摘要
采用x2检验、Pearson积矩相关系数和Spearman秩相关系数对山西太行山峡谷区荆条Vitex negundo var.heterophylla灌丛植物群落的种间关系研究,结果表明:26个优势种构成的525个种对,其中极显著关联的种对数分别为5、14、15,显著关联的种对数分别是10、6、13。种对间的正关联或正相关,主要是由于它们具有相近的生物学特性、对生境具有相似的生态适应性和相互重叠的生态位所致。种对间负关联或负相关,则是由于它们具有不同的生物学特性、对生境具有不同的生态适应性和相互分离的生态位所致。
The interspecific association and correlation of 26 dominant species in Vitex negundo var. heterophylla community were analyzed by using χ^2-iest, Pearson＇s coefficient and Spearman＇s coefficient. The resuhs showed cies-pairs, the extreme sig that th nificant ose species composed association or correlation were 525 species-pairs; among these spe 5, 14, 15 respectively; and the signifieant association or correlation were 10, 6, 13, respectively. Species-pair, showing positive association or correlation, might have similar biological characteristics and similar eco-adaptability and niche overlapping. Species-pairs showing negative association or correlation might have different ecological characters, different adaptation and niche separation.
出处
《草业科学》
CAS
CSCD
北大核心
2009年第10期24-29,共6页
Pratacultural Science
基金
国家自然科学基金资助(30870399)
关键词
多样性
荆条
太行山峡谷区
diversily
Vitex negundo var. heterophylla
Taihang Mountain
