Abstract:

In order to explore effective cultivation measures for Pinus yunnanesisn plantation, an combined experiments, with three sites, three good seed sources, three seedlings from different nursery soils and three planting densities of P. yunnanensis planting were carried out according to principles of orthogonally and randomized block arrangement to study the effects of different measures on the growth, including stand volume, volume per tree, diameter at breast height and tree height. The results indicated that the sizes of kinds of growth were mainly up to the sites and also affected by seed sources, but were not impacted by nursery soils. In addition, diameter at breast height was also affected by planting densities. Therefore, for better P. yunnanensis plantation cultivation, the first measure was to choose good site, the second was good seed, and the third was appropriate density.