3.1. Indicators Selection and Data Source
The level of rural infrastructure construction has become an important symbol to measure the level of rural economic development and peasant living quality. According to the country’s rural revitalization strategy document and related regulations, and according to the actual situation of our country, the article selects the indicators. Then the article analyzes the development status of rural infrastructure by scientific methods. At present, rural infrastructure construction in many provinces and cities is still in a backward stage, with backward agricultural economy development, low living standard of farmers and imperfect rural social undertakings, which have seriously hindered the implementation of rural revitalization strategy. The overall research of rural infrastructure is complex and has a large workload. Based on this analysis, this article selects the indicator system, as show in
Table 1.
On the basis of the selection principle of evaluation indicators for rural infrastructure construction, according to the previous research results, the article constructs the first-level indicator “rural infrastructure construction” and the corresponding second-level indicator “agricultural production infrastructure, peasant living infrastructure and rural social undertakings infrastructure”. In addition, the third-level indicator corresponding to the second-level indicator “agricultural production infrastructure” is “rural electricity consumption, rural hydro-power stations, reservoir number, total power of agricultural machinery, agricultural large and medium-sized tractors, small tractors, cereal combine harvester and water-saving irrigation machinery”. The third-level indicator corresponding to the second-level indicator “peasant living infrastructure” is “household biogas digester, biogas project, solar water heater, per capita disposable income of farmers, the average number of cars per 100 household, the average number of refrigerators per 100 household, the average number of computers per 100 household and per capita housing area at year-end”. The third-level indicator corresponding to the second-level indicator “rural social undertakings infrastructure” is “village clinic, doctors and hygienists, hospital beds, number of adoptions by aid agencies at year-end, rural employment personnel, township cultural station, poor relief organization and rural minimum living security”.
This article collects all the data of 31 provincial administrative regions from China Rural Statistical Yearbook 2020 and the statistical yearbooks of all provinces, municipalities and autonomous regions 2020. Since the statistical yearbook 2020 did not report in detail the rural data of some infrastructures in Shanghai and the rural employment data in Sichuan, Tibet, Xinjiang and Hebei, this article uses the urban data reported in the statistical yearbook 2020 to replace the rural data for analysis.
Before performing factor analysis, the article uses the Kaiser–Meyer–Olkin (KMO) test and Bartlett test to examine whether these variables shared common variance and whether original variables had an adequate correlation to allow to reduce dimensions, as show in
Table 2. The KMO value are, respectively, 0.712, 0.701 and 0.761. Moreover, the Bartlett test rejects the null hypothesis, that is, variables are orthogonal. Results from both tests show that our data are appropriate for factor analysis.
3.2. Rebuilding the Three-Level Indicators System
According to the main contents of the selection principle of rural infrastructure construction indicators, this article selects 24 indicators such as rural electricity consumption, rural hydro-power stations and the number of reservoirs to analyze rural infrastructure construction.
Variance contribution rate refers to the influence of a common factor on each variable, which reflects the explanatory ability of the factor to the total variance of the original variable. The larger the contribution rate, the greater the influence of the corresponding factor on the original variable and the higher the importance. The article extracts three factors from the eight third-level indicators which are” rural electricity consumption, rural hydro-power stations, reservoir number, total power of agricultural machinery, agricultural large and medium-sized tractors, small tractors, cereal combine harvester and water-saving irrigation machinery”. As show in
Table 3, the variance contribution rates of these three factors after rotation are 51.116%, 22.812% and 13.552%, respectively. After rotation, the cumulative variance contribution rate is 87.48%, which shows that the three factors can extract 87.48% of the information of the eight original indexes, and the information extraction is sufficient; The article extracts three factors from the eight third-level indicators which are “household biogas digester, biogas project, solar water heater, per capita disposable income of farmers, the average number of cars per 100 household, the average number of refrigerators per 100 household, the average number of computers per 100 household and per capita housing area at year-end”. As show in
Table 3, the variance contribution rates of these three factors after rotation are 35.840%, 23.852% and 14.958%, respectively. After rotation, the cumulative variance contribution rate is 74.65%, which shows that the three factors can extract 74.65% of the information of the eight original indexes, and the information extraction is sufficient; The article extracts three factors from the eight third-level indicators which are ”village clinic, doctors and hygienists, hospital beds, number of adoptions by aid agencies at year-end, rural employment personnel, township cultural station, poor relief organization and rural minimum living security”. As show in
Table 3, the variance contribution rates of these three factors after rotation are 37.478%, 33.813% and 17.577%, respectively. After rotation, the cumulative variance contribution rate is 88.868%, which shows that the three factors can extract 88.868% of the information of the eight original indexes, and the information extraction is sufficient.
