Crop-specific ammonia volatilization rates and key influencing factors in the upland of China - A data synthesis

A - Papers appearing in refereed journals

Sha, Z., Ma, X., Liu, R-H., Wang, J., Lv, T., Goulding, K. W. T. and Liu, X. 2023. Crop-specific ammonia volatilization rates and key influencing factors in the upland of China - A data synthesis. Journal of Environmental Management. 336 (June), p. 117676. https://doi.org/10.1016/j.jenvman.2023.117676

AuthorsSha, Z., Ma, X., Liu, R-H., Wang, J., Lv, T., Goulding, K. W. T. and Liu, X.
Abstract

Ammonia (NH3) is an important alkaline reactive nitrogen (Nr) species which is involved in global nitrogen (N) biogeochemical cycling, but which has negative impacts on the environment and human health. In order to better understand and control the NH3 loss potential in soil-upland crop systems in China, an integrated data analysis including 1302 observations from 236 published articles between 1980 and 2021 was conducted. The typical NH3 volatilization rate (AVR) and the main factors influencing AVR in the major Chinese upland crops (maize, wheat, openfield vegetables and greenhouse vegetables and others) were estimated and analyzed. The mean AVR for maize, wheat, openfield vegetables and greenhouse vegetables were 7.8%, 5.3%, 8.4% and 1.8%.
The most important influencing factors were fertilizer placement, meteorological conditions (especially temperature
and rainfall) and soil properties (especially SOM). Subsurface N application produced a significantly
lower AVR compared to surface application. High N recovery efficiency and N agronomic efficiency were generally associated with low AVRs. In conclusion, high N application rates, inefficient application methods and the use of loss-prone N fertilizer types are the main factors responsible for high AVRs in major Chinese croplands

KeywordsSoil-crop systems; Ammonia volatilization loss; Machine learning model; Influencing factors
Year of Publication2023
JournalJournal of Environmental Management
Journal citation336 (June), p. 117676
Digital Object Identifier (DOI)https://doi.org/10.1016/j.jenvman.2023.117676
Web address (URL)https://doi.org/10.1016/j.jenvman.2023.117676
Open accessPublished as green open access
FunderBBSRC Newton funding
Funder project or codeUK - China Virtual Joint Centre for Improved Nitrogen Agronomy (CINAG)
Output statusPublished
Publication dates
Online07 Mar 2023
Publication process dates
Accepted03 Mar 2023
PublisherAcademic Press Ltd- Elsevier Science Ltd
ISSN0301-4797

Permalink - https://repository.rothamsted.ac.uk/item/98vv3/crop-specific-ammonia-volatilization-rates-and-key-influencing-factors-in-the-upland-of-china-a-data-synthesis

Restricted files

Publisher's version

Under embargo indefinitely

Accepted author manuscript

Under embargo until 07 Mar 2024

76 total views
3 total downloads
1 views this month
0 downloads this month