Based on the panel data of 30 provinces (excluding Tibet) in China from 2011 to 2022, this study explores the impact of digital rural construction on agricultural green total factor productivity (AGTFP). The data sources include the agricultural input-output data (2011–2022) required for AGTFP calculation, which comes from the China Statistical Yearbook, China Rural Statistical Yearbook, and provincial statistical yearbooks; digital rural construction indicators and other control variables and mediating variable data (2012–2022) mainly come from the China Taobao Village Research Report and the Peking University Digital Inclusive Finance Index. The research process is as follows: First, the entropy method is used to construct a comprehensive evaluation index system for digital rural construction, and the EBM-GML method is used to measure AGTFP and its decomposition indicators; secondly, the fixed effect model is used to test the impact of digital rural construction on AGTFP; thirdly, the mediating effect model is used to analyze the transmission mechanism of agricultural informatization and rural human capital; finally, a heterogeneity analysis is conducted based on regional and functional area divisions, and the reliability of the research conclusions is verified through multiple robustness tests.
6.1. Benchmark Regression Results
Based on the LM test, F test, and Hausman test results, this paper employs a fixed-effects model for analysis.
Table 5 presents the stepwise regression results, where column (1) is a univariate regression, and columns (2)–(5) progressively incorporate control variables. Comparing the results from columns (1) to (5), it is evident that the variable’s coefficient size and significance level remain relatively stable as control variables are added. This stability indicates the robustness of the impact of digitalization on AGTFP.
Column (5) serves as the baseline regression model, showing that the coefficient of lndig is positive and statistically significant at the 1% level. This finding implies that digitalization significantly enhances AGTFP by improving the efficiency of resource allocation, advancing agricultural modernization, and facilitating the adoption of green production technologies. Furthermore, the positive and significant coefficients of control variables—fiscal expenditure (lnfisc), rural infrastructure (lnstr), and agricultural price indices (lnapi)—demonstrate the comprehensive factors supporting AGTFP growth.
The R² value of the model is 0.124, and the goodness of fit is low. The possible reasons are as follows: First, the panel data model is adopted in this study, and the individual time dual fixed effect is adopted, so the R² value is usually lower than the cross-section data. Second, as a comprehensive index, the change of agricultural total factor productivity is affected by many challenging-to-quantify factors, such as weather conditions, natural disasters, and other random impacts. Third, the research sample covers 30 provinces, with significant differences in resource endowment and agricultural development levels among different regions. Such regional heterogeneity will also affect the degree of overall fit of the model. According to the regression results, the main explanatory variables all show good statistical significance, indicating that the model can effectively capture the impact of the core explanatory variable, digital village, on agricultural total factor productivity.
The regression results indicate that digital village development significantly contributes to AGTFP, validating Hypothesis 1. The baseline model’s lndig coefficient (0.132) increases AGTFP by 0.132 units for every unit increase in digital village development. Thus, digital village development significantly impacts agricultural sustainability through improved resource allocation efficiency and technological advancement.
6.2. Robustness Tests
In the baseline regression, a stepwise regression method was used, and the results showed that the coefficients and significance of Digital Village and AGTFP remained stable, which reflects the robustness of the findings to some extent. To further validate the robustness of the findings, this study conducted additional robustness checks, including replacing the model, altering the dependent and independent variables, and excluding the four municipalities. The specific results are presented in
Table 6.
First, the fixed-effects model was replaced with a random effects model, as shown in column (1) of
Table 6. The results indicate that rural digitalization continues to impact AGTFP significantly, which is consistent with the baseline regression and further demonstrates the robustness of the findings. Second, the dependent variable was replaced with AGTFP-GML, calculated using an output-oriented approach. The results, shown in column (2), remain significant. Similarly, the key independent variable was replaced with indigo, measured using the Principal Component TOPSIS method, and the results remained significant, as seen in column (3). Finally, considering the unique characteristics of Beijing, Shanghai, Tianjin, and Chongqing—where the urban-rural divide is less pronounced, agriculture is not primarily production-oriented, and digital infrastructure is highly advanced—the four municipalities were excluded from the analysis. The results, shown in column (4), indicate that the impact of rural digitalization on AGTFP remains significant.
In conclusion, the robustness checks consistently demonstrate that rural digitalization has a stable and positive effect on AGTFP. This proves that digital village construction significantly contributes to sustainable agricultural development, further supporting Hypothesis 1.
