SOIL PROPERTIES AFFECTING TOXICITY OF ZINC TO SOIL MICROBIAL PROPERTIES IN LABORATORY-SPIKED AND FIELD-CONTAMINATED SOILS

10.1897/04-27 ◽  
2004 ◽  
Vol 23 (11) ◽  
pp. 2633 ◽  
Author(s):  
Erik Smolders ◽  
Jurgen Buekers ◽  
Ian Oliver ◽  
Mike J. McLaughlin
Keyword(s):  
Soil Properties ◽  
Contaminated Soils ◽  
Microbial Properties ◽  
Soil Microbial ◽  
Soil Microbial Properties

scholarly journals Chemical Fractionation Of Cu And Zn And Their Impacts On Microbial Properties In Slightly Contaminated Soils

2013 ◽  
Vol 3 (1) ◽  
pp. 20-25 ◽  
Author(s):  
Liu Aiju ◽  
Wang Honghai ◽  
Gao Peiling ◽  
Xu Hong-zhi
Keyword(s):  
Correlation Analysis ◽  
Contaminated Soils ◽  
Residual Fraction ◽  
Chemical Fractionation ◽  
Agricultural Field ◽  
Microbial Properties ◽  
Soil Microbial ◽  
Fractionation Analysis ◽  
Soil Microbial Properties ◽  
Cu And Zn

Chemical fractionation of Cu and Zn in bulk soil and its effects on soil microbial properties were determined in Cu and Zn contaminated soils (Cu: 35.57~46.37 mg·kg-1, Zn: 74.33~127.20 mg·kg-1) sampled from an agricultural field in outskirts of Zibo, China during the month of September, 2011. A sequential extraction technique (SET) was used for metals chemical fractionation analysis in soils and a correlation analysis was applied to determinate the effects of metal on soil microbial properties. Chemical speciation showed that Cu and Zn were mostly present in the residual fraction and their concentrations in the most labile fraction (acid soluble fraction) were the lowest in the investigated soils. However, the correlation analysis indicated that the labile forms of Cu/Zn, such as its acid soluble, reducible or oxidizable fractions, were usually significantly negatively correlated with the tested microbial activities at 0.05 or 0.01 probability levels. These results indicate that the metal labile fractions could exert an inhibitory effect on the soil microbial parameters even in the minor contaminated soils. Int. J. Agril. Res. Innov. & Tech. 3 (1): 20-25, June, 2013 DOI: http://dx.doi.org/10.3329/ijarit.v3i1.16045

scholarly journals Soil microbial properties of subalpine steppe soils at different grazing intensities in the Chinese Altai Mountains

2021 ◽  
Vol 11 (1) ◽  
Author(s):  
Sven Goenster-Jordan ◽  
Mariko Ingold ◽  
Ramia Jannoura ◽  
Andreas Buerkert ◽  
Rainer Georg Joergensen
Keyword(s):  
Microbial Biomass ◽  
Soil Properties ◽  
Block Design ◽  
Stocking Density ◽  
Grazing Intensity ◽  
Microbial Biomass C ◽  
Altai Mountains ◽  
Microbial Properties ◽  
Soil Microbial ◽  
Soil Microbial Properties

AbstractLong-term provision of ecosystem services by grasslands is threatened by increasing stocking densities. The functions of grassland ecosystems depend on a mutual relationship between aboveground and belowground biota. While the effects of increasing stocking density on plant biomass are well studied, little is known about its impact on soil microbial properties. To fill this knowledge gap a grazing experiment was conducted on a summer pasture in the Chinese Altai Mountains during the summers of 2014 and 2015 using a randomized block design with stocking densities of 0, 8, 16, and 24 sheep ha−1 replicated four times. After two summer grazing periods (each 56 days), topsoil samples (1–7 cm) were taken in September 2015 and analyzed for major physical, chemical, and microbial soil properties. Except for the metabolic quotient (qCO2; p < 0.05), the examined soil properties remained unaffected by the increasing stocking densities, likely due to high spatial variability. The qCO2 declined from 13.5 mg CO2–C g−1 microbial biomass C d−1 at zero grazing to 12.2 mg CO2–C g−1 microbial biomass C d−1 at a stocking density of 24 sheep ha−1. Low values of qCO2 indicate an aged and dormant microbial community that diverts less soil organic carbon (SOC) to catabolic processes within their cells, characteristic for C limiting conditions. The aboveground biomass affected by grazing intensity correlated positively with SOC (rs = 0.60, p = 0.015) and ergosterol (rs = 0.76, p = 0.001) pointing indirectly to the effect of stocking density. Additionally to the relatively high values of qCO2, highest values of SOC (39.2 mg g−1 soil), ergosterol (6.01 µg g−1 soil), and basal respiration (10.7 µg g−1 soil d−1) were observed at a stocking density of 8 sheep ha−1 indicating that a low grazing intensity is recommendable to avoid soil degradation.

