宁夏平原沟渠湿地植物群落数量特征比较研究

The comparison research on quantity features of ditch wetland plant communities in Ningxia plain

采用样方、样线相结合的方法,调查了宁夏平原沟渠湿地植物群落的分布,并进一步分析了其群落的数量特征。结果表明:宁夏平原沟渠湿地的植物群落分布较均匀,植物生物多样性高、植物生物量大、数量繁多、植物类型齐全及生态序列完整等特征。而宁夏平原沟渠湿地群落整体的数量特征主要由Shannon-Wiener、Simpson两指标表征,且这两指标与群落的生态优势度成正相关关系。该研究为宁夏平原沟渠湿地的恢复与重建、为绿洲区植物建设提供理论和实践依据。

This study used the quadrat and sample line combination of methods to investigate the Ningxia plant community distribution in plain ditch wetland,and then analyzed the quantity characteristics of the community.The results showed that in Ningxia plain ditch wetland the plant community distribution is more homogeneous and plant biodiversity is high,the plant biomass is big,quantity is various,plant type is complete and ecological sequence features is complete.And the community overall quantity are characterized by Shannon-Wiener,Simpson index representation,and the two index and community ecological dominance are positively correlated.