Greenhouse gas emissions and crop yield in no-tillage systems: A meta-analysis
•No-till could reduce GHGs emissions and increase crop yields in dry climates.•No-till substantially decreased the global warming potential (GWP) of acid soils.•No-till enhanced barley yield by approximately 49%.•No-till reduced GWP in rice fields by suppressing CO2 (22%) and CH4 (22%) emissions. No...
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description | •No-till could reduce GHGs emissions and increase crop yields in dry climates.•No-till substantially decreased the global warming potential (GWP) of acid soils.•No-till enhanced barley yield by approximately 49%.•No-till reduced GWP in rice fields by suppressing CO2 (22%) and CH4 (22%) emissions.
No-tillage (NT) has been touted as one of several climate-smart agriculture (CSA) management practices that improve food security and enhance agroecosystem resilience to climate change. However, the sustainable effectiveness of NT greatly depends on trade-offs between NT-induced changes in crop yield and greenhouse gas (GHG, i.e. CH4, CO2, and N2O) emissions. Such trade-offs are regulated by climate fluctuations and heterogeneous soil conditions and have not been well addressed. Supporting CSA management decisions requires advancing our understanding of how NT affects crop yield and GHG emissions in different agroecological regions. In this study, a meta-analysis was conducted using 740 paired measurements from 90 peer-reviewed articles to assess the effects of NT on crop yield, GHG emissions, and the global warming potential (GWP) of major cereal cropping systems. Compared to conventional tillage (CT), NT reduced in GHG emissions and increased crop yield in dry, but not humid, climates, and reduced in the GWP at sites with acidic soils. Across different cropping systems, NT enhanced barley yield by 49%, particularly in dry climates, and it decreased the GWP of rice fields through a 22% reduction in both CO2 and CH4 emissions. Our synthesis suggests that NT is an effective CSA management practice because of its potential for climate change mitigation and crop yield improvement. However, the net effect of NT (relative to CT) was influenced by several environmental and agronomic factors (climatic conditions, tillage duration, soil texture, pH, crop species). Therefore, agroecological setting must be taken into consideration when conducting a comparative evaluation of different tillage practices. |
doi_str_mv | 10.1016/j.agee.2018.09.002 |
format | Article |
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No-tillage (NT) has been touted as one of several climate-smart agriculture (CSA) management practices that improve food security and enhance agroecosystem resilience to climate change. However, the sustainable effectiveness of NT greatly depends on trade-offs between NT-induced changes in crop yield and greenhouse gas (GHG, i.e. CH4, CO2, and N2O) emissions. Such trade-offs are regulated by climate fluctuations and heterogeneous soil conditions and have not been well addressed. Supporting CSA management decisions requires advancing our understanding of how NT affects crop yield and GHG emissions in different agroecological regions. In this study, a meta-analysis was conducted using 740 paired measurements from 90 peer-reviewed articles to assess the effects of NT on crop yield, GHG emissions, and the global warming potential (GWP) of major cereal cropping systems. Compared to conventional tillage (CT), NT reduced in GHG emissions and increased crop yield in dry, but not humid, climates, and reduced in the GWP at sites with acidic soils. Across different cropping systems, NT enhanced