Water Stress

Water stress in agriculture occurs when a plant’s water supply is insufficient to meet its needs, resulting in reduced growth, productivity, or even crop death. It is caused by factors such as drought, improper irrigation practices, or changes in the water table, and can have severe consequences for agricultural and forestry yields.

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Impact on Plants and Yield:

• Crop Failure: Severe water stress can lead to total crop failure, particularly in water-sensitive species like maize, soybeans, and coffee.
• Reduced Photosynthesis: Lack of water limits a plant’s ability to carry out photosynthesis, stunting growth and reducing crop yields.
• Susceptibility to Disease: Water-stressed plants are more vulnerable to pests and diseases, compounding productivity losses.
• Long-Term Effects on Forestry: Persistent water stress weakens trees, reducing timber quality and increasing vulnerability to wildfires.

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Why It Matters:
Water stress directly threatens global food security and the stability of natural ecosystems. With agriculture consuming nearly 70% of freshwater globally, improving water management practices is essential to mitigating the effects of water stress on crops and forests.

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Did You Know?

Water stress can reduce crop yields by up to 50% in severe drought conditions.