Method for intermediate cutting growth of pinus massoniana

Abstract

The invention relates to a method for intermediate cutting growth of pinus massoniana. The method particularly comprises that: for a new afforesting land, the optimal silviculture density is 3,100 to 3,300 plants / hectare, the trees of which the stand age is 16 years undergo 20 to 30 percent of intermediate cutting for the first time, and the trees of which the stand age is 20 years undergo 20 to 30 percent of intermediate cutting for the second time; and the trees of which the stand age is more than 26 years stop growing and are at the over-mature stage, and cut at the time, and the forestry land is replanted. For the planted forestry site, the pinus massoniana of which the stand age is 16 years uses different intermediate cutting strengths of between 20 and 51 percent: namely the forest stand of which the density is 2,445 to 3,210 plants / hectare uses the intermediate cutting strengths of between 20 and 29 percent, the forest stand of which the density is 3,210 to 3,990 plants / hectare uses the intermediate cutting strength of between 30 and 39 percent, the forest stand of which the density is more than 4,590 plants / hectare uses the intermediate cutting strength of between 40 and 51 percent, the trees of which the stand age is 20 years can undergo 20 to 30 percent intermediate cutting for the second time, the trees of which the stand age is more than 26 years stop growing and are at the over-mature stage, and cut at the time, and the forestry land is replanted. The method has the advantages of keeping the self control ability, biological diversity and productivity of forest land of the forest ecosystem and increasing the timber output.

Description

technical field [0001] The invention relates to a forest cultivation and forest ecological technology, in particular to a method for thinning and cultivating a masson pine forest. Background technique [0002] Existing silviculture technology methods, including massoniana pine forest cultivation methods, are all aimed at timber cultivation and production, adopt diameter at breast height, tree height and volume as evaluation indicators, and develop the level of economic benefits (timber output) as value judgment indicators , these methods have played a certain positive role in increasing timber production; but at the same time, they also lead to the decline of forest ecosystem self-regulation ability, biodiversity and forest land productivity. Contents of the invention [0003] The technical problem to be solved in the present invention is: aiming at the shortcomings of the existing masson pine forest cultivation method, and provide a kind of thinning cultivation that can i...

AI Technical Summary

Problems solved by technology

[0003] The technical problem to be solved in the present invention is: aiming at the shortcomings of the existing masson pine forest cultivation method, and provide a kind of thinning cultivation that can improve the timber yield while maintaining the forest ecosystem self-regulation ability, biodiversity and woodland productivity method