芦芽山油松-辽东栎林优势树种空间分布格局研究  

Spatial Distribution Patterns of Dominant Tree Species in Pinus tabulaeformis-Quercus liaotungensis Forest in Luyashan Mountain,China

作　　者：张金屯[1] 孟东平[2] 

机构地区：[1]北京师范大学生命科学学院,北京100875 [2]山西大学黄土高原研究所,太原030006

出　　处：《西北植物学报》2006年第8期1682-1685,共4页Acta Botanica Boreali-Occidentalia Sinica

基　　金：国家自然科学基金(30070140);教育部骨干教师基金(03006)资助

摘　　要：采用由连续小样方（2m×2m）组成的样带取样，并用双项轨迹方差分析法对芦芽山油松-辽东栎林优势树种空间分布格局进行了研究。结果表明，油松和辽东栎的小斑块规模在8～16m之间，大斑块规模在60-70m之间。乔木种联合格局的小斑块规模为20-30m，大斑块规模为80～90m。乔木层的联合格局比单个优势种群格局大，种群格局是相互交错和相互重叠的。该格局结构有利于资源的充分利用并增强对干扰的抗性。Random and contiguous quadrats （2 m × 2 m） were chosen and two-term local variance analysis （TTLVA） was adopted to examine spatial distributions of dominant tree species in Pinus tabulaeformis- Quercus liaotungensis forest in Luyashan Mountain. It was shown that P. tabulaeformis and Q. liaotungensis had a small patch spanning 8-16 m and a larger patch spanning 60-70 m. Associated tree species had a small patch spanning 20-30 m and a large patch spanning 80-90 m. In the arbor layer,the distributions of associated trees species were larger than those of individual dominant species and the distributions of the populations were crisscrossed and overlapped. This distribution pattern was conductive to making full use of resources and enhancing the resistance to disturbance.

关 键 词：种群分布 空间格局 群落结构 数量方法 油松 辽东栎 

分 类 号：Q948.155[生物学—植物学]