Dear all, I search a material and methods, with reference, in order to simulate climate change in the field for agronomy study. Which climatic variables should I change? How? Thanks in advance for you contribute.
There is some meteorological daily data grid freely available at JRC-Agri4cast for all Europe with a 25*25 km resolution conceived for modelling studies in agronomy. These grids propose meteo files with temperature, RH, solar radiation, wind and Penman-Montheit ET0 whit a paper supporting it.. (Duvalier et al 2014 if I'm not wrong...)
There is some meteorological daily data grid freely available at JRC-Agri4cast for all Europe with a 25*25 km resolution conceived for modelling studies in agronomy. These grids propose meteo files with temperature, RH, solar radiation, wind and Penman-Montheit ET0 whit a paper supporting it.. (Duvalier et al 2014 if I'm not wrong...)
Dear Giuseppe Badagliacca ,
There are many variables you can alter to reflect the changes in climate, (rainfall and temperature).
Hope my answer will help you
Regards
Miyuru
Hello dear Giuseppe Badagliacca
You can take global shortwave radiation through (LiCor Li-190), air temperature and relative humidity (Vaisala HMP 45C), wind speed (anemometer), and rainfall (Pronamic 101). You will use these data to estimate hourly and daily values of the reference evaporation (ETo, mm hr-1, or mm d-1). You can also determine crop-factor, KC, which is calculated from the equation ETC = KC. ETO.
Dear Guiseppe,
It would be much easier to look at the effect of either temperature, water availability or CO2, than manipulate several variables simultaneously. The problem is that they will interact with each other and it will be hard to figure out the exact response mechanism
You can check our paper on the rainfall exclusion experiment conducted at the Site expérimental de Puéchabon . (file attached). http://puechabon.cefe.cnrs.fr/
This is not a crop experiment, but this rainfall exclusion could be done at the agricultural field.
A common method for assessing the climate change impacts over crop systems is trough a crop simulation model and climate database "adjusted" for future scenarios. Then, you'll compare crop ouputs between current climate and "future" climate.
It is very relevant that crop model you select, is sensitive to CO2 atmospheric concetration in order to simulate biomass and yield responses.
If you have rainfall, solar radiation, maximum and minimun temperature daily databases, is easy to obtain the corresponding "future" climate database. Website http://ccafs-climate.org/data_bias_correction/ (CCAFS: Climate Change, Agriculture and Food Security) allows to adjust your real climate serie to a "future" serie considering a RPC (4.5, 8.5, etc), in a given time lapse, using one or more climate change models.
The future CO2 values (according the RPC scenario) must be input in the crop simulation model.
A paper on CO2 and crops you might want to check out: https://www.nature.com/articles/srep13923
More interest in the use of microorganisms in the propagation of crops with a corresponding significant less use of fertilisers and biocides as runoff into surface water streams and srtisian reservoirs is causing serious problems.
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