海南东寨港红树林植物细根功能性状对不同潮位沉积物养分变化的响应

李梦琦, 苗灵凤, 李大东, 龙奕帆, 叶冰冰, 杨帆

Response of mangrove fine root functional traits to sediment nutrient changes at different tide levels in Dongzhaigang, Hainan, China

LI Meng-Qi, MIAO Ling-Feng, LI Da-Dong, LONG Yi-Fan, YE Bing-Bing, YANG Fan

图1 不同潮位下2种红树植物根系过氧化物酶和沉积物脲酶、酸性磷酸酶活性(平均值±标准误)。A, 根系过氧化物酶活性。B, 沉积物脲酶活性。C, 沉积物酸性磷酸酶活性。HL, 海莲; HS, 无瓣海桑。H, 高潮位; M, 中潮位; L, 低潮位。不同小写字母表示根系过氧化物酶、根际沉积物脲酶和酸性磷酸酶活性在不同潮位和不同物种间差异显著(p < 0.05)。

Fig. 1 Activities of root peroxidase, sediment urease and acid phosphatase of 2 mangrove plants under different tide levels (mean ± SE). A, Root peroxidase activity. B, Urease activity of sediments. C, Sediment acid phosphatase activity. HL, Bruguiera sexangular; HS, Sonneratia apetala. H, high intertidal elevation; M, middle intertidal elevation; L, low intertidal elevation. Different lowercase letters indicate that the activities of root peroxidase, rhizosphere sediment urease, and acid phosphatase are significantly different at various tide levels and between the two species (p < 0.05).