Results 251 to 260 of about 1,633,413 (298)

Effect of soil aggregation on the biodegradation of phenanthrene aged in soil

Environmental Pollution, 2003
A study was conducted to determine the possible role of soil aggregates in the sequestration of phenanthrene and thus in the declined biodegradation of the hydrocarbon. Phenanthrene aged in Lima loam (2-mm aggregates) showed declined biodegradation with time of aging to the test bacterium P5-2 capable of using sorbed phenanthrene.
K, Nam, J Y, Kim, D I, Oh
openaire   +2 more sources

Dynamics of Soil Aggregation

1966
Publisher Summary This chapter discusses the factors and mechanisms governing the formation and destruction of water-stable soil aggregates. The formation and degradation of water-stable aggregates comprise a complex interrelationship of physical, biological, and chemical reactions.
R.F. Harris, G. Chesters, O.N. Allen
openaire   +1 more source

Chromium Diffusion and Reduction in Soil Aggregates

Environmental Science & Technology, 2001
The distribution of metal contaminants such as chromium in soils can be strongly localized by transport limitations and redox gradients within soil aggregates. Measurements of Cr(VI) diffusion and reduction to Cr(III) were obtained in soil columns representing transects into soil aggregates in order to quantify influences of organic carbon (OC) and ...
T K, Tokunaga, J, Wan, M K, Firestone, T C, Hazen, E, Schwartz, S R, Sutton, M, Newville   +6 more
openaire   +2 more sources

Soil aggregation in the seedbed: A review. I. Properties of aggregates and beds of aggregates

Soil and Tillage Research, 1989
Tillage improves soil conditions for plant growth by altering the aggregate size distribution which affects the mechanical, physical and agronomic properties of the soil. Properties of individual aggregates and how these relate to seedbed performance are reviewed.
M.V. Braunack, A.R. Dexter
openaire   +1 more source

Soil Aggregation in Relation to Various Soil Constituents

Soil Science Society of America Journal, 1957
Abstract The relative importance of diverse factors affecting aggregation in four Wisconsin soil types was studied by multiple regression analyses. Single and combined effects of pH and contents of organic matter, microbial gum, clay, and free iron oxide were considered.
G. Chesters, O. J. Attoe, O. N. Allen
openaire   +1 more source

The Role of Soil Aggregates in Soil Erosion Processes

1998
Aggregate size and stability represent two soil characteristics that may rapidly change in response to changes in climatic conditions and land-use. Their roles in soil erosion processes have always been recognised but their sizes and stability have rarely been used in formula or algorithms Several erosion processes are discussed here and possible roles
Dino Torri, Rossano Ciampalini, Pietro Accolti Gil   +2 more
openaire   +1 more source

Possible role of soil microorganisms in aggregation in soils

Plant and Soil, 1994
In many soils, roots and fungal hyphae, especially those of vesicular arbuscular mycorrhizal (VAM) fungi, stabilize macroaggregates (>250 μm diameter); organic residues, bacteria, polysaccharides and inorganic materials stabilize microaggregates (
openaire   +1 more source

Microplastics sequestered in the soil affect the turnover and stability of soil aggregates: A review

Science of the Total Environment, 2023
Yuefen Li, Keyi Zhang
exaly  

Distribution of Organic Carbon Fractions in Soil Aggregates and Their Contribution to Soil Aggregate Formation of Paddy Soils

Communications in Soil Science and Plant Analysis, 2022
Pinida Kunmala, Wittaya Jindaluang, Timtong Darunsontaya   +2 more
openaire   +1 more source

Effects of mercapto-palygorskite on Cd distribution in soil aggregates and Cd accumulation by wheat in Cd contaminated alkaline soil

Chemosphere, 2021
Yuebing Sun, Xuefeng Liang, Yale Wang
exaly