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  Identifying the optimum irrigation strategies to maximize canola yield and profitability under climate change in Guanzhong Plain, China

Saddique, Q., Liu, D. L., Ajaz, A., Wang, B., Gu, X., Adnan, M., Feng, P., Wang, Y., Zou, Y., Cai, H. (2025 online): Identifying the optimum irrigation strategies to maximize canola yield and profitability under climate change in Guanzhong Plain, China. - Irrigation Science.
https://doi.org/10.1007/s00271-025-01031-y

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???ViewItemFull_lblCiteItemAs???: https://publications.pik-potsdam.de/pubman/item/item_32450 ???ViewItemFull_lblCiteItemVersionAs???: https://publications.pik-potsdam.de/pubman/item/item_32450_2
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 ???ViewItemFull_lblCreators???:
Saddique, Qaisar1, ???ENUM_CREATORROLE_AUTHOR???           
Liu, De Li2, ???ENUM_CREATORROLE_AUTHOR???
Ajaz, Ali 2, ???ENUM_CREATORROLE_AUTHOR???
Wang, Bin2, ???ENUM_CREATORROLE_AUTHOR???
Gu, Xiaobo 2, ???ENUM_CREATORROLE_AUTHOR???
Adnan, Muhammad 2, ???ENUM_CREATORROLE_AUTHOR???
Feng, Puyu 2, ???ENUM_CREATORROLE_AUTHOR???
Wang, Yunfei2, ???ENUM_CREATORROLE_AUTHOR???
Zou, Yufeng2, ???ENUM_CREATORROLE_AUTHOR???
Cai, Huanjie2, ???ENUM_CREATORROLE_AUTHOR???
???ViewItemFull_lblAffiliations???:
1Potsdam Institute for Climate Impact Research, ou_persistent13              
2External Organizations, ou_persistent22              

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 ???ViewItemFull_lblAbstract???: Climate change has a substantial impact on Chinese canola production, introducing a high level of uncertainty regarding future climatic conditions and their potential impact on canola production and gross margins. This study focused on identifying the optimal irrigation strategy to enhance the profitability of canola production in the Guanzhong Plain under future climate change conditions. In this study, we used the calibrated Agricultural Production Systems sIMulator (APSIM)-Canola model with the downscaled daily climate projections from 27 general circulation models (GCMs). These simulations were conducted under two Shared Socio-economic Pathways scenarios (SSP245 and SSP585) to assess the impact of climate change on canola phenology, rainfed and irrigated crop yield. We also conducted a gross margin analysis to assess the profitability dynamics of supplying irrigation to rainfed canola crop. An increase in rainfed canola yield was observed for all simulation periods, with an average increase of 11%, 15%, and 17% for the 2030s, 2060s, and 2090s, respectively. Supplementary irrigation using a threshold of 10-60% of plant available water capacity (PAWC) was found to be effective. Overall, it led to a 28% increase in yield for rainfed and an 85% improvement in gross margin. Beyond the threshold of 60% PAWC, additional irrigation did not result in statistically significant increases in yield and gross margin. We identified the optimal amount of irrigation for achieving maximum water productivity (WP) ranges from 85 to 150 millimeters. By avoiding irrigation when the soil's plant available water capacity (PAWC) is over 60%, up to 44% of water can be saved. These findings could be useful for policymakers and farmers in planning for sustainable and enhanced canola production in the region.

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???ViewItemFull_lblLanguages???: eng - English
 ???ViewItemFull_lblDates???: 2024-08-212025-06-102025-07-04
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 ???ViewItemFull_lblPages???: 16
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???ENUM_IDENTIFIERTYPE_ORGANISATIONALK???: RD2 - Climate Resilience
???ENUM_IDENTIFIERTYPE_PIKDOMAIN???: RD2 - Climate Resilience
???ENUM_IDENTIFIERTYPE_WORKINGGROUP???: Hydroclimatic Risks
???ENUM_IDENTIFIERTYPE_RESEARCHTK???: Climate impacts
???ENUM_IDENTIFIERTYPE_RESEARCHTK???: Food & Agriculture
???ENUM_IDENTIFIERTYPE_REGIONALK???: Asia
???ENUM_IDENTIFIERTYPE_OATYPE???: Hybrid - DEAL Springer Nature
???ENUM_IDENTIFIERTYPE_DOI???: 10.1007/s00271-025-01031-y
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???ViewItemFull_lblSourceTitle???: Irrigation Science
???ViewItemFull_lblSourceGenre???: ???ENUM_GENRE_JOURNAL???, SCI, Scopus
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