scholarly journals Disentangling the ‘brown world’ faecal-detritus interaction web: dung beetle effects on soil microbial properties

Oikos ◽  
2015 ◽  
Vol 125 (5) ◽  
pp. 629-635 ◽  
Author(s):  
Eleanor M. Slade ◽  
Tomas Roslin ◽  
Minna Santalahti ◽  
Thomas Bell
Keyword(s):  
Dung Beetle ◽  
Microbial Properties ◽  
Soil Microbial ◽  
Soil Microbial Properties ◽  
Interaction Web

scholarly journals Effects of crop type on soil microbial properties in the cropland of the Jianghan plain of China

2018 ◽  
Vol 64 (No. 9) ◽  
pp. 421-426
Author(s):  
Li Jun ◽  
Liu Lixin ◽  
Zhang Chunlei ◽  
Chen Chang ◽  
Lu Guangyuan ◽  
...  
Keyword(s):  
Triticum Aestivum L ◽  
Invertase Activity ◽  
Shannon Index ◽  
Available Phosphorus ◽  
Jianghan Plain ◽  
Brassica Napus L ◽  
Microbial Properties ◽  
Soil Microbial ◽  
Soil Available Phosphorus ◽  
Soil Microbial Properties

Soil microbial properties are varied by growing different crops, ultimately reflecting the growth and reproduction of crops. In this study, two types of oilseed rape (Brassica napus L. ZS11 and ZY821) and wheat (Triticum aestivum L. ZM9023) were planted in the Jianghan plain of China. Rhizosphere soil samples were collected three months after sowing. Soil physicochemical properties, enzyme activities and microbial diversity were determined. The results showed that soil available phosphorus significantly increased from 25.57 mg/kg (ZM9023) to 33.20 mg/kg (ZS11) and 35.72 mg/kg (ZY821), respectively. Invertase activity of ZS821 (0.86 mg glucose/g) was significantly lower than in ZS11 (1.04 mg glucose/g). Acid phosphatase activity under planting rapes was significantly higher than that under wheat. Urease activities significantly increased from 40.88 mg NH<sub>4</sub><sup>+</sup>-N/g soil/24 h (NFP) to 49.04 mg NH<sub>4</sub><sup>+</sup>-N/g soil/24 h (FNP) and 51.28 mg NH<sub>4</sub><sup>+</sup>-N/g soil/24 h (ZM9023), 51.60 mg NH<sub>4</sub><sup>+</sup>-N/g soil/24 h (ZY821) and 52.28 mg NH<sub>4</sub><sup>+</sup>-N/g soil/24 h (ZS11), respectively. The ACE (abundance based coverage estimator) and Chao1 indexes of bacteria of ZS11 were lower than ZY821, which were similar to ZM9023. Fertilization increased soil bacterial ACE and Chao1 indexes. However, ACE and Chao1, Shannon and Simpson indexes of soil fungi for ZS11 were significantly higher than in ZY821, which were similar to ZM9023 (except for the Shannon index).

scholarly journals Convergence of soil microbial properties after plant colonization of an experimental plant diversity gradient

BMC Ecology ◽  
2016 ◽  
Vol 16 (1) ◽  
Author(s):  
Katja Steinauer ◽  
Britta Jensen ◽  
Tanja Strecker ◽  
Enrica de Luca ◽  
Stefan Scheu ◽  
...  
Keyword(s):  
Plant Diversity ◽  
Plant Colonization ◽  
Experimental Plant ◽  
Microbial Properties ◽  
Soil Microbial ◽  
Diversity Gradient ◽  
Soil Microbial Properties

scholarly journals Effects of Plant Diversity, Functional Group Composition, and Fertilization on Soil Microbial Properties in Experimental Grassland

PLoS ONE ◽  
2015 ◽  
Vol 10 (5) ◽  
pp. e0125678 ◽  
Author(s):  
Tanja Strecker ◽  
Romain L. Barnard ◽  
Pascal A. Niklaus ◽  
Michael Scherer-Lorenzen ◽  
Alexandra Weigelt ◽  
...  
Keyword(s):  
Plant Diversity ◽  
Functional Group ◽  
Group Composition ◽  
Microbial Properties ◽  
Soil Microbial ◽  
Soil Microbial Properties

Temporal Variation of Soil Microbial Properties in a Corn–Wheat–Soybean System

2019 ◽  
Vol 83 (6) ◽  
pp. 1696-1711
Author(s):  
Che‐Jen Hsiao ◽  
Gretchen F. Sassenrath ◽  
Lydia H. Zeglin ◽  
Ganga M. Hettiarachchi ◽  
Charles W. Rice
Keyword(s):  
Temporal Variation ◽  
Microbial Properties ◽  
Soil Microbial ◽  
Soil Microbial Properties
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