GDHY_v1_220230727093123-DIAS20221121113753-en
English
Toshichika Iizumi
Institute for Agro-Environmental Sciences, National Agriculture and Food Research Institute
iizumit at affrc dot go dot jp
2023-07-27
DIAS Core Metadata Profile (based-on ISO 19115:2003/19139)
1.0(draft)
3
720
0.5
360
0.5
1
1
false
GDHY_version_1.2
2017-11-07
version 1.2
DIAS (Data Integration and Analysis System)
528:GDHY_v1_2
IDF (International DOI Foundation)
doi:10.20783/DIAS.528
The Global Dataset of Historical Yield (GDHY_v1_2) offers annual time series data of 0.5-degree grid-cell yield estimates of major crops worldwide. The crops considered in this dataset are maize, rice, wheat and soybean. The unit of yield data is t/ha. The grd-cell yield data were estimated using the satellite-derived crop-specific vegetation index and FAO-reported country yield statistics. Maize and rice have the data for each of two growing seasons (major/secondary). "Winter" and "spring" are used as the growing season categories for wheat. Only "major" growing season is available for soybean. These growing season categories are based on Sacks et al. (2010, DOI: 10.1111/j.1466-8238.2010.00551.x). The geographic distribution of harvested area changes with time in reality, but we used the time-constant data in 2000 (Monfreda et al., 208, doi:10.1029/2007GB002947). Many missing values are found in the first (1981) and last (2011) years because grid-cell yields are not estimated for these years when growing season spans two calendar years.
Toshichika Iizumi
Institute for Agro-Environmental Sciences, National Agriculture and Food Research Institute
029-838-8435
3-1-3 Kannondai
Tsukuba
Ibaraki
305-8604
Japan
iizumit at affrc dot go dot jp
Toshichika Iizumi
Institute for Agro-Environmental Sciences, National Agriculture and Food Research Institute
iizumit at affrc dot go dot jp
Agriculture > Agricultural Plant Science > Crop/Plant Yields
GCMD_science
The references (Iizumi et al., 2014, doi:10.1111/geb.12120; Iizumi and Ramankutty, 2016, doi:10.1088/1748-9326/11/3/034003; Iizumi et al., in review) should be cited when the dataset is used.
English
farming
Annual
-180
180
-90
90
1981-01-01
2011-01-01
Iizumi, T., Yokozawa, M., Sakurai, G., Travasso, M. I., Romanenkov, V., Oettli, P., Newby, T., Ishigooka, Y. and Furuya, J. (2014), Historical changes in global yields: major cereal and legume crops from 1982 to 2006. Global Ecology and Biogeography, 23, 346–357, doi:10.1111/geb.12120.
Iizumi, T., and N. Ramankutty (2016) Changes in yield variability of major crops for 1981–2010 explained by climate change. Environmental Research Letters, 11, 034003, doi:10.1088/1748-9326/11/3/034003.
Iizumi T, Kotoku M, Kim W, West PC, Gerber JS, Brown ME (2018) Uncertainties of potentials and recent changes in global yields of major crops resulting from census- and satellite-based yield datasets at multiple resolutions. PLoS ONE 13(9): e0203809. https://doi.org/10.1371/journal.pone.0203809
GDHY_version_1.2
2017-11-07
version 1.2
GDHY_v1_220230727093123-DIAS20221121113753-en
In this MD_DataIdentification class, we describe an identification information related to the project belong to this dataset.
DIAS Office
Japan Agency for Marine-Earth Science and Technology
3173-25, Showa-Cho, Kanazawa-ku
Yokohama-shi
Kanagawa
236-0001
Japan
dias-office at diasjp dot net
DIAS > Data Integration and Analysis System
No_Dictionary
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English
NetCDF
4
https://data.diasjp.net/dl/storages/filelist/dataset:528
File download from DIAS
The grid-cell yield estimates available in this dataset are a hybrid of satellite-derived crop-specific vegetation index and FAO-reported country yield statistics.