scholarly journals Aggregate sizes regulate the microbial community patterns in sandy soil profile

2021 ◽  
Author(s):  
Yifei Sun ◽  
Meiling Sun ◽  
Guowei Chen ◽  
Xin Chen ◽  
Baoguo Li ◽  
...  
Keyword(s):  
Microbial Community ◽  
Sandy Soil ◽  
Soil Profile ◽  
Community Patterns

scholarly journals Assessing the Microbial Community and Functional Genes in a Vertical Soil Profile with Long-Term Arsenic Contamination

PLoS ONE ◽  
2012 ◽  
Vol 7 (11) ◽  
pp. e50507 ◽  
Author(s):  
Jinbo Xiong ◽  
Zhili He ◽  
Joy D. Van Nostrand ◽  
Guosheng Luo ◽  
Shuxin Tu ◽  
...  
Keyword(s):  
Microbial Community ◽  
Soil Profile ◽  
Arsenic Contamination ◽  
Functional Genes

scholarly journals Assessing Microbial Community Patterns During Incipient Soil Formation From Basalt

2019 ◽  
Vol 124 (4) ◽  
pp. 941-958 ◽  
Author(s):  
Aditi Sengupta ◽  
James C. Stegen ◽  
Antonio A. Meira Neto ◽  
Yadi Wang ◽  
Julia W. Neilson ◽  
...  
Keyword(s):  
Microbial Community ◽  
Soil Formation ◽  
Community Patterns

Subsoil 15N-N2O Concentrations in a Sandy Soil Profile After Application of 15N-fertilizer

2005 ◽  
Vol 72 (1) ◽  
pp. 13-25 ◽  
Author(s):  
Jan Willem van Groenigen ◽  
Pieter Jan Georgius ◽  
Chris van Kessel ◽  
Eduard W.J. Hummelink ◽  
Gerard L. Velthof ◽  
...  
Keyword(s):  
Sandy Soil ◽  
Soil Profile ◽  
15N Fertilizer

scholarly journals Distribution of water in sandy soil applied by drip

2014 ◽  
Vol 34 (6) ◽  
pp. 1175-1185 ◽  
Author(s):  
Antônio C. A. Gonçalves ◽  
Daniel S. Alves ◽  
Patricia A. A. Marques ◽  
Marcos V. Folegatti ◽  
Jefferson V. José
Keyword(s):  
Sandy Soil ◽  
Soil Profile ◽  
Water Distribution ◽  
Soil Surface ◽  
State University ◽  
Agricultural Systems ◽  
Water Losses ◽  
Local Characteristics ◽  
Irrigation Time ◽  
Installation Depth

The search for the use of water with high levels of efficiency has motivated the use of drip irrigation in several agricultural systems. However, for the efficiency be ensured, it is necessary that the water distribution in the soil profile must to be known in more details. As it is a highly variable process, function of the local characteristics, is essential the study of each case. The objective of this research was evaluating the water distribution in the soil profile, from drippers installed in surface and 0.15 m below the soil surface. The experiment was realized in the Technical Center of Irrigation (TCI) of the State University of Maringá - PR. The water monitoring in the soil profile was done with TDR probes installed in a box containing sandy soil, at the depths from 0.05 to 0.80 m; and 0.05 to 0.35 m of lateral spacing, at intervals of 0.05 m, totalizing 30 probes. The treatments were differentiated in relation of the installation depth of the emitters (0.0 and 0.15 m) and flow (1, 2, 4, 6, and 8 L h-1). The irrigation time was 8 hours continuous with reading of the TDR probes each 30 minutes. The results allowed concluding that the wet area with the emitter positioned on the soil surface was directly proportional to the flow increase. For the underground dripper, this area was substantially smaller and the water losses by percolation were higher, mainly to the flows higher than 4 L h-1, which provided to unacceptable water losses that should be avoided.