barley yield by 49%, particularly in dry climates, and it decreased the GWP of rice fields through a 22% reduction in both CO2 and CH4 emissions. Our synthesis suggests that NT is an effective CSA management practice because of its potential for climate change mitigation and crop yield improvement. However, the net effect of NT (relative to CT) was influenced by several environmental and agronomic factors (climatic conditions, tillage duration, soil texture, pH, crop species). Therefore, agroecological setting must be taken into consideration when conducting a comparative evaluation of different tillage practices.</description><identifier>ISSN: 0167-8809</identifier><identifier>EISSN: 1873-2305</identifier><identifier>DOI: 10.1016/j.agee.2018.09.002</identifier><language>eng</language><publisher>Amsterdam: Elsevier B.V</publisher><subject>acid soils ; Acidic soils ; Agricultural ecosystems ; Agricultural practices ; Agricultural production ; agroecological zones ; agroecosystems ; Agronomy ; Barley ; Carbon dioxide ; Cereal crops ; Climate ; Climate change ; Climate change mitigation ; Climate effects ; Climate-smart agriculture ; Climatic conditions ; climatic factors ; conventional tillage ; Crop yield ; Cropping systems ; Crops ; Digital agriculture ; Emissions ; ENVIRONMENTAL SCIENCES ; Food security ; Global warming ; global warming potential ; grain yield ; Greenhouse effect ; Greenhouse gas emissions ; Greenhouse gases ; Humid climates ; Management ; Meta-analysis ; Methane ; methane production ; Nitrous oxide ; No-tillage ; paddies ; Rice fields ; Soil conditions ; Soil properties ; soil quality ; Soil texture ; Texture ; Tillage ; Tradeoffs</subject><ispartof>Agriculture, ecosystems & environment, 2018-12, Vol.268 (C), p.144-153</ispartof><rights>2018 Elsevier B.V.</rights><rights>Copyright Elsevier BV Dec 1, 2018</rights><lds50>peer_reviewed</lds50><oa>free_for_read</oa><woscitedreferencessubscribed>false</woscitedreferencessubscribed><citedby>FETCH-LOGICAL-c432t-f4521ceeee8efe89343ca6df0958b08eaaac92b21d23d2d6510696cbb0764be63</citedby><cites>FETCH-LOGICAL-c432t-f4521ceeee8efe89343ca6df0958b08eaaac92b21d23d2d6510696cbb0764be63</cites><orcidid>0000-0001-8854-6005 ; 0000-0002-5284-2897 ; 000000022686745X ; 0000000252842897 ; 0000000188546005</orcidid></display><links><openurl>$$Topenurl_article</openurl><openurlfulltext>$$Topenurlfull_article</openurlfulltext><thumbnail>$$Tsyndetics_thumb_exl</thumbnail><linktohtml>$$Uhttps://www.sciencedirect.com/science/article/pii/S016788091830375X$$EHTML$$P50$$Gelsevier$$H</linktohtml><link.rule.ids>230,314,776,780,881,3537,27901,27902,65306</link.rule.ids><backlink>$$Uhttps://www.osti.gov/servlets/purl/1607275$$D View this record in Osti.gov$$Hfree_for_read</backlink></links><search><creatorcontrib>Huang, Yawen</creatorcontrib><creatorcontrib>Ren, Wei</creatorcontrib><creatorcontrib>Wang, Lixin</creatorcontrib><creatorcontrib>Hui, Dafeng</creatorcontrib><creatorcontrib>Grove, John H.</creatorcontrib><creatorcontrib>Yang, Xiaojuan</creatorcontrib><creatorcontrib>Tao, Bo</creatorcontrib><creatorcontrib>Goff, Ben</creatorcontrib><creatorcontrib>Oak Ridge National Lab. (ORNL), Oak Ridge, TN (United States)</creatorcontrib><title>Greenhouse gas emissions and crop yield in no-tillage systems: A meta-analysis</title><title>Agriculture, ecosystems & environment</title><description>•No-till could reduce GHGs emissions and increase crop yields in dry climates.•No-till substantially decreased the global warming potential (GWP) of acid soils.•No-till enhanced barley yield by approximately 49%.•No-till reduced GWP in rice fields by suppressing CO2 (22%) and CH4 (22%) emissions.