6.3. Heterogeneity Analysis
The baseline regression focuses on examining the average effects of rural digitalization. However, given China’s vast territory and significant regional differences in geographical location, resource endowments, agricultural economic development levels, and agricultural infrastructure, it is essential to explore the heterogeneous effects across different dimensions. This study analyzes heterogeneity based on regional division, geographical location, and grain functional zones. Specifically, the country is divided into eastern, central, and western regions for the regional division. The impact of rural digitalization on AGTFP is estimated separately for these regions, as shown in
Table 7.
Following the regional classification framework established by the National Bureau of Statistics of China and widely adopted in academic research (
Li et al., 2022;
Wolfert et al., 2017), this study divides China’s provinces into three regions:
Eastern China: Beijing, Tianjin, Hebei, Liaoning, Shanghai, Jiangsu, Zhejiang, Fujian, Shandong, Guangdong, and Hainan. Central China: Shaanxi, Jilin, Heilongjiang, Anhui, Jiangxi, Henan, Hubei, and Hunan. Western China: Inner Mongolia, Guangxi, Chongqing, Sichuan, Guizhou, Yunnan, Shaanxi, Gansu, Qinghai, Ningxia, and Xinjiang.
The regional heterogeneity analysis results show that rural digitalization’s impact on AGTFP shows significant spatial differences. The INDIG coefficient in the eastern region is 0.151, which is significantly positive at the 5% significance level, indicating that rural digitalization significantly promotes AGTFP. This result is consistent with the regional characteristics of the eastern region, such as the superior economic foundation, complete digital infrastructure system, high digital literacy level of agricultural operators, and agglomeration of scientific research institutions with technology spillover effects.
In comparison, the central region (0.133) and the western region (0.137) showed positive effects but did not reach the statistical significance level. The central region has shown a positive impact with its relatively complete digital infrastructure and moderate economic development level. The fact that the coefficient of the western region did not reach significance reflects the constraints faced by the region in terms of digital penetration, infrastructure construction, and accessibility of agricultural resources. However, the positive coefficient of the western region suggests its potential for latecomer advantage. Absorbing the technological spillover effects of the eastern and central regions is expected to accelerate the digitalization process and gradually narrow the regional development gap.
- 2.
Heterogeneity Between Southern and Northern Regions
The analysis also uncovers notable differences between southern and northern provinces. In the south, the coefficient of lndig is 0.170 and significant at the 1% level, highlighting the substantial impact of rural digitalization on AGTFP. Southern provinces have historically led in digital village construction, with earlier adoption and faster progression of digital technologies in agriculture. This advantage, more substantial economic support, and mature e-commerce ecosystems contribute to the positive effect.
In the north, the coefficient of lndig is negative (−0.006) and not statistically significant. This suggests that digitalization has yet to exert a meaningful impact on AGTFP in northern regions. Contributing factors include slower adoption of digital technologies, lower levels of rural digital literacy, and the region’s focus on traditional farming methods. Systemic improvements in digital infrastructure and capacity-building initiatives are crucial to enhancing the effectiveness of digital village construction in the north.
- 3.
Heterogeneity Across Grain Functional Zones
The impact of rural digitalization on AGTFP varies significantly across grain functional zones. In grain-producing regions, the coefficient of lndig is 0.113 and highly significant at the 1% level, indicating that digital technologies play a critical role in improving productivity through precision agriculture and efficient resource allocation. In grain-marketing regions, the coefficient is 0.162 and significant at the 10% level, reflecting the benefits of digitalization in reducing transaction costs and enhancing supply chain efficiency.
In grain-balance regions, the coefficient of lndig is 0.197, which is significant at the 10% level. This suggests that digitalization also supports agricultural productivity in these areas, though to a lesser extent than producing and marketing zones. The weaker effects in balance zones may be attributed to a less pronounced focus on agricultural production and trade and greater reliance on external support for technology diffusion.
Our heterogeneity analysis reveals that regional economic structures and institutional environments fundamentally shape the effectiveness of digital village initiatives. The significant positive effects in eastern regions (coefficient = 0.151,
p < 0.05) and southern provinces (coefficient = 0.170,
p < 0.01) reflect the role of agglomeration economies and institutional complementarities in technology adoption, consistent with endogenous growth theory’s emphasis on increasing returns to scale (
Acemoglu, 2009).
The varying impacts across grain functional zones, particularly the significant effects in major grain-producing areas (coefficient = 0.113,
p < 0.01), demonstrate how resource endowment structures influence the returns to digital transformation. As
Li et al. (
2022) document, regions with stronger institutional foundations exhibit path dependency in digital adoption, where market depth and complementary capabilities create self-reinforcing mechanisms for continued innovation. This pattern aligns with technological innovation theory’s focus on cumulative learning and institutional evolution (
Nelson & Winter, 1982).
