Sentences with phrase «grain yield declines»

The researchers found out that in response to global temperature increases, grain yield declines are predicted for most regions in the world.

Not exact matches

In particular, «agricultural commodities are supported by the dynamics of water shortages in Asia and the Western United States, the declining payback from the green revolution in terms of improving crop yields and the increasing demand from Asia for a diet based more on grains and meat as the population becomes wealthier,» the group responded by e-mail.

The new study suggests a decline of between 10 and 15 per cent in grain yields in Africa, tropical Latin America and much of India and Southeast Asia, as well as a substantial increase in famine.

The widely used rule of thumb is that for each 1 - degree - Celsius rise in temperature above the optimum during the growing season farmers can expect a 10 - percent decline in grain yields.

In those regions, cereal grain yields are projected to decline under climate change scenarios, across the full range of expected warming... Thus, countries with the lowest incomes may be the hardest hit.»