Climatological Diversity of Producing Places for Vegetables in Japan
Abstract
Climatic variability, including extreme events such as heat waves, floods, and droughts, is one of main factors that threaten stable agricultural production. In fact, it has caused many agro-meteorological disasters all over the world. Furthermore, climate change will increase the frequency and severity of extreme events and will increase the risk of agro-meteorological disasters. Crop diversification that increase the variety of production locations, crops, enterprises or income sources, has been commonly identified at local scale, and is thought as an useful adaptation to climatic variability. However, little is known about crop diversification at national or international scales. Here, I focus on the spatial diversity of producing places, and propose a new index that quantifies the spatial diversity of producing places in consideration of climatological correlations between producing places. I named the index "Climatological Diversity of Producing Places (CDPP)." Second, using the CDPP, I investigated the long-term trends of vulnerability to climatic variability for 14 vegetables (31 cropping types) in Japan. I found that the GDPPs of 12 vegetables (17 cropping types) showed statistically significant increases. The results revealed the vulnerability to climatic variability has been reducing for many vegetables in Japan.
- Publication:
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AGU Fall Meeting Abstracts
- Pub Date:
- December 2012
- Bibcode:
- 2012AGUFM.B43E0454M
- Keywords:
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- 0402 BIOGEOSCIENCES / Agricultural systems;
- 1616 GLOBAL CHANGE / Climate variability;
- 1630 GLOBAL CHANGE / Impacts of global change;
- 1637 GLOBAL CHANGE / Regional climate change