Microbial community responses to different volatile petroleum hydrocarbon class mixtures in an aerobic sandy soil

2020 ◽  
Vol 264 ◽  
pp. 114738 ◽  
Author(s):  
George Mangse ◽  
David Werner ◽  
Paola Meynet ◽  
Chukwuma C. Ogbaga
Keyword(s):  
Microbial Community ◽  
Sandy Soil ◽  
Petroleum Hydrocarbon ◽  
Community Responses

Spatial heterogeneity of a microbial community in a sandy soil ecosystem

Pedobiologia ◽  
2013 ◽  
Vol 56 (4-6) ◽  
pp. 195-203 ◽  
Author(s):  
Varsik Martirosyan ◽  
Racheli Ehrlich ◽  
Yaffa Frend ◽  
Gineta Barness ◽  
Yosef Steinberger
Keyword(s):  
Microbial Community ◽  
Spatial Heterogeneity ◽  
Sandy Soil ◽  
Soil Ecosystem

scholarly journals Transitory microbial habitat in the hyperarid Atacama Desert

2018 ◽  
Vol 115 (11) ◽  
pp. 2670-2675 ◽  
Author(s):  
Dirk Schulze-Makuch ◽  
Dirk Wagner ◽  
Samuel P. Kounaves ◽  
Kai Mangelsdorf ◽  
Kevin G. Devine ◽  
...  
Keyword(s):  
Microbial Community ◽  
Extreme Environments ◽  
Atacama Desert ◽  
Chemical Characterization ◽  
Soil Parameters ◽  
Rain Event ◽  
Community Patterns ◽  
Microbial Habitat ◽  
Lines Of Evidence ◽  
Active Microbial Community

Traces of life are nearly ubiquitous on Earth. However, a central unresolved question is whether these traces always indicate an active microbial community or whether, in extreme environments, such as hyperarid deserts, they instead reflect just dormant or dead cells. Although microbial biomass and diversity decrease with increasing aridity in the Atacama Desert, we provide multiple lines of evidence for the presence of an at times metabolically active, microbial community in one of the driest places on Earth. We base this observation on four major lines of evidence: (i) a physico-chemical characterization of the soil habitability after an exceptional rain event, (ii) identified biomolecules indicative of potentially active cells [e.g., presence of ATP, phospholipid fatty acids (PLFAs), metabolites, and enzymatic activity], (iii) measurements of in situ replication rates of genomes of uncultivated bacteria reconstructed from selected samples, and (iv) microbial community patterns specific to soil parameters and depths. We infer that the microbial populations have undergone selection and adaptation in response to their specific soil microenvironment and in particular to the degree of aridity. Collectively, our results highlight that even the hyperarid Atacama Desert can provide a habitable environment for microorganisms that allows them to become metabolically active following an episodic increase in moisture and that once it decreases, so does the activity of the microbiota. These results have implications for the prospect of life on other planets such as Mars, which has transitioned from an earlier wetter environment to today’s extreme hyperaridity.

Microbial community structure and functionality under peanut-based cropping systems in a sandy soil

2007 ◽  
Vol 44 (5) ◽  
pp. 681-692 ◽  
Author(s):  
V. Acosta-Martínez ◽  
D. Rowland ◽  
R. B. Sorensen ◽  
K. M. Yeater
Keyword(s):  
Community Structure ◽  
Microbial Community ◽  
Sandy Soil ◽  
Microbial Community Structure ◽  
Cropping Systems

scholarly journals Microbial Community Composition as Affected by Dryland Cropping Systems and Tillage in a Semiarid Sandy Soil

Diversity ◽  
2010 ◽  
Vol 2 (6) ◽  
pp. 910-931 ◽  
Author(s):  
Verónica Acosta-Martínez ◽  
Scot E. Dowd ◽  
Colin W. Bell ◽  
Robert Lascano ◽  
Jill D. Booker ◽  
...  
Keyword(s):  
Microbial Community ◽  
Community Composition ◽  
Sandy Soil ◽  
Cropping Systems ◽  
Microbial Community Composition
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