Global Nitrous Oxide Emissions From Pasturelands and Rangelands: Magnitude, Spatiotemporal Patterns, and Attribution

The application of manure and mineral nitrogen (N) fertilizer, and livestock excreta deposition are the main drivers of nitrous oxide (N2O) emissions in agricultural systems. However, the magnitude and spatiotemporal variations of N2O emissions due to different management practices (excreta depositi...

Full description

Saved in:
Bibliographic Details
Published in:Global biogeochemical cycles 2019-02, Vol.33 (2), p.200-222
Main Authors: Dangal, Shree R. S., Tian, Hanqin, Xu, Rongting, Chang, Jinfeng, Canadell, Josep G., Ciais, Philippe, Pan, Shufen, Yang, Jia, Zhang, Bowen
Format: Article
Language:English
Subjects:
Agricultural management
Anthropogenic factors
climate change
Climate system
Computer simulation
Deposition
ecosystem modeling
Ecosystem models
Ecosystems
Emissions
excreta deposition
Farming systems
Farmyard manure
Fertilizer application
Fertilizers
Fluxes
Grasslands
Human influences
Livestock
manure/fertilizer application
Manures
Modelling
Nitrogen
Nitrous oxide
Nitrous oxide emissions
Ocean, Atmosphere
Rangelands
Sciences of the Universe
Strategic management
Citations: Items that this one cites
Items that cite this one
Online Access:Get full text
Tags: Add Tag
No Tags, Be the first to tag this record!
Description
Summary:The application of manure and mineral nitrogen (N) fertilizer, and livestock excreta deposition are the main drivers of nitrous oxide (N2O) emissions in agricultural systems. However, the magnitude and spatiotemporal variations of N2O emissions due to different management practices (excreta deposition and manure/fertilizer application) from grassland ecosystems remain unclear. In this study, we used the Dynamic Land Ecosystem Model to simulate the spatiotemporal variation in global N2O emissions and their attribution to different sources from both intensively managed (pasturelands) and extensively managed (rangelands) grasslands during 1961–2014. Over the study period, pasturelands and rangelands experienced a significant increase in N2O emissions from 1.74 Tg N2O‐N in 1961 to 3.11 Tg N2O‐N in 2014 (p 
ISSN:0886-6236
1944-9224
1944-8224
DOI:10.1029/2018GB006091