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Wednesday, August 12, 2020 | History

1 edition of Agroecosystem greenhouse gas balance indicator found in the catalog.

Agroecosystem greenhouse gas balance indicator

W. N. Smith

Agroecosystem greenhouse gas balance indicator

carbon dioxide component

by W. N. Smith

  • 395 Want to read
  • 23 Currently reading

Published by Agriculture and Agri-Food Canada in Ottawa .
Written in English

    Subjects:
  • Gaz à effet de serre,
  • Carbon dioxide,
  • Gaz carbonique

  • Edition Notes

    StatementW.N. Smith ... [et al.].
    SeriesReport -- no. 13
    ContributionsCanada. Agriculture and Agri-Food Canada, Agri-Environmental Indicator Project (Canada)
    The Physical Object
    Pagination26 p. ;
    Number of Pages26
    ID Numbers
    Open LibraryOL25498430M

    Addressing Future Problems of Food and Nutrition Security—A Double Goal. de Haen stated that there is now broad agreement among experts that to achieve the nutrition related Millennium Development Goals (MDGs) and ultimately food and nutrition security for all requires pursuing a double goal: (1) Alleviate hunger and malnutrition on a sustainable basis and (2) Create conditions for meeting. Gross margin was used as indicator for profitability, and Greenhouse Gas emissions (GHGs) as environmental indicator. One hectare was used as functional unit .

      Energy balance closure. The ecosystem energy balance closure (EBC) is an important test to evaluate the reliability of the eddy covariance data, as an unbalance leads to underestimate CO 2 fluxes (Mauder et al., ; Moncrieff, Malhi, & Leuning, ).Cited by: 2. Potential for soil carbon sequestration, but with a full greenhouse gas budget. Currie, L. D. and Lindsay, C. L. (ed.) Nutrient Management in a Rapidly Changing World: Proceedings 22nd Annual Workshop of the Fertilizer and Lime Research Centre Massey University, Palmerston North, February Cited by:

      Concerning the comparison between C sequestration determined via the EC technique (i.e. full C balance) and soil C stock changes, some studies have shown poor agreement (Jones et al., ), but a number of studies have shown comparable estimates, when applied for time frames >10 year and with soil data including at least both top and medium soil depths (i.e. 0–60 cm; e.g. Cited by: 6. Abstract: Food security, climate change mitigation, and land use challenges are interlinked and need to be considered simultaneously. One possible solution is sustainable intensification, which is the practice of increasing food production per area of land whilst also reducing the environmental impacts associated with this. Agroforestry has been stated to be a practice that meets this : Josep Crous-Duran, Anil Graves, Silvestre Garcia-de-Jalon, Joana A. Paulo, Margarida Tome, Joao Hn.


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Agroecosystem greenhouse gas balance indicator by W. N. Smith Download PDF EPUB FB2

Nitrogen balance in agroecosystems varies with soil and climatic conditions, crop species, and management practices [1,2, 11]. This is due to differences in N fertilization rates, crop N removal, NAuthor: Upendra M.

Sainju. In agroecosystems, the soil greenhouse gas (GHG) balance may be altered by land use changes (Robertson et al., ). In general, the shift from cropland to forest or grassland increases the soil organic carbon (SOC) stocks (Guo and Gifford, ; Smith, ).

Dear Colleagues, Agroecosystems are sources and sinks of greenhouse gases (GHGs), such as CO2, CH4 and N2O. The main pathways for GHG emissions are gas exchange between the plant–soil ecosystem and the atmosphere (direct emission), and emissions through tile drainage and surface runoff to water bodies (indirect emission).

Agroecosystem Management Effects on Greenhouse Gas Emissions Across a Coastal Plain Catena Article in Soil Science (4) April with 49 Reads How we measure 'reads'. Agroecosystem Diversity Reconciling Contemporary Agriculture and Environmental Quality the diversity and activities of soil communities, and affected the balance of nutrient mineralization to immobilization by heterotrophs.

Soil organic C is a key indicator of soil quality that is low with contemporary clean-cultivated specialized crop. 2. Methane Oxidation in Wetlands - Microbial controls on methane (CH4) in soils is a key regulator of the atmospheric concentration of this important trace gas.

CH4 is a critical greenhouse gas and wetlands contribute approximately 25% of the global emissions of CH4. Methanotrophic microorganisms offset CH4 emissions by oxidizing CH4.

Lithuania is located in the humid zone, where mean annual precipitation exceeds mean evapotranspiration and soil acidification is an ongoing natural process encouraged by anthropogenic activities. Traditionally, the process may be controlled by different intensity liming.