No-tillage (NT) has been touted as one of several climate-smart agriculture (CSA) management practices that improve food security and enhance agroecosystem resilience to climate change. However, the sustainable effectiveness of NT greatly depends on trade-offs between NT-induced changes in crop yield and greenhouse gas (GHG, i.e. CH4, CO2, and N2O) emissions. Such trade-offs are regulated by climate fluctuations and heterogeneous soil conditions and have not been well addressed. Supporting CSA management decisions requires advancing our understanding of how NT affects crop yield and GHG emissions in different agroecological regions. In this study, a meta-analysis was conducted using 740 paired measurements from 90 peer-reviewed articles to assess the effects of NT on crop yield, GHG emissions, and the global warming potential (GWP) of major cereal cropping systems. Compared to conventional tillage (CT), NT reduced in GHG emissions and increased crop yield in dry, but not humid, climates, and reduced in the GWP at sites with acidic soils. Across different cropping systems, NT enhanced barley yield by 49%, particularly in dry climates, and it decreased the GWP of rice fields through a 22% reduction in both CO2 and CH4 emissions. Our synthesis suggests that NT is an effective CSA management practice because of its potential for climate change mitigation and crop yield improvement. However, the net effect of NT (relative to CT) was influenced by several environmental and agronomic factors (climatic conditions, tillage duration, soil texture, pH, crop species). Therefore, agroecological setting must be taken into consideration when conducting a comparative evaluation of different tillage practices.</description><subject>acid soils</subject><subject>Acidic soils</subject><subject>Agricultural ecosystems</subject><subject>Agricultural practices</subject><subject>Agricultural production</subject><subject>agroecological zones</subject><subject>agroecosystems</subject><subject>Agronomy</subject><subject>Barley</subject><subject>Carbon dioxide</subject><subject>Cereal crops</subject><subject>Climate</subject><subject>Climate change</subject><subject>Climate change mitigation</subject><subject>Climate effects</subject><subject>Climate-smart agriculture</subject><subject>Climatic conditions</subject><subject>climatic factors</subject><subject>conventional tillage</subject><subject>Crop yield</subject><subject>Cropping systems</subject><subject>Crops</subject><subject>Digital agriculture</subject><subject>Emissions</subject><subject>ENVIRONMENTAL SCIENCES</subject><subject>Food security</subject><subject>Global warming</subject><subject>global warming potential</subject><subject>grain yield</subject><subject>Greenhouse effect</subject><subject>Greenhouse gas emissions</subject><subject>Greenhouse gases</subject><subject>Humid climates</subject><subject>Management</subject><subject>Meta-analysis</subject><subject>Methane</subject><subject>methane production</subject><subject>Nitrous oxide</subject><subject>No-tillage</subject><subject>paddies</subject><subject>Rice fields</subject><subject>Soil conditions</subject><subject>Soil properties</subject><subject>soil quality</subject><subject>Soil texture</subject><subject>Texture</subject><subject>Tillage</subject><subject>Tradeoffs</subject><issn>0167-8809</issn><issn>1873-2305</issn><fulltext>true</fulltext><rsrctype>article</rsrctype><creationdate>2018</creationdate><recordtype>article</recordtype><recordid>eNp9kT-P1DAQxS0EEsvCF6CyoKFJGNsbx0Y0p9PdgXTimqO2HGdy51XWXjxZpP32OFoqCqaZ5jd_3nuMvRfQChD68771T4itBGFasC2AfME2wvSqkQq6l2xTob4xBuxr9oZoD7WkMhv2464gpud8IuRPnjgeIlHMibhPIw8lH_k54jzymHjKzRLnuV7idKYFD_SFX_EDLr7xyc9nivSWvZr8TPjub9-yn7c3j9ffmvuHu-_XV_dN2Cm5NNOukyJgLYMTGqt2Kng9TmA7M4BB732wcpBilGqUo-4EaKvDMECvdwNqtWUfLnszLdFRiAuG55BTwrA4oaGXfVehTxfoWPKvE9LiqriAVUHCKthJYWzXSd2v-z7-g-7zqVRRK6U6sKK3slLyQlVfiApO7ljiwZezE-DWHNzerTm4NQcH1q0mb9nXyxBWP35HLOu7mAKOsazfjjn-b_wPHs-QAQ</recordid><startdate>20181201</startdate><enddate>20181201</enddate><creator>Huang, Yawen</creator><creator>Ren, Wei</creator><creator>Wang, Lixin</creator><creator>Hui, Dafeng</creator><creator>Grove, John H.