The paper advocates the use of a statistical tool dedicated to the exploration of data samples populated by several sources of events. This new technique, called s Plot, is able to unfold the contributions of the different sources to the distribution of a data sample in a given variable. The s Plot tool applies in the context of a Likelihood fit which is performed on the data sample to determin...

Applications of unmanned aircraft systems (UASs) to assist in forest inventories have provided promising results in biomass estimation for different forest types. Recent studies demonstrating use of different types of remotely sensed data to assist in biomass estimation have shown that accuracy and precision of estimates are influenced by the size of field sample plots used to obtain reference ...

The paper advocates the use of a statistical tool dedicated to the exploration of data samples populated by several sources of events. This new technique, called s Plot, is able to unfold the contributions of the different sources to the distribution of a data sample in a given variable. The s Plot tool applies in the context of a Likelihood fit which is performed on the data sample to determin...

A strip plot graphs one dimensional data by displaying each sample point as a point on a one dimensional axis. The main difficulties with this technique is (i) when several samples have identical values they will be printed on top of each other, and (ii) in the case of a large sample the graph will become overly crowded and less informative. The two ways to alleviate these difficulties are: (a)...

We investigated the effect of plot-based and unrestricted (plot-less) sampling on an inventory of amegadiverse taxon, spiders, in an Afrotropical forest for the purpose of species richness estimates. We also investigated the efÞciency of human-based sampling methods and the effect of allocation of sampling effort to different samplingmethods to cover asmanymicrohabitats as possible. In the 10-d...

In this study, we aimed to assess how sample sizes affect confidence of stand-scale transpiration (E) estimates calculated from sap flux (F(d)) and sapwood area (A(S_tree)) measurements of individual trees. In a Japanese cypress plantation, we measured F(d) and A(S_tree) in all trees (n = 58) within a 20 x 20 m study plot, which was divided into four 10 x 10 subplots. We calculated E from stand...

The assessment of the quantitative and qualitative changes, the result of the impacts imposed by natural factors, and human interventions during specific sampling periods has a substantial influence on nature, management method and tending operation of every region’s forests. The present research was carried out in Golestan province forests (Iran) over an 11- year period and the obtained statis...

A permanent sample plot (PSP) data set was enumerated from primary forest in Jambi province, Indonesia. No silvicultural treatment (harvesting, thinning, poisoning) was applied to the plot during the period in which measurements were taken. The data set including individual tree information such as tree identity, diameter and position within the plot, was input into the Sustainable Yield Manage...