生态与农村环境学报最新文献

英文中文

菜粕和豆粕混合生产氨基酸水溶肥的发酵工艺优化菜粕和豆粕混合生产氨基酸水溶肥的发酵工艺优化

Q3 Social Sciences

生态与农村环境学报

Pub Date : 2023-02-22 DOI: 10.19741/j.issn.1673-4831.2022.0839

路书山 | 刘浩 | 赵燕洲 | 屠继军 | 曹慧

引用次数: 0

Assessments of ecological quality in Jinjiang district of Chengdu city using the FVC and RSEI models 基于FVC和RSEI模型的成都市锦江区生态质量评价

Q3 Social Sciences

生态与农村环境学报

Pub Date : 2021-04-25 DOI: 10.19741/J.ISSN.1673-4831.2020.0511

Wang Zhi-chao, He Xin-hua

引用次数: 1

Characteristics of carbonaceous aerosols in ambient PM2.5 during the COVID-19 period in Nanjing 新冠肺炎疫情期间南京市PM2.5中碳质气溶胶特征

Q3 Social Sciences

生态与农村环境学报

Pub Date : 2021-01-01 DOI: 10.19741/j.issn.1673-4831.2020.0857

Y. Ji, Q. Y. Zhao, F. Chen, D. Chen

In order to explore the variations of carbon components[including organic carbon (OC) and element carbon (EC)] in PM2.5 at the urban area of Nanjing during the breakout of COVID-19 period, PM2.5, OC and EC mass concentrations were measured by online monitoring from January to February 2020. Compared to the concentrations before the emergency response, the PM2.5 concentration after the emergency response was reduced by 41.2% and EC reduced by 57.9%. These results indicate that the shutdown significantly reduced PM2.5 and EC concentrations, but the OC concentration increased. Before the emergency response, the OC and EC concentrations were low in daytime and high at night and early morning. After the emergency response, the average concentration of EC only had a slight change within a day and maintained at low concentration level, OC showed a curve trend which was higher in the afternoon and lower in morning and evening. The significant decrease of PM2.5 concentration after the emergency response period led to the increasing of light radiation intensity, which promoted the formation of secondary organic carbon (SOC). The SOC concentration increased when the PM2.5 and EC concentrations decreased, and the correlation between OC and EC also decreased significantly. © 2021, China Environmental Science Press. All rights reserved.

为探讨新冠肺炎疫情暴发期间南京市城区PM2.5中碳组分[包括有机碳(OC)和元素碳(EC)]的变化情况，于2020年1 - 2月采用在线监测方法测定了PM2.5、有机碳和元素碳的质量浓度。与应急前相比，应急后PM2.5浓度降低了41.2%，EC降低了57.9%。这些结果表明，关闭显著降低了PM2.5和EC浓度，但OC浓度升高。应急响应前，OC和EC浓度白天较低，夜间和清晨较高。应急响应后，EC的平均浓度在一天内变化不大，维持在较低浓度水平，OC呈下午高、早晚低的曲线趋势。应急响应期后PM2.5浓度显著下降，导致光辐射强度增加，促进了次生有机碳(SOC)的形成。随着PM2.5和EC浓度的降低，SOC浓度升高，OC与EC的相关性也显著降低。©2021，中国环境科学出版社版权所有。

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引用次数: 1

Recent progress in study on technology for pretreating corn stalk to improve biogas production capacity of anaerobic digesters. 玉米秸秆预处理提高厌氧沼气池产气能力技术研究进展。

Q3 Social Sciences

生态与农村环境学报

Pub Date : 2015-09-05 DOI: 10.11934/J.ISSN.1673-4831.2015.05.004

Zhao Chen, Cui Xinyue, Liu Guangqing, Zhang Ruihong, Chen Chang

引用次数: 2

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全部化学•材料生命科学医学物理工程技术环境•农林材料科学地球科学法学管理学化学环境科学与生态学计算机科学教育学经济学农林科学人文科学生物学数学物理与天体物理心理学综合性期刊其他工业工程理学历史学农学文学信息工程

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