Acta Agriculturae Zhejiangensis ›› 2023, Vol. 35 ›› Issue (3): 676-687.DOI: 10.3969/j.issn.1004-1524.2023.03.21
• Agricultural Economy and Development • Previous Articles Next Articles
WEI Xinyan1,2(), LIU Ying3,*(
), ZHANG Junbiao1,2
Received:
2022-02-23
Online:
2023-03-25
Published:
2023-04-07
CLC Number:
WEI Xinyan, LIU Ying, ZHANG Junbiao. Can Climate-Smart Agriculture Project reduce agricultural carbon emission: experience evidence from Climate-Smart Staple Crop Production Project in Anhui, China[J]. Acta Agriculturae Zhejiangensis, 2023, 35(3): 676-687.
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URL: http://www.zjnyxb.cn/EN/10.3969/j.issn.1004-1524.2023.03.21
变量 Variable | 平均值 Mean | 标准差 Standard deviation | 最小值 Minimum | 最大值 Maximum |
---|---|---|---|---|
C | 111.809 1 | 59.111 7 | 30.052 5 | 611.664 5 |
Z1 | 13.275 7 | 0.888 5 | 11.164 1 | 14.851 4 |
Z2 | 0.351 0 | 0.117 5 | 0.002 6 | 0.675 4 |
Z3 | 0.216 0 | 0.114 2 | 0.073 1 | 0.843 6 |
Z4 | 0.485 6 | 0.093 9 | 0.050 6 | 0.686 9 |
Z5 | 6.275 6 | 0.355 4 | 5.380 2 | 7.923 8 |
Z6 | 4.728 9 | 0.680 8 | 3.402 9 | 6.416 2 |
Z7 | 4.561 8 | 0.410 9 | 3.530 4 | 5.236 5 |
Table 1 Variables and descriptive statistics
变量 Variable | 平均值 Mean | 标准差 Standard deviation | 最小值 Minimum | 最大值 Maximum |
---|---|---|---|---|
C | 111.809 1 | 59.111 7 | 30.052 5 | 611.664 5 |
Z1 | 13.275 7 | 0.888 5 | 11.164 1 | 14.851 4 |
Z2 | 0.351 0 | 0.117 5 | 0.002 6 | 0.675 4 |
Z3 | 0.216 0 | 0.114 2 | 0.073 1 | 0.843 6 |
Z4 | 0.485 6 | 0.093 9 | 0.050 6 | 0.686 9 |
Z5 | 6.275 6 | 0.355 4 | 5.380 2 | 7.923 8 |
Z6 | 4.728 9 | 0.680 8 | 3.402 9 | 6.416 2 |
Z7 | 4.561 8 | 0.410 9 | 3.530 4 | 5.236 5 |
变量符号 Variable symbol | 真实值 Real value | 拟合值 Synthetic value |
---|---|---|
Z1 Z2 | 14.787 8 0.391 4 | 13.876 5 0.413 9 |
Z3 | 0.137 6 | 0.106 0 |
Z4 | 0.572 0 | 0.498 1 |
Z5 | 6.177 4 | 6.193 2 |
Z6 | 4.827 5 | 4.833 0 |
Z7 | 4.898 6 | 4.889 8 |
Table 2 Comparison of real values and fitting values of variables
变量符号 Variable symbol | 真实值 Real value | 拟合值 Synthetic value |
---|---|---|
Z1 Z2 | 14.787 8 0.391 4 | 13.876 5 0.413 9 |
Z3 | 0.137 6 | 0.106 0 |
Z4 | 0.572 0 | 0.498 1 |
Z5 | 6.177 4 | 6.193 2 |
Z6 | 4.827 5 | 4.833 0 |
Z7 | 4.898 6 | 4.889 8 |
年份 Year | 影响效应 Effect/kg | 变化率 Change rate/% |
---|---|---|
2015 | 2.229 9 | 1.57 |
2016 | -0.408 4 | -0.29 |
2017 | -3.479 5 | -2.51 |
2018 | -5.6431 | -4.10 |
2019 | -2.587 0 | -1.84 |
Table 3 Impact of Climate-Smart Agricultural Project on agricultural carbon emissions in 2015-2019
年份 Year | 影响效应 Effect/kg | 变化率 Change rate/% |
---|---|---|
2015 | 2.229 9 | 1.57 |
2016 | -0.408 4 | -0.29 |
2017 | -3.479 5 | -2.51 |
2018 | -5.6431 | -4.10 |
2019 | -2.587 0 | -1.84 |
变量 Variable | lnC | Z4 | lnC | Z1 | lnC | Z2 | lnC |
---|---|---|---|---|---|---|---|
D | -1.650*** (0.023) | -0.135*** (0.011) | -0.995*** (0.340) | -0.024 (0.029) | -1.650*** (0.024) | -0.263*** (0.011) | -0.522 (0.617) |
Z4 | — | — | 4.853* (2.479) | — | — | — | — |
Z1 | — | — | — | — | -0.012 (0.143) | — | — |
Z2 | — | — | — | — | — | — | 4.283* (2.293) |
常数项 Constant | 10.225*** (0.357) | 0.051 (0.175) | 9.976*** (0.661) | 12.849*** (0.346) | 10.385*** (1.874) | 0.391* (0.220) | 8.549*** (0.861) |
n | 207 | 207 | 207 | 207 | 207 | 207 | 207 |
R2 | 0.851 | 0.719 | 0.926 | 0.990 | 0.851 | 0.619 | 0.933 |
Table 4 Results of mechanism test
变量 Variable | lnC | Z4 | lnC | Z1 | lnC | Z2 | lnC |
---|---|---|---|---|---|---|---|
D | -1.650*** (0.023) | -0.135*** (0.011) | -0.995*** (0.340) | -0.024 (0.029) | -1.650*** (0.024) | -0.263*** (0.011) | -0.522 (0.617) |
Z4 | — | — | 4.853* (2.479) | — | — | — | — |
Z1 | — | — | — | — | -0.012 (0.143) | — | — |
Z2 | — | — | — | — | — | — | 4.283* (2.293) |
常数项 Constant | 10.225*** (0.357) | 0.051 (0.175) | 9.976*** (0.661) | 12.849*** (0.346) | 10.385*** (1.874) | 0.391* (0.220) | 8.549*** (0.861) |
n | 207 | 207 | 207 | 207 | 207 | 207 | 207 |
R2 | 0.851 | 0.719 | 0.926 | 0.990 | 0.851 | 0.619 | 0.933 |
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