Precipitation manipulation experiments have shown diverse terrestrial carbon (C) cycling responses when the ecosystem is subjected to different magnitudes of altered precipitation, various experimental durations or heterogeneity in local climate. However, how these factors combine to affect C cycle responses to changes in precipitation remains unclear.

中文翻译：

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降水操纵和陆地碳循环：处理量级、实验持续时间和当地气候的作用

当生态系统受到不同程度的降水变化、不同的实验持续时间或当地气候的异质性时，降水操纵实验显示出不同的陆地碳 (C) 循环响应。然而，这些因素如何结合起来影响 C 循环对降水变化的响应仍不清楚。