This article outlines the major scientific objectives of the SHui project that seeks to optimize soil and water use in agricultural systems in the EU and China,by considering major current scientific challenges in thi...This article outlines the major scientific objectives of the SHui project that seeks to optimize soil and water use in agricultural systems in the EU and China,by considering major current scientific challenges in this area.SHui(for Soil Hydrology research platform underpinning innovation to manage water scarcity in European and Chinese cropping systems)is large cooperative project that aims to provide significant advances through transdisciplinary research at multiple scales(plot,field,catchment and region).This paper explains our research platform of long-term experiments established at plot scale,approaches taken to integrate crop and hydrological models at field scale;coupled crop models and satellite-based observations at regional scales;decision support systems for specific farming situations;and the integration of these technologies to provide policy recommendations through socio-economic analysis of the impact of soil and water saving technologies.It also outlines the training of stake-holders to develop a basic common curriculum despite the subject being distributed across different disciplines and professions.As such,this article provides a review of major challenges for improving soil and water use in EU and China as well as information about the potential to access information made available by SHui,and to allow others to engage with the project.展开更多
Conservation agriculture,with its reduced soil disturbance and enhanced cover,has the potential to increase carbon storage in the topsoil.However,it remains unclear how various tillage practices alter topsoil organic ...Conservation agriculture,with its reduced soil disturbance and enhanced cover,has the potential to increase carbon storage in the topsoil.However,it remains unclear how various tillage practices alter topsoil organic carbon(SOC)storage in the long-term affected by climate change.This study investigates the impacts of three tillage practices,Conventional Tillage(CT),Mulch Tillage(MT),and No-Till(NT)on future SOC stocks in the topsoil(0-15 cm),considering climate change scenarios(RCP4.5 and RCP8.5)and local soil erosion effects.Therefore,we calibrated and applied the integrated terrestrial C-N-P cycle model(N14CP)to a long-term study site with a cereal-maize dominant crop rotation in Lower Austria.Our calibration(1994-1995)resulted in a RMSE of 45.3 g m^(-2)and a PBIAS of 9.6%,while validation(2000-2023)resulted in a RMSE of 103.8 g m^(-2) and a PBIAS of 3.9%.Long-term simulations indicate that topsoil SOC stocks tend to increase under MT by+309 g m^(-2)(baseline),+233 g m^(-2)(RCP4.5),and+148 g m^(-2)(RCP8.5),under NT by+1145 g m^(-2)(baseline),+1059 g m^(-2)(RCP4.5),and+961 g m^(-2)(RPC8.5),but SOC stocks may decrease under CT by-209 g m^(-2)(baseline),-267 g m^(-2)(RCP4.5),and-332 g m^(-2)(RCP8.5)by 2100.In contrast to conventional management,our tested conservation agriculture practices(MT and NT)may both serve as viable options to mitigate climate change and erosion impacts on topsoil organic carbon in comparable agro-ecological settings.展开更多
基金This work has been supported by Project SHui which is co-funded by the European Union Project GA 773903 and the Chi-nese MOST
文摘This article outlines the major scientific objectives of the SHui project that seeks to optimize soil and water use in agricultural systems in the EU and China,by considering major current scientific challenges in this area.SHui(for Soil Hydrology research platform underpinning innovation to manage water scarcity in European and Chinese cropping systems)is large cooperative project that aims to provide significant advances through transdisciplinary research at multiple scales(plot,field,catchment and region).This paper explains our research platform of long-term experiments established at plot scale,approaches taken to integrate crop and hydrological models at field scale;coupled crop models and satellite-based observations at regional scales;decision support systems for specific farming situations;and the integration of these technologies to provide policy recommendations through socio-economic analysis of the impact of soil and water saving technologies.It also outlines the training of stake-holders to develop a basic common curriculum despite the subject being distributed across different disciplines and professions.As such,this article provides a review of major challenges for improving soil and water use in EU and China as well as information about the potential to access information made available by SHui,and to allow others to engage with the project.
基金financial support for the project TUdi,funded by the European Union Horizon 2020:Innovation and Research 101000224.
文摘Conservation agriculture,with its reduced soil disturbance and enhanced cover,has the potential to increase carbon storage in the topsoil.However,it remains unclear how various tillage practices alter topsoil organic carbon(SOC)storage in the long-term affected by climate change.This study investigates the impacts of three tillage practices,Conventional Tillage(CT),Mulch Tillage(MT),and No-Till(NT)on future SOC stocks in the topsoil(0-15 cm),considering climate change scenarios(RCP4.5 and RCP8.5)and local soil erosion effects.Therefore,we calibrated and applied the integrated terrestrial C-N-P cycle model(N14CP)to a long-term study site with a cereal-maize dominant crop rotation in Lower Austria.Our calibration(1994-1995)resulted in a RMSE of 45.3 g m^(-2)and a PBIAS of 9.6%,while validation(2000-2023)resulted in a RMSE of 103.8 g m^(-2) and a PBIAS of 3.9%.Long-term simulations indicate that topsoil SOC stocks tend to increase under MT by+309 g m^(-2)(baseline),+233 g m^(-2)(RCP4.5),and+148 g m^(-2)(RCP8.5),under NT by+1145 g m^(-2)(baseline),+1059 g m^(-2)(RCP4.5),and+961 g m^(-2)(RPC8.5),but SOC stocks may decrease under CT by-209 g m^(-2)(baseline),-267 g m^(-2)(RCP4.5),and-332 g m^(-2)(RCP8.5)by 2100.In contrast to conventional management,our tested conservation agriculture practices(MT and NT)may both serve as viable options to mitigate climate change and erosion impacts on topsoil organic carbon in comparable agro-ecological settings.
