Earth's critical zone and karst critical zone: Structure, characteristic and bottom boundary by Junbing Pu

“…By comparison, the KCZ has eight following characteristics: active involvement of carbonate rock in the material cycle, sensitive response to external environmental changes, multilayer hydrogeological structures, strong horizontal spatial heterogeneity, large underground space network, large-span biota structure, unique ecohydrological processes with carbonate rock water-vegetation interaction as well as varying lateral boundary controlled by subsurface divide change. …”
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The Dependence of Short Video Creators' Virtual Space on Geographic Space: Data Analysis Based on Bilibili by Wei Yi, Cheng Siqi, Zhang Xinyue, Zhu Huasheng

“…Therefore, the following conclusions were drawn: (1) There is only a weak positive correlation between the virtual space level of the top short video creators and the geospatial hierarchy. (2) The construction of virtual space networks by top short video creators exhibits geographical proximity and hierarchical orientation, demonstrating a certain dependence on the geospatial space. (3) The virtual space activities of the top short video creators are significantly influenced by factors such as the economic and cultural levels of their cities. …”
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