Under the B2 scenario of no CO2 fertilization and crop system change, the yield of rain-fed and irrigated maize will separately decrease 2% and 14.3% in 2070s.

在不考虑CO_2肥效作用和种植制度变化的B2情景下，未来我国雨养和灌溉玉米产量分别下降2%和14.3%。

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Under the B2 scenario of no CO2 fertilization and crop system change, the yield of rain-fed and irrigated maize will separately decrease 2% and 14.3% in 2070s.

在不考虑CO_2肥效作用和种植制度变化的B2情景下，未来我国雨养和灌溉玉米产量分别下降2%和14.3%。

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