globalchange  > 影响、适应和脆弱性
DOI: 10.1016/j.foreco.2015.11.041
Scopus记录号: 2-s2.0-84948668179
论文题名:
Effective conservation measures are needed for wild Cathaya argyrophylla populations in China: Insights from the population structure and regeneration characteristics
作者: Qian S.; Yang Y.; Tang C.Q.; Momohara A.; Yi S.; Ohsawa M.
刊名: Forest Ecology and Management
ISSN:  0378-1127
出版年: 2016
卷: 361
起始页码: 358
结束页码: 367
语种: 英语
英文关键词: Cathaya argyrophylla ; Dalou Mountains ; Living fossil ; Nature reserve ; Population dynamics ; Seedling recruitment
Scopus关键词: Population dynamics ; Reforestation ; Seed ; Cathaya argyrophylla ; Dalou Mountains ; Living fossils ; Nature reserves ; Seedling recruitment ; Conservation ; coniferous tree ; conservation status ; geographical distribution ; nature reserve ; Pleistocene ; population structure ; regeneration ; relict species ; seedling establishment ; species conservation ; wild population ; China ; Dalou Mountains ; Cathaya argyrophylla
英文摘要: Owing to the existence of global Pleistocene refugia, the relict and ancient component of the modern endemic flora is considerable in South-Central China. Study of these relict species helps to understand past and recent ecological processes affecting species persistence, and also provides knowledge to guide human-assisted management and conservation practice. In this study, we investigated the current status of the remnant populations of Cathaya argyrophylla, one of the emblematic "living fossils", growing in the Dalou Mountains of South-Central China. We quantified the population structure of C. argyrophylla and investigated demographic changes of seedlings over a ten year period to learn the plant's regeneration patterns following the establishment of two national and provincial nature reserves in late 1970s. Notable "gaps" in age structure over 40 years were found, suggesting significant recruitment failures in these scattered population since the establishment of the nature reserves. Further, the number of dead individuals peaked at ages between 40 and 80 years and the seedlings showed high mortality in the past 10 years, probably due to intensified competition from the nearby broad-leaved trees and the reduction of suitable micro-habitats. These facts indicated that attention needs to be paid and follow-up measures should be taken to more effectively conserve C. argyrophylla in the future. © 2015 Elsevier B.V..
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资源类型: 期刊论文
标识符: http://119.78.100.158/handle/2HF3EXSE/65146
Appears in Collections:影响、适应和脆弱性

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作者单位: Postdoctoral Station of Ecology Chongqing University, Chongqing, China; Faculty of Urban Construction and Environmental Engineering, Chongqing University, Chongqing, China; Key Laboratory of Three Gorges Reservoir Region's Eco-Environment, Ministry of Education, Chongqing University, Chongqing, China; National Centre for International Research of Low-carbon and Green Buildings, Chongqing University, Chongqing, China; Joint International Research Laboratory of Green Building and Built Environment, Ministry of Education, Chongqing University, Chongqing, China; Institute of Ecology and Geobotany, Yunnan University, Kunming, China; Graduate School of Science, Chiba University, 648 Matsudo, Chiba, Japan; Institute of Medicinal Plant Cultivation of Chongqing, Nanchuan, China

Recommended Citation:
Qian S.,Yang Y.,Tang C.Q.,et al. Effective conservation measures are needed for wild Cathaya argyrophylla populations in China: Insights from the population structure and regeneration characteristics[J]. Forest Ecology and Management,2016-01-01,361
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