Results 11 to 20 of about 1,134,652 (309)

A microanalysis method for determining total organic carbon in extracts of humic substances. Relationships between total organic carbon and oxidable carbon

open access: yesBioresource Technology, 1996
A method for determining the total organic carbon in aqueous extracts of humic substances is proposed, by using a CNS automatic analyser. Twenty-five NaOH extracts from different organic materials, mainly organic wastes, classified into five groups, were used. The results indicate that the method is easy, rapid, accurate and reproducible.
Sánchez-Monedero, Miguel Ángel   +4 more
openaire   +4 more sources

Short-term effects of different fertilization measures on water-stable aggregates and carbon and nitrogen of tea garden soil [PDF]

open access: yesE3S Web of Conferences, 2020
In order to study the effects of different fertilization measures on spring tea soil in Southwest Sichuan, five treatments were set up, including no fertilization (CK), full chemical nitrogen fertilizer (CN), 50% nitrogen fertilizer +30% organic ...
Huang Shengjie   +6 more
doaj   +1 more source

Nitrogen dynamics in the shallow groundwater of a riparian wetland zone of the Garonne, SW France: nitrate inputs, bacterial densities, organic matter supply and denitrification measurements [PDF]

open access: yes, 2003
This study highlights the role of interactions between surface and sub-surface water of the riparian zone of a large river (the Garonne, SW France). Information is given about the role of surface water in supplying Dissolved Organic Carbon (DOC ) to the
F. Garabétian   +8 more
core   +6 more sources

Evaluation of SWAT-C Model Applicability for TOC Simulation and Analysis of TOC Load Characteristics in the Geumho River Basin [PDF]

open access: yes대한환경공학회지
This study evaluated the applicability of the SWAT-C model for Total Organic Carbon (TOC) simulation on a daily basis in the Geumho River basin and analyzed the spatiotemporal characteristics of TOC loads. Model calibration and validation results showed “
Jeongho Han, Gwanjae Lee
doaj   +1 more source

Organic carbon transport and C/N ratio variations in a large tropical river: Godavari as a case study, India [PDF]

open access: yes, 2005
This study gives an insight into the source of organic carbon and nitrogen in the Godavari river and its tributaries, the yield of organic carbon from the catchment, seasonal variability in their concentration and the ultimate flux of organic and ...
Balakrishna, Keshava, Probst, Jean-Luc
core   +2 more sources

The impact of long-term application of inorganic nitrogen fertilizers and manure on changes of selected properties of organic matter in sandy loam soil [PDF]

open access: yesJournal of Central European Agriculture, 2017
The aim of the research was to assess the effect of long-term application of different doses of nitrogen fertilizers with or without manure to changes in the total organic carbon content, total nitrogen content, evaluation of dissolved organic carbon ...
Barbara MURAWSKA   +5 more
doaj   +1 more source

Shortcut biological nitrogen removal (SBNR) in microbial fuel cells (MFCs) [PDF]

open access: yes, 2017
Microbial Fuel Cells (MFCs) represent nowadays a promising technology for the treatment of industrial wastewater. In this work the Shortcut Nitritation/Denitritation process in H-type MFC was investigated.
Bavasso, Irene   +3 more
core   +1 more source

The color of refractory organic carbon

open access: yesBSGF - Earth Sciences Bulletin, 2018
Organic matter studies find an echo within different topics such as biogeochemical cycles, processes occurring in continental surfaces, anthropogenic activities, climate science, earth and planetary sciences, etc.
Debret Maxime   +5 more
doaj   +1 more source

Characteristics and factors influencing soil organic carbon composition by vegetation type in spoil heaps

open access: yesFrontiers in Plant Science, 2023
IntroductionThe variation of organic carbon content in spoil heaps is closely related to improving soil structure, maintaining soil fertility, and regulating soil carbon cycling balance.
Yiwen Yao   +11 more
doaj   +1 more source

Assessment of soil quality after constructing a closure dam on a river [PDF]

open access: yesInternational Journal of Human Capital in Urban Management, 2023
BACKGROUND AND OBJECTIVE: Reducing the salinity intrusion from sea water, a closure dam has been constructed on Little Feni River at Musapur Union in 2016.
M.S Khan   +3 more
doaj   +1 more source

Home - About - Disclaimer - Privacy