Clonal growth adaptation of Carex brevicuspis to sediment deposition in Lake Dongting wetland

被引：0

作者：

Pan, Baihan ^{[1
,2
]}

Zou, Ya ^{[1
]}

Deng, Zhengmiao ^{[2
]}

Xie, Yonghong ^{[2
]}

Hou, Zhiyong ^{[2
]}

Li, Xu ^{[2
]}

Zeng, Jing ^{[2
]}

Wu, Tao ^{[1
]}

Xie, Hongtao ^{[3
]}

Li, Huijuan ^{[4
]}

机构：

[1] College of Life Sciences, Hunan Normal University, Changsha,410081, China

[2] Key Laboratory of Agro-ecological Processes in Subtropical Region, Dongting Lake Station for Wetland Ecosystem Research, Institute of Subtropical Agriculture, Chinese Academy of Sciences, Changsha,410125, China

[3] Forestry Bureau of Yiyang City, Hunan Province, Yiyang,413000, China

[4] Hunan Xinyuan Environment Technology Co., Ltd., Engineering Technology Center for Environmental Protection and Ecological Restoration of River-Lake Wetland in Hunan Province, Changsha,410008, China

来源：

Hupo Kexue/Journal of Lake Sciences | 2024年 / 36卷 / 05期

关键词：

Aboveground biomass - Clonal growth - Growth strategy - Plant population - Population characteristics - Population densities - Root system - Sediment deposition - Sedimentation rates - Wetland plants;

D O I：

10.18307/2024.0533

中图分类号：

学科分类号：

摘要：

Sediment deposition is an important factor affecting the survival and growth of wetland plants. Clonal plants are one of the most important plants in the wetland ecosystem. At present, there are few studies on the response of clonal plant populations to different deposition rates in wetlands under natural hydrological conditions. In this study, Carex brevicuspis, a typical clonal plant in Lake Dongting wetland, was chosen to investigate its population response to different deposition rates (0, 2, 4, 6 cm/a, corresponding to control, low, medium, and high deposition rates, respectively) by field control experiments for three consecutive years. Results showed that sedimentation rate had a significant effect on the plant population density, with significantly lower population density in the sedimentation treatment. Plant population density decreased and the ratio of underground/above ground biomass increased with sedimentation rate increase. With the treatment of the highest sedimentation rate, the plant population has lowest density and the highest ratio of underground/aboveground biomass. Sediment burial promoted the formation of more short roots ( © 2024 by Journal of Lake Sciences.

引用

页码：1470 / 1478

共 23 条

[21] Study On Flow and Sediment Diversion at Four Inlets of Dongting Lake And Tendency and Influences of Erosion-Deposition Variation
Deng, Minghua
Liu, Kabo
Luan, Zhenyu
ADVANCES IN HYDROLOGY AND HYDRAULIC ENGINEERING, PTS 1 AND 2, 2012, 212-213 : 10 - +
[22] Soil water content and pH drive archaeal distribution patterns in sediment and soils of water-level-fluctuating zones in the East Dongting Lake wetland, China
Wei Li
Defeng Feng
Gang Yang
Zhengmiao Deng
Junpeng Rui
Huai Chen
Environmental Science and Pollution Research, 2019, 26 : 29127 - 29137
[23] Soil water content and pH drive archaeal distribution patterns in sediment and soils of water-level-fluctuating zones in the East Dongting Lake wetland, China
Li, Wei
Feng, Defeng
Yang, Gang
Deng, Zhengmiao
Rui, Junpeng
Chen, Huai
ENVIRONMENTAL SCIENCE AND POLLUTION RESEARCH, 2019, 26 (28) : 29127 - 29137

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