{"title":"实验条件和方法变化对甘蔗氧化亚氮（N2O）排放量化的影响：meta分析","authors":"Manuel C. Valencia-Molina, Jorge Chalco-Vera","doi":"10.1007/s40003-024-00796-6","DOIUrl":null,"url":null,"abstract":"<div><p>Quantifying and analyzing nitrous oxide (N<sub>2</sub>O) emissions from sugarcane-cultivated soils is a priority issue due to its potential role in climate change in the coming decades. However, understanding the impact of this crop on global N<sub>2</sub>O emissions is complicated by the variety of experimental conditions and methods used to quantify these emissions. This study aimed to determine the influence of experimental conditions and methodological approaches on quantifying of N<sub>2</sub>O emissions in soils used for sugarcane production. For this purpose, a meta-analysis of quantitative information on this topic, and published-online up to December 2020 was performed. The average daily N<sub>2</sub>O emission rate calculated in this research was higher than similar studies and the differences were attributed to methodological differences with these references. In addition, results showed that variables associated with sampling and gas concentration measurement had no significant effects on daily mean N<sub>2</sub>O emissions. The evaluation period, soil texture, and the management of synthetic N sources and application rates were the main variables affecting N<sub>2</sub>O emissions. Among the important sugarcane-producing countries United States and India had significantly higher daily mean N<sub>2</sub>O emission (4.5 ± 1.4 and 3.08 ± 0.08 mg N<sub>2</sub>O–N m<sup>−2</sup> d<sup>−1</sup>, respectively) than the global average (1.98 ± 0.4 mg N<sub>2</sub>O–N m<sup>−2</sup> d<sup>−1</sup>). High N<sub>2</sub>O emissions were widely documented in coarse or intermediate-texture soils. It is recommended that to reduce the uncertainty associated with the estimation of cumulative N<sub>2</sub>O emissions the monitoring of N<sub>2</sub>O emissions should include multiple complete growing seasons and include high sampling frequency around the main management practices. The strategies to reduce emissions should focus on the exploration of alternative N fertilizers to urea in sub-traditional doses for sugarcane areas with coarser textured soils. This work provides an important reference framework for the design and development of future research focused on the assessment of N<sub>2</sub>O mitigation options for sugarcane.</p></div>","PeriodicalId":7553,"journal":{"name":"Agricultural Research","volume":"14 1","pages":"1 - 14"},"PeriodicalIF":1.4000,"publicationDate":"2024-11-14","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":"0","resultStr":"{\"title\":\"Influence of Variations of Experimental Conditions and Methods on the Quantification of Nitrous Oxide (N2O) Emissions in Sugarcane: a Meta-Analysis\",\"authors\":\"Manuel C. Valencia-Molina, Jorge Chalco-Vera\",\"doi\":\"10.1007/s40003-024-00796-6\",\"DOIUrl\":null,\"url\":null,\"abstract\":\"<div><p>Quantifying and analyzing nitrous oxide (N<sub>2</sub>O) emissions from sugarcane-cultivated soils is a priority issue due to its potential role in climate change in the coming decades. However, understanding the impact of this crop on global N<sub>2</sub>O emissions is complicated by the variety of experimental conditions and methods used to quantify these emissions. This study aimed to determine the influence of experimental conditions and methodological approaches on quantifying of N<sub>2</sub>O emissions in soils used for sugarcane production. For this purpose, a meta-analysis of quantitative information on this topic, and published-online up to December 2020 was performed. The average daily N<sub>2</sub>O emission rate calculated in this research was higher than similar studies and the differences were attributed to methodological differences with these references. In addition, results showed that variables associated with sampling and gas concentration measurement had no significant effects on daily mean N<sub>2</sub>O emissions. The evaluation period, soil texture, and the management of synthetic N sources and application rates were the main variables affecting N<sub>2</sub>O emissions. Among the important sugarcane-producing countries United States and India had significantly higher daily mean N<sub>2</sub>O emission (4.5 ± 1.4 and 3.08 ± 0.08 mg N<sub>2</sub>O–N m<sup>−2</sup> d<sup>−1</sup>, respectively) than the global average (1.98 ± 0.4 mg N<sub>2</sub>O–N m<sup>−2</sup> d<sup>−1</sup>). High N<sub>2</sub>O emissions were widely documented in coarse or intermediate-texture soils. It is recommended that to reduce the uncertainty associated with the estimation of cumulative N<sub>2</sub>O emissions the monitoring of N<sub>2</sub>O emissions should include multiple complete growing seasons and include high sampling frequency around the main management practices. The strategies to reduce emissions should focus on the exploration of alternative N fertilizers to urea in sub-traditional doses for sugarcane areas with coarser textured soils. This work provides an important reference framework for the design and development of future research focused on the assessment of N<sub>2</sub>O mitigation options for sugarcane.