湖南生态科学学报2026，Vol.13Issue(2)：7-17,11.DOI:10.3969/j.issn.2095-7300.2026.02.002
三种生境因子对沉水植物生长的影响
Combined Effects of Three Habitat Factors on the Growth of Submerged Macrophytes
摘要
Abstract
[Objective]This study aimed to investigate the effects of temperature levels,sediment types,and water body areas on the growth of submerged macrophytes.[Method]Four submerged macro-phyte species,namely Hydrilla verticillata,Myriophyllum spicatum,Vallisneria natans and Potamogeton maackianus,were selected as research materials.A factorial experiment was designed with two tempera-ture levels(ambient and warming),two sediment types(clay and sand),and two water body areas(large and small).Plant growth morphological traits,including biomass,plant height,and root length,were measured to examine the effects of these three environmental factors on the growth of submerged macrophytes.[Result]Sediment type was identified as the dominant factor influencing the growth of sub-merged macrophytes,with species-specific interactive effects among the three factors.Under ambient level in small water body area,the biomass,plant height,and leaf weight of H.verticillata,as well as the biomass,plant height,and stem weight of M.spicatum,were significantly higher in the clay sediment than in the sand sediment.In clay sediment,warming level significantly promoted biomass accumulation of P.maackianus,while inhibiting biomass accumulation of H.verticillata in small water areas.Under elevated temperature,the root length of P.maackianus in clay sediment was significantly greater in small water area than in large water area;conversely,under ambient level,the root length and root weight of P.maackianus in clay sediment were significantly smaller in small water area than in large water area.[Conclusion]The responses of submerged macrophytes to sediment types are species-specific and modula-ted by water body areas and temperature levels.This study reveals the differential responses and adaptive strategies of various submerged macrophyte species to environmental factors,providing scientific support for understanding the ecological adaptability of submerged macrophytes and guiding lake ecosystem con-servation,restoration,and submerged macrophyte community construction.关键词
沉水植物/升温/水域面积/底质类型/生长形态Key words
submerged macrophyte/warming/water body area/sediment type/morphological trait分类
农业科技引用本文复制引用
乐佳辉,谢奇伶,谭瑶萱,袁桂香..三种生境因子对沉水植物生长的影响[J].湖南生态科学学报,2026,13(2):7-17,11.基金项目
国家自然科学基金面上项目(32371642、32471646),湖南省自然科学基金(2024JJ5190) （32371642、32471646）
