Results 1 to 10 of about 1,677,076 (289)

Enhanced nitrogen deposition over China

Nature, 2013
China is experiencing intense air pollution caused in large part by anthropogenic emissions of reactive nitrogen. These emissions result in the deposition of atmospheric nitrogen (N) in terrestrial and aquatic ecosystems, with implications for human and ecosystem health, greenhouse gas balances and biological diversity.
Liu, X., Zhang, Y., Han, W., Tang, A., Shen, J., Cui, J., Vitousek, P., Erisman, J. W., Goulding, K. W. T., Christie, P., Fangmeier, A., Zhang, F.   +11 more
exaly   +6 more sources

Nitrogen Deposition on Danish Nature [PDF]

Atmosphere, 2018
Eutrophication events are frequent in Inner Danish waters and critical loads are exceeded for much of the Danish sensitive terrestrial ecosystems. The Danish air quality monitoring program combines measurements and model calculations to benefit from the ...
Thomas Ellermann, Jesper Nygaard, Jesper Heile Christensen, Per Løfstrøm, Camilla Geels, Ingeborg Elbæk Nielsen, Maria Bech Poulsen, Christian Monies, Steen Gyldenkærne, Jørgen Brandt, Ole Hertel   +10 more
doaj   +2 more sources

Nitrogen deposition and climate: an integrated synthesis [PDF]

Trends in Ecology & Evolution, 2022
Human activities have more than doubled reactive nitrogen (N) deposited in ecosystems, perturbing the N cycle and considerably impacting plant, animal, and microbial communities. However, biotic responses to N deposition can vary widely depending on factors including local climate and soils, limiting our ability to predict ecosystem responses. Here, we
Elizabeth T. Borer, Carly J. Stevens
openaire   +2 more sources

Effect of Nitrogen Deposition on Soil CO2 Emission During Freezing-Thawing Incubation Period [PDF]

Iranian Journal of Chemistry & Chemical Engineering, 2022
Due to the traditional analysis method on the influence of soil nitrogen deposition on soil CO2 emissions during the freezing and thawing period, the initial impact of nitrogen deposition on soil CO2 emissions during the freezing and thawing incubation ...
Sha Wang, Yude He
doaj   +1 more source

Simulated Nitrogen Deposition Decreases the Ratios of Soil C to P and N to P, Changes Soil Enzyme Activity, and Reduces Soil Microbial Biomass in Paddy Soil in Southern China

Agronomy, 2023
There have been few studies on the impact of nitrogen deposition on paddy field ecosystem; therefore, we evaluated the effects of different N deposition levels (0, 40, and 120 kg N·ha−1) with the conventional nitrogen rate (180 kg N·ha−1) on rice field ...
Yuhao Deng, Meijie Kuang, Zewen Hei, Jiawen Zhong, Ahmed Ibrahim Elsayed Abdo, Hui Wei, Jiaen Zhang, Huimin Xiang   +7 more
doaj   +1 more source

Improvement of stomatal resistance and photosynthesis mechanism of Noah-MP-WDDM (v1.42) in simulation of NO₂ dry deposition velocity in forests [PDF]

Geoscientific Model Development, 2022
Rapid urbanisation and economic development in China have led to a dramatic increase in nitrogen oxide (NO2) emissions, causing serious atmospheric nitrogen pollution and relatively high levels of nitrogen deposition.
M. Chang, J. Cao, Q. Zhang, Q. Zhang, W. Chen, G. Wu, L. Wu, W. Wang, X. Wang   +8 more
doaj   +1 more source

Reduced nitrogen dominated nitrogen deposition in the United States, but its contribution to nitrogen deposition in China decreased [PDF]

Proceedings of the National Academy of Sciences, 2016
Recently, Li et al. (1) report that reduced nitrogen (N) dominated both wet and dry deposition of inorganic N, following long-term N oxides (NO x ) emission controls introduced in 1990. They systematically compare wet deposition of inorganic N, measured by the US National Atmospheric Deposition Program (NADP) between 1990–1992 and 2010–2012, and ...
Xuejun Liu, Wen Xu, Enzai Du, Yuepeng Pan, Keith Goulding   +4 more
openaire   +2 more sources

Response mechanisms of 3 typical plants nitrogen and phosphorus nutrient cycling to nitrogen deposition in temperate meadow grasslands

Frontiers in Plant Science, 2023
The increase of nitrogen (N) deposition and the diversity of its components lead to significant changes in the structure and function of temperate meadow steppe, which could affect plant nutrient uptake, nutrient resorption and litter decomposition, thus
Yang Zhang, Yang Zhang, Yang Zhang, Qing Zhang, Qing Zhang, Qing Zhang, Wenjun Yang, Wenjun Yang, Wenjun Yang, Yan Zhang, Yan Zhang, Yan Zhang, Ning Wang, Ning Wang, Ning Wang, Peixian Fan, Chao You, Linqian Yu, Qun Gao, Hui Wang, Hui Wang, Hui Wang, Peiming Zheng, Peiming Zheng, Peiming Zheng, Renqing Wang, Renqing Wang, Renqing Wang   +27 more
doaj   +1 more source

Nitrogen deposition and ectomycorrhizas [PDF]

New Phytologist, 1998
As a result of increasing anthropogenic nitrogen deposition, N availability in many forest ecosystems, which are normally N‐limited, has been enhanced. We discuss the impacts of this increased N availability on the ectomycorrhizal (ECM) symbiosis which is generally regarded as an adaptation to nutrient limited conditions.
THOMAS WALLENDA, INGRID KOTTKE
openaire   +1 more source

Nitrogen deposition from aviation emissions

Science of The Total Environment, 2023
Excess nitrogen deposition from anthropogenic sources of atmospheric emissions, such as agriculture and transportation, can have negative effects on natural environments. Designing effective conservation efforts requires knowledge of the contribution of individual sectors.
Domingos de Azevedo Quadros, F. (author), van Loo, Marijn (author), Snellen, M. (author), Dedoussi, I.C. (author)   +3 more
openaire   +4 more sources