Factors on seed germination, tuber sprout and plant growth of Vallisneria species in China

被引：6
|
作者：
Wang R. [1 ]
He L. [2 ,3 ]
Zhang M. [4 ]
Cao T. [5 ]
Zhang X. [5 ]
Liu Y. [1 ]
Ni L. [5 ]
Ge G. [1 ,2 ]
机构：
[1] School of Life Science, Nanchang University, Nanchang
[2] Key Laboratory of Poyang Lake Environment and Resource Utilization of Ministry of Education, Nanchang University, Nanchang
[3] School of Resources, Environment and Chemical Engineering, Nanchang University, Nanchang
[4] Jiangxi Academy of Environmental Sciences, Nanchang
[5] Institute of Hydrobiology, Chinese Academy of Sciences, Wuhan
来源：
Hupo Kexue/Journal of Lake Sciences | 2021年 / 33卷 / 05期
关键词：
Environmental factor; Eutrophication; Submerged macrophyte restoration; Vallisneria;
D O I：
10.18307/2021.0503
中图分类号：
学科分类号：
摘要：
The abundance of the Vallisneria species has declined in many freshwater bodies in China, as their habitats were disturbed and polluted by human activities. The restorations of these species, however, have had limited success. This review aims to determine which factors and how these factors regulate the seed germination, tuber sprout and plant growth of the Vallisneria species, thus providing insights for the protection and restoration of the Vallisneria species in China. The factors which affect the seed germination, tuber sprout and plant growth of the Vallisneria species were summarized and the quantitative relationships between some key environmental factors and seed germination, tuber sprout and plant growth of the Vallisneria species were re-analyzed based on the data from the literature. The results showed that: (1) studies for V. natans (Lour.) Hara were much more than those of V. spinulosa Yan and V. denseserrulata Makino in literatures; (2) seed germination of the Vallisneria species was affected by factors including temperature, light availability, water depth, burial depth, growth medium and store conditions; (3) the growth of the Vallisneria species was affected by factors including light availability, water depth, water nutrient, sediment nutrient, sediment organic matter and herbivory; (4) seed germination rate of V. natans and V. spinulosa was high (>50% in average) at 20-30℃; (5) seed germination rate of V. natans rapidly decreased with burying depth; (6) the relative growth rate of V. natans increased with light availability and decreased with water depth; (7) the growth of V. natans decreased with ammonia nitrogen concentration and (8) the negative effect of high total nitrogen and total phosphorus in water column or sediment on Vallisneria species was from shading by phytoplankton and epiphyton induced by nutrient enrichment other than direct toxicity. More studies are needed to reveal the quantitative relationship between the environmental factors and the growth of Vallisneria species in the further. © 2021 by Journal of Lake Sciences.
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页码：1315 / 1333
页数：18
相关论文
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