机译:从基于遥感的两阶段清单估算森林覆盖率的抽样策略
Consiglio per la ricerca in agricoltura e l’analisi dell’economia agraria-Forestry Research Centre;
University of Siena-Department of Economic and Statistics;
University of Molise-Department of Biosciences and Territory;
Spatially balanced sampling; Auxiliary information;