spatial planning was carried out and development suggestions were proposed. This paper indicates that the suitable land management scale per household in Heilongjiang Province is 11.6 hm2, the surplus agricultural population is 11.02 million, and the total pressure on rural land is 51 478 940 hm2. The urban population carrying capacity of Heilongjiang is 30.31 million, and the urban population gap is 7.89 million. According to KDE analysis, the center of economic development level is located in Daqing City, with a score of 0.877. All KDE centers are located in the west and south of Heilongjiang Province, which shows that the contradiction of development of Heilongjiang Province is concentrated in the west and south. There is a high level of coordination among land, population and economic systems, and formed four different categories. The first categoryis urban-rural coordination model and is classified as an industrial transformation and upgrading zone, including Daqing only. With the depletion of oil resources in the region, we should give full play to its existing financial advantages and find alternative pillar industries in time to cope with the huge transformation pressure faced by the industry. The second category is the agricultural and forestry professional models, which is classified as ecological agricultural development zones, including Daxinganling, Hegang, Heihe, Jixi, Jiamusi, Mudanjiang, Qitaihe, Shuangyashan and Yichun.. The region should actively change the mode of agricultural production and management, promote agricultural industrialization, enrich the development of downstream industries, and make rational use of resources. At the same time, special division of labor and cooperation should be adopted to avoid the competition caused by the homogenization of resource endowments between regions. The third category is the urban-rural gap model only including Harbin, which is classified as urban radiation driven area. Harbin, as a provincial capital city, should give full play to its huge resource advantages to play a role of radiation and promote the development of the whole region. The fourth category is the overall lagging mode, including Qiqihar and Suihua, which is classified as urban-rural composite optimization zones. The region must take industrialization as the key and cultivate large enterprises with strong economic driving capacity to strengthen the economic strength of cities and absorb surplus agricultural population in this way. At the same time, rural areas should increase the intensity of land use, increase economic output per unit area of land, and take a new approach to multiplying agricultural functions, rural industrialization and population urbanization to promote farmers' income.