Forest resource analysis method and system based on forestry ecological big data

The invention relates to the technical field of forest resource analysis, in particular to a forest resource analysis method and system based on forestry ecological big data. The method comprises the following steps: acquiring forestry ecological data; mapping the forestry ecological data to a unified tensor space through tensor algebra, and performing adaptive trade-off fusion and vector data integration based on spatial-temporal characteristics to obtain multi-source complementary vector data; high-dimensional feature extraction is carried out on the multi-source complementary vector data, so that high-dimensional feature spatial data are constructed, and high-dimensional features comprise individual tree features and forest stand texture features; performing dimension reduction on the high-dimensional feature space data through a topological data analysis technology to obtain a fractal crown matrix; and mapping the fractal crown matrix to a low-dimensional continuous vector space, and performing forest sta