Sentence examples for harvest levels from inspiring English sources

For example, optimal harvest problems are sometimes framed by setting harvest levels that depend on the abundance of the harvested stock.

Farmers now know how to estimate teak volumes and calculate sustainable harvest levels.

Current annual harvests average around 350,000, well short of required harvest levels.

SWAP found a solution that controlled peak flow while maintaining high timber harvest levels.

"Harvest levels cannot exceed growth if forests are to continue providing healthy fish and wildlife habitats, clean and pure drinking water, and scenic beauty".

Operational considerations, such as minimum harvest levels, can be important, and are considered as constraints in this modeling process.

High harvest levels during this period were partly due to this species' propensity to return and hover above wounded flockmates, making them easy targets for gunners.

In Canada, provincial governments own the timber, set harvest levels, restrict the export of raw logs and set stumpage rates (or cutting fees) according to market conditions.

Sediment yields elevated by harvesting activities typically returned to pre-harvest levels, or declined markedly, within two to six years of harvest (Basher et al. 2011; Fahey and Marden 2006; Phillips et al. 2005).

The reductions in abundances within partial cuts may extend the time necessary for individual populations to increase to pre-harvest levels in partial cuts.

Within 20 years, however, regrowth of the stand returned this metric to pre-harvest levels.