Sentence examples for two thinnings from inspiring English sources

Typically, one to two thinnings are undertaken during a rotation and depending on the size of felled trees these are classed as either pre-commercial or commercial thinnings.

Two thinnings were used in alternatives 1 4 since it has been found that additional thinnings no longer increase the net present value when stand management is optimized without simulating ingrowth (e.g., Pukkala 2006).

All species except the planted one were removed in the tending treatment of the young stand; two thinnings were conducted during the rotation; at most 40% of stand basal area could be removed in thinning; thinnings were conducted as low thinning.

Two thinning operations were carried out in both trials aimed at optimising the value of saw-timber and veneer log production at clearfelling and were based on standard thinning regimes for the species planted, planting density and different site productivities.

The mortality data for this study come from two thinning experiments, one in Compartment 3 and the other in Compartment 12 of the Liu-kuei Experimental Forest (longitude 120° 42′ 51″, latitude 23° 00′ 14″) of the Taiwan Forestry Research Institute (Kaohsiung City), which is in a mountainous area of south-central Taiwan.

All birches that were left in young stand tending were removed in the first commercial thinning and pines were gradually removed in the first three thinnings.

Over the years we have had three thinnings and the timber was sold.

The programme uses a Microsoft Excel© spreadsheet1 to set up the input data for a particular stand and sequence of harvests, which may involve up to five thinnings before the final clear-felling.

Additionally, construction of new skidding trails and vegetation recovery was simulated on five thinning-based scenarios that covered a 40-month test period (July 2010 October 201313).

Watch the video below for all six thinning hair edges tips.

This was caused by the optimal thinning regimes in which two low thinnings were limited in Pukkala (2011), while the present study allows more frequent thinnings and more flexible thinning types that led to longer rotation.