Carbon Emission Efficiency, Technological Progress, and Fishery Scale Expansion: Evidence from Marine Fishery in China
Round 1
Reviewer 1 Report
1） Figue.3、4、5 should be improved； 2） The abstract should reflect the core achievements of the paper；3） The spatial analysis results are suggested to be displayed in the form of maps. It is suggested to deepen the analysis of spatial differences and links.4) Policy recommendations should consider stakeholders and operability.5) The Policy Implications of Carbon efficiency analysis should be strengthened.
Author Response
1.Figue.3、4、5 should be improved；
Reply: Thank you for your reminder. Fig.3、4、5 have been modified into clearer pictures.
2.The abstract should reflect the core achievements of the paper；
Reply: Thank you for your reminder. The abstract has been revised to reflect the core achievements of the paper.
For instance, we wrote "These results expand the research depth of the efficiency impact of technological progress and reveal that technological progress keeps increasing, but the CO2 emission reduction efficiency is decreasing. These indicate that emission reduction requires both technological growth and the technology’s capacity to efficiently reduce CO2 emissions."
3.The spatial analysis results are suggested to be displayed in the form of maps. It is suggested to deepen the analysis of spatial differences and links.
Reply: Thank you for your review. The spatial analysis results have been displayed in Fig.4. For the spatial difference and links, we adopted the suggestion of another reviewer for presenting the results of multivariate analysis of variance in Tab.4
- Policy recommendations should consider stakeholders and operability.
Reply: Thank you for your reminder. The policy recommendations have considered stakeholders and operability with the revision as follows.
"Firstly, incentive-based policies can be developed, such as offering tax breaks or subsidies to companies that incorporate energy efficiency and emission reduction measures. Secondly, technological innovation can improve efficiency, such as developing more efficient fishing gear and boats or adopting advanced aquaculture techniques. Finally, the government can strengthen the monitoring and management of marine fishing to ensure compliance with environmental regulations and prevent overfishing.
In summary, policymakers can balance stakeholders' interests, prioritizing operability and technological innovation, to improve China's marine fishing industry's CO2 emission efficiency and overall factor productivity. Achieving higher efficiency in marine fishing carbon resource utilization and overall factor productivity requires consideration of various factors, including technology, policy, and stakeholder interests."
5 The Policy Implications of Carbon efficiency analysis should be strengthened.
Reply: Thank you for your reminder. The policy implication of carbon efficiency has been strengthened as follows.
"Several suggestions include promoting efficient fishing gear and boats, optimizing fishing techniques and timing, implementing sustainable fisheries policies, and establishing a scientific fishery management mechanism. Ultimately, improving marine fishing carbon resource efficiency and overall factor productivity requires collaboration among policymakers, scientists, industry practitioners, and the public to achieve sustainable development goals while considering technological, policy, and socioeconomic factors."
Author Response File: 
Author Response.pdf
Reviewer 2 Report
The manuscript titled “Carbon Emission Efficiency, Technological Progress, and Fisheries Scale Expansion: Evidence from China's Marine fishing industry” is good research for a sustainable fishery. Some parts should be clear.
1) Double of sentence “International Convention for the Prevention of Pollution from Ships” Line 40-41.
2) Author should describe each Fishing method including Trawling, Seine net, Drift net, Fixed net, and Angling in brief.
3) Author should explain why the author selects the DEA calculation for efficiency analysis. What is the advantage of this method?
4) The meaning of all symbols existing in the equation such as equation 1, should be detailed.
5) Line 248: the meaning of (Note: the Ministry of Agriculture and Rural Affairs) should be explained.
6) All tables and figures in the manuscript should be explained in the text.
7) The publication date or year should be indicated for “Sources from China Fishery Statistics Yearbook”
8) Low quality of the picture (Fig 1 - 3), the letter cannot be read.
9) The letter “P” and italicized P should be clear.
10) Author should explain the criteria for the efficiency level classification (Table 2).
11) The references or evidence are needed to support the result Line 351 – 413. For example, why Angling has the highest carbon efficiency among all fishing methods?
