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机译:表征空间变异性的取样策略与表观土壤电导率定向土壤取样的比较
USDA-ARS, U.S. Salinity Laboratory, 450 West Big Springs Road, Riverside, CA 92507-4617, United States;
Riverside Public Utilities-Resource Division, 3435 14th St, Riverside, CA 92501, United States;
Soil Physics and Irrigation, Gilat Research Center, Agricultural Research Organization, Mobile Post Negev 2 85280, Israel;