Results 1 to 10 of about 183,876 (266)

Measurement of Total Phosphorus and Polyphosphate in Chlamydomonas reinhardtii. [PDF]

open access: yesBio Protoc, 2023
Phosphorus is an essential nutrient for plants. Green algae usually store excess P as polyphosphate (polyP) in the vacuoles. PolyP, a linear chain of three to hundreds of phosphate residues linked by phosphoanhydride bonds, is important for cell growth.
Yang Y   +6 more
europepmc   +4 more sources

Miniaturized Portable Total Phosphorus Analysis Device Based on Photocatalytic Reaction for the Prevention of Eutrophication [PDF]

open access: yesMicromachines, 2021
Phosphorus (P) is one of the most important elements in the aquatic ecosystem, but its overuse causes eutrophication, which is a serious issue worldwide.
Dong Geon Jung   +7 more
doaj   +2 more sources

Changes in Soil Phosphorus Pools in Long-Term Wheat-Based Rotations in Saskatchewan, Canada With and Without Phosphorus Fertilization

open access: yesSpanish Journal of Soil Science, 2022
Phosphorus (P) is an essential nutrient for all organisms, and many crops require P fertilization for optimum yield. However, there are concerns about the P in agriculture, including the sustainability of phosphate sources for fertilizers and water ...
Barbara J. Cade-Menun
doaj   +1 more source

Evaluating the effects of different pollution reduction scenarios on the total phosphorus concentration of a mountainous river basin in southwest China using SWAT model: a case study of the Donghe River in Baoshan, Yunnan

open access: yesJournal of Water and Climate Change, 2023
Water quality has become a significant concern in many river basins in China due to both point and non-point source pollution. The SWAT model assessed pollution reduction scenarios and their effects on Donghe River basin water quality in southwest China.
Yongjian Wang   +3 more
doaj   +1 more source

A Study on TiO2 Surface Texturing Effect for the Enhancement of Photocatalytic Reaction in a Total Phosphorous Concentration Measurement System

open access: yesMicromachines, 2021
Powerful sunlight, a high water temperature, and stagnation in the water flow induce eutrophication in rivers and lakes, which destroys the aquatic ecosystem and threatens the downstream water supply systems.
Jae Keon Kim   +9 more
doaj   +1 more source

Efficacy of a Sedimentation-boosting and Purifying Device for Decontaminating Pollutants in Surface Runoff from Paddy Field

open access: yesGuan'gai paishui xuebao, 2021
【Background】 The catchment of Tai lake is one of the most important rice production basins in China and rice-wheat rotation is its dominant cultivation. However, excessive use of water and fertilizers has led to nutrient loss and eutrophication.
FU Zishi   +5 more
doaj   +1 more source

Water Quality Variability and Related Factors along the Yangtze River Using Landsat-8

open access: yesRemote Sensing, 2021
Chlorophyll-a (Chl-a), total nitrogen (TN), and total phosphorus (TP) are important indicators to evaluate water environmental quality. Monitoring water quality and its variability can help control water pollution.
Yang He, Shuanggen Jin, Wei Shang
doaj   +1 more source

Direct and indirect analysis of contamination levels in lakes of two adjacent areas [PDF]

open access: yesInternational Journal of Human Capital in Urban Management, 2022
BACKGROUND AND OBJECTIVES:  In the state of Florida there are more than 2.5 million acres of fresh water available; rivers, streams, springs, artificial canals, wetlands, and lakes.
J. Figueroa Jiménez1   +4 more
doaj   +1 more source

Nutrient Atmospheric Deposition on Utah Lake: A Comparison of Sampling and Analytical Methods

open access: yesHydrology, 2021
We describe modified sampling and analysis methods to quantify nutrient atmospheric deposition (AD) and estimate Utah Lake nutrient loading. We address criticisms of previous published collection methods, specifically collection table height, screened ...
Seth Michael Barrus   +6 more
doaj   +1 more source

Features of profile distribution and nutrient stocks in drained peat soils

open access: yesТрансформация экосистем, 2023
The profile distribution and stocks of organic carbon, total nitrogen and phosphorus, as well as C/N ratio, pHKCl and bulk density were studied on drained peat array in soils of various structure and thickness (southern Karelia, Fennoscandia) to assess ...
Inna A. Dubrovina
doaj   +1 more source

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