摘要
研究物种多样性及荆江大堤坡面植物空间分布格局和群落季相动态,结果表明:一年内共出现27种植物,主要为世界广布型或泛热带型,季节变化明显;Shannon-Wiener指数值为:春季2.080 5,夏季0.956 8,秋季0.739 2,冬季0.516 4。Simpson指数对前者有较好的印证;该群落的空间分布格局主要为均匀分布型,植物群落结构稳定性较高,并有明显的季节变化。
The plant species diversity, distribution pattern and their seasonal dynamics on the slopes of Jingjiang levees were studied in the paper. The results showed that there were 27 herbal plants on the slope. Most of them were world-distributed or general tropical types. Their seasonal phases changed significantly as revealed by the Shannon-- Wiener index, which was 2. 080 5 in spring, 0. 956 8 in summer, 0. 739 2 in autumn and 0. 516 4 in winter. Simpson index was accordant with Shannon--Wiener index. The distribution pattern of the plant community on Jingjiang levees was mainly a uniform one. The structural steadiness of the plant community was very high with significant seasonal changes.
出处
《草业科学》
CAS
CSCD
2007年第10期1-5,共5页
Pratacultural Science
基金
湖北省科技厅攻关项目(2002AA3001C99)
湖北省教育厅重大科研项目(2002Z0007)
湖北省涝渍灾害与湿地农业重点实验室开放基金(HNKFJ2002C03)
湖北省教育厅优秀中青年科技创新团队资助项目(鄂教科[2003年7号]文-12)
国家教育部新世纪优秀人才支持计划(2005-2007)
关键词
荆江大堤
护坡草
物种多样性
季相动态
Jingjiang levees
slope protection grass
species diversity
seasonal phase dynamics
