Crops ›› 2023, Vol. 39 ›› Issue (5): 264-271.doi: 10.16035/j.issn.1001-7283.2023.05.037

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Analysis of Influencing Factors of Carbon Emissions from Planting Production Based on LMDI Model and Approaches of Carbon Mitigation in Gansu Province

Li Wei1(), Meng Pingzhu2, Li Caidi2, Yan Zhengang2()   

  1. 1College of Finance and Economics, Gansu Agricultural University, Lanzhou 730070, Gansu, China
    2College of Information Science and Technology, Gansu Agricultural University, Lanzhou 730070, Gansu, China
  • Received:2022-05-11 Revised:2022-09-04 Online:2023-10-15 Published:2023-10-16

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Abstract:

Carbon emission from planting production played large porportion of total amount of carbon emission from agricultural production. Therefore, estimating carbon emissions from planting produciton, analyzing the influencing factors, achieving the carbon sequestration and emission mitigation in regional agricultural production had important significance. Carbon emission evaluation and influencing factors were analyzed for planting production in Gansu, this study was to construct the index system of carbon emission from planting production using LMDI model, and evaluated the carbon emission from the five typical ecological zones in recent ten years. The results showed that carbon emissions from planting production during 2009 to 2019 generally increased first and then declined, but the carbon emission intensity decreased gradually. Hexi region had the highest carbon emissions (0.79t C/ha) from planting production and a lower carbon emission intensity (0.20t C/×104 yuan). The nationality region had the lowest carbon emissions (0.45t C/ha) and the highest carbon emission intensity (0.31t C/×104yuan). Tillage, fertilizer, irrigation and machinery were the dominant sources of carbon emission. Agricultural structure, population and economic factors had effectively effects on carbon emissions, and impact of economy factor was more obvious. Carbon emission intensity and industrial structure had inhibiting effects on carbon emissions, and the impact of carbon emission intensity was more obvious. Thus, to mitigate carbon emissions from planting production in Gansu, the main approaches should be application of agronomic measures of protective crop rotation, no-tillage or less tillage, combined application of organic and inorganic fertilizer, water saving irrigation, use of new energy agricultural machinery. The transformation of traditional agriculture to modern agriculture is the main way to reduce carbon emissions in planting production.

Key words: LMDI factor decomposition model, Planting production, Carbon emissions, Influencing factors, Approaches of carbon mitigation

Table 1

Carbon emission coefficients in crop production"

符号
Symbol		 碳排放源
Carbon emission source		 碳排放系数
Carbon emission coefficient		 文献
Reference
A 化肥生产和使用过程产生的碳排放 0.8956kg C/t [11]
B 地膜生产和使用过程产生的碳排放 5.18kg C/kg [12]
C 农业灌溉过程中用电产生的碳排放 266.48kg C/hm2 [12]
D 农业翻耕造成土壤CO2碳排放 312.6kg C/hm2 [13]
E 农业机械使用过程消耗化石燃料（柴油、电力等）产生的碳排放 0.18kg C/kW [14]

Fig.1

Total carbon emissions and growth rate of planting production during 2009-2019 in Gansu"

Table 2

Carbon emission from regional planting production in Gansu province t/hm2"

地区
Region		 市/自治州
Municipality/
autonomous prefecture		 2009 2010 2011 2012 2013 2014 2015 2016 2017 2018 2019 年平均值
Annual
average		 地区平均值
Region
average
河西地区
Hexi oasis		 武威 0.48 0.61 0.59 0.57 0.56 0.57 0.56 0.45 0.52 0.53 0.48 0.54±0.05 0.79±0.14
金昌 0.57 0.80 0.79 0.81 0.86 0.80 0.78 0.72 0.70 0.70 0.73 0.75±0.08
张掖 0.59 0.78 0.83 0.88 0.91 0.93 0.92 0.87 0.86 0.83 0.92 0.85±0.09
嘉峪关 0.69 1.01 1.08 1.11 1.09 1.15 1.11 0.87 0.48 0.48 0.49 0.87±0.03
酒泉 0.71 0.96 0.97 0.99 0.99 1.01 0.98 0.90 0.88 0.90 0.89 0.93±0.08
陇东黄土高原
Loess plateau of east Gansu		 平凉 0.90 0.94 0.92 0.90 0.91 0.89 0.88 0.87 0.73 0.72 0.68 0.85±0.09 0.66±0.19
庆阳 0.44 0.47 0.46 0.47 0.47 0.47 0.47 0.47 0.53 0.50 0.50 0.48±0.02
陇中黄土高原
Loess plateau of
central Gansu
 兰州 0.48 0.59 0.59 0.59 0.60 0.59 0.58 0.54 0.64 0.63 0.61 0.59±0.04 0.54±0.04
白银 0.46 0.55 0.54 0.54 0.55 0.56 0.56 0.56 0.53 0.53 0.53 0.54±0.03
定西 0.43 0.46 0.45 0.48 0.49 0.49 0.50 0.50 0.52 0.51 0.51 0.48±0.03
秦巴山区
Qianba mountain		 天水 0.45 0.47 0.48 0.48 0.47 0.48 0.48 0.50 0.61 0.59 0.62 0.51±0.06 0.51±0.06
陇南 0.45 0.49 0.50 0.50 0.50 0.50 0.50 0.49 0.55 0.53 0.52 0.50±0.02
民族地区
Nationality region		 临夏 0.44 0.54 0.52 0.53 0.52 0.52 0.52 0.51 0.54 0.55 0.53 0.52±0.03 0.45±0.07
甘南 0.35 0.38 0.38 0.38 0.38 0.38 0.38 0.38 0.39 0.38 0.37 0.38±0.01

Fig.2

Intensity and growth rate of carbon emission from planting production during 2009-2019 in Gansu province"

