Zhou, Feng Shang, Ziyin Ciais, Philippe Tao, Shu Piao, Shilong Raymond, Peter He, Canfei Li, Bengang Wang, Rong Wang, Xuhui Peng, Shushi Zeng, Zhenzhong Chen, Han Ying, Na Hou, Xikang Xu, Peng A New High-Resolution N<sub>2</sub>O Emission Inventory for China in 2008 The amount and geographic distribution of N<sub>2</sub>O emissions over China remain largely uncertain. In this study, county-level and 0.1° × 0.1° gridded anthropogenic N<sub>2</sub>O emission inventories for China (PKU-N<sub>2</sub>O) in 2008 are developed based on high-resolution activity data and regional emission factors (EFs) and parameters. These new estimates are compared with previous inventories, and with two sensitivity tests: one that uses high-resolution activity data but the default IPCC methodology (S1) and the other that uses regional EFs and parameters but starts from coarser-resolution activity data. The total N<sub>2</sub>O emissions are 2150 GgN<sub>2</sub>O/yr (interquartile range from 1174 to 2787 GgN<sub>2</sub>O/yr). Agriculture contributes 64% of the total, followed by energy (17%), indirect emissions (12%), wastes (5%), industry (2.8%), and wildfires (0.2%). Our national emission total is 17% greater than that of the EDGAR v4.2 global product sampled over China and is also greater than the GAINS-China, NDRC, and S1 estimates by 10%, 50%, and 17%, respectively. We also found that using uniform EFs and parameters or starting from national/provincial data causes systematic spatial biases compared to PKU-N<sub>2</sub>O. Spatial analysis shows nonlinear relationships between N<sub>2</sub>O emission intensities and urbanization. Per-capita and per-GDP N<sub>2</sub>O emissions increase gradually with an increase in the urban population fraction from 0.3 to 0.9 among 2884 counties, and N<sub>2</sub>O emission density increases with urban expansion. NDRC;2150 GgN 2O;N 2O emissions;N 2O emission intensities;anthropogenic N 2O emission inventories;EF;EDGAR v 4.2;default IPCC methodology;S 1 estimates;N 2O emission density increases;2787 GgN 2O Agriculture;activity data 2014-08-05
    https://acs.figshare.com/articles/journal_contribution/A_New_High_Resolution_N_sub_2_sub_O_Emission_Inventory_for_China_in_2008/2268427
10.1021/es5018027.s001