Results 31 to 40 of about 1,677,076 (289)

Enhanced atmospheric nitrogen deposition triggered little change in soil microbial diversity and structure in a desert ecosystem

Global Ecology and Conservation, 2021
Enhanced atmospheric nitrogen deposition can greatly influence the soil nitrogen content and soil microorganisms in terrestrial ecosystems. However, there is a lack of knowledge about the response of soil microbes to changes in soil nitrogen ...
Minghui Sha, Jing Xu, Zicun Zheng, Keyu Fa   +3 more
doaj   +1 more source

The influence of model grid resolution on estimation of national scale nitrogen deposition and exceedance of critical loads [PDF]

Biogeosciences, 2012
The Fine Resolution Atmospheric Multi-pollutant Exchange model (FRAME) was applied to model the spatial distribution of reactive nitrogen deposition and air concentration over the United Kingdom at a 1 km spatial resolution.
A. J. Dore, M. Kryza, J. R. Hall, S. Hallsworth, V. J. D. Keller, M. Vieno, M. A. Sutton   +6 more
doaj   +1 more source

Sinks for Inorganic Nitrogen Deposition in Forest Ecosystems with Low and High Nitrogen Deposition in China

PLoS ONE, 2014
We added the stable isotope (15)N in the form of ((15)NH4)2SO4 and K(15)NO3 to forest ecosystems in eastern China under two different N deposition levels to study the fate of the different forms of deposited N. Prior to the addition of the (15)N tracers, the natural (15)N abundance ranging from -3.4‰ to +10.9‰ in the forest under heavy N deposition at ...
Wenping Sheng, Guirui Yu, Huajun Fang, Chunming Jiang, Junhua Yan, Mei Zhou   +5 more
openaire   +4 more sources

Wet and Dry Atmospheric Depositions of Inorganic Nitrogen during Plant Growing Season in the Coastal Zone of Yellow River Delta

The Scientific World Journal, 2014
The ecological problems caused by dry and wet deposition of atmospheric nitrogen have been widespread concern in the world. In this study, wet and dry atmospheric depositions were monitored in plant growing season in the coastal zone of the Yellow River ...
Junbao Yu, Kai Ning, Yunzhao Li, Siyao Du, Guangxuan Han, Qinghui Xing, Huifeng Wu, Guangmei Wang, Yongjun Gao   +8 more
doaj   +1 more source

Chemical footprints of anthropogenic nitrogen deposition on recent soil C : N ratios in Europe [PDF]

Biogeosciences, 2015
Long-term human interactions with the natural landscape have produced a plethora of trends and patterns of environmental disturbances across time and space.
C. Mulder, J.-P. Hettelingh, L. Montanarella, M. R. Pasimeni, M. Posch, W. Voigt, G. Zurlini   +6 more
doaj   +1 more source

Mechanism of Reactive Nitrogen Deposition on the Nitrogen Leaching

Journal of Geography (Chigaku Zasshi), 2012
Nitrogen compound deposition as a result of human activities on the terrestrial surface has increased sharply during the last one hundred years, causing ecological problems. One problem is nitrogen saturation in forest ecosystems, which results in the forest ecosystem receiving more nitrogen than required. In recent years, nitrogen oxide emissions have
TABAYASHI, Yu, YAMAMURO, Masumi
openaire   +2 more sources

Past, Present, and Future Atmospheric Nitrogen Deposition [PDF]

Journal of the Atmospheric Sciences, 2016
Abstract Reactive nitrogen emissions into the atmosphere are increasing as a result of human activities, affecting nitrogen deposition to the surface and impacting the productivity of terrestrial and marine ecosystems. An atmospheric chemistry–transport model [Tracer Model 4 of the Environmental Chemical Processes Laboratory (TM4-ECPL ...
Kanakidou, Maria, Myriokefalitakis, Stelios, Daskalakis, Nikos, Fanourgakis, G., Nenes, Athanasios, Baker, Alexander, Tsigaridis, Kostas, Mihalopoulos, Nikos   +7 more
openaire   +3 more sources

Reconstructing historical trends of polycyclic aromatic hydrocarbon deposition in a remote area of Spain using herbarium moss material [PDF]

, 2010
Herbarium mosses from 1879-1881, 1973-1975 and 2006-2007 were used to investigate the historical changes of atmospheric deposition of polycyclic aromatic hydrocarbons (PAHs) at a remote site located in Northern Spain.
Gonzalez, Laura, Ederra, Alicia, Foan, Louise, Sablayrolles, Caroline, Sablayrolles, Caroline,, Simon, Valérie, Ederra, A., Santamaria, J.M., Lasheras, Esther, Santamaria, Jesus Miguel, Elustondo, David, Gonzalez, L   +11 more
core   +1 more source

Is the Invasive Plant Amaranthus spinosus L. More Competitive than the Native Plant A. tricolor L. When Exposed to Acid Deposition with Different Sulfur–Nitrogen Ratios?

Atmosphere, 2023
The functional differences between invasive plants and coexisting native plants can affect the invasion process of the former because invasive plants and coexisting native plants are exposed to similar or even identical environmental pressures.
Yue Li, Chuang Li, Shanshan Zhong, Zhelun Xu, Jun Liu, Zhongyi Xu, Mawei Zhu, Congyan Wang, Daolin Du   +8 more
doaj   +1 more source

Nitrogen and phosphorus stoichiometry of Schima superba under nitrogen deposition [PDF]

Scientific Reports, 2018
AbstractIn this study, leaf nitrogen (N) and phosphorus (P) stoichiometry were used as indicators of nitrogen saturation and to assess ecosystem nutrient limitations. Schima superba, a representative and widely distributed dominant evergreen broadleaf tree species of the subtropical forests in southern China, was used for this purpose.
Zhang, Rui, Pan, Hongwei, He, Biting, Chen, Huanwei, Zhou, Zhichun   +4 more
openaire   +2 more sources