While scholars have increasingly focused on the role of cultural resources in sustainable urban development, yet issues related to the evolution of these resources have not been adequately explored. This study fills this gap by innovatively applying a modified species diversity and abundance index to quantifies the diversity and abundance of cultural resources, and then we detect the evolution pattern in types and absolute quantities of urban cultural resources across 14 major Chinese cities from 1999 to 2018.

This empirical study compares the effects of face-to-face and online communication in driving innovation output at the regional level under the traffic constraints imposed by the COVID-19 pandemic, to examine whether innovation can overcome spatial barriers through online communication.

We introduce an intercity investment network (IIN) dataset for China, covering the period from 2000 to 2020, based on 17,273,411 large-scale enterprise registration records. The dataset represents 367 cities as nodes, with investment frequency between cities serving as edge weights to construct both directed and undirected networks.