12) In Table 3, the author should indicate the carbon efficiency in the form of the average, maximum, and minimum values. Moreover, the ANOVA test should be used to compare the values.
13) In Fig 4-5, the picture is unclear and difficult to understand. Moreover, it is not indicated in the text. The author should give more detail in the picture and explain in the text.
14) In Table 4, is it possible to change from table to graph for a better understanding and clearing of the tendency?
Author Response
- Double of sentence “International Convention for the Prevention of Pollution from Ships”Line 40-41.
Reply: Thank you for your reminder. This double of sentence in Line 40-41 has been deleted.
- Author should describe each Fishing method including Trawling, Seine net, Drift net, Fixed net, and Angling in brief.
Reply: Thank you for your reminder. The fishing method has been described as follows.
" The fishing industry can be classified into five primary forms, including trawling, Seine net, Fixed net,Drift net,, and angling, each with differing carbon emissions requirements. Trawling, which involves using fuel-burning vessels to drag nets across the sea floor, is highly dependent on hydrocarbons. This type of fishing does not discriminate against catch, thereby resulting in significant ecological damage, especially when the nets are dragged along the seabed. Furthermore, trawling operations can cause irreversible harm to the sea bed. Despite this, the practicality and easy operability of this approach make it a popular choice for fishermen. However, this type of fishing is not conducive to sustainable fisheries management.
The fishing methods used in Seine net are purposeful and rely on the pre-detection of the location of the catch. This ensures a higher fishing efficiency, making it a preferred method. However, this method requires a certain scale and close cooperation among fishing vessels, often belonging to fleet fishing operation. For individual fishermen, the implementation of this method is difficult and relies on voluntary or coordinated organization. The Fixed net and Drift net mainly involves setting the gear in the water so that the fish enter the Fixed net and Drift net , so it is a passive fishing method and not very profitable. As an environmentally friendly fishing method, angling has the benefit of limiting large-scale fishing. Its strength lies in the accurate positioning of the fishing grounds. However, this method is generally only employed in specific types of fishing, such as squid fishing. Thus, this study examines the carbon emission efficiency of the five fishing methods and their unique characteristics."
- Author should explain why the author selects the DEA calculation for efficiency analysis. What is the advantage of this method?
Reply: Thank you for your reminder. The basis selecting DEA calculation is as follows.
"Data Envelopment Analysis (DEA) is an efficiency analysis method that uses multidimensional input and output data to evaluate organizational productivity. It can determine the most efficient organizations by comparing input and output situations of different organizations, thus assisting businesses in adjusting their workflow and improving efficiency. DEA has many advantages, including: first, DEA analysis can be used to identify the most efficient DMUs, helping them better understand their leading competitors and take corresponding actions. Second, DEA can assist DMUs in improving efficiency by helping them compare themselves with other DMUs, clarify their goals and performance, and thus improve their efficiency. Third, DEA can identify the most efficient DMUs, helping to improve the overall efficiency of DMUs. This can assist businesses in allocating resources effectively to the most efficient organizations."
- The meaning of all symbols existing in the equation such as equation 1, should be detailed.
Reply: Thank you for your reminder. The meaning of all symbols existing in the equation has been added as follows.
"Where represents carbon emissions from fishing (ton),for power (kW),is the conversion coefficient of fishing vessel fuel consumption (ton/kW), and is the carbon emission coefficient of diesel, with = 0.5921."
- Line 248: the meaning of (Note: the Ministry of Agriculture and Rural Affairs) should be explained.
Reply: Thank you for your reminder. The meaning in Line 248 is that These above measurement coefficients are from the Ministry of Agriculture and Rural Affairs in China.
- All tables and figures in the manuscript should be explained in the text.
Reply: Thank you for your review. All tables and figures in this manuscript have been explained in the text.
- The publication date or year should be indicated for “Sources from China Fishery Statistics Yearbook”
Reply: Thank you for your review. The publication date or year has been indicated as presented in " China Fishery Statistical Yearbook (2009-2019)".
- Low quality of the picture (Fig 1 - 3), the letter cannot be read.
Reply: Thank you for your review. The letters in Fig.1-3 have been improved.
- The letter “P” and italicized P should be clear.
