Climate-smart planting for potato to balance economic return and environmental impact across China

Potato production plays an important role in safeguarding food security in China since the central government implemented the ‘Potato-as-Staple-Food’ policy in 2015. However, a key challenge facing China's potato production is to realize a tradeoff between economic return and environmental impa...

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Veröffentlicht in:The Science of the total environment 2022-12, Vol.850, p.158013-158013, Article 158013
Hauptverfasser: Li, Yang, Wang, Jing, Chen, Renwei, Wang, Enli, Wang, Bin, Yu, Qiang, Hu, Qi, Pan, Zhihua, Pan, Xuebiao
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container_start_page 158013
container_title The Science of the total environment
container_volume 850
creator Li, Yang
Wang, Jing
Chen, Renwei
Wang, Enli
Wang, Bin
Yu, Qiang
Hu, Qi
Pan, Zhihua
Pan, Xuebiao
description Potato production plays an important role in safeguarding food security in China since the central government implemented the ‘Potato-as-Staple-Food’ policy in 2015. However, a key challenge facing China's potato production is to realize a tradeoff between economic return and environmental impact. Effective strategies for reducing carbon emission without compromising potato yield remain to be developed. This study conducted a comprehensive assessment by integrating climate, soil, crop, and agricultural input data, crop model and life cycle impact assessment model to quantify potato yields, GHG emission amounts and intensities (GHGI), and economic benefits under the conventional planting pattern (CPP), the lowest GHG emission pattern (LEP), and the highest yield pattern (HYP) across China's potato planting regions including four sub-regions, i.e., North Single planting region (NS), Central Double planting region (CD), South Winter planting region (SW), and Southwest Mixed planting region (SWM). Averaged fresh potato yield, GHG emission amount, and GHGI under the CPP were 21.7 t ha−1, 2815.1 kg CO2eq ha−1, and 137.3 kg CO2eq t−1, respectively, in China's potato planting region. Compared with the CPP, averaged GHG emission amount and GHGI under the LEP could be decreased by 48.2 % and 51.5 % respectively while the fresh potato yield and economic benefit could be enhanced by 8.1 % and 18.5 %, respectively. For the HYP, averaged GHG emission amount and GHGI could be decreased by 24.2 % and 39.8 % respectively while the fresh potato yield and economic benefit could be enhanced by 18.7 % and 39.6 %, respectively, compared with the CPP. Across the four potato planting regions, SW had the largest potential in reducing GHG emissions owing to a high reduction amount of nitrogen application rate. Our study demonstrates that optimizing agronomic management could reduce environmental impact without compromising economic benefit and provides a scientific method for assessing crop potential to realize the climate-smart planting. [Display omitted] •GHG emissions were estimated by life cycle impact assessment model and crop model.•Climate-smart management practice was identified to reduce GHG and increase yield.•Climate-smart planting could increase yield by 13 % and reduce GHG emission by 36 %.
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However, a key challenge facing China's potato production is to realize a tradeoff between economic return and environmental impact. Effective strategies for reducing carbon emission without compromising potato yield remain to be developed. This study conducted a comprehensive assessment by integrating climate, soil, crop, and agricultural input data, crop model and life cycle impact assessment model to quantify potato yields, GHG emission amounts and intensities (GHGI), and economic benefits under the conventional planting pattern (CPP), the lowest GHG emission pattern (LEP), and the highest yield pattern (HYP) across China's potato planting regions including four sub-regions, i.e., North Single planting region (NS), Central Double planting region (CD), South Winter planting region (SW), and Southwest Mixed planting region (SWM). Averaged fresh potato yield, GHG emission amount, and GHGI under the CPP were 21.7 t ha−1, 2815.1 kg CO2eq ha−1, and 137.3 kg CO2eq t−1, respectively, in China's potato planting region. Compared with the CPP, averaged GHG emission amount and GHGI under the LEP could be decreased by 48.2 % and 51.5 % respectively while the fresh potato yield and economic benefit could be enhanced by 8.1 % and 18.5 %, respectively. For the HYP, averaged GHG emission amount and GHGI could be decreased by 24.2 % and 39.8 % respectively while the fresh potato yield and economic benefit could be enhanced by 18.7 % and 39.6 %, respectively, compared with the CPP. Across the four potato planting regions, SW had the largest potential in reducing GHG emissions owing to a high reduction amount of nitrogen application rate. Our study demonstrates that optimizing agronomic management could reduce environmental impact without compromising economic benefit and provides a scientific method for assessing crop potential to realize the climate-smart planting. [Display omitted] •GHG emissions were estimated by life cycle impact assessment model and crop model.•Climate-smart management practice was identified to reduce GHG and increase yield.•Climate-smart planting could increase yield by 13 % and reduce GHG emission by 36 %.</description><identifier>ISSN: 0048-9697</identifier><identifier>EISSN: 1879-1026</identifier><identifier>DOI: 10.1016/j.scitotenv.2022.158013</identifier><language>eng</language><publisher>Elsevier B.V</publisher><subject>Agronomic management ; Crop model ; Economic benefit ; GHG emission ; Life cycle assessment model ; Yield</subject><ispartof>The Science of the total environment, 2022-12, Vol.850, p.158013-158013, Article 158013</ispartof><rights>2022 Elsevier B.V.