南方农业学报2011，Vol.42Issue(10)：1255-1258,4.
天然云南松生物量动态研究
Studies on the biomass dynamics of natural Pinus yunnanensis
摘要
Abstract
[Objective]The dynamics of individual and population biomass of natural Pinus yunnanensis were studied in order to provide references for maintaining high yield and quality forest of Pinus yunnanensis. [Method]The methods of plots arranged with age and growth equation were used to calculate the individual, population, aboveground and underground biomass of Pinus yunnanensis. [Result]The individual biomass developed slowly before 26 a, followed by intense increase. The population biomass showed initial rapid increase before 4 a, and then slowed down, linearly increased and showed low growth during 5-7 a, 8-9 a and 10-20 a, and rapidly increased again after 21a. The underground biomass accumulated in high proportion before 4 a, but decreased with increasing stand age and attained a final stable status. The aboveground biomass accounted for larger proportion of individuals after 4 a. [Conclusion]It has been observed that individual, population, aboveground and underground biomass increase with increasing stand age. Biomass is mainly affected by density during earlier stage and by the individual biomass during later stage. The distribution of aboveground and underground biomass is related to the adaptation strategies of Pinus yunnanensis.关键词
云南松/天然林/生物量/变化规律Key words
Pinus yunnanensis/ natural forest/ biomass/ dynamics分类
农业科技引用本文复制引用
蔡年辉,许玉兰,李根前,刘代亿..天然云南松生物量动态研究[J].南方农业学报,2011,42(10):1255-1258,4.基金项目
国家林业局科技支撑项目(TBKJ 2003-09) （TBKJ 2003-09）
云南省学术与技术带头人后备人才基金项目(2005PY01-20) （2005PY01-20）
云南省重点建设学科项目(500018) （500018）
