培育措施对云南松人工林生物量的影响

The Effects of Cultivation Measures on Biomass of Pinus yunnanensis Plantation

为探索培育云南松(Pinus yunnanensis)人工林的有效措施,选择了3项立地条件、3个来源的良种处理、3种基质培育的苗木和3种造林密度,采用L9(34)正交表和随机区组设计安排云南松造林组合试验,研究各种措施对云南松树干、树枝、树叶、植被及枯落物、单株、种群等生物量的影响。结果表明,云南松各生物量的大小,主要取决于立地条件;而良种来源、育苗基质和造林密度对各生物量的影响各不相同。因此,以生物量为主要目标的云南松人工林培育中,在做好立地选择的基础上,以良种选择为主,结合具体的生物量指标,配以有效的育苗基质和造林密度,培育高产优质云南松人工林。

In order to explore the effective cultivation measures for Pinus yunnanesis plantation, an com- bined experiment with 3 sites, improved varieties from 3 sources, seedlings raised in 3 mediums and 3 planting densities was conducted by adopting L9 （34） orthogonal table and random grouping design to study the impacts of each measure on the trunk, branch, leaves, vegetation, forest litters, individual plant and population of P. yunnanensis. The results indicated that the biomass was mainly depended on the site condition. The impacts of the variety sources, the seedling medium and planting density on bio- mass were different. Therefore, in the biomass-oriented plantation cultivation, the suitable measures should include the suitable selection of planting sites and improved varieties, combined with biomass indi- cators, suitable medium and planting density, to raise P. yunnanensis with high yield and superior quailty.