The vegetation in this study can be divided into four categories: broad-leaved trees, conifers, grasslands and crops, and shrubs. Each vegetation uses an average emission factor, among which, the emission factor of broad-leaved trees is one quarter of this study, resulting in the difference of ~ 12 TG Cyr − 1 in the estimation result of isoprene emission; the average emission factor of grasslands, crops and shrubs is half of this study, resulting in 2.5 TG Cyr − 1 Emission differences.
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