黑龙江国土资源

黑龙江省作为国家粮食稳产保供的“压舱石”,在国家粮食安全层面具有重要意义。因此，为实现黑龙江省农业农村现代化、推动黑龙江省乡村振兴，探究黑龙江省乡村人-地-业系统耦合发展及其驱动力意义重大。本文以黑龙江省域为研究对象，综合运用耦合度及耦合协调度测算，分析黑龙江省耦合类型及耦合协调度等级的时空演变特征，并利用地理探测器识别其驱动因素。研究结果如下：(1)从整体来看，2016—2020年黑龙江省乡村人-地-业系统耦合度及耦合协调度的测算结果与运动趋势基本保持一致。其乡村三个子系统的耦合类型均处于磨合阶段，耦合协调度等级均处于拮据阶段，波动不显著。(2)空间差异显示，各市乡村人-地-业系统耦合度及耦合协调度差异较明显，大致呈现出北高南低的态势；耦合发展水平以哈尔滨市为中心，向边缘城市递增；耦合协调度在濒临失调与勉强协调之间反复波动。(3)从驱动因子来看，单一因子与交互因子对乡村三个子系统耦合发展解释力的强弱有较大差异，其中乡村从业人员占比(X2)与乡村人口密度(X3)作为单一因子或交互因子都表现出较强的解释力，且交互因子驱动力大于单一因子驱动力；所有交互作用类型聚焦于双因子增强与非线性增强。黑龙江省各市乡村人-地-业系统耦合发展是多因素共同作用的结果，优化人口结构、提高土地利用效率和农业科技水平等措施是增强其耦合动力及全面促进乡村振兴的重要路径。

Heilongjiang Province, as the “ballast stone” of stable grain production and supply, is of great significance in national food security. Therefore, in order to realize agricultural and rural modernization and promote rural revitalization in Heilongjiang Province, it is of great significance to explore the coupling development of rural population-land-industry system and its driving force. Taking Heilongjiang province as the research object, this paper comprehensively used coupling degree and coupling coordination degree estimation to analyze the spatial-temporal evolution characteristics of coupling types and coupling coordination degree levels in Heilongjiang Province, and identified their driving factors by using geographic detectors. The research results are shown as follows:(1) On the whole, the results of coupling degree and coupling coordination degree of rural population-land-industry system in Heilongjiang Province from 2016 to 2020 are basically consistent with the movement trend. The coupling types of the three subsystems are all in the running-in stage, and the coupling coordination degree is in the lean stage, and the fluctuation is not significant.(2) The spatial difference shows that the coupling degree and coupling coordination degree of rural population-land-industry system in different cities and villages are obviously different, showing a trend of higher in the north and lower in the south; The coupling development level takes Harbin as the center and increases to the edge cities. The degree of coupling coordination fluctuates between borderline dissonance and forced coordination.(3) From the perspective of driving factors, the explanatory power of single factor and interactive factor to the coupling development of the three rural subsystems is relatively different. Among them, the proportion of rural employees(X2) and rural population density(X3), as a single factor or interactive factor, both show strong explanatory power, and the driving force of interactive factor is greater than that of single factor. All interaction types focus on two-factor enhancement and nonlinear enhancement. The coupled development of rural population-land-industry system in the cities of Heilongjiang Province is the result of the joint action of many factors, and measures, such as optimizing the population structure, improving the efficiency of land use and the level of agricultural science and technology, are important paths to enhance the coupling dynamics and promote the revitalization of the countryside in an all-round way.