The food calories produced in both MP and BPM showed a significant increasing trend ( p < 0.001), with a growth rate of 24.73 × 10 12 kcal/year and 7.59 × 10 12 kcal/year, respectively, in contrast to a decreasing trend (−0.60 × 10 12 kcal/year) in MM.
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The Spatio-Temporal Evolution of Food Production and Self-Sufficiency in China from 1978 to 2020: From the Perspective of Calories.
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