気候変動が全球農業に与える影響：温度、水、害虫
令和8年1月8日|p.34
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The Impact of Climate Change on Global Agriculture
Climate change poses significant challenges to global agriculture, affecting crop yields, food security, and livelihoods worldwide. Rising temperatures, altered precipitation patterns, increased frequency of extreme weather events, and changing pest dynamics are some of the key factors influencing agricultural systems.
1. Temperature Changes
Increased temperatures can lead to heat stress in crops, reducing photosynthesis efficiency and yield potential. Warmer climates may also shift growing seasons, requiring farmers to adapt planting schedules and select more resilient crop varieties.
2. Water Availability
Changes in rainfall patterns and melting glaciers affect water availability for irrigation. Droughts and floods become more frequent, impacting soil health and nutrient cycling. Efficient water management practices are crucial for sustainable agriculture under these conditions.
3. Pest and Disease Dynamics
Warmer climates expand the range and activity periods of pests and diseases, threatening crop productivity. Integrated pest management strategies, including biological controls and resistant crop breeding, are essential to mitigate these risks.