Surface Drainage-Main or Lateral on Agricultural Land in the Conterminous United States, 1992: National Resource Inventory Conservation Practice 608

This data set represents the estimated percentage of the 1-km grid cell that is covered by or subject to the agricultural conservation practice (CP608), Surface...本数据集表征了1公里栅格单元（1-km grid cell）被农业保护措施（CP608，Surface...）覆盖或受其约束的估算占比。