</rights><lds50>peer_reviewed</lds50><woscitedreferencessubscribed>false</woscitedreferencessubscribed><citedby>FETCH-LOGICAL-c348t-d85b1ac2574664d0ea088337cd77245ae02145ece9335614a1a6f505d683af53</citedby><cites>FETCH-LOGICAL-c348t-d85b1ac2574664d0ea088337cd77245ae02145ece9335614a1a6f505d683af53</cites></display><links><openurl>$$Topenurl_article</openurl><openurlfulltext>$$Topenurlfull_article</openurlfulltext><thumbnail>$$Tsyndetics_thumb_exl</thumbnail><linktohtml>$$Uhttps://dx.doi.org/10.1016/j.scitotenv.2022.158013$$EHTML$$P50$$Gelsevier$$H</linktohtml><link.rule.ids>314,780,784,3550,27924,27925,45995</link.rule.ids></links><search><creatorcontrib>Li, Yang</creatorcontrib><creatorcontrib>Wang, Jing</creatorcontrib><creatorcontrib>Chen, Renwei</creatorcontrib><creatorcontrib>Wang, Enli</creatorcontrib><creatorcontrib>Wang, Bin</creatorcontrib><creatorcontrib>Yu, Qiang</creatorcontrib><creatorcontrib>Hu, Qi</creatorcontrib><creatorcontrib>Pan, Zhihua</creatorcontrib><creatorcontrib>Pan, Xuebiao</creatorcontrib><title>Climate-smart planting for potato to balance economic return and environmental impact across China</title><title>The Science of the total environment</title><description>Potato production plays an important role in safeguarding food security in China since the central government implemented the ‘Potato-as-Staple-Food’ policy in 2015. However, a key challenge facing China's potato production is to realize a tradeoff between economic return and environmental impact. Effective strategies for reducing carbon emission without compromising potato yield remain to be developed. This study conducted a comprehensive assessment by integrating climate, soil, crop, and agricultural input data, crop model and life cycle impact assessment model to quantify potato yields, GHG emission amounts and intensities (GHGI), and economic benefits under the conventional planting pattern (CPP), the lowest GHG emission pattern (LEP), and the highest yield pattern (HYP) across China's potato planting regions including four sub-regions, i.e., North Single planting region (NS), Central Double planting region (CD), South Winter planting region (SW), and Southwest Mixed planting region (SWM). Averaged fresh potato yield, GHG emission amount, and GHGI under the CPP were 21.7 t ha−1, 2815.1 kg CO2eq ha−1, and 137.3 kg CO2eq t−1, respectively, in China's potato planting region. Compared with the CPP, averaged GHG emission amount and GHGI under the LEP could be decreased by 48.2 % and 51.5 % respectively while the fresh potato yield and economic benefit could be enhanced by 8.1 % and 18.5 %, respectively. For the HYP, averaged GHG emission amount and GHGI could be decreased by 24.2 % and 39.8 % respectively while the fresh potato yield and economic benefit could be enhanced by 18.7 % and 39.6 %, respectively, compared with the CPP. Across the four potato planting regions, SW had the largest potential in reducing GHG emissions owing to a high reduction amount of nitrogen application rate. Our study demonstrates that optimizing agronomic management could reduce environmental impact without compromising economic benefit and provides a scientific method for assessing crop potential to realize the climate-smart planting. 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However, a key challenge facing China's potato production is to realize a tradeoff between economic return and environmental impact. Effective strategies for reducing carbon emission without compromising potato yield remain to be developed. This study conducted a comprehensive assessment by integrating climate, soil, crop, and agricultural input data, crop model and life cycle impact assessment model to quantify potato yields, GHG emission amounts and intensities (GHGI), and economic benefits under the conventional planting pattern (CPP), the lowest GHG emission pattern (LEP), and the highest yield pattern (HYP) across China's potato planting regions including four sub-regions, i.e., North Single planting region (NS), Central Double planting region (CD), South Winter planting region (SW), and Southwest Mixed planting region (SWM). Averaged fresh potato yield, GHG emission amount, and GHGI under the CPP were 21.7 t ha−1, 2815.1 kg CO2eq ha−1, and 137.3 kg CO2eq t−1, respectively, in China's potato planting region. Compared with the CPP, averaged GHG emission amount and GHGI under the LEP could be decreased by 48.2 % and 51.5 % respectively while the fresh potato yield and economic benefit could be enhanced by 8.1 % and 18.5 %, respectively. For the HYP, averaged GHG emission amount and GHGI could be decreased by 24.2 % and 39.8 % respectively while the fresh potato yield and economic benefit could be enhanced by 18.7 % and 39.6 %, respectively, compared with the CPP. Across the four potato planting regions, SW had the largest potential in reducing GHG emissions owing to a high reduction amount of nitrogen application rate. Our study demonstrates that optimizing agronomic management could reduce environmental impact without compromising economic benefit and provides a scientific method for assessing crop potential to realize the climate-smart planting. [Display omitted] •GHG emissions were estimated by life cycle impact assessment model and crop model.•Climate-smart management practice was identified to reduce GHG and increase yield.•Climate-smart planting could increase yield by 13 % and reduce GHG emission by 36 %.</abstract><pub>Elsevier B.V</pub><doi>10.1016/j.scitotenv.2022.158013</doi><tpages>1</tpages></addata></record>
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subjects Agronomic management
Crop model
Economic benefit
GHG emission
Life cycle assessment model
Yield
title Climate-smart planting for potato to balance economic return and environmental impact across China
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