摘要
采用相对生长法对柳州地区6年生尾叶桉人工林的生物量密度效应进行研究。结果表明,尾叶桉人工林各器官的生物量与测树因子(D2H)存在密切关系。林分密度为833、1111、1250、1429、1666、2000、2500株/hm2时,林分生物量分别为61.57、81.54、90.05、79.94、79.39、74.64、74.03t/hm2,林分生物量随密度增加呈抛物线型变化。林分单株及其各组分的生物量均随林分密度的增加而降低,1250株/hm2是当地尾叶桉人工造林的理想密度。
The biomass-density effect of 6-year old Eucalyptus urophylla plantation in Liuzhou area was researched by using relative growth method.The results indicated that the biomass of various organs of E.urophylla plantation was closely related to cruise factor（D2H）.The stand densities were 833,1 111,1 250,1 429,1 666,2 000 and 2 500 plants/hm2 resp.,the stand biomasses were 61.57,81.54,90.05,79.94,79.39,74.64 and 74.03 t/hm2 resp.and the stand biomasses varied in para-curve with increase of density.The stand biomasses of single plant and various constituents were decreased along with increase of stand density.1 250 plants/hm2 was perfect density of local E.urophylla plantation.
出处
《安徽农业科学》
CAS
北大核心
2010年第21期11594-11596,11607,共4页
Journal of Anhui Agricultural Sciences
基金
国家林业局"948"创新项目(2005-4-03)
广西自然科学基金项目(桂科字0991035)
广西大学博士科研基金项目
关键词
尾叶桉
人工林
生物量
密度效应
Eucalyptus urophylla
Plantation
Biomass
Density effect
