While soil respiration is known to be controlled by a range of biotic and abiotic factors, its temperature sensitivity in global models is largely related to climate parameters. Here, we show that temperature sensitivity of soil respiration is primarily controlled by interacting soil properties and only secondarily by vegetation traits and plant growth conditions. Temperature was not identified as a primary driver for the response of soil respiration to warming. In contrast, the nonlinearity and large spatial variability of identified controls stress the importance of the interplay among soil, vegetation and climate parameters in controlling warming responses. Global models might predict current soil respiration but not future rates because they neglect the controls exerted by soil development. To accurately predict the response of soil respiration to warming at the global scale, more observational studies across pedogenetically diverse soils are needed rather than focusing on the isolated effect of warming alone.

虽然已知土壤呼吸受一系列生物和非生物因素控制，但其在全球模型中的温度敏感性主要与气候参数有关。在这里，我们表明土壤呼吸的温度敏感性主要由相互作用的土壤性质控制，其次是植被性状和植物生长条件。温度未被确定为土壤呼吸对变暖的响应的主要驱动因素。相比之下，已识别控制的非线性和较大的空间变异性强调了土壤、植被和气候参数之间相互作用在控制变暖响应中的重要性。全球模型可能会预测当前的土壤呼吸，但不能预测未来的速率，因为它们忽略了土壤发育所施加的控制。