Film mulching can significantly increase crop yields, but long-term continuous mulching will reduce the soil fertility and lead to soil quality degradation. Incorporating exogenous carbon (C) is widely recognized as an effective countermeasure for improving degraded farmland soil under mulching in semiarid areas.

中文翻译：

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秸秆衍生生物炭调节土壤酶活性，减少温室气体排放，提高覆盖农田的碳积累


薄膜覆盖可以显著提高作物产量，但长期连续覆盖会降低土壤肥力并导致土壤质量下降。掺入外源碳 （C） 被广泛认为是改善半干旱地区覆盖下退化农田土壤的有效对策。