Selection of Efficient Methods for Soil Sampling

Youden, W. J.; Mehlich, A.

doi:10.2136/sssaj1938.036159950002000c0063x

Cited by 47 publications

(44 citation statements)

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“…The last stage, at the shortest separation distance, contains a residual or unresolved variance considered to be noise (Webster and Oliver 1990). This method of determining the spatial scale over several orders of magnitude was first adapted from classical multistage sampling by Youden and Mehlich (1937). They showed that for a spatial property the stages in the hierarchy could be the distances between sampling points, and the components of variance would represent the amount of variation associated with the range of lag distances.…”

Section: Sampling Methodsmentioning

confidence: 99%

Estimating the Variability of Active‐Layer Thaw Depth in Two Physiographic Regions of Northern Alaska

Gomersall¹,

Hinkel²

2001

Geographical Analysis

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The active layer is the zone above permafrost that experiences seasonal freeze and thaw. Active-layer (0-3 meters) at the Foothills sites, presumably rejecting the infuence of frost boils and tussock vegetation on ground heatfow. In contrast, thaw variation at the Coastal Plain sites occurs at distances exceeding 10 meters, and is attributed to the infuence of welldeveloped networks of ice-wedge polygons and the presence of drained thaw-lake basins. This information was used to determine an ongoing sampling scheme for each site and to assess the suitability of each method of analysis.Global warming is one of the most important issues facing humans in polar regions. The tasks of quantifylng the magnitude of warming to date and predicting likely future temperature trends are complex. It is generally agreed that there has been a warming at high latitudes of 0.3-0.6" C during the last century (Ledley et al. 1999). It This research was supported by grants from the National Science Foundation to KMH (OPP-9529783 and 9732051). The authors are grateful to the Ukpeagvik Inupiat Co oration for administrative assistance and access to the Barrow Environmental Observatory. They gratefug acknowledge the useful remarks of the two anonymous reviewers.Claire E. Gomersall is a graduate student and Kenneth M. Hinkel is a professor of geography at the University of Cincinnati.

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Section: Sampling Methodsmentioning

confidence: 99%

Estimating the Variability of Active‐Layer Thaw Depth in Two Physiographic Regions of Northern Alaska

Gomersall¹,

Hinkel²

2001

Geographical Analysis

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“…In this situation hierarchical spatial scales can be predetermined (de Gruijter and ter Braak, 1990). Besides, the ANOVA approach is more concise (Youden and Mehlich, 1937). Especially when using a so-called unbalanced nested design (see Fig.…”

Section: Spatial Variance and Sampling Theorymentioning

confidence: 99%

Natural and anthropogenic patterns of covariance and spatial variability of minor and trace elements in agricultural topsoil

2005

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“…We used a nested sampling regime at three offsite sampling locations to elucidate the spatial variation of the autochthonous metal concentrations in the soil (Andronikov et al 2000;Lark 2005;Youden and Mehlich 1937). At each offsite sampling location, four primary sampling stations were established 40 m apart.…”

Section: Field Methodsmentioning

confidence: 99%

Soil chemical signatures of a historic sod house: activity area analysis of an arctic semisubterranean structure on Nelson Island, Alaska

Knudson

Frink

2010

Archaeol Anthropol Sci

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Selection of Efficient Methods for Soil Sampling

Cited by 47 publications

References 0 publications

Estimating the Variability of Active‐Layer Thaw Depth in Two Physiographic Regions of Northern Alaska

Estimating the Variability of Active‐Layer Thaw Depth in Two Physiographic Regions of Northern Alaska

Natural and anthropogenic patterns of covariance and spatial variability of minor and trace elements in agricultural topsoil

Soil chemical signatures of a historic sod house: activity area analysis of an arctic semisubterranean structure on Nelson Island, Alaska

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