期刊论文

Effects of water levels on the growth and reproductive characteristics of Carex brevicuspis growing on sites with different elevations

Xie, Y.H.

中文

生态学报

1000-0933

2016

36

7

1959-1966

10.5846/stxb201409101796

国家科技支撑计划项目（2014BAC09B03） 国家基础性工作调查专项（2013FY111802） 国家自然科学基金（31170342）

本校为第一机构

在淡水湿地生态系统中,水位通常是制约植被生长和繁殖动态的关键因素,进而对物种组成、群落演替和植被分布格局产生决定性影响。无性繁殖是洞庭湖湿地克隆植物适应环境胁迫的重要策略之一,以洞庭湖湿地典型克隆植物-短尖苔草(Carex brevicuspis C.B.Clarke)为对象,研究了不同分布高程(23.7 m和25.8 m)的植物对水位变化(0 cm,-15 cm,-30 cm)的生长和繁殖特征响应。结果表明:水位变化对不同分布高程分布短尖苔草的生长和克隆繁殖特征均产生显著影响(P0.05),表明适当干旱有利于高程区苔草的克隆繁殖。对于低程区分布短尖苔草而言,水位变化对其生长特征有显著影响(P0.05)。因此,短尖苔草的克隆繁殖特...

In freshwater wetland ecosystems, water level is the key factor constraining the growth and reproduction of macrophytes, and consequently influences species composition, community succession, and vegetation distribution. Reproduction is the fundamental behavior and the key life process affecting plant population persistence. Many clonal plants possess the capacity for both sexual reproduction through seeds and clonal propagation (asexual reproduction) through bud banks. In clonal plants, the trade-offs between sexual and asexual reproduction ar...