</creator><creator>Yang, Xiaojuan</creator><creator>Tao, Bo</creator><creator>Goff, Ben</creator><general>Elsevier B.V</general><general>Elsevier BV</general><general>Elsevier</general><scope>AAYXX</scope><scope>CITATION</scope><scope>7QO</scope><scope>7SN</scope><scope>7SS</scope><scope>7ST</scope><scope>7T7</scope><scope>8FD</scope><scope>C1K</scope><scope>FR3</scope><scope>P64</scope><scope>SOI</scope><scope>7S9</scope><scope>L.6</scope><scope>OIOZB</scope><scope>OTOTI</scope><orcidid>https://orcid.org/0000-0001-8854-6005</orcidid><orcidid>https://orcid.org/0000-0002-5284-2897</orcidid><orcidid>https://orcid.org/000000022686745X</orcidid><orcidid>https://orcid.org/0000000252842897</orcidid><orcidid>https://orcid.org/0000000188546005</orcidid></search><sort><creationdate>20181201</creationdate><title>Greenhouse gas emissions and crop yield in no-tillage systems: A meta-analysis</title><author>Huang, Yawen ; Ren, Wei ; Wang, Lixin ; Hui, Dafeng ; Grove, John H. ; Yang, Xiaojuan ; Tao, Bo ; Goff, Ben</author></sort><facets><frbrtype>5</frbrtype><frbrgroupid>cdi_FETCH-LOGICAL-c432t-f4521ceeee8efe89343ca6df0958b08eaaac92b21d23d2d6510696cbb0764be63</frbrgroupid><rsrctype>articles</rsrctype><prefilter>articles</prefilter><language>eng</language><creationdate>2018</creationdate><topic>acid soils</topic><topic>Acidic soils</topic><topic>Agricultural ecosystems</topic><topic>Agricultural practices</topic><topic>Agricultural production</topic><topic>agroecological zones</topic><topic>agroecosystems</topic><topic>Agronomy</topic><topic>Barley</topic><topic>Carbon dioxide</topic><topic>Cereal crops</topic><topic>Climate</topic><topic>Climate change</topic><topic>Climate change mitigation</topic><topic>Climate effects</topic><topic>Climate-smart agriculture</topic><topic>Climatic conditions</topic><topic>climatic factors</topic><topic>conventional tillage</topic><topic>Crop yield</topic><topic>Cropping systems</topic><topic>Crops</topic><topic>Digital agriculture</topic><topic>Emissions</topic><topic>ENVIRONMENTAL SCIENCES</topic><topic>Food security</topic><topic>Global warming</topic><topic>global warming potential</topic><topic>grain yield</topic><topic>Greenhouse effect</topic><topic>Greenhouse gas emissions</topic><topic>Greenhouse gases</topic><topic>Humid climates</topic><topic>Management</topic><topic>Meta-analysis</topic><topic>Methane</topic><topic>methane production</topic><topic>Nitrous oxide</topic><topic>No-tillage</topic><topic>paddies</topic><topic>Rice fields</topic><topic>Soil conditions</topic><topic>Soil properties</topic><topic>soil quality</topic><topic>Soil texture</topic><topic>Texture</topic><topic>Tillage</topic><topic>Tradeoffs</topic><toplevel>peer_reviewed</toplevel><toplevel>online_resources</toplevel><creatorcontrib>Huang, Yawen</creatorcontrib><creatorcontrib>Ren, Wei</creatorcontrib><creatorcontrib>Wang, Lixin</creatorcontrib><creatorcontrib>Hui, Dafeng</creatorcontrib><creatorcontrib>Grove, John H.</creatorcontrib><creatorcontrib>Yang, Xiaojuan</creatorcontrib><creatorcontrib>Tao, Bo</creatorcontrib><creatorcontrib>Goff, Ben</creatorcontrib><creatorcontrib>Oak Ridge National Lab. 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(ORNL), Oak Ridge, TN (United States)</aucorp><format>journal</format><genre>article</genre><ristype>JOUR</ristype><atitle>Greenhouse gas emissions and crop yield in no-tillage systems: A meta-analysis</atitle><jtitle>Agriculture, ecosystems & environment</jtitle><date>2018-12-01</date><risdate>2018</risdate><volume>268</volume><issue>C</issue><spage>144</spage><epage>153</epage><pages>144-153</pages><issn>0167-8809</issn><eissn>1873-2305</eissn><abstract>•No-till could reduce GHGs emissions and increase crop yields in dry climates.•No-till substantially decreased the global warming potential (GWP) of acid soils.•No-till enhanced barley yield by approximately 49%.•No-till reduced GWP in rice fields by suppressing CO2 (22%) and CH4 (22%) emissions.
