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#Apsim model manual update
#Apsim model manual code

apsim_version: Display available APSIM 'Classic' and APSIM-X versions.

apsim.options: Environment which stores APSIM options.

apsim_options: Setting some options specific to APSIM (7.x) 'Classic'.

apsim_example: Access Example APSIM Simulations.

apsim: Run an APSIM (7.x) 'Classic' simulation.

Improved climate risk simulations for rice in arid environments. Correlation between temperature and phenology prediction error in rice (Oryza sativa L.). Van Oort, P.A.J., Zhang, T., de Vries, M.E., Heinemann, A.B., Meinke, H.

Quantification of climatic risks (drought, heat, cold).

Selection of desirable crop traits and management for different environments (TPE).

See for example van Oort et al (2011, 2014)

Soil and physiological research: if the model does not reproduce your data well and you have systematic errors, then that can be the starting point for research, in which your formulate hypotheses for the cause of systematic error.

ORYZA2000 can be used for the following applications (and probably more!): Further improvements are still needed, all papers cited above highlight both the qualities and the remaining uncertainties in the different model versions.

#Apsim model manual code

The reason why these different model branches have emerged is mostly due to differences in opinion on whether source code should be open or not. A few more improvements were implemented in a later version ORYZA2000v2n14s1 used in a recent study on impacts of climate change on rice in Africa ( van Oort et al, 2017).These different subsversions were systematically tested and compare for two sites in Senegal ( van Oort et al. New heat and cold sterility subroutines were developed, incorporated into version v2n13, resulting in a family of model subversion v2n13s1 to v2n13s26.An improved rice phenology calibration program was developed ( van Oort et al.(2015) for a recent overview of APSIM-ORYZA. This version can be downloaded from the APSIM website. The physiology part of ORYZA2000 (the Bouman et al 2001 version, not the later v3 version) has been integrated in APSIM (= ORYZA2000 crop growing on an APSIM soil).Version 3 ( ORYZA2000v3) with many improvements has been released by IRRI.Since then there have been at least four major developments:

#Apsim model manual update

The last major update of open source code is version 2 number 13 (v2n13). Since the publication of the ORYZA200 book (Bouman et al., 2001) a number of important updates have been made. The ORYZA2000 model originates from the Wageningen SUCROS model. Los Baños (Philippines): International Rice Research Institute, and Wageningen: Wageningen University and Research Centre. Bouman BAM, Kropff MJ, Tuong TP, Wopereis MCS, ten Berge HFM, van Laar HH.The ORYZA2000v2n13 model is fully documented in a book and website, see the references below Improved Climate Risk Simulations for Rice in Arid Environments. Van Oort P.A.J., de Vries M.E., Yoshida H, Saito K., 2015. Global Change Biology, ORYZA2000v2n13 subversions developed for Improved Climate Risk Simulations for Rice in Arid Environments. Impacts of climate change on rice production in Africa and causes of simulated yield changes. Supporting material for the following scientific publication: ORYZA2000v2n14s1 subversion developed for Rice Climate Change study for Africa.