</p></div>\",\"PeriodicalId\":7553,\"journal\":{\"name\":\"Agricultural Research\",\"volume\":\"14 1\",\"pages\":\"1 - 14\"},\"PeriodicalIF\":1.4000,\"publicationDate\":\"2024-11-14\",\"publicationTypes\":\"Journal Article\",\"fieldsOfStudy\":null,\"isOpenAccess\":false,\"openAccessPdf\":\"\",\"citationCount\":\"0\",\"resultStr\":null,\"platform\":\"Semanticscholar\",\"paperid\":null,\"PeriodicalName\":\"Agricultural Research\",\"FirstCategoryId\":\"1085\",\"ListUrlMain\":\"https://link.springer.com/article/10.1007/s40003-024-00796-6\",\"RegionNum\":0,\"RegionCategory\":null,\"ArticlePicture\":[],\"TitleCN\":null,\"AbstractTextCN\":null,\"PMCID\":null,\"EPubDate\":\"\",\"PubModel\":\"\",\"JCR\":\"Q3\",\"JCRName\":\"AGRONOMY\",\"Score\":null,\"Total\":0}","platform":"Semanticscholar","paperid":null,"PeriodicalName":"Agricultural Research","FirstCategoryId":"1085","ListUrlMain":"https://link.springer.com/article/10.1007/s40003-024-00796-6","RegionNum":0,"RegionCategory":null,"ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":null,"EPubDate":"","PubModel":"","JCR":"Q3","JCRName":"AGRONOMY","Score":null,"Total":0}
引用次数: 0
摘要
由于甘蔗栽培土壤中氧化亚氮（N2O）在未来几十年对气候变化的潜在影响，对其排放进行量化和分析是一个优先问题。然而，由于各种实验条件和用于量化这些排放的方法，了解这种作物对全球N2O排放的影响变得复杂。本研究旨在确定试验条件和方法方法对甘蔗生产土壤中N2O排放量化的影响。为此，对该主题的定量信息进行了荟萃分析，并于2020年12月在线发布。本研究计算的日均N2O排放率高于同类研究，差异归因于与这些文献的方法差异。此外，结果表明，采样和气体浓度测量相关的变量对日平均N2O排放量没有显著影响。评价期、土壤质地、综合氮源管理和施用量是影响N2O排放的主要变量。在重要的甘蔗生产国中，美国和印度的日均N2O排放量（分别为4.5±1.4和3.08±0.08 mg N2O - n m−2 d−1）显著高于全球平均水平（1.98±0.4 mg N2O - n m−2 d−1）。在粗糙或中等质地土壤中广泛记录了高N2O排放。建议为了减少与N2O累积排放估算相关的不确定性，N2O排放监测应包括多个完整的生长季节，并在主要管理措施周围包括高采样频率。减少排放的策略应侧重于探索在土壤质地较粗糙的甘蔗地区使用亚传统剂量的氮肥来替代尿素。这项工作为未来研究的设计和发展提供了重要的参考框架，重点是评估甘蔗的N2O缓解方案。
Influence of Variations of Experimental Conditions and Methods on the Quantification of Nitrous Oxide (N2O) Emissions in Sugarcane: a Meta-Analysis
Quantifying and analyzing nitrous oxide (N2O) emissions from sugarcane-cultivated soils is a priority issue due to its potential role in climate change in the coming decades. However, understanding the impact of this crop on global N2O emissions is complicated by the variety of experimental conditions and methods used to quantify these emissions. This study aimed to determine the influence of experimental conditions and methodological approaches on quantifying of N2O emissions in soils used for sugarcane production. For this purpose, a meta-analysis of quantitative information on this topic, and published-online up to December 2020 was performed. The average daily N2O emission rate calculated in this research was higher than similar studies and the differences were attributed to methodological differences with these references. In addition, results showed that variables associated with sampling and gas concentration measurement had no significant effects on daily mean N2O emissions. The evaluation period, soil texture, and the management of synthetic N sources and application rates were the main variables affecting N2O emissions. Among the important sugarcane-producing countries United States and India had significantly higher daily mean N2O emission (4.5 ± 1.4 and 3.08 ± 0.08 mg N2O–N m−2 d−1, respectively) than the global average (1.98 ± 0.4 mg N2O–N m−2 d−1). High N2O emissions were widely documented in coarse or intermediate-texture soils. It is recommended that to reduce the uncertainty associated with the estimation of cumulative N2O emissions the monitoring of N2O emissions should include multiple complete growing seasons and include high sampling frequency around the main management practices. The strategies to reduce emissions should focus on the exploration of alternative N fertilizers to urea in sub-traditional doses for sugarcane areas with coarser textured soils. This work provides an important reference framework for the design and development of future research focused on the assessment of N2O mitigation options for sugarcane.
期刊介绍：
The main objective of this initiative is to promote agricultural research and development. The journal will publish high quality original research papers and critical reviews on emerging fields and concepts for providing future directions. The publications will include both applied and basic research covering the following disciplines of agricultural sciences: Genetic resources, genetics and breeding, biotechnology, physiology, biochemistry, management of biotic and abiotic stresses, and nutrition of field crops, horticultural crops, livestock and fishes; agricultural meteorology, environmental sciences, forestry and agro forestry, agronomy, soils and soil management, microbiology, water management, agricultural engineering and technology, agricultural policy, agricultural economics, food nutrition, agricultural statistics, and extension research; impact of climate change and the emerging technologies on agriculture, and the role of agricultural research and innovation for development.
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