基于局域空间自相关的吉林省耕地质量空间分布分析

将耕地质量评价的自然等、利用等和经济等作为耕地质量图斑的空间属性,应用局域空间自相关分析方法,对耕地质量空间分布格局进行分析,探讨吉林省耕地质量的空间分布特征,并对耕地质量评价结果的合理性进行探讨。结果表明,吉林省耕地质量整体上表现出显著的聚集性;HH型和LL型表现为正相关的聚集分布;HL型和LH型为负相关的零星分布。最终通过对各种类型的分布特征分析耕地质量评价结果的合理性,为耕地质量评价更新和后续管理提供支持。

Spatial Distribution of Cropland Quality in Jilin Province Based on Local Spatial Auto-correlation

Spatial attributes of cropland patches were set as natural grade,utilization grade and economic grade of cropland quality assessment.With local spatial auto-correlation method,the spatial distribution of cropland quality was analyzed and the characteristic of spatial distribution and the rationality of results of cropland quality assessment were discussed.The results showed that significant aggregation was one of the characteristics of cropland quality of Jilin Province.HH and LL types were positive correlation and the distribution characteristics were aggregated.HL and LH types were negative correlation and the distribution characteristics were scattered.Through analyzing the rationality of the results of cropland quality assessment,the method and the results of this study can be used to support the update assessment and management of cropland quality in the future.