Study on sampling design for monitoring cultivated land quality at a county scale (Journal of agricultural resources and environment, 2020)
Keywords: Agricultural engineering; Agricultural land; Agriculture; Classification; Cultivated lands; Cultivation; Ditches; Environmental factors; Environmental monitoring; Land use; Landforms; Natural resources; Quality; Quality standards; Sampling; Sampling designs; Soils; Spatial distribution; Statistical methods; Statistical tests; Statistics; Technical services; Beijing China; China