Table 3

"

地区
Region		 市/自治州Municipality/
autonomous prefecture		 2009 2010 2011 2012 2013 2014 2015 2016 2017 2018 2019 年平均值
Annual
average		 地区平均值
Region
average
河西地区
Hexi oasis		 武威 0.33 0.38 0.35 0.19 0.25 0.24 0.21 0.16 0.20 0.18 0.14 0.24±0.08 0.20±0.06
金昌 0.28 0.35 0.33 0.25 0.27 0.23 0.23 0.19 0.24 0.21 0.16 0.25±0.05
张掖 0.24 0.28 0.27 0.15 0.22 0.23 0.22 0.19 0.30 0.24 0.18 0.23±0.04
嘉峪关 0.09 0.11 0.10 0.07 0.09 0.09 0.09 0.07 0.07 0.07 0.06 0.08±0.02
酒泉 0.23 0.27 0.25 0.13 0.20 0.19 0.17 0.14 0.22 0.19 0.14 0.19±0.07
陇东黄土高原
Loess plateau of east Gansu		 平凉 0.40 0.35 0.33 0.21 0.26 0.23 0.20 0.19 0.23 0.17 0.17 0.25±0.07 0.28±0.04
庆阳 0.46 0.40 0.37 0.24 0.28 0.28 0.27 0.27 0.37 0.31 0.25 0.32±0.07
陇中黄土高原
Loess plateau of
central Gansu
 兰州 0.26 0.28 0.25 0.18 0.22 0.20 0.18 0.16 0.23 0.19 0.15 0.21±0.04 0.27±0.05
白银 0.36 0.39 0.38 0.21 0.30 0.28 0.27 0.26 0.27 0.24 0.19 0.29±0.06
定西 0.46 0.43 0.40 0.25 0.29 0.29 0.28 0.28 0.32 0.28 0.24 0.32±0.07
秦巴山区
Qianba mountain		 天水 0.31 0.26 0.24 0.17 0.19 0.17 0.16 0.16 0.17 0.17 0.13 0.19±0.05 0.24±0.05
陇南 0.49 0.45 0.35 0.31 0.29 0.26 0.25 0.24 0.22 0.20 0.17 0.29±0.10
民族地区
Nationality region		 临夏 0.34 0.34 0.30 0.26 0.24 0.23 0.22 0.21 0.24 0.24 0.21 0.26±0.05 0.31±0.05
甘南 0.41 0.41 0.48 0.40 0.37 0.34 0.33 0.30 0.37 0.28 0.23 0.36±0.07

Fig.3

Changes of carbon emissions from inputs of planting production during 2009-2019 in Gansu province"

Table 4

Total carbon emissions and percentage from inputs of regional planting production during 2009-2019 in Gansu province"

地区
Region		 市/自治州Municipality/
autonomous
prefecture		 化肥
Fertilizer		 灌溉
Irrigation		 翻耕
Tillage		 农用机械
Farm machinery
总量
Total（×104t）		 比重
Proportion (%)		 总量
Total（×104t）		 比重
Proportion (%)		 总量
Total（×104t）		 比重
Proportion (%)		 总量
Total（×104t）		 比重
Proportion (%)
河西地区
Hexi oasis		 武威 128.73 15.30 49.97 16.97 85.89 6.29 0.62 14.95
金昌 19.90 2.37 16.66 5.66 26.29 1.93 0.19 4.52
张掖 89.43 10.63 49.78 16.90 93.17 6.83 0.43 10.31
嘉峪关 1.80 0.21 0.81 0.27 1.69 0.12 0.02 0.53
酒泉 73.97 8.79 44.53 15.12 60.78 4.45 0.44 10.41
陇东黄土高原
Loess plateau of east Gansu		 平凉 91.75 10.91 11.37 3.86 147.90 10.83 0.23 5.51
庆阳 95.19 11.31 13.34 4.53 208.94 15.31 0.34 8.04
陇中黄土高原
Loess plateau of
central Gansu
 兰州 41.04 4.88 20.70 7.03 71.88 5.27 0.27 6.40
白银 50.47 6.00 26.92 9.14 108.71 7.96 0.39 9.25
定西 84.89 10.09 17.61 5.98 188.67 13.82 0.43 10.28
秦巴山区
Qianba mountain		 天水 74.84 8.90 9.60 3.26 154.50 11.32 0.27 6.56
陇南 64.54 7.67 16.92 5.75 136.85 10.02 0.31 7.38
民族地区
Nationality region		 临夏 21.42 2.55 14.74 5.00 55.52 4.07 0.17 4.07
甘南 3.36 0.40 1.55 0.53 24.35 1.78 0.07 1.78

Table 5

Contribution values of carbon emissions from planting production in Gansu province ×104t"

年份Year ΔCI ΔAI ΔSI ΔEI ΔP ΔC
2009 － － － － － －
2010 -28.95 2.57 27.58 42.76 0.46 44.42
2011 -16.82 -3.64 24.38 46.23 0.38 50.54
2012 -20.90 -0.36 26.71 25.71 1.24 32.40
2013 -19.71 -2.00 25.84 26.19 0.44 30.76
2014 -8.92 -1.34 12.99 19.14 0.83 22.70
2015 -12.99 1.28 12.35 0.62 0.85 2.11
2016 -17.59 -12.90 20.73 11.91 0.99 3.14
2017 -36.88 2.25 15.20 12.66 1.41 -5.35
2018 -19.17 2.93 15.72 21.39 0.99 21.86
2019 -24.74 -2.81 27.58 15.62 0.87 16.51
总计Total -206.66 -14.30 209.09 222.23 8.44 219.07
贡献值
Contribution value		 0.42 0.95 2.42 2.57 1.04 －
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