Soil CO2 Flux Articles
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Extend the shelf life of produce by up to 5x! 100% natural and 100% scientifically-proven.
Hi there, We would like to connect with produce suppliers and retailers that would benefit from an upward of 1 month of extended produce freshness. Please reply below or contact me at raffaella@agrinolinc.com to further discuss. We want to share with you our new technology that extends the shelf life of fruits and vegetables by up to 5x! By absorbing greenhouse gases that cause bacteria to grow ...
By Agrinol Inc.
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Forest Soil Carbon Flux Measurement and Applications
Measuring forest soil carbon flux gives an insight into the health of forest ecosystems and provides feedback on the effects of global warming. This article outlines how soil CO2 efflux is determined and the applications of soil carbon flux research.The Earth’s carbon cycle maintains a steady balance of carbon in the atmosphere that supports plant and animal life. In recent years, concerns about ...
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Damatta Bio Farmer (Cezar Villela), Brazil - Case Study
EFFECTS OF VARYING COVER CROPS ON SOIL RESPIRATION IN A BRAZILIAN OXISOL A Cover Crop/ Soil Respiration Study in Brazil: Validating gains in soil biology with Solvita CO2 – results after 1 growing season. Brazilian Oxisols are high in clay with low natural fertility. This poses a challenge for growers. To test the potential for soil improvement various grasses and legumes were grown for an ...
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Soil CO2 Methods in the Spotlight
Solvita is a leading commercial test worldwide for soil CO2 respiration (and compost maturity) and is often in comparisons with newer soil respiration methods vying for market share. Such is the case in a recent study by Oklahoma State University which proposed a semi-automatic Gas Chromatography (GC) method for soil respiration. The team, under Jason Warren, Associate Professor and Soil ...
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Organic fertilizer drum granulator production line
Organic fertilizer drum granulator production line Organic fertilizers are rich in nutrients needed for crop growth and can continuously supply crops with them.In addition to mineral nutrients, the decomposition of organic matter in soil produces carbon dioxide, which can be used as the raw material for crop photosynthesis and is conducive to the improvement of crop yield.Providing nutrients is ...
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Impact of Snow on Soil Greenhouse Gases
Spring is finally in the air, and while the thermometers are slowly but steadily rising, we wanted to explore the impacts of the exceptionally snowy winter on the soil greenhouse gas emissions. For this post, we interviewed a researcher, Boris Tupek, who is based in Luke, the Natural Resources Institute Finland. Tupek’s research specializes in greenhouse gases, including measuring and ...
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Activity and ecological implications of maize‐expressed transgenic endo‐1,4‐β‐D‐glucanase in agricultural soils
Plant expression of thermostable endoglucanase (E1) [pdb:1ECE] has been proposed for improved conversion of lignocellulose to ethanol for fuel production. Residues of E1‐expressing maize may effect ecological services (e.g., C mineralization and biogeochemical cycling) on soils where they occur. Therefore, the activity of residual E1 was investigated using soils amended with bacterial and ...
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Divestments oil palm on peat has solid scientific basis
In the Malaysia Chronicle of 17 January 2014, Sarawak Oil Palm Plantation Owners Association (Soppoa) mentions that there is no credible scientific basis for companies to divest from palm oil plantations on peat soils. The article refers to the announcement of Wilmar about a month ago to undertake "no deforestation, no peat, no exploitation" in their palm oil trades. Wetlands International ...
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Re-coupling the carbon and water cycles by Natural Sequence Farming
The techniques of Natural Sequence Farming (NSF) were developed during hands-on management of degraded farmland in the Upper Hunter Valley region of Australia. Early settlement of the continent by people with European cultural assumptions disrupted established interactions of water, soil, and plants resulting in lost fertility. Moreover, agricultural practices such as clearing, burning, ...
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Performance of solid-state sensors for continuous, real-time measurement of soil CO2 concentrations
Recent advances in sensor technology provide a robust capability for continuous measurement of soil gases. The performance of solid-state CO2 sensors (Model GMM220 series, Vaisala, Inc., Helsinki, Finland) was evaluated in laboratory, greenhouse, and irrigated winter wheat (Triticum aestivum L.). In ambient CO2 concentration, the GMM222 sensor averaged 427 ± 8.3 µL L–1. Under variable CO2 ...
