摘要
采取随机取样法对渭北黄土高原淳化县自然和人工恢复植被进行了研究,分析了不同植被类型典型群落的特征和物种多样性。结果表明:王家山地区4种群落中共发现植物67种,分别隶属于24科56属。乔灌群落的外貌特征主要由高位芽植物决定,而草地主要由地面芽植物构成。物种多样性Shannon-wiener指数、均匀度指数和物种丰富度指数的大小顺序均为草地群落>灌木群落>乔木群落,而它们的Simpson指数大小顺序与之相反;乔木林之间群落相似性指数最高,乔木林和灌木林与草地的相似性指数均很低。
Natural and artificial vegetations in Chunhua county of Weibei loess plateau were studied by random sample method. Characteristics of typical vegetation communities and species diversity were analyzed. Results showed that there were 67 kinds of plants in Wangjia Mountain, which belonged to 24 families and 56 genera. The appearance of the arbor community and shrub community were decided by phanerophyte and the herb community was mainly composed of hemicryptophytes. The order of Shannon -wiener index of species diversity, evenness index and richness index was herb community 〉 shrub community 〉 arbor communities. But the Simpson index of four communities had an opposite trend. Similarity index of arbor community was the highest, those of arbor community and shrub community were the lowest compared with herb community.
出处
《安徽农业科学》
CAS
北大核心
2007年第17期5232-5234,共3页
Journal of Anhui Agricultural Sciences
基金
国家重点实验室基金项目(10501-163)
关键词
渭北黄土高原
物种多样性
典型植被群落
Weibei loess plateau
Species diversity
Typical vegetation communities
