巴西的甘蔗收割系统:对土壤碳储量和乙醇投资回收期的影响

IF 4 2区 农林科学 Q2 SOIL SCIENCE
Stoécio Malta Ferreira Maia, Sávio Tavares Ferreira Borges, Aldair de Souza Medeiros
{"title":"巴西的甘蔗收割系统:对土壤碳储量和乙醇投资回收期的影响","authors":"Stoécio Malta Ferreira Maia,&nbsp;Sávio Tavares Ferreira Borges,&nbsp;Aldair de Souza Medeiros","doi":"10.1111/ejss.13580","DOIUrl":null,"url":null,"abstract":"<p>Replacing the burnt sugarcane harvesting system with unburnt sugarcane is important for the sustainability of the sugarcane sector in Brazil. Thus, quantifying the impact of the change in the sugarcane harvesting system on soil organic carbon (SOC) stock in Brazil is necessary, as it will allow the refinement of data on SOC, which is essential for the preparation of the national inventory of emissions and removal of greenhouse gases (GHGs), in addition to contributing to national public policies. We used data from both soil sampling and literature review in this study, resulting in 210 pairs of comparisons: 84 for the conversion from burnt sugarcane to unburnt sugarcane; 95 for the conversion from native vegetation to unburnt sugarcane; and 31 for the conversion from native vegetation to burnt sugarcane (NV–burnt), which we analysed using a mixed linear model. In Brazil and the South-Centre region, burnt–unburnt conversion results in a progressive increase in SOC stocks over time, in surface and subsurface layers. Over 20 years, the NV–burnt conversion showed SOC losses between 15% and 32%, and the NV–unburnt conversion showed losses between 27% and 35%. SOC change rates showed gains of 0.32 and 0.59 Mg C ha<sup>−1</sup> year<sup>−1</sup> for burnt–unburnt, and losses ranging from 0.82 to 1.06 Mg C ha<sup>−1</sup> year<sup>−1</sup> for conversions from native vegetation. The time required to offset the negative carbon balance of the NV–unburnt conversion is 6.4 and 8.2 years, being shorter than the payback time of the NV–burnt conversion, which is 9.9 and 9.2 years, in the 0–30 and 0–50 cm layers, respectively.</p>","PeriodicalId":12043,"journal":{"name":"European Journal of Soil Science","volume":null,"pages":null},"PeriodicalIF":4.0000,"publicationDate":"2024-10-08","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":"0","resultStr":"{\"title\":\"Sugarcane harvesting systems in Brazil: Effects on soil carbon stocks and ethanol payback time\",\"authors\":\"Stoécio Malta Ferreira Maia,&nbsp;Sávio Tavares Ferreira Borges,&nbsp;Aldair de Souza Medeiros\",\"doi\":\"10.1111/ejss.13580\",\"DOIUrl\":null,\"url\":null,\"abstract\":\"<p>Replacing the burnt sugarcane harvesting system with unburnt sugarcane is important for the sustainability of the sugarcane sector in Brazil. Thus, quantifying the impact of the change in the sugarcane harvesting system on soil organic carbon (SOC) stock in Brazil is necessary, as it will allow the refinement of data on SOC, which is essential for the preparation of the national inventory of emissions and removal of greenhouse gases (GHGs), in addition to contributing to national public policies. We used data from both soil sampling and literature review in this study, resulting in 210 pairs of comparisons: 84 for the conversion from burnt sugarcane to unburnt sugarcane; 95 for the conversion from native vegetation to unburnt sugarcane; and 31 for the conversion from native vegetation to burnt sugarcane (NV–burnt), which we analysed using a mixed linear model. In Brazil and the South-Centre region, burnt–unburnt conversion results in a progressive increase in SOC stocks over time, in surface and subsurface layers. Over 20 years, the NV–burnt conversion showed SOC losses between 15% and 32%, and the NV–unburnt conversion showed losses between 27% and 35%. SOC change rates showed gains of 0.32 and 0.59 Mg C ha<sup>−1</sup> year<sup>−1</sup> for burnt–unburnt, and losses ranging from 0.82 to 1.06 Mg C ha<sup>−1</sup> year<sup>−1</sup> for conversions from native vegetation. The time required to offset the negative carbon balance of the NV–unburnt conversion is 6.4 and 8.2 years, being shorter than the payback time of the NV–burnt conversion, which is 9.9 and 9.2 years, in the 0–30 and 0–50 cm layers, respectively.</p>\",\"PeriodicalId\":12043,\"journal\":{\"name\":\"European Journal of Soil Science\",\"volume\":null,\"pages\":null},\"PeriodicalIF\":4.0000,\"publicationDate\":\"2024-10-08\",\"publicationTypes\":\"Journal Article\",\"fieldsOfStudy\":null,\"isOpenAccess\":false,\"openAccessPdf\":\"\",\"citationCount\":\"0\",\"resultStr\":null,\"platform\":\"Semanticscholar\",\"paperid\":null,\"PeriodicalName\":\"European Journal of Soil Science\",\"FirstCategoryId\":\"97\",\"ListUrlMain\":\"https://onlinelibrary.wiley.com/doi/10.1111/ejss.13580\",\"RegionNum\":2,\"RegionCategory\":\"农林科学\",\"ArticlePicture\":[],\"TitleCN\":null,\"AbstractTextCN\":null,\"PMCID\":null,\"EPubDate\":\"\",\"PubModel\":\"\",\"JCR\":\"Q2\",\"JCRName\":\"SOIL SCIENCE\",\"Score\":null,\"Total\":0}","platform":"Semanticscholar","paperid":null,"PeriodicalName":"European Journal of Soil Science","FirstCategoryId":"97","ListUrlMain":"https://onlinelibrary.wiley.com/doi/10.1111/ejss.13580","RegionNum":2,"RegionCategory":"农林科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":null,"EPubDate":"","PubModel":"","JCR":"Q2","JCRName":"SOIL SCIENCE","Score":null,"Total":0}
引用次数: 0

