Results 1 to 10 of about 175,167 (285)

From climate-smart agriculture to climate-smart landscapes [PDF]

open access: yesAgriculture & Food Security, 2012
Background For agricultural systems to achieve climate-smart objectives, including improved food security and rural livelihoods as well as climate change adaptation and mitigation, they often need to be take a landscape approach; they must become ...
Scherr Sara J   +2 more
doaj   +3 more sources

Reactive nitrogen fluxes over peatland and forest ecosystems using micrometeorological measurement techniques [PDF]

open access: yesEarth System Science Data, 2022
Interactions of reactive nitrogen (Nr) compounds between the atmosphere and the earth's surface play a key role in atmospheric chemistry and in understanding nutrient cycling of terrestrial ecosystems.
C. Brümmer   +8 more
doaj   +1 more source

Gas chromatography vs. quantum cascade laser-based N2O flux measurements using a novel chamber design [PDF]

open access: yesBiogeosciences, 2017
Recent advances in laser spectrometry offer new opportunities to investigate the soil–atmosphere exchange of nitrous oxide. During two field campaigns conducted at a grassland site and a willow field, we tested the performance of a quantum cascade laser (
C. Brümmer   +11 more
doaj   +1 more source

Reviewing and analyzing shrinkage of peat and other organic soils in relation to selected soil properties

open access: yesVadose Zone Journal, 2023
Peat and other organic soils (e.g., organo‐mineral soils) show distinctive volume changes through desiccation and wetting. Important processes behind volume changes are shrinkage and swelling.
Ronny Seidel   +2 more
doaj   +1 more source

Underestimation of denitrification rates from field application of the 15N gas flux method and its correction by gas diffusion modelling [PDF]

open access: yesBiogeosciences, 2019
Common methods for measuring soil denitrification in situ include monitoring the accumulation of 15N-labelled N2 and N2O evolved from 15N-labelled soil nitrate pool in closed chambers that are placed on the soil surface. Gas diffusion is considered to be
R. Well   +4 more
doaj   +1 more source

Correcting high-frequency losses of reactive nitrogen flux measurements [PDF]

open access: yesAtmospheric Measurement Techniques, 2020
Flux measurements of reactive nitrogen compounds are of increasing importance to assess the impact of unintended emissions on sensitive ecosystems and to evaluate the efficiency of mitigation strategies.
P. Wintjen   +3 more
doaj   +1 more source

Understanding the Impact of Liquid Organic Fertilisation and Associated Application Techniques on N2, N2O and CO2 Fluxes from Agricultural Soils

open access: yesAgriculture, 2022
The prediction of liquid manure effects on N transformations in soils and the associated N2O and N2 fluxes is poor because previous investigations have mostly excluded N2.
Balázs Grosz   +4 more
doaj   +1 more source

The legacy of one hundred years of climate change for organic carbon stocks in global agricultural topsoils

open access: yesScientific Reports, 2023
Soil organic carbon (SOC) of agricultural soils is observed to decline in many parts of the world. Understanding the reasons behind such losses is important for SOC accounting and formulating climate mitigation strategies.
Christopher Poeplau, Rene Dechow
doaj   +1 more source

Effects of fresh and aged chars from pyrolysis and hydrothermal carbonization on nutrient sorption in agricultural soils [PDF]

open access: yesSOIL, 2015
Leaching of nutrients from agricultural soils causes major environmental problems that may be reduced with amendments of chars derived from pyrolysis (pyrochars) or hydrothermal carbonization (hydrochars).
M. Gronwald   +3 more
doaj   +1 more source

Hot regions of labile and stable soil organic carbon in Germany – Spatial variability and driving factors [PDF]

open access: yesSOIL, 2018
Atmospheric carbon dioxide levels can be mitigated by sequestering carbon in the soil. Sequestration can be facilitated by agricultural management, but its influence is not the same on all soil carbon pools, as labile pools with a high turnover may be
C. Vos, A. Jaconi, A. Jacobs, A. Don
doaj   +1 more source

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