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杉木、檫树都是我国南方重要的优良速生用材树种,檫树不仅速生,树冠也很大,栽密了立木分化激烈,栽稀了则单位面积产量不高。同时,檫树又是落叶阔叶树,叶子养份含量较高。因此,人们用树冠较窄的常绿针叶树——杉木与它混栽。我省丽水林场曾在1957年实行杉檫混交造林,接着全省相继营造了一定面积的杉檫混交林,但大多数失
Cunninghamia lanceolata and Castanopsis 檫 trees are all important species of excellent fast-growing timber species in southern China. Notoginseng tree is not only fast-growing, but also has a large crown. Planting of dense standing tree has intense differentiation. When planting thinning, yield per unit area is not high. At the same time, Sui tree is deciduous broad-leaved tree, leaf nutrient content is higher. Therefore, people use the evergreen conifers with narrow canopy - Chinese fir mixed with it. Lishui forestry in our province was implemented in 1957, mixed cedar afforestation, followed by the province have to create a certain area of Cunninghamia lanceolata mixed forest, but most of the loss