Reply: Thank you for your review. The letter " P " has been revised to be clear.
- Author should explain the criteria for the efficiency level classification (Table 2).
Reply: Thank you for your review. The criteria for the efficiency level has been explained as follows.
"Data Envelopment Analysis (DEA) efficiency analysis results are usually based on efficiency scores. A common classification method is to divide the sample into several equally spaced intervals according to the efficiency score, aiming to classify the sample into different groups of efficiency levels so that differences in efficiency levels can be compared and analysed. For example, a similar approach has been used in the application of DEA analysis in the financial sector to assess the efficiency of banks and to classify them into different efficiency groups in order to compare and analyse the differences between the different efficiency groups."
- The references or evidence are needed to support the result Line 351 – 413. For example, why Angling has the highest carbon efficiency among all fishing methods?
Reply: Thank you for your review. The sentence of " Angling has the highest carbon efficiency among all fishing methods" is obtained by comparing five primary forms such as trawling, Seine net, Fixed net, Drift net, and angling.
- In Table 3, the author should indicate the carbon efficiency in the form of the average, maximum, and minimum values. Moreover, the ANOVA test should be used to compare the values.
Reply: Thank you for your suggestion. We employed a multivariate analysis of variance to examine the effects of multiple factors, and the results are as follows.
|
|
df |
sum_sq |
mean_sq |
F |
PR(>F) |
|
Year |
4 |
0.284 |
0.071 |
6.926 |
0.000 |
|
Method |
4 |
1.227 |
0.307 |
29.928 |
0.000 |
|
area |
10 |
0.225 |
0.022 |
2.194 |
0.020 |
|
Method:area |
40 |
2.925 |
0.073 |
7.136 |
0.000 |
|
Year:Method |
16 |
0.265 |
0.017 |
1.616 |
0.070 |
|
Year:area |
40 |
0.625 |
0.016 |
1.524 |
0.036 |
|
Residual |
160 |
1.640 |
0.010 |
|
|
Based on the table, the following conclusions can be drawn: The independent variables Method, area, Year, Year: Method, Year:area, and Method:area all have a significant effect on the dependent variable (with P values less than 0.1). Among all the interaction effects, Method:area has the most significant impact, with an F value of 7.136 and a P value of 0.000. The Year:Method and Year:area interaction effects also have a significant impact on the dependent variable (with P values of 0.070 and 0.036, respectively, both less than 0.1). Through a multifactor analysis of variance, it can be seen that the carbon emission efficiency of the fishing industry varies across time, fishing methods, and regions. The following detailed analysis is focused on time, fishing methods, and regions. Fig3 is a boxplot drawn from Tab3, which includes the maximum, minimum, and mean values.
- In Fig 4-5, the picture is unclear and difficult to understand. Moreover, it is not indicated in the text. The author should give more detail in the picture and explain in the text.
Reply: Thank you for your suggestion. The explanations in Fig.4-5 have been added in the text briefly.
- In Table 4, is it possible to change from table to graph for a better understanding and clearing of the tendency?
Reply: Thank you for your suggestion. A visualization of the average of the time of Tab 4 was done to obtain the bar graph Fig 5. fig 5 reveals the differences in efficiency values in three dimensions: type of fishing, region, total factor production factors and their components. The analysis of Fig 5 leads to the following results.
Author Response File: Author Response.pdf
Reviewer 3 Report
This paper uses the slack variables of SBM and Malmquist index to study the carbon emission efficiency of Trawler, Seine net, Drift net, Fixed net, and Angling. However, some descriptions are not clear. Some revisions are necessary in the manuscript.
1. Please explain the basis for parameter setting in the explanation below Eq. 1 and how to ensure its universality.
2. All the pictures in the article are not clear enough, please replace them.
3. There is no corresponding source for most formulas in this article, please supplement them.
4. Please further explain the main innovations of the article.
5. In the paper, authors have focused on expands the research depth of the efficiency impact of technological progress. The impact of efficiency on complex systems needs to be analyzed to indicate advantages of your work, which can refer to：
[a] IEEE Trans. Ind. Inf., vol. 15, no. 14, pp. 2008-2022, 2019.
