Spatial modelling approach and accounting method affects soil carbon estimates and derived farm-scale carbon payments.
Spatial modelling approach and accounting method affects soil carbon estimates and derived farm-scale carbon payments.
复制标题
空间建模方法和核算方法影响土壤碳估算和衍生的农场规模碳支付。
DOI:
10.1016/j.scitotenv.2022.154164
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发表时间:
2022
期刊:
影响因子:
--
通讯作者:
Beka S
中科院分区:
文献类型:
--
作者:
Beka S
Improved farm management of soil organic carbon (SOC) is critical if national governments and agricultural businesses are to achieve net-zero targets. There are opportunities for farmers to secure financial benefits from carbon trading, but field measurements to establish SOC baselines for each part of a farm can be prohibitively expensive. Hence there is a potential role for spatial modelling approaches that have the resolution, accuracy, and estimates to uncertainty to estimate the carbon levels currently stored in the soil. This study uses three spatial modelling approaches to estimate SOC stocks, which are compared with measured data to a 10 cm depth and then used to determine carbon payments. The three approaches used either fine- (100 m × 100 m) or field-scale input soil data to produce either fine- or field-scale outputs across nine geographically dispersed farms. Each spatial model accurately predicted SOC stocks (range: 26.7–44.8 t ha−1) for the five case study farms where the measured SOC was lowest (range: 31.6–48.3 t ha−1). However, across the four case study farms with the highest measured SOC (range: 56.5–67.5 t ha−1), both models underestimated the SOC with the coarse input model predicting lower values (range: 39.8–48.2 t ha−1) than those using fine inputs (range: 43.5–59.2 t ha−1). Hence the use of the spatial models to establish a baseline, from which to derive payments for additional carbon sequestration, favoured farms with already high SOC levels, with that benefit greatest with the use of the coarse input data. Developing a national approach for SOC sequestration payments to farmers is possible but the economic impacts on individual businesses will depend on the approach and the accounting method.
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DOI:
--
发表时间:
2021
期刊:
影响因子:
--
作者:
B. Troesch
通讯作者:
B. Troesch
DOI:
10.1016/j.scitotenv.2019.135585
发表时间:
2019
期刊:
The Science of the total environment
影响因子:
--
作者:
C. Pschenyckyj;Joanna M. Clark;L. Shaw;R. Griffiths;C. Evans
通讯作者:
C. Evans
DOI:
10.1016/j.scitotenv.2014.08.079
发表时间:
2015
期刊:
The Science of the total environment
影响因子:
--
作者:
G. Mühlbachová;M. Sagova;M. Omelka;J. Száková;P. Tlustoš
通讯作者:
P. Tlustoš
影响因子:
3.8
作者:
Hallett S
通讯作者:
Hallett S
影响因子:
6.1
作者:
E. Mikhailova;Abduljaleel Altememe;A. A. Bawazir;R. D. Chandler;M. Cope;C. Post;Roxanne Stiglitz;H. Zurqani;M. Schlautman
通讯作者:
M. Schlautman