Results 121 to 130 of about 587,836 (298)

Climate Change and Reduction of Soil Organic Layer Thickness Increases Drought Risk in Mountain Forests of the Northern Alps

Journal of Plant Nutrition and Soil Science, EarlyView.
ABSTRACT Background On ca. 10% of the forested sites in the Bavarian Alps (Germany) mountain, forest soils (so‐called folic histosols) are characterized by thick organic layers overlying poorly weathered calcareous parent material. Aim These organic layers play a critical role in releasing water and nutrients for vegetation, yet they are also sensitive
Marc Kühnbach, Axel Wellpott, Rupert Seidl, Hans‐Joachim Klemmt, Klaas Wellhausen, Jörg Ewald   +5 more
wiley   +1 more source

Quality and Safety of Extracted Humic Substances as Fundamental Factor of Natural Regulation for the Sustainable Development

Agricultural & Rural Studies
Humic substances as natural biogeochemical macromolecules have been formed over tens of millions of years as a result of the processes of natural destruction of biological systems with a high degree of chemical diversity.
Maksym Melnychuk, Oleksii Petrov, Konstantin Torop, Igor Jakimenko, Linjun Xun, Husheng Zhao   +5 more
doaj  

Paul Vageler (1882–1963) and His Pivotal Role in Germany's “Colonial Soil Science”

Journal of Plant Nutrition and Soil Science, EarlyView.
ABSTRACT This essay examines the role and activities of the German–Brazilian soil scientist Paul Vageler (1882–1963) in Germany's colonial policies and ambitions between 1909 and 1945. It highlights his scholarly achievements during the German Empire (with colonial possessions), the Weimar Republic (colonial revisionist thinking following the loss of ...
Armin Skowronek, Karl‐Heinz Feger
wiley   +1 more source

Photochemical Properties of Humic Substances: Toward a Better Characterization of the Photosensitizing Chromophores (Localisation, Fluorescence Characteristics)

, 2010
The ability of humic substances (HS) to generate reactive species under excitation by solar light is an environmentally important property leading to the possible elimination of organic pollutants in all the terrestrial compartments.
CIAVATTA, CLAUDIO, CAVANI, LUCIANO, C. Coelho, A. ter Halle, G. Guyot, C. Richard, O. Trubetskaya, O. Trubetskoj   +7 more
core   +1 more source

The molecular composition of humic acids, as reflected by FTICR-MS, varies systematically in terms of the total C storage of the corresponding soils

, 2018
2 pagínas.-- 2 figuras.-- 4 referencias.-- Comunicación oral preesentada en el 19th International Conference of Humic Substances and their Contribution to the Climate Change Mitigation 16–21 September 2018 Albena Resort, BulgariaLong-term stabilization ...
Álvarez, Ana María, Hatcher, Patrick G., Waggoner, Derek C., Almendros Martín, Gonzalo, Jiménez-González, Marco A., González-Vila, Francisco Javier   +5 more
core  

Temporal Dynamics of Soil Organic Carbon Contents in Long‐Term Monitored Arable Sites in Lower Saxony, Germany

Journal of Plant Nutrition and Soil Science, EarlyView.
ABSTRACT Background Temporal changes in soil organic carbon (SOC) contents in agricultural soils are variable, and underlying drivers are not sufficiently understood. Aim The objectives were to describe the long‐term dynamics of SOC contents at 41 sites in Lower Saxony, Germany, and to analyze the relationships between estimated long‐term changes of ...
Bernard Ludwig, Hans‐Peter Piepho, Heinrich Höper   +2 more
wiley   +1 more source

Multi-method Study on Aquatic Humic Substances from the "Rio Negro" - Amazonas State/Brazil: Emphasis on Molecular-Size Classification of their Metal Contents

Journal of the Brazilian Chemical Society, 1999
The aquatic humic substances investigated in this study were conventionally isolated from Rio Negro waters - Amazonas State/Brazil by means of the collector XAD 8.
Rocha J.C., Sargentini Jr É., Toscano I.A.S., Rosa A.H., Burba P.   +4 more
doaj  

Microbial and Non‐Microbial Biostimulants for Soil Health in Managed Agricultural Systems: A Scientometric Analysis of Bioinputs From 2021 to 2025

Journal of Plant Nutrition and Soil Science, EarlyView.
ABSTRACT Background Biostimulants and related bioinputs encompass microbial and non‐microbial strategies used to improve plant performance, nutrient‐use efficiency, stress resilience, and soil functioning. Aim For this study, plant biostimulants were operationally defined as substances or microorganisms applied to enhance nutrient‐use efficiency ...
Enoch de Souza Ferreira, Simone Cristina Freitas de Carvalho, Carla Natanieli de Oliveira Batista, Diego José da Costa Bandeira, Priscila Pascali da Costa Bandeira, Felipe Guimaraes Leitão da Silva, Antonio Carlos da Silva, Allysson Régis Praxedes Moreira, Darliane Cristina Soares de Souza, Eulene Francisco da Silva, Carolina Malala Martins Souza, Rafael Oliveira Batista, Leilson Costa Grangeiro, Luiz Fernando de Sousa Antunes   +13 more
wiley   +1 more source

Interactions between plant-root exudates and soils in extracting humic-like substances

, 2010
Plants have evolved with roots in close contact with the solid phase of the soil therefore organic acid root exudates, in plant–root–microbial interactions, have attracted much interest not so much in terms of carbon source but as ‘signals’ for ...
ERTANI, ANDREA, NARDI, SERENELLA, PIZZEGHELLO, DIEGO, MUSCOLO A   +3 more
core  

Ngarrawa (mound spring) sediments as archives of Holocene environmental change in arid central Australia: Insights from Itrax XRF scanning

Journal of Quaternary Science, EarlyView.
ABSTRACT Central Australia's ngarrawa, or ‘mound springs’, are unique hydrological systems that serve as some of the only near‐permanent sources of water and continuous sediment deposition in Australia's arid interior. As such, they hold significant potential as palaeo‐climate and ‐environmental archives in a region where many aspects of past climate ...
Fletcher C. Nixon, Jonathan J. Tyler, Patricia S. Gadd, Quan Hua   +3 more
wiley   +1 more source