Uptake Kinetics of \({\text{NH}_{4}^{+} }\), \({\text{NO}_{3}^{-} }\) and \({\text{H}_{2}\text{PO}_{4}^{-} }\) by Typha orientalis, Acorus calamus L., Lythrum salicaria L., Sagittaria trifolia L. and Alisma plantago-aquatica Linn

Abstract

The emergent plants may differ in their capacity to assimilate nutrients from eutrophic water bodies, so the utilization of suitable emergent plants is the key part for successful restoration of shallow eutrophic lakes and rivers. This research applied the depletion method to study the kinetics of uptake of nutrient (H2PO4−, NH4+, NO3−) in different nutrient stresses by the five emergent aquatic plants (Acorus calamus L., Typha orientalis, Lythrum salicaria L., Sagittaria trifolia L., Alisma plantago-aquatica Linn) in the riverine zones of Dashi River (39°30′–39°40′ N, 115°59′–116°5′ E), a shallow eutrophic river located in Fangshan District, Beijing. The results showed that at the three phosphorus levels, A. calamus and A. plantago-aquatica had the highest maximum uptake rate values for NH4+ under low to moderate phosphorus conditions, and high phosphorus, respectively. T. orientalis had the highest maximum uptake rate values for NO3− at all phosphorus concentrations, while the Michaelis-Menten constant values of L. salicaria and A. plantago-aquatica were smaller. At the three nitrogen levels, the maximum uptake rate values for H2PO4− were the greatest for A. plantago-aquatica at the low to moderate nitrogen levels and L. salicaria at high levels. Meanwhile, T. orientalis and L. salicaria had the smallest Michaelis-Menten constant values. In this study, nitrogen microbial transformations, such as nitrification, denitrification and their coupling were not measured and their role in measuring kinetics was not assessed. Thus, achieved results shall be considered as a synthesis of several processes mediated by plants, a theoretical guidance to the selection of plant species for phytoremediation of polluted water bodies with different nutrient stresses for quality improvement around the diverse rivers in Haihe River basin.

Using eDNA presence/non‐detection data to characterize the abiotic and biotic habitat requirements of a rare, elusive amphibian

“…The particularly high tolerance of P. australis ("common reed") to increased nutrient and toxic heavy metal loads, and its capacity to accumulate large amounts of both in its tissue, has led to its extensive use in phytoremediation practices in wetlands, especially for controlling phosphorus concentrations (e.g., Ahmad et al, 2014;Carricondo et al, 2020;Srivastava et al, 2014). The potential of L. stolonifera and L. salicaria to mitigate environmental pollution is likewise being increasingly investigated and acknowledged (e.g., Elifantz & Tel-Or, Galal et al, 2020;Nicholls & Mal, 2003;Saleh et al, 2019;Wang et al, 2012Wang et al, ,2021, although these species appear less suitable for phosphorus removal than P. australis. Despite its phytoremedial properties, and unlike the other two species, L. salicaria has been discussed as a potential threat, at least for some amphibian species.…”

“…stolonifera and L . salicaria to mitigate environmental pollution is likewise being increasingly investigated and acknowledged (e.g., Elifantz & Tel‐Or, 2002; Galal et al, 2020; Nicholls & Mal, 2003; Saleh et al, 2019; Wang et al, 2012,2021), although these species appear less suitable for phosphorus removal than P . australis .…”

Improving Tea Quality by Balancing ROS and Antioxidant System through Appropriate Ammonium Nitrogen Application

“…Plants respond to biotic and abiotic stresses with a serials of physiological and biochemical responses [16,17]. As a typical abiotic stress, nitrogen stress can induce plant growth inhibition and serious morphological, metabolic and physiological abnormalities [18]. Plant photosynthesis, for instance, is extremely sensitive to nitrogen stress.…”