To address two critical gaps in vegetation carbon sink (VCS) research---its limited policy relevance at the county scale and the insufficient identification of nonlinear interactive effects within driving mechanisms---this study focuses on the Chengdu-Chongqing Economic Circle (CCEC). Using MODIS NPP data (2002--2022), we examined the spatiotemporal dynamics of VCS through time-series analysis, standard deviational ellipse, and spatial autocorrelation analysis. Crucially, we applied the Geodetector model to quantitatively disentangle the roles of natural and anthropogenic drivers. The results show that: (1) VCS followed a fluctuating upward trajectory, peaking in 2019, but declined sharply i... More >

Deep shale sedimentary environment, diagenesis, and pore evolution are closely related to the occurrence state and content of shale gas, exerting significant control on reservoir quality. In this study, scanning electron microscopy (SEM), mineral composition, spectral gamma-ray logging, elemental logging, and comprehensive well log data were used to analyze the sedimentary environment. Combined with pore structure and storage space experiments, the geological conditions for deep shale gas accumulation were discussed. The Longmaxi Formation high-quality shale reservoirs in southern Sichuan (Luzhou area) are laterally extensive, vertically thick, and contain well-developed natural fractures; t... More >

Based on in-depth investigation and analysis of the current situation of CCUS development in China, this paper combs and summarizes the technical status and development trends of the carbon capture, transportation, utilization and storage industry (CCUS) at home and abroad in recent years through comprehensive research, and conducts in-depth discussions on the existing technical problems and risks. The analysis shows that in the short term, China's CCUS will still be dominated by CO2-EOR (Enhanced Oil Recovery) utilization. CO2 mineralization utilization and chemical utilization will gain new development space with technological breakthroughs. Pure carbon dioxide storage is restricted by pol... More >

The shale gas content of the Longmaxi Formation exhibits significant spatial variation in different structural parts of the Sangzhi area in Hubei Province, reflecting differences in preservation conditions. To quantitatively evaluate these conditions, this study integrates analyses of structural features, fault distribution, formation water chemistry, and shale gas composition from four wells. Results show that preservation is primarily controlled by the F1 and F3 faults. Wells distant from these faults (SY3 and SY5) display weak connectivity with surface water, feature CaCl2-type formation water with high salinity and diagnostic ion coefficients, and contain hydrocarbon gases derived from o... More >

Against the backdrop of a profound global energy transition and escalating ecological and environmental risks, the Journal of Geo-Energy and Environment (JGEE) is launched to build a high-level scholarly platform at the intersection of 'Geo-Energy–Environment–Ecology'. JGEE focuses on conventional fossil energy, geothermal energy, and natural gas hydrates, as well as new energy sources such as hydropower, photovoltaics, and hydrogen, and advocates a closed-loop and cross-scale integration of theory–technology–numerical simulation–experiment. It concentrates on energy–environment coupling and resource management, including Carbon capture, utilization, and storage (CCUS), methane m... More >