摘要

用非燃烧甘蔗取代燃烧甘蔗收割系统对于巴西甘蔗行业的可持续发展非常重要。因此,有必要量化甘蔗收割系统的变化对巴西土壤有机碳(SOC)存量的影响,因为这将有助于完善 SOC 数据,而 SOC 数据对于编制国家温室气体(GHG)排放和清除清单至关重要,此外还有助于制定国家公共政策。在这项研究中,我们使用了土壤取样和文献综述的数据,共得出 210 对比较结果:我们使用混合线性模型对这些数据进行了分析,其中 84 对比较了从烧毁甘蔗到未烧毁甘蔗的转化情况;95 对比较了从本地植被到未烧毁甘蔗的转化情况;31 对比较了从本地植被到烧毁甘蔗(NV-烧毁)的转化情况。在巴西和中南部地区,焚烧-未焚烧转换导致表层和地下 SOC 储量随时间逐渐增加。在 20 年的时间里,NV-焚烧转化的 SOC 损失率在 15%到 32%之间,NV-未焚烧转化的 SOC 损失率在 27%到 35%之间。烧毁-未烧毁转化的 SOC 变化率为每年每公顷 0.32 和 0.59 兆克碳,而从原生植被转化的 SOC 变化率为每年每公顷 0.82 至 1.06 兆克碳。在 0-30 厘米层和 0-50 厘米层,抵消 NV-unburnt 转换的负碳平衡所需的时间分别为 6.4 年和 8.2 年,短于 NV-burnt 转换的投资回收期(分别为 9.9 年和 9.2 年)。
本文章由计算机程序翻译,如有差异,请以英文原文为准。
Sugarcane harvesting systems in Brazil: Effects on soil carbon stocks and ethanol payback time

Replacing the burnt sugarcane harvesting system with unburnt sugarcane is important for the sustainability of the sugarcane sector in Brazil. Thus, quantifying the impact of the change in the sugarcane harvesting system on soil organic carbon (SOC) stock in Brazil is necessary, as it will allow the refinement of data on SOC, which is essential for the preparation of the national inventory of emissions and removal of greenhouse gases (GHGs), in addition to contributing to national public policies. We used data from both soil sampling and literature review in this study, resulting in 210 pairs of comparisons: 84 for the conversion from burnt sugarcane to unburnt sugarcane; 95 for the conversion from native vegetation to unburnt sugarcane; and 31 for the conversion from native vegetation to burnt sugarcane (NV–burnt), which we analysed using a mixed linear model. In Brazil and the South-Centre region, burnt–unburnt conversion results in a progressive increase in SOC stocks over time, in surface and subsurface layers. Over 20 years, the NV–burnt conversion showed SOC losses between 15% and 32%, and the NV–unburnt conversion showed losses between 27% and 35%. SOC change rates showed gains of 0.32 and 0.59 Mg C ha−1 year−1 for burnt–unburnt, and losses ranging from 0.82 to 1.06 Mg C ha−1 year−1 for conversions from native vegetation. The time required to offset the negative carbon balance of the NV–unburnt conversion is 6.4 and 8.2 years, being shorter than the payback time of the NV–burnt conversion, which is 9.9 and 9.2 years, in the 0–30 and 0–50 cm layers, respectively.

求助全文
通过发布文献求助,成功后即可免费获取论文全文。 去求助
来源期刊
European Journal of Soil Science
European Journal of Soil Science 农林科学-土壤科学
CiteScore
8.20
自引率
4.80%
发文量
117
审稿时长
5 months
期刊介绍: The EJSS is an international journal that publishes outstanding papers in soil science that advance the theoretical and mechanistic understanding of physical, chemical and biological processes and their interactions in soils acting from molecular to continental scales in natural and managed environments.
×
引用
GB/T 7714-2015
复制
MLA
复制
APA
复制
导出至
BibTeX EndNote RefMan NoteFirst NoteExpress
×
提示
您的信息不完整,为了账户安全,请先补充。
现在去补充
×
提示
您因"违规操作"
具体请查看互助需知
我知道了
×
提示
确定
请完成安全验证×
copy
已复制链接
快去分享给好友吧!
我知道了
右上角分享
点击右上角分享
0
联系我们:info@booksci.cn Book学术提供免费学术资源搜索服务,方便国内外学者检索中英文文献。致力于提供最便捷和优质的服务体验。 Copyright © 2023 布克学术 All rights reserved.
京ICP备2023020795号-1
ghs 京公网安备 11010802042870号
Book学术文献互助
Book学术文献互助群
群 号:481959085
Book学术官方微信