Results 291 to 300 of about 3,785,691 (352)

An Assessment Scheme for Soil Degradation Caused by Forestry Machinery on Skid Trails in Germany

Soil Science Society of America Journal, 2019
The worldwide demand for wood products has led to an intensification of forestry and to higher weights of forestry machinery. In Germany but also in other countries, timber harvesting is limited to skid trails that minimize soil compaction and ...
R. Riggert, H. Fleige, R. Horn
semanticscholar   +1 more source

Soil degradation studies

1983
The April 22, 1981 draft of the Environmental Protection Agency Guidelines (U.S. Environmental Protection Agency 1981) emphasizes metabolism aspects of soil studies. The intent is to identify breakdown products that might accumulate in soil. A single soil is recommended; it must represent the soil at intended application sites.
D. A. Laskowski, R. L. Swann, P. J. McCall, H. D. Bidlack   +3 more
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Chlorpyrifos degradation in turkish soil

Journal of Environmental Science and Health, Part B, 1999
Degradation of chlorpyrifos was evaluated in laboratory studies. Surface (0-15 cm) and subsurface (40-60 cm) clay loam soils from a pesticide-untreated field were incubated in biometer flasks for 97 days at 25 degrees C. The treatment was 2 micrograms g-1 [2,6-pyridinyl-14C] chlorpyrifos, with 74 kBq radioactivity per 100 g soil flask.
U, Yücel, M, Ylim, K, Gözek, C S, Helling, Y, Sarýkaya   +4 more
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Dieldrin: Degradation by Soil Microorganisms

Science, 1967
An attempt was made to discover microorganisms that degrade dieldrin, an extremely stable chlorinated hydrocarbon insecticide. Examination of more than 500 isolates from soil that had been heavily contaminated with various insecticides revealed the existence of a few microbes that are very active in degrading this compound to various metabolites.
F, Matsumura, G M, Boush
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Soil Degradation

2008
Soil degradation is defined as physical, chemical and biological deterioration of soil, is likely to be the most im-portant problem for human nutritional demand in future. Increasing world population and reduction in agricultural land are serious thread for future. Therefore, in order to satisfy nutritional demands, it is important to protect soil, the
YILMAZ, Erdem, ALAGÖZ, Zeki
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Simazine: Degradation by Soil Microorganisms

Science, 1963
A soil fungus, Aspergillus fumigatus Fres., is effective in the degradation of the herbicide 2-chloro-4,6-bis(ethylamino)- s -triazine (simazine). The degradation of both ring- and chain-labeled (C 14 ) simazine was observed in an unamended and an amended (sucrose ...
D D, Kaufman, P C, Kearney, T J, Sheets
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Triglyceride degradation in soil

Organic Geochemistry, 1996
To study the fate of fatty wastes left by food industries in the soil, tristearin was chosen as a model molecular marker and its biodegradation followed in different types of soil in a laboratory experiment. Samples of three soils (controls and treatments) were incubated for periods of 1-4 weeks, at 20°C.
Hita, C., Parlanti, E., Jambu, P., Joffre, J., Ambles, A.   +4 more
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Soil degradation status in China

World Journal of Biology and Biotechnology, 2018
Soil degradation can be described as either erosion or salinization, depending on the type of soil and the degree of depletion of organic matter in the soil.
Muhammad Muhammad Wajid, Yannong Xiao
semanticscholar   +1 more source

Fungal Communities in Soils: Soil Organic Matter Degradation

2016
Stable isotope probing (SIP) provides the opportunity to label decomposer microorganisms that build their biomass on a specific substrate. In combination with high-throughput sequencing, SIP allows for the identification of fungal community members involved in a particular decomposition process.
Tomáš, Větrovský, Martina, Štursová, Petr, Baldrian   +2 more
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Soil Resources and Soil Degradation

2012
Including rocky surfaces, deserts, and ice-covered areas, there is 130,575,894 km2 land area in the globe. About 38.5 million km2 (29.45 % of the earth’s ice-free land surface) is too dry for human habitation, and about 20.2 million km2 (15.46 %) of the land occuring in the cold tundra zone is not much suitable for normal agriculture.
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