摘要
采用样方取样法调查了广东省始兴县罗坝镇小安村的小红栲林．根据1400m2的样方面积调查，测算了群落乔木层、灌木层、草本层和层间植物的重要值、物种多样性指数（Shannon-Wiener指数）、物种均匀度、生态优势度．结果表明，群落中乔木层、灌木层、草本层和层间植物的物种多样性指数（Shannon-Wiener指数）分别为2.0248、2.9021、2.093和2.2698；物种均匀度分别为0．3916、0．5491、0.6051和0．7566；生态优势度分别为0．3946、0．1503、0．2171和0．2415．本研究可为小红栲的生产经营提供依据．
1400m2 plots in a Castanopsis carlesii forest at Luoba, Shixing county, north of Guangdong Province, were surveyed. Importance value, species diversity index (Shannon-Wiener Index), evenness index, ecological dominance of the community in relation to thent layers, i. e. tree layer, shrub layer,herbaceous layer and interlayer, were computed. Growth volume of the dominant species Castanopsis carlesii was also measured and calculated. Results showed that Shannon-Wiener Index of tree layer, shrub layer, herbaceous layer and inter-layer were 2.024 8, 2.902 1, 2.903 4 and 2.269 8 respectively;evennss index were 0.391 6, 0.549 1, 0.605 1 and 0.756 6 respectively; ecological dominance were 0.394 6, 0. 150 3, 0.217 1 and 0.241 5 respectively. This study can provide theoretical foundation for the management of Castanopsis carlesii forest.
出处
《华南农业大学学报》
CAS
CSCD
北大核心
1999年第4期98-102,共5页
Journal of South China Agricultural University
基金
华南生物科学与技术研究中心资助!3189
关键词
广东
小红栲林
物种多样性
生态优势度
Guangdong
Castanopsis carlesii forest
species diversity index
ecological dominance
evenness index
