Research Article

Research on the Relationship of Coupling Coordination between Digitalization and Agricultural Sustainable Development

Table 1

Evaluation index system and weight of digitalization and agricultural sustainable development.

Primary indexSecondary indexComputing methodAttributeWeight

DigitizationDigital infrastructureInternet broadband access port (unit)Direct access+0.068 0
Length of long-distance optical cable line (km)Direct access+0.091 4
Number of websites per 100 enterprises (number)Direct access+0.024 3
Express business outlets (number)Direct access+0.083 5
Application of digital technologyTotal telecom services (ten thousand yuan)Direct access+0.144 2
Household mobile phone ownership at year-end (10,000 households)Direct access+0.039 4
Number of mobile internet users (ten thousand)Direct access+0.060 0
Digital TV subscribers (10000 households)Direct access+0.033 8
Digital industry developmentElectronic communication equipment manufacturing patent applications (Number)Direct access+0.044 5
Total exports of electronic information industry (ten thousand yuan)Direct access+0.028 0
Main business income of electronic information manufacturing industry (ten thousand yuan)Direct access+0.128 7
Express delivery volume (ten thousand pieces)Direct access+0.106 1
Digital talent reserveProportion of college graduates (%)University graduates/Total population+0.072 9
R&D expenditure (ten thousand yuan)Direct access+0.040 1
Per capita investment in education (yuan)Total investment in education/Total population+0.035 1

Agricultural sustainable developmentAgricultural production inputGrowth rate of fixed asset investment (%)Direct access+0.026 2
Sown area of crops (Ha)Direct access+0.063 7
Proportion of agricultural employees (%)Number of agricultural employees/Rural population0.064 3
Total import and export of agricultural products (10000 yuan)Direct access+0.030 3
Agricultural production outputAdded value of primary industry (10000 yuan)Direct access+0.029 8
Quantity of three products and one standard product (number.)Direct access+0.038 3
Agricultural labor productivity (10000 yuan/person)Added value of agriculture, forestry, animal husbandry, sideline fisheries/Employees in the primary industry+0.041 8
Land output rate (10000 yuan/hm2)Total agricultural output value/Cultivated land area+0.039 1
Agricultural science and technology developmentTotal power of agricultural machinery (10000 kw)Direct access+0.050 6
Effective irrigation rate (%)Effective irrigation area/Cultivated land area+0.022 9
Mechanization level of crop production (%)Direct access+0.060 8
Rural social developmentRural per capita net income (yuan)Direct access+0.044 5
Rural Engel’s coefficient (%)Per capita food expenditure/Total consumption expenditure0.035 4
Per capita living area of rural residents (m2)Rural residential area/Rural resident population+0.034 0
AgroecologyPer capita public green space area (m2)Direct access+0.044 6
Application amount of chemical fertilizer per unit cultivated land (kg/km2)Total effective fertilizer application amount/Cultivated land area0.091 1
Pesticide use per unit cultivated land (kg/hm2)Total effective pesticide use/Cultivated land area0.078 4
Forest coverage (%)Forest coverage/Total land area+0.204 4