不同造林因子对湿地松成活率和生长的影响

为了调查不同造林因子对湿地松成活率和生长的影响,文章从施肥方式、立地选择、林地小气候、土壤质地、种苗类型和苗木质量等方面对湿地松造林成活率及其生长量进行了试验分析,结果表明:保持土壤中合适的水分是提高湿地松成活率的关键,合理施肥,立地条件优越,小气候温暖湿润,土壤质地良好,容器苗和壮苗造林均能提高湿地松的成活率及树高、地径的生长量,因此栽植湿地松时应尽量选择自然条件优越的地类。如果条件允许可施基肥改善土壤营养状况,在干旱贫瘠的土壤上种植湿地松时,应采用容器苗,以提高苗木成活率和生长量。

Effect of Different Afforestation Factors on Survival Rate and Growth of Pinus elliottii

Experiments and analysis were made to investigate the effect of different afforestation factors that included fertilization methods, site selection, microclimate, soil property, seedling type and seedling grades in the paper, on survival rate and growth of Pinus elliottii. The results show that the key factor to improve the growth of Pinus elliottii is keep soil water in reason. In addition, scientific fertilization, warm and wet microclimate, good site selection , high soil property, container seedling and good seedling forestation all can improve the survival rate, growth of height and diameter in ground. Base on the results, we should to select soil site type with better natural condition to plant. Propose to fertilize with base fertilizer if condition permits, when Pinus elliottii are planted in dry, poor land, container seedling can be used to improve the growth rate and growth.