TY - GEN AU - Scull,P AU - Okin,G S TI - Sampling challenges posed by continental-scale soil landscape modeling SN - 0048-9697 PY - 2007///0315 KW - Environment Design KW - Environmental Monitoring KW - methods KW - Models, Theoretical KW - Random Allocation KW - Selection Bias KW - Soil KW - analysis KW - United States N1 - Publication Type: Journal Article UR - https://doi.org/10.1016/j.scitotenv.2006.10.013 ER -