Sentence examples for permanent sample from inspiring English sources

Data were collected from 438 permanent sample plots re-measured at a 5-year interval.

This information is generally derived from permanent sample plots where individual trees are monitored.

The first cutting treatment of the restoration procedure has been tested in permanent sample plots.

We tested TRIPLEX against age-dependent growth measurements from 12 permanent sample plots (PSP) in jack pine (Pinus banskiana Lamb).

In addition, a permanent sample plot was established by planting seedlings at conventional stem densities (500 1100 stems ha−1).

We used 157 permanent sample plots (PSP), 41 of which originated from fire and 116 were from clear-cuts.

This can be achieved by studies of tree growth in permanent sample plots (prospective studies) and tree ring analyses (retrospective studies).

Trees with a diameter at breast height (DBH) ≥ 5 cm were measured on eight occasions in 41 permanent sample plots of 0.25 ha each.

The models were based on data from one remeasurement of a nation-wide grid of permanent sample plots recorded by the Norwegian National Forest Inventory.

Established methods for measuring carbon in forests exist, and are best based on permanent sample plots laid out in a statistically sound design.

However, the application of these indicators requires repeated inventories at permanent sample plots to establish reference levels against which changes in these indicator variables can be compared.