[b] IEEE Transactions on Instrumentation and Measurement, vol. 70, 2021
[c] “Evolutionary Clustering of Moving Objects,” in Proc. 38th IEEE Int. Conf. Data Eng., pp. 2399-2411, 2022.
[d] IEEE Transactions on Circuits and Systems for Video Technology, vol. 25, no. 1, pp. 167-179, 2015
Author Response
1.Please explain the basis for parameter setting in the explanation below Eq. 1 and how to ensure its universality.
Reply: Thank you for your reminder. The basis for parameter below Eq.1 has been explained.
- All the pictures in the article are not clear enough, please replace them.
Reply: Thank you for your review. All the pictures in the article have been replaced to be clear.
3.There is no corresponding source for most formulas in this article, please supplement them.
Reply: Thank you for your reminder. The corresponding source for most formulas in this article has been added as follows.
"Johnes, J. Efficiency and productivity change in the English higher education sector from 1996/97 to 2004/5. Manch. Sch.2008, 76(6), 653-674. doi:10.1111/j.1467-9957.2008.01087.x."
- Please further explain the main innovations of the article.
Reply: Thank you for your review. To date, even fewer studies have explored the effect of technological progress on considering the rate change in CO2 emission from marine fishing. The main innovation of this article is as follows.
"A comprehensive analysis of the linkage between the allocation efficiency or capacity of technological elements and the carbon emissions from the marine fishery is lacking so far. This study attempts to close this research gap by assessing the issue of CO2 emission from marine fishery through the calculation Malmquist index of deviation correction with three contributions as follows. First, the technological progress is differentiated into pure technical efficiency, scale efficiency, and its expansion rather than only technical index to observe the trend of carbon emissions from marine fishery driven by what efficiencies. Second, most papers measure the efficiency with the classical DEA Model but fail to account for the number of input units, which is likely the more relevant attribute for the integration deviation out of the leakage of input fragmentation. Given that the productive frontier of the missing data unit is repaired by a technical element, a calculation Malmquist index of deviation correction is built to address this estimation issue. Third, our research advances a more comprehensive understanding of the profile of how to reduce the CO2 emission of marine fishing in different technical factors as a critical yet poorly identified path, in which pure technical efficiency is used to inspect the fisherman's allocation ability and the scale efficiency to observe the distance between the actual operation and optimal allocation in marine fishing."
- In the paper, authors have focused on expands the research depth of the efficiency impact of technological progress. The impact of efficiency on complex systems needs to be analyzed to indicate advantages of your work, which can refer to：
[a] IEEE Trans. Ind. Inf., vol. 15, no. 14, pp. 2008-2022, 2019.
[b] IEEE Transactions on Instrumentation and Measurement, vol. 70, 2021
[c] “Evolutionary Clustering of Moving Objects,” in Proc. 38th IEEE Int. Conf. Data Eng., pp. 2399-2411, 2022.
[d] IEEE Transactions on Circuits and Systems for Video Technology, vol. 25, no. 1, pp. 167-179, 2015
Reply: Thank you for your review. The impact of efficiency on complex systems is demonstrated with the spatial analysis "4.2.2".
Author Response File: Author Response.pdf
Reviewer 4 Report
Dear authors
My comments on the manuscript are illustrated as follows:
1-Lines 11 and 12, the sentence “China provides a sample for studying marine fishery emission reduction because of its technical progress on emissions and vast ocean area” is very unintelligible and unclear. It should be rewritten by authors.
2- The steps of research process should be illustrated by a diagram in the manuscript.
3- The main differences of the methodology presented in the manuscript in comparison with other methodologies studied by scholars should be illustrated by authors in the introduction section.
4- In the literature review section, a brief of previous studies published by scholars should be presented as a table.
5- In the methods and data section, the references of data applied in the research should be presented by authors.
6-Line 213, more explanation for using the IPCC carbon emission assessment method should be illustrated in the manuscript.
7-All of the figures in the manuscript are unclear. They should be replaced by high quality figures.
8- The results resented in the manuscript should be compered by previous studies.
