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Evaluation of conditioned Latin hypercube sampling for soil mapping based on a machine learning method
Conditioned Latin hypercube sampling Soil mapping Representativeness Sample randomness
2024/1/12
Sampling design plays an important role in soil survey and soil mapping. Conditioned Latin hypercube sampling (cLHS) has been proven as an efficient sampling strategy and used widely in digital soil m...
Efficiency of sector sampling for estimating juniper forest attributes vs. fixed area plot
accuracy crown cover density precision plot shape
2018/3/6
Juniper forests grow in mountain areas and many difficulties are encountered in their sampling. Sector sampling as
an unbiased and cost-effective method was tested for the sampling of a 12.5-ha junip...
Estimating red deer abundance using the pellet-based distance sampling method
cervidae distance sampling deer density pellet group counting rural areas
2015/11/26
Many European agricultural landscapes have been abandoned facilitating the comeback of large ungulates. In Portugal, the increase in red deer numbers caused local conflicts with landowners reporting e...
Efficiency of adaptive cluster sampling and traditional sampling for coastal mangrove in Hainan of China
adaptive cluster sampling Horvitz-Thompson estimator Hansen-Hurwitz estimator simple random sampling systematic sampling
2015/4/14
Based on two species of Coastal Mangrove in Hainan of China, Sonneratia Apetala Buch-Ham and Sonneratia caseoli, we estimated the density of the two species to evaluate the efficiency of adaptive clus...
Linking ecologically based productivity information to timber supply analysis units using site series sampling
allowable annual cut analysis units ecological site series long-term harvesting level site index
2009/2/5
Timber supply analyses are used to estimate the possible harvest level of timber volume over the long term. Site index is one of the inputs of these analyses. When site index is underestimated, as is ...
Striking a balance：Safe sampling of partial stem cross-sections in British Columbia
cambial scars fire history partial sections safety criteria sampling procedures wildlife trees
2009/1/9
Dating cambial injury on a tree is an important objective of ecological research that determines the timing of disturbances such as fire, insect outbreaks, tree falls, or human modification of trees. ...