Results 111 to 120 of about 3,612 (259)

Soil Humic Substances and Root Exudates: Key Factors Modulating Cadmium Mobility in Paddy Soils Under Organic Fertilization

Land Degradation &Development, EarlyView.
ABSTRACT Cadmium (Cd) contamination in paddy fields poses a high potential risk of environmental exposure. Organic fertilizer application can promote the efflux of rice root exudates, increase soil organic matter, and induce changes in Cd activity in rice fields.
Liyu Yang, Pan Wu, Wentao Yang, Yonglin Chen, Haonan Jing   +4 more
wiley   +1 more source

Characteristics and Influencing Factors of Soil Shear Strength in Gully Erosion at Different Developmental Segments of Subalpine Meadows

Land Degradation &Development, EarlyView.
ABSTRACT Subalpine meadows play important roles in biodiversity conservation and soil carbon sequestration, but gully erosion poses a serious threat to their ecological stability. Soil shear strength (τ) is a key mechanical parameter for evaluating gully stability and soil resistance to failure. However, the spatial variation in soil shear strength and
Xiaofeng Yang, Keyu Yan, Qingsong Duan, Xiaohan Mei, Pingping Chen, Yanmei Hu, Yanrui Shao, Yanjun Mao, Shufang Li, Zhengfa Chen   +9 more
wiley   +1 more source

Coupling of Physical Protection and Molecular Composition Drives Carbon Sequestration Divergence in Soils Planted With Different Tea Varieties

Land Degradation &Development, EarlyView.
ABSTRACT Tea plantations represent significant carbon (C) sinks in agricultural landscapes, yet how variety‐specific organic inputs are associated with the molecular composition and stability of soil organic carbon (SOC) within aggregate hierarchies remains unclear.
Jingchao Zhou, Lei Du, Tingxuan Li, Yongdong Wang, Huagang Huang, Haiying Yu, Yu Tang, Keji Wang, Xizhou Zhang, Tao Liu   +9 more
wiley   +1 more source

Cadmium (Cd) and Nickel (Ni) Distribution on Size-Fractioned Soil Humic Substance (SHS). [PDF]

Int J Environ Res Public Health, 2019
Hsieh SH, Chiu TP, Huang WS, Chen TC, Yeh YL.   +4 more
europepmc   +1 more source

Refining techniques for high‐frequency monitoring of chlorophyll a fluorescence in estuarine systems

Limnology and Oceanography: Methods, EarlyView.
Abstract Concentrations of the photosynthetic pigment chlorophyll a are commonly used as a proxy for phytoplankton biomass in aquatic systems. Traditional methods for extracting chlorophyll a in discrete samples limit measurement frequency, while in situ sensor technology provides high frequency chlorophyll a fluorescence measurements at a more ...
Nicole Dix, Hannah Nicklay, Jacob Cianci‐Gaskill, Shannon Dunnigan Kimmel, J. Silas Tanner, Kim Cressman, Steven E. McMurray, Yoshimi M. Rii, Rikke Jeppesen, Rachel Guy, Erik Smith   +10 more
wiley   +1 more source

Immune response in honey bees (Apis mellifera) following humic substance feeding. [PDF]

Vet Res Commun
Moskáľová LK, Chomová N, Ratvaj M, Sabo R, Danihlík J, Dostálková S, Saraswathy B, Sørensen M, Latif MA, Park Y, Mudroňová D.   +10 more
europepmc   +1 more source

Fluorescence of Size-Fractioned Humic Substance Extracted from Sediment and Its Effect on the Sorption of Phenanthrene. [PDF]

Int J Environ Res Public Health, 2019
Shi MS, Huang WS, Hsu LF, Yeh YL, Chen TC.   +4 more
europepmc   +1 more source

Ecosystem retrogression enhances cross‐domain microbial stability and increases the genetic potential for nutrient cycling

mLife, EarlyView.
Abstract Ecosystem retrogression drives nutrient depletion, reduced productivity, and profound reorganization of soil microbial communities. Using amplicon sequencing and genome‐resolved metagenomics, we examined how cross‐domain microbial networks and functional gene potential respond to long‐term phosphorus and nitrogen limitation along the well ...
Javier A. Ceja‐Navarro, Dishant Patel, Garret Genco, Alyssa Byer, Daliang Ning, Kenneth H. Wan, Susan E. Celniker, Jizhong Zhou, Paul Dijkstra, Bruce A. Hungate, Jennifer Pett‐Ridge, Eoin L. Brodie   +11 more
wiley   +1 more source

A mechanistic study on the humic substance formation from 5-(hydroxymethyl)-furfural in alkaline solutions. [PDF]

RSC Adv
Gey MN, Schröder U.
europepmc   +1 more source

The Differential Anti-HIV Effect of a New Humic Substance-Derived Preparation in Diverse Cells of the Immune System. [PDF]

Acta Naturae, 2019
Kornilaeva GV, Siniavin AE, Schultz A, Germann A, Moog C, von Briesen H, Turgiev AS, Karamov EV.   +7 more
europepmc   +1 more source