Cultivated land protection zoning and feature automatic induction and obstacle factor diagnosis method

The invention discloses a cultivated land protection zoning and feature automatic induction and obstacle factor diagnosis method, and belongs to the technical field of agricultural engineering. In order to solve the problem that the existing cultivated land quality zoning scheme is divided according to administrative division and a local space self-correlation method, zoning cannot be carried out according to objective conditions of cultivated land, and the similarity difference of land in the same partition is large possibly. The features and the obstacle factors in the partitions are not extracted based on cultivated land with similar features, so that the problem that the extracted obstacle factors are greatly different from the actual situation exists. According to a pre-established cultivated land quality evaluation index system, firstly, cultivated land quality evaluation index data of a typical sample plot in a research area is obtained, sampling units in the research area are clustered, a plurality of