Soil C and N dynamics and maize (Zea may L.) yield as affected by cropping systems and residue management in North-western Pakistan

In sustainable agriculture crop residues management should consider the interactions between soil and residue properties, which can affect the decomposition and global greenhouse gases (GHGs) emission. Through a laboratory experiment, we investigated the effect of the management (incorporation and surface placement) of wheat and faba bean residues on their decomposition and CO2, CH4 and N2O emissions from two soils, a Chromic Vertisol and an Eutric Cambisol. In the Vertisol, wheat residues increased the CO2 emission more than faba bean when left on the surface whereas no differences among residues were observed when incorporated. In the Cambisol, faba bean emitted more than wheat when left in the surface and less when incorporated. Total CH4 emissions were higher in faba bean in Cambisol for both management and only when applied in the surface in Vertisol. Total N2O emission in the Vertisol was higher when faba bean was incorporated, and wheat was left on the surface. In the Cambisol, wheat addition increased total N2O emissions by 20% compared to faba bean, with no differences between managements. Our study confirmed that contrasting properties among tested soils resulted in significant interactions with residues own degradability and their placement affecting residue decomposition, soil C and N dynamics, and GHGs emission.

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Trade-offs between the short- and long-term effects of residue quality on soil C and N dynamics

Plant and Soil ◽

10.1007/s11104-010-0360-z ◽

2010 ◽

Vol 338 (1-2) ◽

pp. 159-169 ◽

Cited By ~ 36

Author(s):

Roberta Gentile ◽

Bernard Vanlauwe ◽

Pauline Chivenge ◽

Johan Six

Keyword(s):

Residue Quality ◽

Long Term Effects ◽

N Dynamics ◽

Soil C ◽

Trade Offs ◽

Short And Long Term ◽

Soil C And N ◽

C And N ◽

C And N Dynamics

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Effect of elevated tropospheric ozone on soil carbon and nitrogen: A meta-analysis

Environmental Research Letters ◽

10.1088/1748-9326/ac49b9 ◽

2022 ◽

Author(s):

Enzhu Hu ◽

Zhimin Ren ◽

Xiaoke Wang ◽

Hongxing Zhang ◽

Weiwei Zhang

Keyword(s):

Tropospheric Ozone ◽

Terrestrial Ecosystem ◽

Soil N ◽

N Dynamics ◽

Organic C ◽

Soil C ◽

Soil C And N ◽

C And N ◽

The Impact ◽

C And N Dynamics

Abstract Elevated tropospheric ozone concentration ([O3]) may substantially influence the belowground processes of the terrestrial ecosystem. Nevertheless, a comprehensive and quantitative understanding of the responses of soil C and N dynamics to elevated [O3] remains elusive. In this study, the results of 41 peer-reviewed studies were synthesized using meta-analytic techniques, to quantify the impact of O3 on ten variables associated with soil C and N, i.e., total C (TC, including soil organic C), total N (TN), dissolved organic C (DOC), ammonia N (NH4 +), nitrate N (NO3 -), microbial biomass C (MBC) and N (MBN), rates of nitrification (NTF) and denitrification (DNF), as well as C/N ratio. The results depicted that all these variables showed significant changes (P < 0.05) with [O3] increased by 27.6 ± 18.7 nL/L (mean ± SD), including decreases in TC, DOC, TN, NH4 +, MBC, MBN and NTF, and increases in C/N, NO3 - and DNF. The effect sizes of TN, NTF, and DNF were significantly correlated with O3 fumigation level and experimental duration (P < 0.05). Soil pH and climate were essential in analyses of O3 impacts on soil C and N. However, the responses of most variables to elevated [O3] were generally independent of O3 fumigation method, terrestrial ecosystem type, and additional [CO2] exposure. The altered soil C and N dynamics under elevated [O3] may reduce its C sink capacity, and change soil N availability thus impact plant growth and enhance soil N losses.