The chapter summarizes the data on long-term liming and fertilization experiments made in Western Lithuania. Cited by: 2. Soil greenhouse gas emissions in response to corn stover removal and tillage management across the US corn belt. BioEnergy Research. 7(2) DOI: /S Analysis of energy flows and economic dynamics allows the diversity of variables involved in the agroecosystem production to be observed in the same dimension.

In this way, efficiency and performance can be analysed integrally to identify critical points to be improved. The objective of this study was to analyse the energy-economic efficiency within three management strategies (Management I Author: Franklin B.

Martínez, Francisco Guevara, Carlos E. Aguilar, René Pinto, Manuel A. La O, Luis A. Rodr. Greenhouse gas emissions are expressed in relation to their effect on climate changes by an equivalent of CO 2 e (CO 2 e=1x CO 2 +23x CH 4 +x N 2 O).

Within various subphases of agricultural production cycle, the emission load of conventional and organic farming by: 2.

Greenhouse gas emission from Paddy Fields in South Kalimantan (Hadi et al. ) Here, greenhouse gas emissions from two different water irrigation regimes with different rice variety were compared.

Successful greenhouse gas (GHG) mitigation and adaptation programs require both reliable inventories of current emissions and the ability to forecast management-induced changes on these emissions. For example, nitrous oxide (N2O) emissions constitute a key sustainability indicator, and N2O is an important component of the overall carbon footprint.

Greenhouse gases prevent infrared radiaiton from escaping into space and those gases maintain the earth's warm temperature. The increasing levels of greenhouse gases resulting from industry and buring of fossil fuels is likely to result in rising global temperatures.

This rise in temperature is causing each year to have higher temperatres. Indirect radiative forcing occurs when chemical transformations of the original gas produce other greenhouse gases, when a gas influences the atmospheric lifetimes of other gases, and/ or when a gas affects atmospheric processes that, alter the radiative balance of the earth (e.g., affect cloud formation or albedo) The concept of a Global.

Life-cycle assessment or life cycle assessment (LCA, also known as life-cycle analysis) is a methodology for assessing environmental impacts associated with all the stages of the life-cycle of a commercial product, process, or instance, in the case of a manufactured product, environmental impacts are assessed from raw material extraction and processing (cradle), through the product.

This project aims to provide state-of-the-art science and technology to help reduce greenhouse gas (GHG) emissions from the agriculture sector, improve sustainability and resource use efficiency of agricultural production systems and increase opportunity for agricultural producers to participate in GHG offset markets and provide sustainable feedstock supplies for bioenergy development.

Badawy B, Polavarapu S, Jones DBA, Deng F, Neish M, Melton JR, Nassar R and Arora VK (), "Coupling the Canadian Terrestrial Ecosystem Model (CTEM v. ) to Environment and Climate Change Canada's greenhouse gas forecast model (vglb)", GEOSCIENTIFIC MODEL DEVELOPMENT., Vol.

11(2), pp. Soil greenhouse gas emissions from three decades long-term experimental field of corn-soybean rotation and tillage treatments - Seo, J., Vyn, T.J., Gal, A., Smith, D.R.

Soil greenhouse gas emissions from three decades long-term experimental field of corn-soybean rotation and tillage treatments. Program for Greenhouse Gas Mitigation through Natural Resource Management The mission of this program is to facilitate the adoption of improved land management practices to mitigate greenhouse gas emissions in an economically and environmentally sustainable fashion.

Program for Global Environmental Sustainability. tableof contents. abstract. list of figures. list of abbreviations. introduction agriculture and climate change agroecology as a management approach enhancing agroecosystem resilience with agroecological management study area structure of thesis.

ticalframework systems thinking and agriculture adaptive cycle resilience adaptive capacity. @article{osti_, title = {Review: Balancing Limiting Factors and Economic Drivers to Achieve Sustainable Midwestern US Agricultural Residue Feedstock Supplies}, author = {Wilhelm, Wally W and Hess, J Richard and Karlen, Douglas L and Muth, David J and Johnson, Jane M.

F. and Baker, John M and Gollany, Hero T and Novak, Jeff M and Stott, Diane E and Varvel, Gary E}, abstractNote.Greenhouse gas (GHG-CO 2, N 2 O and CH 4) emissions rates will be measured following sampling protocol of GRACEnet Chamber-based Trace Gas Flux Measurement (Parkin and Venterea, ).

Two PVC rings (30 cm diameter and 10 cm tall) will be installed in each plot to a depth of approximately 6 cm.The potential for land sparing to offset greenhouse gas emissions from agriculture.

Nature Climate Change. 6, pp. Global nitrogen budgets in cereals: a year assessment for maize, rice and wheat production systemsCited by: 3.