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首页> 外文期刊>Atmospheric environment >Effects of nitrogen and phosphorus on the production of carbon dioxide and nitrous oxide in salt-affected soils under different vegetation communities
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Effects of nitrogen and phosphorus on the production of carbon dioxide and nitrous oxide in salt-affected soils under different vegetation communities

机译：氮气和磷对不同植被社区下盐影响土壤中二氧化碳和二氮氧化物生产的影响

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摘要

Nutrient availability greatly regulates ecosystem processes in salt-affected soils. However, few studies have explored the impacts of nitrogen (N), phosphorus (P) and N x P interactions on CO2 and N2O emissions from salt-affected soils in the Yellow River Delta (YRD), which is one of the three biggest deltas in China. An incubation study was conducted to test the effects of N or P addition alone, as well as combined NP application, on CO2 and N2O emissions from the soils taken from four sites: bare land (BL) with no vegetation cover and three adjacent vegetation communities, Tamarix chinensis (TC), Suaeda salsa (SS) and Phragmites auswalis (PA) in the YRD. The results showed that N and its interaction with P showed significant and identical effects on both CO2 and N2O emissions in all soils. Nevertheless, the significant effect of P on CO2 production was found in soils covered with vegetation. N addition tended to augment CO2 and N2O emissions. However, the significant positive correlation between cumulative CO2 emissions and P addition was only found in soils collected from different communities. Compared with soils collected from BL, soils from different vegetation communities emitted more CO2 and more N2O. Moreover, soils of woody communities produced more CO2 than those of herbaceous communities. On the contrary, N2O emissions in soils of herbaceous communities were higher than in woody communities. Therefore, more attention, should be paid to the pulse GHG emissions that result from nutrient addition during the reclamation of saline soils, especially those covered with vegetation.
机译：营养可用性极大地调节盐影响土壤中的生态系统过程。然而，很少有研究探索了氮（N），磷（P）和N X P相互作用对黄河三角洲（YRD）中的盐影响土壤的二氧化碳和N2O排放的影响，这是三大谵妄之一在中国。进行培养研究以测试单独的N或P添加的影响，以及来自来自四个地点的土壤的CO2和N2O排放组合的NP应用：裸陆（BL），没有植被覆盖和三个相邻的植被社区，Tamarix Chinensis（TC），Suaeda Salsa（SS）和芦苇在YRD中的普法利斯（PA）。结果表明，N及其与P的相互作用对所有土壤中的二氧化碳和N2O排放表现出显着且相同的影响。然而，在植被覆盖的土壤中发现了P对CO2生产的显着影响。另外添加到增强二氧化碳和N2O排放。然而，累积二氧化碳排放与P添加的显着正相关性仅在不同社区收集的土壤中发现。与来自BL收集的土壤相比，来自不同植被社区的土壤散发出更多CO2和更多N2O。此外，木质社区的土壤产生了比草本社区更多的二氧化碳。相反，草本社区土壤中的N2O排放量高于木质社区。因此，更加关注，应支付给患锡林养殖过程中营养加入引起的脉冲温室气体排放，尤其是植被覆盖的脉冲温室气体排放。

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  • 来源
    《Atmospheric environment》 |2019年第5期|78-88|共11页
  • 作者

    Zhang Lihua; Shao Hongbo; Wang Bingchen; Zhang Liwen; Qin Xiaochun;

  • 作者单位

    Univ Jinan Sch Biol Sci & Technol Jinan 250022 Shandong Peoples R China|Chinese Acad Sci Yantai Inst Coastal Zone Res YIC Key Lab Coastal Environm Proc & Ecol Remediat YICCAS Shandong Prov Key Lab Coastal Environm Pro Yantai 264003 Peoples R China;

    Jiangsu Acad Agr Sci Inst Agr Resources & Environm Key Lab Agr Environm Lower Reaches Yangtze River Salt Soil Agr Ctr 50 Zhongling Rd Nanjing 210014 Peoples R China|Yancheng Teachers Univ Jiangsu Synthet Innovat Ctr Coastal Bioagr Jiangsu Key Lab Bioresources Saline Soils Yancheng 224002 Peoples R China|Qingdao Univ Sci & Technol Coll Environm & Safety Engn Qingdao 266000 Shandong Peoples R China;

    Chinese Acad Sci Yantai Inst Coastal Zone Res YIC Key Lab Coastal Environm Proc & Ecol Remediat YICCAS Shandong Prov Key Lab Coastal Environm Pro Yantai 264003 Peoples R China;

    Chinese Acad Sci Yantai Inst Coastal Zone Res YIC Key Lab Coastal Environm Proc & Ecol Remediat YICCAS Shandong Prov Key Lab Coastal Environm Pro Yantai 264003 Peoples R China;

    Univ Jinan Sch Biol Sci & Technol Jinan 250022 Shandong Peoples R China;

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  • 正文语种 eng
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  • 关键词

    Greenhouse gas; Carbon dioxide; Nitrous oxide; Salt-affected soil; Yellow river delta;

    机译：温室气体;二氧化碳;氧化亚氮;盐影响土壤;黄河三角洲;

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