I have reviewed  " SOC stabilization mechanisms and temperature sensitivity in old terraced soils." The study aimed to explore the stabilization mechanisms and temperature response of  SOC in an old terraced soils. The topic is very interesting and within the scope of the journal. Generally, the manuscript is very well structured and presents the obtained results. The conclusion has highlighted the implication of terracing on soil carbon stabilization in the context of climate warming. However, below are some corrections:

Lines, 15-20. Our mechanistic understanding of soil organic carbon (SOC) (de-) stabilization mechanisms and of the persistence of SOC stored in terraced soils, however, is far from complete. Here we explored the factors controlling 20 SOC stability and temperature sensitivity (Q10) of abandoned prehistoric agricultural terrace soils in NE England, using soil fractionation and temperature sensitive incubation in combination with measurements of terrace soil burial age. Should be replaced with  “However, our mechanistic understanding of soil organic carbon (SOC) (de-) stabilization mechanisms and the persistence of SOC stored in terraced soils is far from complete. Here we explored the factors controlling  SOC stability and temperature sensitivity (Q10) of abandoned prehistoric agricultural terrace soils in NE England, using soil fractionation and temperature sensitive incubation combined with terrace soil burial age measurements.”

Line 20 suggest that burial should be “suggest that the burial” Line 55 function of molecular complexity should be “function of the molecular complexity, through cut should be “ through the cut.” Line 70 Both the current SOC status should be “The current SOC status”

Lines 159 that repesent should be replaced with “representing” Lines 255 between the terrace soil layers and control soil layers should be “ between the terrace and control soil layers”

Lines 320 relative should be changed to “relatively.” Lines 335 In order to further should be “To further”

Lines 360 have a significant lower should be “have a significantly lower.”

Lines 370 non-terracd should be corrected “non-terraced.”

Lines 380 with the observation should be changed to “by observing.”

Lines 390 require should be “requires” Lines 395 which can dampen, consider changed to “dampening.”

Lines 400 relative should be changed to “relatively.”

This manuscript explored the controlling factors for SOC stability and temperature sensitivity of its decomposition in agricultural terrace soils. The result is interesting and has a value for evaluate SOC stability under man-made landform. The manuscript falls into the scope of BG, although the Introduction and Discussion sections need to be improved.

Introduction is generally too long, and should be reorganized. the first paragraph was to show the significance of “SOC stabilization mechanisms and temperature sensitivity in terraced soils”, and then What’s the factors influenced SOC stabilization mechanisms and temperature sensitivity, …. terraced soils affected can vary which factors….. aim of this study?....what’s your hypothesis…and finally add a sentence or two about the research expectations or significance in the end ? Authors excessively cleared the well-known organic dynamic mechanisms, therefore, the relative information should be simplified.

Line 170-174, Delete the sentences “Soil C:N ratio….. of the substrate (Soares &Rousk, 2019)”, the information should not appear in the Material and Method section.

Discussion section is unnecessarily long and need thorough revision. The title of “4.1 Controls on SOC stability: importance of carbon burial and terrace age” and “4.2 Main controls on temperature sensitivity” are basically ok, but in each part, the logical thread of the discussion part is not clear.