The rotated component matrix obtained by rotating the component matrix can reflect the coefficient of each variable in each common factor, indicate the load of the variable in the common factor, and name the extracted common factor in
Table 4.
The common factor “1” includes the information of cereal combine harvester, total power of agricultural machinery, small tractors, agricultural large and medium-sized tractors and water-saving irrigation machinery, and its variance contribution rate is 51.116%. Therefore, it is named as the level of agricultural mechanization.
The common factor “2” includes the information of rural hydro-power station and reservoir number, and its variance contribution rate is 22.812%. Therefore, it is named as rural water conservancy situation.
The common factor “3” only includes the situation of rural electricity consumption, and the variance contribution rate is 13.552%. Therefore, what it represents is actually the situation of rural electricity consumption.
The common factor “4” includes the information of per capita disposable income of farmers, the average number of cars per 100 household, the average number of computers per 100 household, the average number of refrigerators per 100 household and per capita housing area at year-end. The variance contribution rate of this factor is 35.84%, which can be named as the level of peasant living convenience.
The common factor “5” includes the information of biogas project and household biogas digester. In addition, its variance contribution rate is 23.852%, which can be named as the new energy situation in rural areas.
The common factor “6” only includes solar water heater, and its variance contribution rate is 14.958%, which can be named as peasant basic living level.
The common factor “7” includes the information of village clinic, doctors and hygienists, hospital beds, township cultural station and rural minimum living security. Its contribution rate is 37.478%. Therefore, it is named as medical welfare situation.
The common factor “8” includes the information of number of adoptions by aid agencies at year-end and poor relief organization. In addition, its variance contribution rate is 33.813%, which can be interpreted as the assistance situation to the rural poor.
The common factor “9” includes the information of rural employment personnel. In addition, its variance contribution rate is 17.577%. Therefore, it is named as rural employment situation in
Table 5.
Overall, the level of agricultural mechanization determines the construction of agricultural production infrastructure. On the other hand, it can be concluded that the development of agricultural economy in provinces and cities with low level of agricultural mechanization lags behind other provinces; peasant living convenience and new energy situation in rural areas determine the development of peasant living infrastructure construction in China. This shows that focusing on improving peasant living convenience level will directly affect the development of peasant living infrastructure; medical welfare and assistance to the rural poor determine the development of rural social undertakings in China. Therefore, if provinces want to improve the level of rural social infrastructure construction, they should first vigorously develop medical welfare construction.
3.3. Reconstruct a New Indicators System
In the indicators’ analysis of rural infrastructure construction, according to the above research results, 9 common factors extracted from 24 indicators are combined. However, the practical significance of these nine common factors is not obvious, and the factor needs to be rotated again to obtain more realistic explanatory factors. Therefore, the article reconstructs a new index system of rural infrastructure construction. In the index analysis of rural infrastructure construction, according to the above research results, nine common factors extracted from 24 indexes are combined. Then the article reconstructs a new indicators system of rural infrastructure construction.
As show in
Table 6, the new indicators system is the first-level index “rural infrastructure construction” and the corresponding second-level index “agricultural infrastructure construction, peasant living infrastructure construction and rural social undertakings infrastructure construction”. In addition, the third-level indicator corresponding to the second-level indicator “agricultural production infrastructure” is “level of agricultural mechanization, rural water conservancy situation, rural electricity consumption”. The third-level indicator corresponding to the second-level indicator “peasant living infrastructure” is “level of peasant living convenience, new energy situation in rural areas, peasant basic living level”. The third-level indicator corresponding to the second-level indicator” rural social undertakings infrastructure” is “medical welfare situation, assistance situation to the rural poor, rural employment situation”.
According to
Table 7 the principle of selecting factors, the article extracts four factors from the nine third-level indicators which are “level of agricultural mechanization, rural water conservancy situation, rural electricity consumption, level of peasant living convenience, new energy situation in rural areas, peasant basic living level, medical welfare situation, assistance situation to the rural poor and rural employment situation”. The variance contribution rates of these four factors after rotation are 25.319%, 23.534%, 19.425% and 13.431%, respectively. After rotation, the cumulative variance contribution rate is 82%. In addition, the information extraction is sufficient.