使用大苗造林，增加造林密度。
Use afforestation of big young plant, increase afforestation density.
油松和麻栎林土壤物理性质与造林密度也有很强的相关性。
Chinese pine and hemp oakery soil physical property also have very strong correlativity with forestation density.
造林密度大，则生长轮变窄，管胞列数减少，晚材率增加。
As planting density increased, the growth ring width and tracheid row decreased but proportion of late wood increased.
胸径、材积、冠幅、新梢生长量随造林密度减小显著增大。
The DBH, volume, crown breadth and the growth of shoots increase obviously as the density decreases.
并分别立地类型、造林密度、林分年龄对这些指标的影响进行了研究。
And the effects of the site type, silviculture density and stand age on the above indexes are studied.
结果表明，造林密度对马尾松管胞形态总平均值影响不大，方差分析不显著；
The results show that the average value of tracheid form can not be affected by the planting density through variance analysis .
使经营单位可根据利用单位的要求，调整造林密度和经营方式及最佳利用时间。
According to the demand of utilization unit, the management unit may regulate the planting density, management manner and optimum utilization time.
相同立地等级的林分随着造林密度的增加，林分的市场收入价格和成本价格逐渐增大。
With increase of planting density, market income price and cost price of stand which have same site grade gradually enhance.
其中，造林密度对木材造纸特性的影响不显著，年龄、立地类型均显著地影响造纸特性。
Site type and stand age can significantly influence the paper properties whereas silviculture density effect isn't significant yet.
内容包括造林密度与树冠结构、造林密度与林木生长特性、造林密度与生物量等关系的研究。
The studied items include the relationship between planting density and crown structure, planting density and growth characteristics, planting density and biomass etc.
林分和单株的树干、树枝、树皮生物量组成比例均随立地指数、造林密度的变化无明显的差异。
The ratios of stem, bark and branch biomass to total biomass of stand and individual tree are basically steady in different site index and planting density.
杨树是山东省主要造林树种之一，确定最佳采伐周期、造林密度、混交方式，是提高生物量的关键技术。
Poplar is one of the main afforestation tree species in Shandong Provicne. Defining the best cutting period, afforestation density and mixed mode is the key technologies to promote biomass.
采集贵州省龙里林场马尾松密度试验林15年生马尾松木材，5种造林密度，研究造林密度对马尾松管胞形态及其径向变异的影响。
The tracheid form and radial variance were studied for 15 years Masson pine plantations with five different planting densities in Longli, Guizhou.
为防止严重的土壤干层发生，选择生长较缓慢、消耗水分少的树种是必要的，并应减小造林树种植株密度。
In order to avoid the occurrence of dried soil layer, it is necessary to select the tree species with slow growth and low water consumption, and the afforesting density should be reduced.
目前，我国绝大对数地区营造的人工林均以用材林模式为主，为了保证造林初期的成活，初植密度普遍较大。
Nowadays, most of plantation are timber forest used in many area in China and for guaranteeing the high survival rate, the density of initial stocking of trees is generally large.
目前，我国绝大对数地区营造的人工林均以用材林模式为主，为了保证造林初期的成活，初植密度普遍较大。
Nowadays, most of plantation are timber forest used in many area in China and for guaranteeing the high survival rate, the density of initial stocking of trees is generally large.
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