数字技术时空分布及对生态环境的影响

Spatial and Temporal Distribution of Digital Technologies and Their Impact on Ecological Environments

摘要: 基于2006~2021年中国30个省级行政区面板数据和中国高分辨率生态环境质量数据集(CHEQ)，从数字基础设施、数字技术应用和数字技术创新三个维度构建数字技术发展水平综合指数，运用熵值法、莫兰指数和双向固定效应模型，考察数字技术发展的时空特征及其对生态环境质量的影响。结果表明：样本期内中国数字技术发展水平持续提升，整体呈现东部高于中部、中部高于西部的梯度格局；各数字技术测度指标整体空间相关性较弱，但局部空间分异明显；双向固定效应回归和稳健性检验结果均表明，数字技术发展水平对生态环境质量具有显著正向影响。

Abstract: Based on panel data from 30 province-level administrative regions in China from 2006 to 2021 and the High-Resolution Ecological Environment Quality Dataset (CHEQ) in China, this study constructed an index of digital technology development level from three dimensions: digital infrastructure, digital technology application, and digital technology innovation. Using entropy value method, Moran index, and two-way fixed-effect model, the study examined the spatial and temporal characteristics of digital technology development and its impact on ecological environment quality. The results show that the level of digital technology development in China has continued to rise over the sample period, with the overall pattern being a gradient of higher levels in the east than in the central region and higher levels in the central region than in the west. While the spatial correlation of various digital technology metrics is generally weak, there are significant local spatial differences. Both the two-way fixed-effect regression and robustness tests indicate that the level of digital technology development has a significant positive impact on ecological environment quality.