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Nitrogen, tillage, and crop rotation effects on carbon dioxide and methane fluxes from irrigated cropping systems
Received for publication December 15, 2008. Long-term effects of tillage intensity, N fertilization, and crop rotation on carbon dioxide (CO2) and methane (CH4) flux from semiarid irrigated soils are poorly understood. We evaluated effects of: (i) tillage intensity [no-till (NT) and conventional moldboard plow tillage (CT)] in a continuous corn rotation; (ii) N fertilization levels [0–246 kg N ...
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Greenhouse gas fluxes in an eastern corn belt soil: Weather, Nitrogen source, and rotation
Relative contributions of diverse, managed ecosystems to greenhouse gases are not completely documented. This study was conducted to estimate soil surface fluxes of carbon dioxide (CO2), methane (CH4), and nitrous oxide (N2O) as affected by management practices and weather. Gas fluxes were measured by vented, static chambers in Drummer and Raub soil series during two growing seasons. Treatments ...
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Tillage effects on soil carbon balance in a semiarid agroecosystem
Tillage systems may affect soil C sequestration, with a potential impact on crop productivity or organic matter mineralization. We evaluated crop yield, C inputs to the soil, and in situ CO2–C fluxes under no-till and conventional tillage (disk tillage) during the 3- to 6-yr period from the installation of an experiment in an Entic Haplustoll of the Semiarid Pampean Region of Argentina to ...
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Can pulse crops play a role in mitigating greenhouse gases from North American agriculture?
The atmospheric buildup of greenhouse gases (GHGs) is a serious environmental issue. Globally, agricultural activities are an important source of anthropogenic GHGs, contributing 20% of the annual atmospheric increase. Management choices largely determine if agricultural soils will be a source, a sink, or will be neutral with respect to GHG net flux. The proportion of agricultural land that is ...
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Soil CO2 efflux in uneven-aged managed forests: temporal patterns following harvest and effects of edaphic heterogeneity
AbstractForest management is expected to influence soil CO2 efflux (FCO2) as a result of changes in microclimatic conditions, soil properties, and root dynamics. We measured FCO2 during the growing seasons of 2003 and 2004 in both gap and non-gap locations within stands ranging from 0 to 10 years after the most recent harvest in a selection-managed northern hardwood forest in central Ontario, ...
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Progressive N limitation of plant response to elevated CO2: a microbiological perspective
Abstract A major uncertainty in predicting long-term ecosystem C balance is whether stimulation of net primary production will be sustained in future atmospheric CO2 scenarios. Immobilization of nutrients (N in particular) in plant biomass and soil organic matter (SOM) provides negative feedbacks to plant growth and may lead to progressive N limitation (PNL) of plant response to CO2 ...
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Soil CO2 Flux Measurements: Comparisons Between the LI-COR LI-6400 and LI-8100
Introduction The basic design features of LI-COR soil CO2 flux chambers were first published by Norman et. al., (1992), and the various factors known to influence the measurement of ground CO2 flux were summarized in LI-COR Application Note #124 and Welles, et. al., (2001). One of these factors is the concentration of CO2 in the chamber head space relative to the ambient atmospheric CO2 ...
By LI-COR
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Soil CO2 Flux Measurements -- Atmospheric CO2 Profile Measurements Using the LI-8100/8150 System
The LI-8100 Automated Soil CO2 Flux System has been designed to help answer the spatial and/or temporal variability questions that arise when performing soil CO2 flux measurements. When using the LI-8150 Multiplexer with the LI-8100 Analyzer Control Unit, atmospheric CO2 profile measurements can be performed in addition to soil CO2 flux measurements, with minimal added cost. This application note ...
By LI-COR
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Soil CO2 Flux Measurements -- Addressing Spatial Variability: Determining the Number of Readings Required
Soils can be highly variable in terms of CO2 flux values. Even at a seemingly uniform site, the soil CO2 flux might range from 2 μmol/m2/s at one location to over 4 mol/m2/s just a few meters away. To obtain reliable site mean flux values, it is important to determine how many readings might be required so that time and resources can be properly allocated before starting an investigation. In ...
By LI-COR
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Soil CO2 Flux Measurements -- Powering the LI-8100/8150 in a Remote Location: Power Requirements and Solar Panel Solution
INTRODUCTION Long-term automated simultaneous measurements at multiple locations within the same study site are often required to adequately characterize high spatial and temporal variability of the soil CO2 fluxes. The multiplexed LI-8100/8150 is a fully automated system dedicated to making such measurements using up to 16 soil chambers. Increase in the global flux network coverage creates a ...
By LI-COR
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