scholarly journals Organic carbon dynamics and enzyme activities in agricultural soils amended with biogas slurry, liquid manure and sewage sludge

2012 ◽  
Vol 03 (01) ◽  
pp. 104-113 ◽  
Author(s):  
Britta Stumpe ◽  
Steffen Werner ◽  
Robert Jung ◽  
Stefanie Heinze ◽  
Elisabeth Jüschke ◽  
...  
Keyword(s):  
Sewage Sludge ◽  
Organic Carbon ◽  
Enzyme Activities ◽  
Agricultural Soils ◽  
Carbon Dynamics ◽  
Biogas Slurry ◽  
Liquid Manure

scholarly journals Organic matter mineralisation in contrasting agricultural soils amended with sewage sludge .

2014 ◽  
Vol 4 ◽  
Author(s):  
Jose Navarro Pedreño ◽  
Ignacio Gómez Lucas ◽  
Jose Martín Soriano Disla
Keyword(s):  
Organic Matter ◽  
Single Dose ◽  
Sewage Sludge ◽  
Organic Carbon ◽  
Soil Organic Carbon ◽  
Agricultural Soils ◽  
Dry Weight ◽  
Soil C ◽  
Multiple Sensor ◽  
Sludge Application

The mineralisation of organic matter (OM) when sewage sludge was used as amendment in 70 contrasting agricultural soils from Spain was analysed. Soils received a single dose of sewage sludge (equivalent to 50t dry weight ha<sup>-1</sup>) and the O<sub>2</sub> consumption was continuously monitored for 30 days using a multiple sensor respirometer in a laboratory experiment. The cumulative O<sub>2</sub> consumption and rates after 8 and 30 days of incubation (O<sub>2 cum</sub> 8d, 30d and O<sub>2 rate</sub> 8d, 30d), the respiratory quotient (RQ), the maximum O<sub>2</sub> rates over the incubation period (O<sub>2 max</sub>) and time from the beginning of the incubation when O<sub>2 max</sub> occurred (T<sub>max</sub>), were determined in both amended and non-amended soils. Sewage sludge application resulted in increased values for O<sub>2 max</sub>, O<sub>2 rate</sub> 8d, and O<sub>2 cum</sub> 30d. Differences were minor for T<sub>max</sub>, RQ 8d and O<sub>2 rate</sub> 30d. A considerable amount of the initial OM applied was mineralised during the first 8 days. Organic matter decomposition (as expressed by O<sub>2 cum</sub> 30d) was favoured in soils with high values of pH, carbonates, soil organic carbon and low values of amorphous Mn. Soils with these characteristics may potentially lose soil C after sewage sludge application.

scholarly journals Potential Sources of Anthropogenic Copper Inputs to European Agricultural Soils

2018 ◽  
Vol 10 (7) ◽  
pp. 2380 ◽  
Author(s):  
Panos Panagos ◽  
Cristiano Ballabio ◽  
Emanuele Lugato ◽  
Arwyn Jones ◽  
Pasquale Borrelli ◽  
...  
Keyword(s):  
Sewage Sludge ◽  
Agricultural Soil ◽  
Agricultural Soils ◽  
Anthropogenic Activities ◽  
Anthropogenic Sources ◽  
Copper Accumulation ◽  
The European Union ◽  
Liquid Manure ◽  
Administrative Units ◽  
The Eu

In the European Union (EU), copper concentration in agricultural soil stems from anthropogenic activities and natural sources (soil and geology). This manuscript reports a statistical comparison of copper concentrations at different levels of administrative units, with a focus on agricultural areas. Anthropogenic sources of diffuse copper contamination include fungicidal treatments, liquid manure (mainly from pigs), sewage sludge, atmospheric deposition, mining activities, local industrial contamination and particles from car brakes. Sales of fungicides in the EU are around 158,000 tonnes annually, a large proportion of which are copper based and used extensively in vineyards and orchards. Around 10 million tonnes of sewage sludge is treated annually in the EU, and 40% of this (which has a high copper content) is used as fertilizer in agriculture. In the EU, 150 million pigs consume more than 6.2 million tonnes of copper through additives in their feed, and most of their liquid manure ends up in agricultural soil. These three sources (sales of fungicides, sewage sludge and copper consumption for pigs feed) depend much on local traditional farming practices. Recent research towards replacing copper spraying in vineyards and policy developments on applying sewage and controlling the feed given to pigs are expected to reduce copper accumulation in agricultural soil.

Behavior of Enzyme Activities Exposed to Contamination by Heavy Metals and Dissolved Organic Carbon in Calcareous Agricultural Soils

2017 ◽  
Vol 26 (3) ◽  
pp. 259-276 ◽  
Author(s):  
Aziza Kouchou ◽  
Naoual Rais ◽  
Jeanne-Chantal Thoisy ◽  
Joëlle Duplay ◽  
Malika Ghazi ◽  
...  
Keyword(s):  
Heavy Metals ◽  
Organic Carbon ◽  
Dissolved Organic Carbon ◽  
Enzyme Activities ◽  
Agricultural Soils

scholarly journals Simulating the effects of erosion on organic carbon dynamics in agricultural soils

CATENA ◽  
2022 ◽  
Vol 208 ◽  
pp. 105753
Author(s):  
Honghong Lin ◽  
Xingwu Duan ◽  
Yawen Li ◽  
Lanlan Zhang ◽  
Li Rong ◽  
...  
Keyword(s):  
Organic Carbon ◽  
Agricultural Soils ◽  
Carbon Dynamics

Analysis of potentially toxic metal constraints to apply sewage sludge in Portuguese agricultural soils

2019 ◽  
Vol 26 (25) ◽  
pp. 26000-26014 ◽  
Author(s):  
Luciano A. Gomes ◽  
Nuno Gabriel ◽  
Licínio M. Gando-Ferreira ◽  
José C. Góis ◽  
Margarida J. Quina
Keyword(s):  
Sewage Sludge ◽  
Agricultural Soils ◽  
Toxic Metal
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