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http://dx.doi.org/10.5532/KJAFM.2022.24.1.35

Spatial Assessment of Climate Suitability for Summer Cultivation of Potato in North Korea  

Kang, Minju (Department of Plant Science, Seoul National University)
Hyun, Shinwoo (Department of Agriculture, Forestry and Bioresources, Seoul National University)
Kim, Kwang Soo (Department of Plant Science, Seoul National University)
Publication Information
Korean Journal of Agricultural and Forest Meteorology / v.24, no.1, 2022 , pp. 35-47 More about this Journal
Abstract
Expansion of potato production areas can improve the food security in North Korea because the given crop has less requirements for agricultural materials and facilities. The Global Agro-Ecological Zones (GAEZ) model, which was developed to evaluate climate suitability under different cultivation conditions, was used to identify potential areas for the potato production. The spatial estimates of crop suitability under low and high input management conditions were downloaded from the GAEZ data portal. The values of suitability were obtained at the potato occurrence sites retrieved from the Global Biodiversity Information Facility (GBIF) database. The suitable areas for the potato production were identified using a threshold value derived from the suitability estimates at the occurrence sites. It was found that 90% of the occurrence sites had the suitability index value >3,333, which was set to be the threshold value. The suitable areas in North Korea were summarized by province and county. Rice cultivation areas were excluded from the analysis. The reported relative acreage of potato production was better represented by the suitable areas under the low input management options than the high input conditions. The suitable areas also had a similar distribution to the reported acreage of potato production by county. These results indicated that the GAEZ model would be useful to identify the candidate production areas, which would facilitate the increases in potato production especially under future climate conditions. Furthermore, monthly maps of crop suitability can be used to design cropping systems that would improve crop production under the limited use of agricultural materials and facilities.
Keywords
Suitable area; Spatial assessment; Low input management; Climate change; Uncertainty;
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