1:250000 Animal Husbandry Spatial Dataset in Helen City (1980)

a. Data content (data file/table name, including observation index content) Data File Name: 1:250000 Animal Husbandry Spatial Dataset in Helen City (1980) Main content: HlHusbanry1980.shp b. Construction purpose This dataset mainly provides data support for the study of the evolution and degradation process of black soil quality. c. Service object Students and researchers engaged in research on agricultural ecology and animal husbandry. d. Time range of data The data source was in 1980 and was produced in 2006. e. The spatial range and projection method of data Space scope: Hailun City, Heilongjiang Province