Geoecology: County-Level Environmental Data for the United States, 1941-1981

The Geoecology database is a compilation of environmental data for the period 1941 to 1981. The Geoecology database contains selected data on terrain and soils, water resources, forestry, vegetation, agriculture, land use, wildlife, air quality, climate, natural areas, and endangered species. Data on selected human population characteristics are also included to complement the environmental files. Data represent the conterminous United States at the county level. These historical data are provided as a source of 1970s baseline environmental conditions for the United States.

地理生态数据库汇集了1941年至1981年期间的环境数据。该数据库包含了对地形和土壤、水资源、林业、植被、农业、土地利用、野生动物、空气质量、气候、自然区域和濒危物种所选数据的精选。同时，为了补充环境文件，还包括了所选人类人口特征的数据。这些数据以县级行政区为单位，代表了美国大陆地区。这些历史数据提供了1970年代美国环境状况的基准，作为参考资料。