Table 1.
A descriptive statistical analysis of variables.
| Indicator | Variable Name | Indicator | Variable Name |
|---|---|---|---|
| Input indicators | Agricultural laborers (104 people) | Dependent variable | ECLU (TE) |
| Total sown area of farm crops (103 hectares) | Independent variables | Labor transfer (Labor; %) | |
| Total power of agricultural machinery (104 kW) | Squared term of labor transfer (Labor2; %) | ||
| Effective irrigation area/103 hectares | Control variables | Cultivated land area per laborer (Land; hectare) | |
| Agricultural consumption of chemical fertilizers by effective component (104 tons) | Multiple cropping index (MCI; %) | ||
| Consumption of pesticides (104 tons) | Peasant’s net income per capita (PINC; yuan) | ||
| Consumption of agricultural plastic film (104 tons) | Irrigation index (IRR; %) | ||
| Desirable output indicators | Gross crop production (104 tons) | Average total power of agricultural machinery (ATP; kW) | |
| Undesirable output indicators | Carbon emissions (104 tons) | Average agricultural consumption of chemical fertilizers (by effective component, FER; ton) | |
| NPS pollution (104 tons) | Proportion of agricultural expenditure of government (AGE; %) |