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Urban Grassland Management Implications for Soil C and N Dynamics: A Microbial Perspective

Frontiers in Ecology and Evolution ◽

10.3389/fevo.2019.00315 ◽

2019 ◽

Vol 7 ◽

Cited By ~ 6

Author(s):

Grant L. Thompson ◽

Jenny Kao-Kniffin

Keyword(s):

Grassland Management ◽

N Dynamics ◽

Management Implications ◽

Soil C ◽

Soil C And N ◽

C And N ◽

C And N Dynamics

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Soil C and N dynamics induced by leaf-litter decomposition of shrubs and perennial grasses of the Patagonian Monte

Soil Biology and Biochemistry ◽

10.1016/j.soilbio.2006.03.006 ◽

2006 ◽

Vol 38 (8) ◽

pp. 2401-2410 ◽

Cited By ~ 34

Author(s):

Dariana N. Vargas ◽

Mónica B. Bertiller ◽

Jorge O. Ares ◽

Analía L. Carrera ◽

Claudia L. Sain

Keyword(s):

Leaf Litter ◽

Litter Decomposition ◽

Perennial Grasses ◽

Leaf Litter Decomposition ◽

N Dynamics ◽

Soil C ◽

Soil C And N ◽

C And N ◽

C And N Dynamics

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Soil C and N dynamics and their non-additive responses to litter mixture under different moisture conditions from an alpine steppe soil, Northern Tibet

Soil Biology and Biochemistry ◽

10.1016/j.soilbio.2018.07.016 ◽

2018 ◽

Vol 125 ◽

pp. 231-238 ◽

Cited By ~ 5

Author(s):

Youchao Chen ◽

Shuqin Ma ◽

Jing Liu ◽

Genwei Cheng ◽

Xuyang Lu

Keyword(s):

N Dynamics ◽

Soil C ◽

Northern Tibet ◽

Alpine Steppe ◽

Litter Mixture ◽

Soil C And N ◽

C And N ◽

Moisture Conditions ◽

C And N Dynamics

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Short term effects of bioenergy by-products on soil C and N dynamics, nutrient availability and biochemical properties

Agriculture Ecosystems & Environment ◽

10.1016/j.agee.2011.06.015 ◽

2012 ◽

Vol 160 ◽

pp. 3-14 ◽

Cited By ~ 92

Author(s):

A. Galvez ◽

T. Sinicco ◽

M.L. Cayuela ◽

M.D. Mingorance ◽

F. Fornasier ◽

...

Keyword(s):

Nutrient Availability ◽

Biochemical Properties ◽

Short Term ◽

N Dynamics ◽

Soil C ◽

Soil C And N ◽

C And N ◽

By Products ◽

C And N Dynamics ◽

Short Term Effects

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The effects of gaps and liming on forest floor decomposition and soil C and N dynamics in a Fagus sylvatica forest

Canadian Journal of Forest Research ◽

10.1139/x03-218 ◽

2004 ◽

Vol 34 (3) ◽

pp. 509-518 ◽

Cited By ~ 36

Author(s):

J Bauhus ◽

T Vor ◽

N Bartsch ◽

A Cowling

Keyword(s):

Fagus Sylvatica ◽

Forest Floor ◽

Mineral Soil ◽

N Dynamics ◽

Soil C ◽

Soil C And N ◽

C And N ◽

C And N Pools ◽

Gap Creation ◽

C And N Dynamics

Despite the importance of gaps in the dynamics and management of many forest types, very little is known about the medium- to long-term soil C and N dynamics associated with this disturbance. This study was designed to test the hypothesis that gap creation and lime application, a routine measure in many European forests to ameliorate soil acidity, lead to accelerated litter decomposition and thus a reduction in the forest floor and soil C and N pools. Four gaps were created in 1989 in a mature European beech (Fagus sylvatica L.) forest on acid soil with a moder humus, and lime (3 t dolomite·ha1) was applied to two of these and surrounding areas. Litter and fine-root decomposition was measured in 19921993 and 19961998 using litterbags. Forest floor (L, F, and H layers) and mineral soil (040 cm) C and N pools were determined in 1989 and 1997. Eight years following silvicultural treatments, there was no change in C and N over the entire forest soil profile including forest floor. Reductions in the F and H layers in limed gaps were compensated for by increases in soil C and N in the surface (010 cm) mineral soil. Decomposition of F litter was significantly accelerated in limed gaps, leading to the development of a mullmoder, whereas gap creation alone had no effect on mass loss of F material in litterbags. Gap size disturbances in this acid beech forest appear to have minimal influences on soil C and N stocks. However, when combined with liming, changes in the humus form and vertical distribution of soil C and N may occur.

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