豫西日本落叶松初植密度的初步研究

ON the first planting density of Larix kampferi(Lamb.)Carr in West Henan Province

通过对 10年生豫西日本落叶松 (Larixkaempferi(Lamb .)Carr试验林不同密度主要生长因子的调查、研究及相关分析 ,建立了各性状同其密度间的相关数学模型 .利用模型提出了以生产纸浆材、小径材为目的的豫西日本落叶松人工林的最适初植密度是 2 0 0 0～ 2 5 0 0株·hm-2 ,以生产中径材为目的是 110 0～ 15 0 0株·hm-2 .

The factors effecting the growth of Larix kaempferi(Lamb.)Carr of different density were surveyed and analysed in the 10 year old Larix kaempferi(Lamb.)Carr forest. The math model between the factors and different density was established.The optimum first density of Larix kaempferi(Lamb.)Carr in West Henan Province was put forward. Based on this model the optimum first planting density of Larix kaempferi(Lamb.)Carr for paper and small-sized wood and middle-sized wood should be respectinely 2 000～2 500 hm 2,1 100～1 500 hm 2.