Diversity and distribution pattern of riparian plant species in the Wami River system, Tanzania

查看全文 作　　者：Cosmas [1]Mligo

机构地区：[1]Department of Botany,University of Dar es Salaam,PO Box 35060,Dar es Salaam,Tanzania

出　　处：《Journal of Plant Ecology》索引2017年第10卷第2期,共12页

摘　　要：Aims The Wami River system is among the most important rivers for ripar-ian plant biodiversity conservation but it is potentially threatened by anthropogenic activities.This study was aimed to determine riparian plant species diversity and distribution patterns in relation to the anthropogenic disturbances.Methods The transect method was used to collect vegetation data.Transects were established perpendicular to the river at intervals of 50 m downstream and five plots were systematically established,sepa-rated by 5-m distance along each transect.Important Findings A total of 261 plant species in 68 families were recorded in the Wami River system with a Shannon diversity index in the range of 1.63-2.94 and a significantly decreasing trend downstream.Using the two-way indicator species analysis(TWiNSPAN),three plant communities(A,B and C)emerged based on variations in riparian plant species composition among sites.Canonical correspondence analysis(CCA)indicated that the spatial pattern of riparian plant species was significantly influenced by environmental variables.This implies that the plant species composition gradients and spatial assemblages of vegetation communities are a result of human disturbances.Because of the fragile nature of the riparian system,some species are more vulnerable than others and hence there is an urgent need for better land use planning to conserve riparian plant biodiversity in the sub-basin of Wami River. 关键词：COMMUNITIES CCA disturbances DIVERSITY riparian vegetation Wami River

相关文献

参考文献（68）
引证文献（5）
耦合文献（0）

参考文献(68)

引证文献(5)

互联网出版许可证新出网证(渝)字10号全国400电话 - 免长途话费

Diversity and distribution pattern of riparian plant species in the Wami River system, Tanzania

参考文献(68)

引证文献(5)

用户提示