Table 1 Carbon sources, carbon emission coefficients, and references for cultivated land use.

From: Spatial temporal trends and inequality in agricultural eco-efficiency under carbon constraints in China

Carbon Source

Carbon Emission Coefficient

Reference

Fertilizer

0.8956 kg/kg

West T.O. et al., Oak Ridge National Laboratory, USA

Pesticide

4.9341 kg/kg

Oak Ridge National Laboratory, USA

Agricultural Film

5.18 kg/kg

IREEA

Agricultural Diesel

0.5927 kg/kg

IPCC

Agricultural Irrigation

18.51 kg/hm²

Dubey et al. (2009)

Tillage of Cultivated Land

312.6 kg/km²

College of Agronomy and Biotechnology, China Agricultural University

  1. Note: Based on the methods of Dubey and Lal (2009), the carbon emission coefficient for agricultural irrigation is calculated by multiplying the original coefficient of 25 kg/hm² by the proportion of thermal power generation in total electricity production in China, which was 0.7404 for the period 2011–2020, as derived from the China Statistical Yearbook. This results in a carbon emission coefficient of 18.51 kg/hm² for agricultural irrigation.
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