In:
Earth System Science Data, Copernicus GmbH, Vol. 14, No. 10 ( 2022-10-18), p. 4551-4568
Abstract:
Abstract. Excessive anthropogenic nitrogen (N) inputs to the biosphere have disrupted
the global nitrogen cycle. To better quantify the spatial and temporal
patterns of anthropogenic N inputs, assess their impacts on the
biogeochemical cycles of the planet and the living organisms, and improve
nitrogen use efficiency (NUE) for sustainable development, we have developed
a comprehensive and synthetic dataset for reconstructing the History of
anthropogenic Nitrogen inputs (HaNi) to the terrestrial biosphere. The HaNi dataset
takes advantage of different data sources in a spatiotemporally consistent
way to generate a set of high-resolution gridded N input products from the
preindustrial period to the present (1860–2019). The HaNi dataset includes annual rates
of synthetic N fertilizer, manure application/deposition, and atmospheric N
deposition on cropland, pasture, and rangeland at a spatial resolution of
5 arcmin × 5 arcmin. Specifically, the N inputs are categorized, according to the N
forms and land uses, into 10 types: (1) NH4+-N fertilizer applied to cropland,
(2) NO3--N fertilizer applied to cropland, (3) NH4+-N fertilizer applied to pasture,
(4) NO3--N fertilizer applied to pasture, (5) manure N application on
cropland, (6) manure N application on pasture, (7) manure N deposition on
pasture, (8) manure N deposition on rangeland, (9) NHx-N deposition, and
(10) NOy-N deposition. The total anthropogenic N (TN) inputs to global
terrestrial ecosystems increased from 29.05 Tg N yr−1 in the 1860s to
267.23 Tg N yr−1 in the 2010s, with the dominant N source changing from
atmospheric N deposition (before the 1900s) to manure N (in the 1910s–2000s)
and then to synthetic fertilizer in the 2010s. The proportion of synthetic
NH4+-N in fertilizer input increased from 64 %
in the 1960s to 90 % in the 2010s, while synthetic NO3--N fertilizer
decreased from 36 % in the 1960s to 10 % in the 2010s. Hotspots of TN
inputs shifted from Europe and North America to East and South Asia during
the 1960s–2010s. Such spatial and temporal dynamics captured by the HaNi
dataset are expected to facilitate a comprehensive assessment of the coupled
human–Earth system and address a variety of social welfare issues, such as the
climate–biosphere feedback, air pollution, water quality, and biodiversity. The
data are available at https://doi.org/10.1594/PANGAEA.942069
(Tian et al., 2022).
Type of Medium:
Online Resource
ISSN:
1866-3516
DOI:
10.5194/essd-14-4551-2022
DOI:
10.5194/essd-14-4551-2022-supplement
Language:
English
Publisher:
Copernicus GmbH
Publication Date:
2022
detail.hit.zdb_id:
2475469-9
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