No-tillage (NT) has been touted as one of several climate-smart agriculture (CSA) management practices that improve food security and enhance agroecosystem resilience to climate change. However, the sustainable effectiveness of NT greatly depends on trade-offs between NT-induced changes in crop yield and greenhouse gas (GHG, i.e. CH4, CO2, and N2O) emissions. Such trade-offs are regulated by climate fluctuations and heterogeneous soil conditions and have not been well addressed. Supporting CSA management decisions requires advancing our understanding of how NT affects crop yield and GHG emissions in different agroecological regions. In this study, a meta-analysis was conducted using 740 paired measurements from 90 peer-reviewed articles to assess the effects of NT on crop yield, GHG emissions, and the global warming potential (GWP) of major cereal cropping systems. Compared to conventional tillage (CT), NT reduced in GHG emissions and increased crop yield in dry, but not humid, climates, and reduced in the GWP at sites with acidic soils. Across different cropping systems, NT enhanced barley yield by 49%, particularly in dry climates, and it decreased the GWP of rice fields through a 22% reduction in both CO2 and CH4 emissions. Our synthesis suggests that NT is an effective CSA management practice because of its potential for climate change mitigation and crop yield improvement. However, the net effect of NT (relative to CT) was influenced by several environmental and agronomic factors (climatic conditions, tillage duration, soil texture, pH, crop species). Therefore, agroecological setting must be taken into consideration when conducting a comparative evaluation of different tillage practices.</abstract><cop>Amsterdam</cop><pub>Elsevier B.V</pub><doi>10.1016/j.agee.2018.09.002</doi><tpages>10</tpages><orcidid>https://orcid.org/0000-0001-8854-6005</orcidid><orcidid>https://orcid.org/0000-0002-5284-2897</orcidid><orcidid>https://orcid.org/000000022686745X</orcidid><orcidid>https://orcid.org/0000000252842897</orcidid><orcidid>https://orcid.org/0000000188546005</orcidid><oa>free_for_read</oa></addata></record> |
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subjects | acid soils Acidic soils Agricultural ecosystems Agricultural practices Agricultural production agroecological zones agroecosystems Agronomy Barley Carbon dioxide Cereal crops Climate Climate change Climate change mitigation Climate effects Climate-smart agriculture Climatic conditions climatic factors conventional tillage Crop yield Cropping systems Crops Digital agriculture Emissions ENVIRONMENTAL SCIENCES Food security Global warming global warming potential grain yield Greenhouse effect Greenhouse gas emissions Greenhouse gases Humid climates Management Meta-analysis Methane methane production Nitrous oxide No-tillage paddies Rice fields Soil conditions Soil properties soil quality Soil texture Texture Tillage Tradeoffs |
title | Greenhouse gas emissions and crop yield in no-tillage systems: A meta-analysis |
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