Please use this identifier to cite or link to this item:https://hdl.handle.net/20.500.12259/61910
Type of publication: research article
Type of publication (PDB): Straipsnis Clarivate Analytics Web of Science / Article in Clarivate Analytics Web of Science (S1)
Field of Science: Ekologija ir aplinkotyra / Ecology and environmental sciences (N012);Ekonomika / Economics (S004)
Author(s): Baležentienė, Ligita;Mikša, Ovidijus;Baležentis, Tomas;Štreimikienė, Dalia
Title: Seasonal net carbon exchange in rotation crops in the temperate climate of Central Lithuania
Is part of: Sustainability. Basel : MDPI AG, 2019, Vol. 11, iss. 7
Extent: p. 1-8
Date: 2019
Keywords: CO2 fluxes;Bio-parameters;Environment;Crops
Abstract: Intelligent agricultural solutions require data on the environmental impacts of agriculture. In order for operationalize decision-making for sustainable agriculture, one needs to establish the corresponding datasets and protocols. Increasing anthropogenic CO2 emissions into the atmosphere force the choice of growing crops aimed at mitigating climate change. For this reason, investigations of seasonal carbon exchange were carried out in 2013–2016 at the Training Farm of the Vytautas Magnus University (former Aleksandras Stulginskis University), Lithuania. This paper compares the carbon exchange rate for different crops, viz., maize, ley, winter wheat, spring rapeseed and barley under conventional farming. This study focuses on the carbon exchange rate. We measure the emitted and absorbed CO2 fluxes by applying the closed chamber method. The biomass measurement and leaf area index (LAI) calculations at different plant growth stages are used to evaluate carbon exchange in different agroecosystems. The differences in photosynthetically assimilated CO2 rates were significantly impacted by the leaf area index (p = 0.04) during the plant vegetation period. The significantly (p = 0.02–0.05) strong correlation (r = 0.6– 0.7) exists between soil respiration and LAI. Soil respiration composed only 21% of the agroecosystem carbon exchange. Plant respiration ranged between 0.034 and 3.613 μmol m−2 s−1 during the vegetation period composed of a negligible ratio (mean 16%) of carbon exchange. Generally, respiration emissions were obviously recovered by the gross primary production (GPP) of crops. Therefore, the ecosystems were acting as an atmospheric CO2 sink. Barley accumulated the lowest mean GPP 12.77 μmol m−2 s−1. The highest mean GPP was determined for ley (14.28 μmol m−2 s−1) and maize (15.68 μmol m−2 s−1) due to the biggest LAI and particular bio-characteristics
Internet: https://www.vdu.lt/cris/bitstream/20.500.12259/61910/2/ISSN2071-1050_V_11.N_7.AN_1966.pdf
https://hdl.handle.net/20.500.12259/61910
https://doi.org/10.3390/su11071966
Affiliation(s): Lietuvos agrarinės ekonomikos institutas
Miškų ir ekologijos fakultetas
Vytauto Didžiojo universitetas
Appears in Collections:1. Straipsniai / Articles
Universiteto mokslo publikacijos / University Research Publications

Files in This Item:
marc.xml10.89 kBXMLView/Open

MARC21 XML metadata

Show full item record
Export via OAI-PMH Interface in XML Formats
Export to Other Non-XML Formats


CORE Recommender

WEB OF SCIENCETM
Citations 5

2
checked on Apr 24, 2021

Page view(s)

105
checked on May 1, 2021

Download(s)

17
checked on May 1, 2021

Google ScholarTM

Check

Altmetric


Items in DSpace are protected by copyright, with all rights reserved, unless otherwise indicated.