9- The advantages of SBM model in comparison with other models should be presented in the manuscript.
Author Response
1-Lines 11 and 12, the sentence “China provides a sample for studying marine fishery emission reduction because of its technical progress on emissions and vast ocean area” is very unintelligible and unclear. It should be rewritten by authors.
Reply: Thank you for your reminder. The sentence in Line 11-12 has been rewritten as follows.
"China's technical progress on emissions and vast ocean area make it suitable for studying CO2 emission reduction in a marine fishery."
2- The steps of research process should be illustrated by a diagram in the manuscript.
Reply: Thank you for your review. The step of research process has been illustrated via the Eq.(1)-(14) combined with Fig.1 and Fig.2, as the diagram is hard to presenting the cross connection of symbols.
3- The main differences of the methodology presented in the manuscript in comparison with other methodologies studied by scholars should be illustrated by authors in the introduction section.
Reply: Thank you for your suggestion. The main differences of the methodology are to improve the measurement deviation by allocating the input unit. This study mostly illustrates the CO2 emission trend of marine fishing during ten periods and analyzes this allocation of carbon resource based on the improved Malmquist index.
4- In the literature review section, a brief of previous studies published by scholars should be presented as a table.
Reply: Thank you for your reminder. The brief of previous studies in the literature review has been illustrated through the adoption of paragraphs.
E.g.
In the first category, technological progress reduces CO2 emissions and improves user efficiency.
In the second group, technological progress contributes to CO2 emissions.
In the third group, the ultimate impact of technological progress on CO2 emissions is unclear due to complex social mechanisms, with some scholars arguing the existence of an inverted U-shaped relationship between technological progress and emission reduction.
5- In the methods and data section, the references of data applied in the research should be presented by authors.
Reply: Thank you for your review. The references have been presented by authors, i.e. Line 292-295.
6-Line 213, more explanation for using the IPCC carbon emission assessment method should be illustrated in the manuscript.
Reply: Thank you for your suggestion. The IPCC method is a huge system measurement system. This article only uses the fishing boat measurement scheme that most scholars often use and adds the citations.
7-All of the figures in the manuscript are unclear. They should be replaced by high quality figures.
Reply: Thank you for your review. All of the figures in the manuscript have been replaced by high quality figures.
8- The results resented in the manuscript should be compered by previous studies.
Reply: Thank you for your reminder. The results resented in the manuscript have been compered by previous studies.
E.g.:
"The impact of scale expansion and technological progress on low-carbon fisheries is divided into several main points. Previous studies analyzed the positive contribution of technological progress to the CO2 emission reduction effect in their studies. However, these studies do not distinguish the relationship between technological progress and technical efficiency. This paper thus used the Malmquist index to analyze the role of technological progress and technical efficiency in CO2 emission reduction. First, TFP experienced a significant decline during 2014-2015, mainly due to the increase in CO2 emissions by the collapse of international oil prices. Fixed net and Angling have high total factor productivity. Although the regional distribution of their efficiency is not balanced, Fixed netting and Angling promote the development of low-carbon fisheries. Second, following the composition of the TFP, capture fisheries must also maintain their technical and technological progress."
9- The advantages of SBM model in comparison with other models should be presented in the manuscript.
Reply: Thank you for your reminder. This advantage has been presented as follows (Line 281-291).
"Data Envelopment Analysis (DEA) is an efficiency analysis method that uses multidimensional input and output data to evaluate organizational productivity. It can determine the most efficient organizations by comparing input and output situations of different organizations, thus assisting businesses in adjusting their workflow and improving efficiency. DEA has many advantages, including: first, DEA analysis can be used to identify the most efficient DMUs, helping them better understand their leading competitors and take corresponding actions. Second, DEA can assist DMUs in improving efficiency by helping them compare themselves with other DMUs, clarify their goals and performance, and thus improve their efficiency. Third, DEA can identify the most efficient DMUs, helping to improve the overall efficiency of DMUs. This can assist businesses in allocating resources effectively to the most efficient organizations."
