scholarly journals Influences of water depth gradient on photosynthetic fluorescence characteristics of Vallisneria natans

2014 ◽  
Vol 26 (6) ◽  
pp. 879-886 ◽  
Author(s):  
YANG Xin ◽  
◽  
SUN Shuyun ◽  
BAI Xiang ◽  
ZHANG Qichao ◽  
...  
Keyword(s):  
Water Depth ◽  
Depth Gradient ◽  
Vallisneria Natans ◽  
Fluorescence Characteristics

Responses of the submerged macrophyte Vallisneria natans to a water depth gradient

2020 ◽  
Vol 701 ◽  
pp. 134944 ◽  
Author(s):  
Huimin Li ◽  
Qi Li ◽  
Xin Luo ◽  
Jie Fu ◽  
Jibiao Zhang
Keyword(s):  
Water Depth ◽  
Submerged Macrophyte ◽  
Depth Gradient ◽  
Vallisneria Natans

scholarly journals Effects of water depth gradient on physiological characteristics of Vallisneria natans

2019 ◽  
Vol 34 (1) ◽  
pp. 405-417
Author(s):  
Yun Cao ◽  
Dan Chen ◽  
Xin-Sheng Ji ◽  
Su-Juan Zhang ◽  
Qi Huang ◽  
...  
Keyword(s):  
Water Depth ◽  
Physiological Characteristics ◽  
Depth Gradient ◽  
Vallisneria Natans

scholarly journals Effects of Water Depth on the Growth of the Submerged Macrophytes Vallisneria natans and Hydrilla verticillata: Implications for Water Level Management

Water ◽  
2021 ◽  
Vol 13 (18) ◽  
pp. 2590
Author(s):  
Qisheng Li ◽  
Yanqing Han ◽  
Kunquan Chen ◽  
Xiaolong Huang ◽  
Kuanyi Li ◽  
...  
Keyword(s):  
Water Level ◽  
Water Depth ◽  
Deep Water ◽  
Submerged Macrophytes ◽  
Hydrilla Verticillata ◽  
Water Level Fluctuations ◽  
Total Biomass ◽  
Intermediate Water ◽  
Factors Affecting ◽  
Vallisneria Natans

Water level is one of the most important factors affecting the growth of submerged macrophytes in aquatic ecosystems. The rosette plant Vallisneria natans and the erect plant Hydrilla verticillata are two common submerged macrophytes in lakes of the middle and lower reaches of the Yangtze River, China. How water level fluctuations affect their growth and competition is still unknown. In this study, three water depths (50 cm, 150 cm, and 250 cm) were established to explore the responses in growth and competitive patterns of the two plant species to water depth under mixed planting conditions. The results show that, compared with shallow water conditions (50 cm), the growth of both submerged macrophytes was severely suppressed in deep water depth (250 cm), while only V. natans was inhibited under intermediate water depth (150 cm). Moreover, the ratio of biomass of V. natans to H. verticillata gradually increased with increasing water depth, indicating that deep water enhanced the competitive advantage of V. natans over H.verticillata. Morphological adaptation of the two submerged macrophytes to water depth was different. With increasing water depth, H. verticillata increased its height, at the cost of reduced plant numbers to adapt to poor light conditions. A similar strategy was also observed in V. natans, when water depth increased from 50 cm to 150 cm. However, both the plant height and number were reduced at deep water depth (250 cm). Our study suggests that water level reduction in lake restoration efforts could increase the total biomass of submerged macrophytes, but the domination of key plants, such as V. natans, may decrease.

Biodiversity patterns across taxonomic groups along a lake water-depth gradient: Effects of abiotic and biotic drivers

2019 ◽  
Vol 686 ◽  
pp. 1262-1271 ◽  
Author(s):  
Wenqian Zhao ◽  
Ang Hu ◽  
Zhenyu Ni ◽  
Qian Wang ◽  
Enlou Zhang ◽  
...  
Keyword(s):  
Water Depth ◽  
Lake Water ◽  
Depth Gradient ◽  
Biodiversity Patterns ◽  
Taxonomic Groups ◽  
Gradient Effects
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