2018
DOI: 10.1038/s41598-018-32649-y
|View full text |Cite
|
Sign up to set email alerts
|

Responses of Labile Organic Nitrogen Fractions and Enzyme Activities in eroded Mollisols After 8-year Manure Amendment

Abstract: Soil erosion will cause a degradation in soil nitrogen supplying capacity (SNSC) and manure amendment is an effective way to restored eroded soils. Both labile fractions of soil organic N (SON) and N transformation enzymes are indicators for SNSC, but the effect of manure amendments on labile SON fractions and the relationship between labile SON fractions and enzyme activities remains unclear. In this study, five degrees of erosion were simulated in Mollisols (removal of 0, 5, 10, 20 and 30 cm of topsoil) to a… Show more

Help me understand this report

Search citation statements

Order By: Relevance

Paper Sections

Select...
2
1
1

Citation Types

1
7
0

Year Published

2020
2020
2024
2024

Publication Types

Select...
8
1

Relationship

0
9

Authors

Journals

citations
Cited by 14 publications
(8 citation statements)
references
References 59 publications
1
7
0
Order By: Relevance
“…Our results support the assumption that microbial biomass is linearly correlated with N-acquiring enzyme activities. , Microorganisms are the main producers of soil enzymes, and soil microbial abundance determines the soil enzyme activities . A higher soil microbial biomass can increase GNM and GN. , Therefore, the significant decrease in soil microbial biomass after converting the natural forest to the managed ecosystems can explain the soil microbial N limitation (Table ).…”
Section: Discussionsupporting
confidence: 83%
“…Our results support the assumption that microbial biomass is linearly correlated with N-acquiring enzyme activities. , Microorganisms are the main producers of soil enzymes, and soil microbial abundance determines the soil enzyme activities . A higher soil microbial biomass can increase GNM and GN. , Therefore, the significant decrease in soil microbial biomass after converting the natural forest to the managed ecosystems can explain the soil microbial N limitation (Table ).…”
Section: Discussionsupporting
confidence: 83%
“…Similarly, the quality of organic matter of organic fertilisers played a key role in SOC and SON stocks. SOC and SON were largely influenced by exogenous organic C and N as well as the available forms of N. The application of organic fertilisers with recalcitrant organic compounds, such as cellulose, hemicellulose, lignin, and other resistant substrates, could result in higher time for degradation and transformation of organic matter into the soil, and it leads to increasing the SOC and SON (Campitelli et al 2012;Abdeldaym et al 2018;Chen et al 2018). By contrast, the application of available N, as high rates of slurries and chicken manures, can promote the rapid degradation of organic matter, promoting the reduction in contents of SOC and NOC (Angers et al 2011).…”
Section: Fmentioning
confidence: 99%
“…Soil N transformation is regulated by microorganisms (Chen et al 2018), and microbial sensitivity to seasonal changes can be associated with temperature and N dynamics (Yokobe et al 2018). Labile N fraction pools and net ammonification and nitrification rates in forest soils have been found to undergo substantial temporal variations driven by differences in temperature and precipitation over the year (Kaiser et al 2011), thus the time of year should be considered in studies of soil N dynamics.…”
Section: Introductionmentioning
confidence: 99%