Author Response File: Author Response.pdf
Reviewer 5 Report
The work submitted for review is completely unsuitable for publication. It contains a lot of errors that are unacceptable. I list just a few below. I do not list all of them, because the authors of the work did not take the article seriously, so I will not make it easier for them to improve the article.
1) In the text of the work, capital letters are used many times for words in the middle of the sentence, which is not needed at all.
2) 0. Introduction - Why do authors start at 0?
3) CO2 emissions - please use subscripts and superscripts for the names of chemical compounds in the text of the work
4) Please check the rules for writing values and units (space or no space) - there are errors in the work.
5) Line 40: the International Convention for the Prevention of Pollution from Ships (International Convention for the Prevention of Pollution from Ships) - what is this sentence about?
6) The method of citing literature is inconsistent with the requirements of the journal and there are other errors.
7) What's more, the text of the work lacks references in places where they necessarily should be. without this, the work can be treated as plagiarism.
Author Response
1) In the text of the work, capital letters are used many times for words in the middle of the sentence, which is not needed at all.
Reply: Thank you for your reminder. This manuscript has been sent to be proofread by the professional embroidery organization. The capital letters have been revised apart from the special noun such as Malmquist index, Seine net, Fixed net, and Drift net.
2) 0. Introduction - Why do authors start at 0?
Reply: Thank you for your suggestion. This article is started at 1.
3) CO2 emissions - please use subscripts and superscripts for the names of chemical compounds in the text of the work
Reply: Thank you for your reminder. These names have been revised.
4) Please check the rules for writing values and units (space or no space) - there are errors in the work.
Reply: Thank you for your review. These errors have been revised.
5) Line 40: the International Convention for the Prevention of Pollution from Ships (International Convention for the Prevention of Pollution from Ships) - what is this sentence about?
Reply: Thank you for your suggestion. This sentence in Line 40 has been revised, i.e., International Maritime Organization's Marine Environment Protection Committee.
6) The method of citing literature is inconsistent with the requirements of the journal and there are other errors.
Reply: Thank you for your reminder. These errors have been revised.
7) What's more, the text of the work lacks references in places where they necessarily should be. without this, the work can be treated as plagiarism.
Reply: Thank you for your review. The references in places needing cited discussions have been added to avoid this work from being treated as plagiarism.
Author Response File: Author Response.pdf
Round 2
Reviewer 2 Report
CO2 should be change to CO2 for all points in the manuscript.
Author Response
Comment:
CO2 should be change to CO2 for all points in the manuscript.
Reply:
Thank you very much for the reviewer's comments. CO2 in the manuscript has been modified to CO2. Thanks for your approval, I made some changes to make the article better.
Author Response File: 
Author Response.docx
Reviewer 3 Report
The authors have addressed my comments.
I think the article is ready for being accepted.
Author Response
Comment:
The authors have addressed my comments. I think the article is ready for being accepted.
Reply:
Thank you very much for the reviewer's comments. This manuscript has been sent to be proofread by the professional native speakers. I also made some changes to make the article better.
Author Response File: Author Response.docx
Reviewer 4 Report
Dear authors
The manuscript has been carefully corrected.
Author Response
Comment:
The manuscript has been carefully corrected.
Reply:
Thank you very much for the reviewer's comments. Thanks for your approval. Additionally, I made some changes to make the article better.
Author Response File: Author Response.docx
Reviewer 5 Report
General Comments
English very difficult to understand/incomprehensible
The manuscript presents many language flaws such as unnecessary repetition of words and occasional mistakes. The text and grammar do not meet the criteria of a research paper. The entire manuscript must be re-written, preferably by a native speaker, taking into account the scientific nature of the text. Therefore, the text requires a thorough revision before any publication.
Editing the text of the work leaves much to be desired. The text has different formatting, the authors do not use a space separating the abbreviation of the table, drawing and number; the authors do not follow the rules to separate or not the numerical value and the unit (e.g. degrees, cm, m) and many others. This needs to be significantly improved in the text of the work.
Detailed Comments
1) My earlier note: 3) CO2 emissions - please use subscripts and superscripts for the names of chemical compounds in the text of the work
Reply: Thank you for your reminder. These names have been revised.
Still not corrected in the text of the work.
