三倍体毛白杨人工林施肥与营养诊断研究进展

Advances in the Study of Fertilization and Nutrient Diagnosis of Triploid Populus tomentosa Plantation

评述了我国三倍体毛白杨人工林林地土壤理化性质对林木生长的影响、养分需求规律与营养诊断以及施肥效应等现状,建议在我国加强三倍体毛白杨养分需求规律的研究,建立三倍体毛白杨营养诊断标准体系,加强对三倍体毛白杨人工林地肥料-水-生物量、林木-凋落物-土壤之间相互关系的研究,重视其人工林的长期生态功效,保持林地的可持续利用和林业的可持续发展。

Fertilization and nutrient diagnosis are important parts of triploid Populus tomentosa plantation. This paper discussed the effect of soil physic-chemical properties on tree growth, the nutrient requirement characteristics and nutrient diagnosis, the effect of fertilization on triploid P. tomentosa plantation. The authors suggested that attention should be paid to establishing a nutrient diagnosis standard and making more studies on nutrient requirement characteristics of triploid P. tomentosa, correlation of fertilization - water - biomass and plant - litter decomposition - soil. Emphasis should be given on the long-term ecological efficiency of triploid P. tomentosa plantation, maintain the sustainable utilization of forest land and sustainable development of forestry.