It is impossible to count all the plants in a habitat, so a sample is taken. A quadrat is often used to sample plants. It marks off an exact area so that the plants in that area can be identified and ...

These are placed on the ground to look at the plants or slow-moving animals within them. When looking at plants in a quadrat, the following sampling can be used: Random close randomOccurring without a ...

An exact expression is derived for the two-sample jackknife estimate of the simple matching coefficient and the Jaccard index of similarity when quadrat sampling procedures are used. The jackknife ...

Abstract: Forest vertical structure is critical to ecological function, and provides a crucial link to air- and spaceborne remote sensing (including LiDAR), but is difficult to measure from the ground ...