2) In the text of the work, no rules regarding the notation of values and units as well as citations (space or no space) were applied: e.g. instead[2]. >>instead of [2].; 12m in length >> 12m in length; es emissions[5][6] >> es emissions [5,6]
3) RMB - no explanation of the abbreviation in the text of the work
4) the beginning of the century[], stemming from rising oil prices and the rising power and 78 line - please correct
5) Inappropriate way of quoting literature in the text of the work; to correct the entire article, e.g. [16][17][18][19], >>> [16-19],
6) 3.1Data collection - correct
7) Tab.1 - wrong way to specify the data source
8) Please add list of abbreviations and other shortcuts
9) 5.2 Policy Implications - why such a title and not Conclusions?
10) Tragedy of the Commons regarding high CO2 emissions. 649 ????
11) Fig.5 Spatial distribution - please improve the quality of the graphics because it is very bad
Author Response
General Comments
English very difficult to understand/incomprehensible
The manuscript presents many language flaws such as unnecessary repetition of words and occasional mistakes. The text and grammar do not meet the criteria of a research paper. The entire manuscript must be re-written, preferably by a native speaker, taking into account the scientific nature of the text. Therefore, the text requires a thorough revision before any publication.
Editing the text of the work leaves much to be desired. The text has different formatting, the authors do not use a space separating the abbreviation of the table, drawing and number; the authors do not follow the rules to separate or not the numerical value and the unit (e.g. degrees, cm, m) and many others. This needs to be significantly improved in the text of the work.
Reply:
Thank you for your reminder. This manuscript has been sent to be proofread by the professional native speakers. The text and grammar in this article have been revised to meet the criteria of the standard research. Also, the format of the text including the unit has been unitized especially the table and figure.
Detailed Comments
1) My earlier note: 3) CO2 emissions - please use subscripts and superscripts for the names of chemical compounds in the text of the work
Reply: Thank you for your reminder. These names have been revised.
Still not corrected in the text of the work.
Reply:
Thanks very much for the reviewer's further advice. The author replaced CO2 with CO2.
2) In the text of the work, no rules regarding the notation of values and units as well as citations (space or no space) were applied: e.g. instead[2]. >>instead of [2].; 12m in length >> 12m in length; es emissions[5][6] >> es emissions [5,6]
Reply:
In this paper, "instead" has been deleted, "m" has been modified to "meter" s and "hp" to "horsepower", and the citation format has been modified.->40,41,63
3) RMB - no explanation of the abbreviation in the text of the work
Reply:
Replace RMB with CNY and explain that it is Chinese currency.->76
4) the beginning of the century[], stemming from rising oil prices and the rising power and 78 line - please correct
Reply:
Thanks for the reviewer's comments, which have been modified.->86
5) Inappropriate way of quoting literature in the text of the work; to correct the entire article, e.g. [16][17][18][19], >>> [16-19],
Reply:
The reference format has been completely revised.
6) 3.1Data collection - correct
Reply:
Thanks for the reviewer's comments.
7) Tab.1 - wrong way to specify the data source
Reply:
The source of the data is explained in the article. The incorrect footnote in the table was removed.->248,297
8) Please add list of abbreviations and other shortcuts
Reply:
Where the abbreviation first appears in the text is explained in parentheses.
9) 5.2 Policy Implications - why such a title and not Conclusions?
Reply:
Thanks for the reviewer's comments, the title here is changed to suggestion. Since the conclusion has been mentioned above, it is changed to suggestion.->688
10) Tragedy of the Commons regarding high CO2 emissions. 649 ????
Reply:
What this means is that there is an externality to the emission of carbon dioxide, which ultimately results in a public tragedy under a public ownership.
11) Fig.5 Spatial distribution - please improve the quality of the graphics because it is very bad
Reply:
Thank you very much for the reviewer's comments.
Has been replaced with 1200DPI picture, this presentation mode can reflect the four dimensions of the plane display.->642
Author Response File: Author Response.pdf
Round 3
Reviewer 5 Report
The Authors of the revised version of the manuscript took into account my comments. The modifications introduced in the article have been properly and reliably justified by the authors.
