Sentence examples for stands must be from inspiring English sources
Timber stands must be felled and regenerated in an orderly sequence to meet continuing industrial demands.
Because of the limited avian diversity in pure jack pine stands, sufficient mixed-wood stands must be regenerated to sustain populations of characteristic bird species.
The practical conclusion that can be drawn from this study is that the density of birch and pine stands is not critically important for understorey development but spruce stands must be sparse for fast understory height increment.
The results show that this hypothesis, at least as it currently stands, must be rejected.
The loss of live carbon after thinning in naturally-regenerating stands must be considered in calculating carbon sequestration estimates for young-growth forests.
Free stands must be weighed down to prevent movement during use.
"What we're really concerned about is how limited the resources and the scope of the investigations as they currently stand must be, because they are being investigated locally," Thomas said.
In addition to the general framework, a specific provision requiring a presidential candidate to have the support of 30 members of the lower house of parliament or municipal mayors, which would give representatives of the old regime a say in determining who can stand, must be abolished before the presidential election is held.
A fire-killed stand must be considered within its ecological and landscape context to determine the probable success of a management action such as salvage and tree regeneration.
Still, he said, "If the evidence proves to be correct, then a very firm stand must be taken".
