This is an editorial for a special issue “Global change effects on terrestrial biogeochemistry at the plant-soil interface” at Biogeosciences. I find the topic is interesting and well written, and there are only some minor places which need to revised before publication.

Line 33 Rephrase this sentence

Line 61 and change to but also

Line 100 so as to further explore…

Line 154 mechanistic and holistic..

This overview comprehensively and systematically summarizes global change effects on terrestrial biogeochemistry at the plant-soil interface based on topics in the special issue, presenting its content in a clear manner. It addresses a highly significant ecological and environmental issue worthy of attention. Based on the content of the overview, I have only a few minor questions and suggestions which need to be further considered.

1. Plant responses to elevated CO₂: It may be crucial to add some perspectives regarding different vegetation types in this section or concluding remarks. Different plant species possess varying physiological characteristics and response mechanisms, which influence their sensitivity and adaptability to climate change. This discrepancy is particularly notable when considering significant vegetation types such as crops and forests. For crops, they are typically subject to direct anthropogenic influences, including planting methods, fertilization, and irrigation. These factors interact with climate change, further impacting their growth and yield. Therefore, in addition to considering the effects of climate change, anthropogenic management factors also need to be taken into account for crops. On the other hand, forests, as a crucial vegetation type, exhibit distinct regional distribution characteristics. Different types of forests respond differently to climate change; for example, temperate forests and tropical rainforests possess different ecosystem structures and functionalities. Hence, targeted research is necessary to understand their response mechanisms to climate change. Therefore, the author may consider delving into a more in-depth discussion and comparison of the responses of different vegetation types to provide a more comprehensive understanding of the impact of climate change on the soil-plant interface.
2. Line 100: The authors are suggested to compile these research topics with more discussions on the response of rhizosphere processes to climate change, which is a highly significant process involving interactions among soil, plants, and microorganisms. For instance, climate change may affect the distribution and availability of water in the soil, thereby influencing the growth of plant roots and rhizosphere processes. Extreme climate events such as droughts and increased precipitation may alter the water content and distribution in the soil, subsequently impacting root growth and rhizosphere processes. Additionally, climate change may also influence the temperature and nutrient cycling in the soil. Temperature fluctuations may affect the activity and metabolic processes of soil microorganisms, thereby influencing the decomposition of organic matter and nutrient cycling in rhizosphere processes. Furthermore, climate change may alter the nutrient content and availability in the soil, thereby affecting the ability of plant roots to absorb and utilize nutrients. Climate change may also impact the biodiversity and functionality of plants and microorganisms in the soil. The microbial communities and functions in rhizosphere processes may be affected by climate change, thereby influencing the efficiency and effectiveness of rhizosphere processes. Moreover, climate change may affect the growth and physiological processes of plants, thereby influencing the production of root exudates by plants and rhizosphere processes in the soil.

Specific comments:

1. Line 14: add “hydrosphere” as this overview mentions “transpiration” in Line 71
2. Line 19: delete one of “this”
3. Line 39: which kinds of “indirect effects”?
4. Line 54-62: This part largely repeated the content in the abstract, which may need revision.
5. Line 76: delete the comma in “Manzoni et al., (2022)”,“Pihlblad et al., (2023)” etc.
6. Line 78: “to fix C”----->”to fix carbon”, also replace “C” “N” with “carbon” “nitrogen” in other places
7. Use the same tense for “highlight”, “suggested”, “emphasizes”, “highlighted” in the summary sentences