Excess nitrogen (N) is one of the most widespread and serious pollutants in environment, but wetlands can reduce N loads, ameliorating its damaging effects downstream. Tropical are highly productive experience high temperatures year-round, resulting potentially denitrification rates. However, few measurements have been reported for tropical wetlands. In this study, we measured within stands mac...

The extent of O2 transport from aerial plant tissue into the root zone was evaluated for several floating and emergent aquatic macrophytes that have characteristics favorable for wastewater treatment. The highest Oi transport rates from aerial tissue into the root zone were associated with plants having a small root mass. As root mass increased, the rate of O, transport decreased for aquatic ma...

Cyanobacterial blooms can cause severe ecological and health problems in drinking water reservoirs. To alleviate this problem, allelopathically active submerged macrophytes be used to reduce cyanobacterial growth. Accordingly, study aimed evaluate the sensitivity of strains Microcystis aeruginosa complex isolated from reservoirs with presence absence allelochemicals Ceratophyllum demersum. A co...

Combined use of in situ passivation and macrophytes is a valuable technology that exerts remarkable effects on aquatic systems. However, the effectiveness ecological functions this combined for macrophytes-dominated eutrophic (MDE) lakes with organophosphorus-controlled internal phosphorus (P) loading were poorly understood. In study, simulation experiments performed to study combination La-mod...

Observations made in rivers of Douala showed that aquatic ecosystems receive little attention terms their environmental monitoring. The aim this study was to assess the ecological status Kondi and Tongo Bassa at from communities macrophytes. Specifically, it question evaluate physicochemestry environment these as well diversity macrophyte species. Then, parameters were measured (about 50cm deep...

Abstract. The topic of evaporation estimates is fundamental to land-surface hydrology. In this study, FAO-56 Penman–Monteith equation (FAO56–PM), multiple stepwise regression (MLR), and Kohonen self-organising map (K–SOM) techniques were used for the estimation daily pan (Ep) in three treatments, where C was standard class A with top water, S a sediment covered bottom, SM containing submerged m...

The uptake of phosphorus, the biomass, and the standing P stock were measured over the course of a year in roots and shoots of the Eurasian watermilfoil, Myriophyllum spicatum, from Lake Wingra, Wisconsin. The resulting data were used to estimate the relative contributions of root and shoot uptake to the phosphorus economy of the plant and to examine the role of the plant in moving phosphorus b...

—Many Kansas reservoirs are currently experiencing decreased sport fish production as a result of the typical aging processes that occur in impounded systems. American water willow Justicia americana was planted in three Kansas reservoirs (.1,800 ha) for littoral zone habitat enhancement to mitigate sport fish losses and increase the recruitment of age-0 largemouth bass Micropterus salmoides. W...