Long-term effects of sewage sludge applications on soil properties, cadmium availability and distribution in arable soil

Bergkvist, Petra; Jarvis, Nicholas; Berggren, Dan; Carlgren, Käll

doi:10.1016/s0167-8809(03)00121-x

Cited by 85 publications

(60 citation statements)

References 28 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…in the game enclosure area, a significant (P < 0.05) increase in soil ph (6.1 ± 0.2  6.7 ± 0.3) was found as a result of intensive liming of the inundation area. there was only a small non-significant increase in ph at the remaining part of the area monitored (6.4 ± 0.3), with no significant differences in soil concentrations of the tested substances in individual time periods, which is in good agreement with literary data (Bergkvist et al 2003;makela-kurtto and sippola 2002;Wang et al 1997). Feedstuffs cadmium is an element with a high bioaccumulation index in the 1-10 range (Pais and Jones 1997).…”

Section: Tissuessupporting

confidence: 87%

Entry of Heavy Metals into Food Chains: a 20-year Comparison Study in Northern Moravia (Czech Republic)

2008

View full text Add to dashboard Cite

show abstract

Section: Tissuessupporting

confidence: 87%

Entry of Heavy Metals into Food Chains: a 20-year Comparison Study in Northern Moravia (Czech Republic)

2008

View full text Add to dashboard Cite

show abstract

“…When comparing the two organically fertilized soils, the number of nitrate reducers (narG) and denitrifiers (nirS, nosZ) were significantly lower in the plots treated with sewage sludge than in the ones with manure. The lower pH of 4.7 in the sludge plots compared with that of 6.0 in the manuretreated plot, in combination with the higher heavy metal content measured in the sludge plots (Bergkvist et al, 2003) could counteract the positive effects expected by high organic inputs. Overall, the size of these functional guilds was one to two orders of magnitude lower in the ammonium sulfate treatment compared with the other treatments.…”

Section: Resultsmentioning

confidence: 92%

Relationship between N-cycling communities and ecosystem functioning in a 50-year-old fertilization experiment

et al. 2009

View full text Add to dashboard Cite

The relative importance of size and composition of microbial communities in ecosystem functioning is poorly understood. Here, we investigated how community composition and size of selected functional guilds in the nitrogen cycle correlated with agroecosystem functioning, which was defined as microbial process rates, total crop yield and nitrogen content in the crop. Soil was sampled from a 50-year fertilizer trial and the treatments comprised unfertilized bare fallow, unfertilized with crop, and plots with crop fertilized with calcium nitrate, ammonium sulfate, solid cattle manure or sewage sludge. The size of the functional guilds and the total bacterial community were greatly affected by the fertilization regimes, especially by the sewage sludge and ammonium sulfate treatments. The community size results were combined with previously published data on the composition of the corresponding communities, potential ammonia oxidation, denitrification, basal and substrate-induced respiration rates, in addition to crop yield for an integrated analysis. It was found that differences in size, rather than composition, correlated with differences in process rates for the denitrifier and ammonia-oxidizing archaeal and total bacterial communities, whereas neither differences in size nor composition was correlated with differences in process rates for the ammonia-oxidizing bacterial community. In contrast, the composition of nitrate-reducing, denitrifying and total bacterial communities co-varied with primary production and both were strongly linked to soil properties.

show abstract

“…Subsoil data are few due to sampling restrictions given by the small plots. Estimates are only available for 1956 (ρ=1.49 g cm -3 at 20-30 cm depth; Eriksson, 1980) and for 1997 (Bergkvist et al, 2003) in treatment C (ρ=1.41 g cm -3 at 20-25 cm depth) and in treatment O (ρ=1.30 g cm -3 at 20-25 cm and ρ=1.49 g cm -3 at 25-30 cm depth). We used the bulk density measurement for treatment O in all cases where z eq >20 cm.…”

Section: Determination Of Mineral Mass Balance and Equivalent Topsoilmentioning

confidence: 99%

Roots contribute more to refractory soil organic matter than above-ground crop residues, as revealed by a long-term field experiment

Kätterer

Bolinder

Andrén

et al. 2011

Agriculture, Ecosystems & Environment

448

325

View full text Add to dashboard Cite

(2011) Roots contribute more to refractory soil organic matter than aboveground crop residues, as revealed by a long-term field experiment.Agriculture Corresponding author: Thomas.Katterer@slu.se AbstractWe revisited the well documented and ongoing long-term 'Ultuna continuous soil organic matter field experiment' which started in 1956 at the Swedish University of Agricultural Sciences. The objective of the experiment is to quantify effects of six organic amendments and mineral N fertilizers on the crop and soil. We used the 'equivalent soil mass' concept for estimating changes in the topsoil C stocks in all 15 treatments. C inputs from amendments were measured and those from crops were calculated using allometric functions and crop yields. Clustering C inputs into seven categories by quality allowed us to calculate a 'humification' coefficient for each category. Here, these coefficients simply were based on the fraction of total C input that still remains in the topsoil after about 50 years. As indicated by previous studies, this coefficient was highest for peat, followed by sewage sludge, manure, sawdust and aboveground crop residues. The most interesting result from the current investigation is that the optimized coefficient for rootderived C was about 2.3 times higher than that for aboveground plant residues. The calculated results were found to be robust in a sensitivity analysis. Our findings strongly support the hypothesis that root-derived C contributes more to relatively stable soil C pools than the same amount of aboveground crop residue-derived C.

show abstract

Long-term effects of sewage sludge applications on soil properties, cadmium availability and distribution in arable soil

Cited by 85 publications

References 28 publications

Entry of Heavy Metals into Food Chains: a 20-year Comparison Study in Northern Moravia (Czech Republic)

Entry of Heavy Metals into Food Chains: a 20-year Comparison Study in Northern Moravia (Czech Republic)

Relationship between N-cycling communities and ecosystem functioning in a 50-year-old fertilization experiment

Roots contribute more to refractory soil organic matter than above-ground crop residues, as revealed by a long-term field experiment

Contact Info

Product

Resources

About