Brief Status Report from - PowerPoint Presentation

Brief Status Report from The Landscape Management of Agricultural Systems (LMAS) Network Xunhua Zheng(corresponding to: Xunhua.zheng@post.iap.ac.cn) Croplands Research Group Meeting, November 10-11, 2016, Phoenix

Croplands Research Group Meeting, November 10-11, 2016, Phoenix The LMAS network participants PartnersParticipantsInstitutions Remarks China Bo ZHU Changchun SONG Chunyan LIU Xunhua ZHENG Yong LI IMDE-CAS NEIGAE-CAS IAP-CAS IAP-CAS/UCAS ISA-CAS bzhu@imde.ac.cn songcc@mail.neigae.ac.cn lcy@post.iap.ac.cn Xunhua.zheng@post.iap.ac.cn yli@isa.ac.cn Xiaotang JU CAU juxt@cau.edu.cn Ligang WANG CAAS wangligang@caas.cn France Jean-Louis Drouet Grignon , INRA Jean-louis.drouet@grignon.inra.fr Germany Klaus Butterbach-Bahl IMK-IFU, KIT klaus.butterbach-bahl@kit.edu Spain Alonso Moya Maria Jose OECC MJAMoya@magrama.es Jose Albiac Unidad Economia Agraria , CITA-DGA maella@unizar.es Robert Savé M. Viticulture and Enology, Environment & Global Change Area, IRTA robert.save@irta.cat USA April Leytem USDA-ARS april.leytem@ars.usda.gov

Management Sustaining productivity (to protect food security & ecosystem health)Mitigating GHGs (to combat climate change) Reducing air pollutants (to protect air quality) Limiting N-loads to waters (to protect water quality) Changing climate & environment Croplands Research Group Meeting, November 10-11, 2016, Phoenix Management of Gas Exchanges Relating to Four Goals to solve sustainability problems

Croplands Research Group Meeting, November 10-11, 2016, Phoenix Model-based tools: required for exploring the multi-goal best management Strategy (BMS)Many processes determine GHGs from catchment/landscapes. They can be integrated by three-dimensional catchment-ecosystem model(s) that are expect to be the core of decision-supporting tools for exploring the BMS. Productivity Aquatic ecosystem Aquatic ecosystem OC & ON NO 2 - N 2 Leaching or runoff Leaching Hydrological processes Leaching Land NO 3 - NO N 2 O N 2 O NO CH 4 CO 2 NH 3 CO 2 VOCs HONO N & C transfers/transformations at the catchment scale Min. Nitr . Denitr . NH 4 + DOC

Croplands Research Group Meeting, November 10-11, 2016, Phoenix Models for Supporting Landscape management:NitroScape

Daily N 2O fluxDaily NO3- flux Croplands Research Group Meeting, November 10-11, 2016, Phoenix Models for Supporting Landscape management: LandscapeDNDC

Croplands Research Group Meeting, November 10-11, 2016, Phoenix Models for Supporting Landscape management:LandscapeDNDCN2O fluxesBiomass Molina-Herrera et al., 2016, Science of the Total Environment

Croplands Research Group Meeting, November 10-11, 2016, Phoenix Models for Supporting Landscape management:LandscapeDNDCMolina-Herrera et al., 2016, Science of the Total EnvironmentModel simulations at 8 sites in Europe: N2O emission and nitrate leaching can be simultaneously reduced by optimizing agricultural management Current practice Optimized practice Current practice Optimized practice N 2 O NO 3 - N 2 O NO 3-

Croplands Research Group Meeting, November 10-11, 2016, PhoenixCNMM-DNDC incorporates the coupled carbon and nitrogen processes of transfers and transformations into a 3D hydrology framework of DHSVM that is a mature spatial-distributed catchment model. Models for Supporting Landscape management:CNMM-DNDC

DSOLEM Structure/Procedures Croplands Research Group Meeting, November 10-11, 2016, Phoenix DSOLEM: a potential decision-support tool using CNMM-DNDC online as its scientific core

Comprehensive observations to validate 3D catchment- ecosystem model (s), like CNMM-DNDC Croplands Research Group Meeting, November 10-11, 2016, Phoenix Models for Supporting Landscape management: CNMM-DNDC

Croplands Research Group Meeting, November 10-11, 2016, PhoenixValidation of DSOLEM simulations of the goal variables DSOLEM: a potential decision-support tool using CNMM-DNDC online as its scientific core

农田管理 氮肥施用量秸秆还田率耕作方式情景组数情景设置方案(0,225,25)*(0,0.9,0.15)(0,1,1)1072 Constrains Result Crop yields Runoff N loss Yield # Runoff N loss * BMS Maize + wheat # Loss rate * > 7 . 0  6.5 CTF100R00 9 . 80 6.4 > 7 .0  8.0 CTF100R90 9 . 8 1 7.2     Baseline 7 . 33 11.5 Fert . N rate Residue ratio Tillage Scenario number Method to set management scenarios (0 , 225, 25) (0 , 0.9, 0.15 ) (0 , 1, 1 ) 10  7  2 CTF100R00: conventional tillage, fertilizer at 100 kg N ha -1 yr -1 , no residue recycled. CTF100R90: conventional tillage, fertilizer at 100 kg N ha -1 yr-1, residue recycled by 90%. # Unit：kg DM ha-1 yr-1；* Unit：kg N ha-1 yr-1; BMS, the best management strategy. Croplands Research Group Meeting, November 10-11, 2016, Phoenix DSOLEM : a potential decision-support tool using CNMM-DNDC online as its scientific core Test for the DSOLEM function of BMS identification

Croplands Research Group Meeting, November 10-11, 2016, Phoenix DSOLEM: a potential decision-support tool using CNMM-DNDC online as its scientific core Baseline (the current management practice) BMP (CTF100R00) Crop yield Crop yield NO 3 - leaching NO 3 - leaching Test for the DSOLEM function of Decision-support

Croplands Research Group Meeting, November 10-11, 2016, Phoenix DSOLEM: a potential decision-support tool using CNMM-DNDC online as its scientific core Baseline (the current management practice) BMP (CTF100R00) Test for the DSOLEM function of Decision-support

Croplands Research Group Meeting, November 10-11, 2016, Phoenix Discussion on future LMAS network Possibility of network project(s) on:Development of effective decision-support tools for identifying BMS at the catchment or landscape scales?Validation of biogeochemical models as the scientific cores of decision-support tools? Test of available decision-support tools at selected catchment/landscapes? …

Xunhua Zheng from LAPC, Institute of Atmospheric Physics, Chinese Academy of Sciences, Beijing 100029, China Thanks for your attention !