NWIPB OpenIR
Moderate Grazing Promotes Grassland Nitrous Oxide Emission by Increasing Ammonia-Oxidizing Archaea Abundance on the Tibetan Plateau
Du, Yangong; Shu, Kai; Guo, Xiaowei; Zhu Pengjin
2019
发表期刊CURRENT MICROBIOLOGY
卷号76期号:5
摘要Grasslands are suffering from long-term overgrazing because of the population inflation. Furthermore, nitrous oxide (N2O) is a major greenhouse gas that also depletes stratospheric ozone. However, the emission rate of grassland N2O and underlying mechanisms remained unclear under different grazing intensities. We conducted a field manipulation under four grazing intensities to compare its N2O fluxes and main affected factors. It was indicated that alpine meadow N2O emission rates increased from 39.7 +/- 3.1 to 47.8 +/- 2.3 mu g m(-2) h(-1) (p < 0.05), then decreased to 43.4 +/- 4.1 and 32.9 +/- 1.4 mu g m(-2) h(-1) with grazing intensity increasing from 4 to 8, 12 and 16 sheep ha-1, respectively. Multiple-stepwise regression analysis indicated that the predominant affected soil factors were separately TN and BD, pH and BD, also pH and BD, SOC and BD. Simple linear regression models revealed that ammonia-oxidizing archaea (AOA) contributed much to N2O emission (R-2 = 0.77). Additionally, the R-2 coefficient of linear regression was 0.87 between nosZ genes and N2O emission rates in alpine meadow. Much attention should be paid to protecting alpine meadow from degradation to mitigate N2O emission source on the Tibetan Plateau.
文献类型期刊论文
条目标识符http://210.75.249.4/handle/363003/59805
专题中国科学院西北高原生物研究所
推荐引用方式
GB/T 7714
Du, Yangong,Shu, Kai,Guo, Xiaowei,et al. Moderate Grazing Promotes Grassland Nitrous Oxide Emission by Increasing Ammonia-Oxidizing Archaea Abundance on the Tibetan Plateau[J]. CURRENT MICROBIOLOGY,2019,76(5).
APA Du, Yangong,Shu, Kai,Guo, Xiaowei,&Zhu Pengjin.(2019).Moderate Grazing Promotes Grassland Nitrous Oxide Emission by Increasing Ammonia-Oxidizing Archaea Abundance on the Tibetan Plateau.CURRENT MICROBIOLOGY,76(5).
MLA Du, Yangong,et al."Moderate Grazing Promotes Grassland Nitrous Oxide Emission by Increasing Ammonia-Oxidizing Archaea Abundance on the Tibetan Plateau".CURRENT MICROBIOLOGY 76.5(2019).
条目包含的文件
条目无相关文件。
个性服务
推荐该条目
保存到收藏夹
查看访问统计
导出为Endnote文件
谷歌学术
谷歌学术中相似的文章
[Du, Yangong]的文章
[Shu, Kai]的文章
[Guo, Xiaowei]的文章
百度学术
百度学术中相似的文章
[Du, Yangong]的文章
[Shu, Kai]的文章
[Guo, Xiaowei]的文章
必应学术
必应学术中相似的文章
[Du, Yangong]的文章
[Shu, Kai]的文章
[Guo, Xiaowei]的文章
相关权益政策
暂无数据
收藏/分享
所有评论 (0)
暂无评论
 

除非特别说明,本系统中所有内容都受版权保护,并保留所有权利。