Results 271 to 280 of about 9,135,926 (331)

Vertical profile of 137Cs in soil

Applied Radiation and Isotopes, 2004
In this paper, a vertical distribution of 137Cs in undisturbed soil was investigated experimentally and theoretically. Soil samples were taken from the surroundings of the city of Kragujevac in central Serbia during spring-summer of 2001. The sampling locations were chosen in such a way that the influence of soil characteristics on depth distribution ...
D, Krstić, D, Nikezić, N, Stevanović, M, Jelić   +3 more
openaire   +2 more sources

Soil Profile Classes

, 2018
The previous chapter discussed the possibility of using pedometric techniques to make numerical classifications of soil material and soil layers. Of course it is not a step too far to use pedometric techniques to make classifications of entire profiles also. That is the subject of this chapter.
N. Odgers, A. McBratney, F. Carre
semanticscholar   +3 more sources

Fungi and bacteria respond differently to changing environmental conditions within a soil profile

Soil Biology and Biochemistry, 2019
Contrasting environmental conditions in topsoil and subsoil determine both abundance and function of soil microbial communities, affecting carbon (C) dynamics throughout the entire soil profile.
Sebastian Preusser, C. Poll, S. Marhan, G. Angst, C. Mueller, J. Bachmann, E. Kandeler   +6 more
semanticscholar   +1 more source

Effects of agricultural land use change on organic carbon and its labile fractions in the soil profile in an urban agricultural area

Land Degradation and Development, 2019
The properties of soil organic carbon (SOC) required for carbon sequestration and nutrient availability are contradictory, and the changes in SOC caused by agricultural land use changes remain elusive.
You-Lin Luo, Qi-Quan Li, Jie Shen, Changquan Wang, Bing Li, S. Yuan, Bin Zhao, Huanxiu Li, Ju-wei Zhao, Ling-Ke Guo, Shan Li, Yu-Ting He   +11 more
semanticscholar   +1 more source

Soil acidification of the soil profile across Chengdu Plain of China from the 1980s to 2010s.

Science of the Total Environment, 2019
Soil acidification is a major environmental issue associated with intensive agricultural land use. Rapid urbanization has inevitably caused great changes in agricultural land use around urban areas.
Qi-Quan Li, Aiwen Li, Xuelian Yu, Tianfei Dai, Yue-nuan Peng, Dagang Yuan, Bin Zhao, Q. Tao, Changquan Wang, Bing Li, Xue-Song Gao, Yiding Li, De-Yong Wu, Qiang Xu   +13 more
semanticscholar   +1 more source

How qualitative spectral information can improve soil profile classification?

Journal of Near Infrared Spectroscopy, 2019
Soil classification is important to organize the knowledge of soil characteristics. Spectroscopy has increased in the last years as a technique for descriptive and quantitative evaluation of soils.
K. P. Marques, R. Rizzo, André Carnieletto Dotto, A. B. Souza, Fellipe A. O. Mello, Luiz Gm, L. C. D. dos Anjos, J. A. Demattê   +7 more
semanticscholar   +1 more source

Effects of shrubs on soil nutrients and enzymatic activities over a 0–100 cm soil profile in the desert-loess transition zone

CATENA, 2019
The creation of “fertile islands” beneath shrubs in dryland ecosystems has been widely reported worldwide and is the major factor influencing ecosystem structure and function.
Yu-Fei Yao, M. Shao, Xiao-Li Fu, Xiang Wang, Xiaorong Wei   +4 more
semanticscholar   +1 more source

Drainage of Soil Profiles

Journal of the Irrigation and Drainage Division, 1971
The scaled approximations of Brooks and Corey for water content versus capillary pressure and capillary conductivity versus water content were used to obtain a scalded diffusion function that was dependent only upon the pore-size distribution index, λ. A predictor-corrector finite difference scheme was used to obtain numerical solutions for the scaled ...
Royal H. Brooks, Benedict Ng, Gilbert L. Corey, Arthur T. Corey   +3 more
openaire   +1 more source

Digital mapping of a soil profile

European Journal of Soil Science, 2018
Detailed information on soil profiles is required for site characterization, soil mapping, studies on pedogenesis, soil–landscape modelling and soil classification.
Ya-Kun Zhang, Alfred E. Hartemink
semanticscholar   +1 more source

Identification of soil profile classes using depth-weighted visible–near-infrared spectral reflectance

Geoderma, 2018
Soil visible–near-infrared (Vis-NIR) diffuse reflectance, which can be collected rapidly and cheaply, contains rich information of the properties that are useful for soil taxonomic diagnosis.
Xian-Li Xie, An-Bo Li
semanticscholar   +1 more source