Difference between revisions of "Test"
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| − | [[Release date::2013-03- | + | [[Release date::2013-03-11]] |
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==Summary== | ==Summary== | ||
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==Improvements == | ==Improvements == | ||
| − | *A sufficient criteria for a stand to be classified as a conifer stand has been 500 conifer trees per ha. The reason for this is that there may be many decidous trees during the young phase of a conifer stand, so even if the dominant species may be deciduous, the main crop species is usually the conifer species and a larger proprtion of the deciduous trees removed in cleanings and thinnings. This is important since the dominant species is used when setting minimum final felling age (if the regeneration species is unknown, see below), and the minimum final felling age is | + | *A sufficient criteria for a stand to be classified as a conifer stand has been 500 conifer trees per ha. The reason for this is that there may be many decidous trees during the young phase of a conifer stand, so even if the dominant species may be deciduous, the main crop species is usually the conifer species and a larger proprtion of the deciduous trees removed in cleanings and thinnings. This is important since the dominant species is used when setting minimum final felling age (if the regeneration species is unknown, see below), and the minimum final felling age is usually shorter for deciduous species than for conifers. The problem with this criteria is that stands have almost always been classified as conifer stands, because 500 conifer trees is a quite low threshold value. The criteria has therefore been increased to 800 conifer tres/ha, and also been made available as a user parameter in control table TreatmentModel. The parameter is called Conifer Criteria. |