Results 41 to 50 of about 66,486 (308)

The Effect of Land Use Change on Soil Type and Clay Mineralogy in Safashahr Area, Fars Province

مجله آب و خاک, 2015
Nowadays, changing the rangelands to agriculture and garden is common. To investigate the impact of land use change on the soils type and clay mineralogy, four land uses including rangeland with poor vegetation, agricultural land, new and old apple ...
R. Karimi, M.H. Salehi, Z. Mosleh
doaj   +1 more source

Mineral composition and its relations to readily available element concentrations in cultivated soils of Finland

Acta Agriculturae Scandinavica. Section B, Soil and Plant Science, 2022
Mineral composition is a fundamental feature that affects the properties and functions of soil through physical, chemical and biological interactions. However, comprehensive knowledge on the mineralogy of agricultural topsoils of Finland has been lacking.
Riikka Keskinen, Stephen Hillier, Eero Liski, Visa Nuutinen, Mercy Nyambura, Mia Tiljander   +5 more
doaj   +1 more source

Investigation of the failure characteristics of fissure tunnels under dynamic and static combinations

Deep Underground Science and Engineering, EarlyView.
This article aims to investigate the dynamic fracture response of fractured tunnel models under zero geological stress through physical experiments and numerical simulations. It further simulates the dynamic fracture characteristics of fractured tunnel models under geological stress ranging from 0 to 2.5 MPa using the numerical software AUTODYN ...
Peng Ying, Yu Ying, Xiaohan Li, Han Zhao, Kewei Yu, Zheming Zhu, Lei Zhou, Xibin Li   +7 more
wiley   +1 more source

Methods of soil organic carbon determination in Brazilian savannah soils

Scientia Agricola, 2014
Several methods exist for determining soil organic carbon, and each one has its own advantages and limitations. Consequently, a comparison of the experimental results obtained when these methods are employed is hampered, causing problems in the ...
Juliana Hiromi Sato, Cícero Célio de Figueiredo, Robélio Leandro Marchão, Beáta Emöke Madari, Luiz Eduardo Celino Benedito, Jader Galba Busato, Diego Mendes de Souza   +6 more
doaj   +1 more source

Soil mineralogy and chemical properties as a basis for establishing nutrient management strategies in volcanic soils of Mount Ceremai, West Java

Journal of Degraded and Mining Lands Management, 2020
Soil mineralogy and its effect on chemical properties of volcanic soils located in Mount Ceremai has not been studied thoroughly. The objective of the study was to assess soil mineralogy and chemical properties of volcanic soils derived from different ...
S Sukarman, Padana Aperta Barus, Rachmat Abdul Gani   +2 more
doaj   +1 more source

Geological and geotechnical challenges on the Great Dyke of Zimbabwe and their impact on hardrock pillar design

Deep Underground Science and Engineering, EarlyView.
The Great Dyke of Zimbabwe is notable for its rich platinum group metal deposits but poses significant geological and geotechnical challenges due to its complex rock types and structural features. Traditional pillar design methods are insufficient for addressing these complexities; the study suggests incorporating advanced techniques such as machine ...
Tawanda Zvarivadza, Hendrik Grobler, Moshood Onifade, Manoj Khandelwal   +3 more
wiley   +1 more source

Relações pedomorfogeológicas nas chapadas elevadas do Distrito Federal Pedomorphogeological relations in the chapadas elevadas of the Distrito Federal, Brazil

Revista Brasileira de Ciência do Solo, 2009
A caracterização pedológica e o entendimento das relações entre pedologia, geologia e geomorfologia são importantes para a compreensão da distribuição dos solos numa paisagem.
Inara Oliveira Barbosa, Marilusa Pinto Coelho Lacerda, Marina Rolim Bilich   +2 more
doaj   +1 more source

Real‐time monitoring of tunnel structures using digital twin and artificial intelligence: A short overview

Deep Underground Science and Engineering, EarlyView.
How artificial intelligence (AI) and digital twin (DT) technologies are revolutionizing tunnel surveillance, offering proactive maintenance strategies and enhanced safety protocols. It explores AI's analytical power and DT's virtual replicas of infrastructure, emphasizing their role in optimizing maintenance and safety in tunnel management.
Mohammad Afrazi, Danial Jahed Armaghani, Hossein Afrazi, Hadi Fattahi, Pijush Samui   +4 more
wiley   +1 more source

Study on fracture parameter calibration and failure characteristics of rock with hole and crack

Deep Underground Science and Engineering, EarlyView.
The SIF and plastic zone equations for a single hole and crack have been derived. The model's failure state leads to the identification of four types of cracks. The plastic zone increases with increased brittleness and decreased crack length. Abstract Cracks within the surrounding rock of roadways significantly affect their stability and failure ...
Shaochi Peng, Wensong Wang
wiley   +1 more source

Effect of soil temperature and moisture on degradation of the oxyfluorfen herbicide

Cogent Food & Agriculture
We have studied the combined effect of temperature and moisture on a soil contaminated with the oxyfluorfen herbicide at a dose of 4 l ha−1 in terms of the biochemical activity (dehydrogenase activity and ergosterol content) of said soil, as well as on ...
Patricia Paneque, Isidoro Gómez, Juan Parrado, José M. Orts, Manuel Tejada   +4 more
doaj   +1 more source