Overall, the heterogeneity results underscore the varying degrees of rural digitalization’s impact on AGTFP, influenced by regional and functional disparities in economic conditions, infrastructure development, and agricultural priorities. These findings highlight the importance of tailored policies and strategies to address different regions’ and functional zones’ specific needs and challenges, fostering balanced and inclusive agricultural development and verifying Hypothesis 4.
6.4. Impact Mechanism Test
We conduct a comprehensive mechanism analysis using two approaches to investigate the specific mechanisms through which digital village construction affects AGTFP. First, we decompose AGTFP into two components—green technology efficiency (eff) and green technology progress (tech)—and examine the impact of digital village construction on each element separately (columns 1–2). Second, we employ a three-step mediation analysis to test the heterogeneity analysis, which reveals dynamic changes in policy effectiveness across regions over time, as well as the mediating roles of both rural human capital (lnedu) and agricultural informatization (lninf) (columns 3–6). For each mediator, we examine (a) the impact of digital village construction on the mediator, (b) the effect of the mediator on AGTFP, and (c) the direct effect of digital village construction on AGTFP while controlling for the mediator. The results presented in
Table 8 report the coefficient estimates and significance levels for each mechanism test.
1. Green Technology Efficiency (eff) and Green Technology Progress (tech).The impact of digital village construction on green technology efficiency is insignificant (column 1) due to the following interrelated factors: First, from a micro perspective, small farmers generally cannot apply digital technology. This is reflected in the significant correlation between farmers’ digital technology acceptance and the regional development level, which restricts the effective application of advanced technology in agricultural production. This can also be verified from the heterogeneity analysis in
Table 7. Due to the high level of digital literacy in the eastern region, the promotional effect of digital village construction on AGTFP is more significant (the coefficient is 0.151, significant at the 5% level).
Second, from the institutional level, there are structural barriers in the rural land system. The current land contract system and high transfer costs hinder the large-scale concentration of farmland, which is not conducive to the large-scale application of digital technology. This can be seen from
Table 7—The coefficient of the main production area (0.113) is significantly higher than that of other regions, indicating the importance of large-scale operations to the application of digital technology.
Third, from the market level, the imperfect development of the agricultural market system, especially the lack of a market-oriented allocation mechanism, reduces farmers’ enthusiasm for adopting digital technology. This is reflected in information asymmetry and imperfect price mechanisms, which significantly restrict the effect of agricultural digital transformation. This can also be confirmed by the benchmark regression results in 6.1 of the articles—the coefficient of the agricultural price index (lnapi) is significantly positive, indicating that the market mechanism has an important impact on technical efficiency.
These factors jointly weaken the potential of digital village construction to improve the efficiency of green technology. This conclusion is consistent with the article’s theoretical analysis framework and is supported by empirical results.
Column (2) demonstrates that digital village construction significantly and positively influences green technology progress. This reflects the ability of digital village initiatives to drive the development and adoption of green technologies. By fostering research and development (R&D) in green technologies, accelerating their dissemination, and promoting the adoption of innovative practices, digital village construction actively propels green technological advancements. Therefore, Hypothesis 1a was not confirmed, while Hypothesis 1b was confirmed.
2. Mediation Effects. The mediation effect of digital village construction through rural human capital and agricultural informatization is analyzed in columns (3) to (6).
Column (3) shows that the coefficient of digital village construction is 0.291, significant at the 1% level, indicating that digital village initiatives enhance rural human capital. Column (4) further reveals that rural human capital positively and significantly affects AGTFP, with a coefficient of 0.115 (significant at the 5% level). Together, these results suggest that digital village construction positively impacts AGTFP by improving rural human capital.
In columns (5) and (6), the coefficients of digital village construction and agricultural informatization are 0.313 and 0.040, respectively, significant at the 1% and 5% levels. This indicates that digital village construction promotes agricultural informatization, contributing positively to AGTFP. Agricultural informatization helps allocate resources accurately, improves decision-making capacity, and accelerates the adoption of advanced technologies, thus supporting sustainable growth in agricultural productivity.
The results in columns (3) to (6) suggest that digital villages support AGTFP by promoting rural human capital development and advancing agricultural informatization and that digital villages provide a platform for skill building and technology diffusion, enabling rural communities to adopt more efficient and sustainable agricultural practices. These findings confirm the mediating role of human capital and informatization in promoting the positive impacts of digital village building on AGTFP, thus validating Hypotheses 2 and 3. Further, to improve the efficiency of green technologies in agriculture, targeted interventions are needed to increase digital literacy, reduce institutional barriers in land transfer, and develop integrated agricultural markets.