Physics and Chemistry of the Earth最新文献

{"title":"Dynamic coupling coordination of territorial spatial development intensity and comprehensive disaster-carrying capability: A case study of Beijing-Tianjin-Hebei urban agglomerations, China","authors":"Wei Wang ,&nbsp;Qianqian Guo,&nbsp;Pei Yang,&nbsp;Chenhong Xia","doi":"10.1016/j.pce.2024.103818","DOIUrl":"10.1016/j.pce.2024.103818","url":null,"abstract":"<div><div>The effectiveness of the modernization of the governance system is significantly impacted by the interaction between the territorial spatial development intensity (TSDI) and the comprehensive disaster-carrying capacity (CDCC). It is of great significance to investigate the intrinsic interaction between the TSDI and the CDCC. Identifying the disaster risks induced by the intensity of the territorial spatial development and their constraints promotes synergistic development to cope with the uncertainty. The study explored the degree of coupling, the level of coordinated development, and the dynamic development trend between TSDI and CDCC from the perspective of coupling coordination. Beijing-Tianjin-Hebei (BTH) Region was used as a case study and it was found 1) there is a higher degree of coupling, and high correlation between TSDI and CDCC in the BTH urban agglomeration region; 2) the BTH region has the highest number of cities with coordination levels on the verge of maladjustment, followed by ones with barely coordinated cities; 3) while the overall level of coordination gradually increases, the overall deviation degree of development of TSDI and CDCC in the BTH urban agglomeration region is gradually decreasing; 4) there is an interactive coercion relationship between TSDI and CDCC in the BTH urban agglomeration region. This study may help provide a decision-making basis for the BTH urban agglomeration on improving the pertinence of urban disaster prevention and mitigation construction, adjusting the spatial structure of the national territory, and promoting the coordinated development of different cities. Moreover, technical support and theoretical guidance for similar regions was also developed to assess the land suitability, establish an integrated defense system of the national territory and space, and exercise resilient city planning.</div></div>","PeriodicalId":54616,"journal":{"name":"Physics and Chemistry of the Earth","volume":"137 ","pages":"Article 103818"},"PeriodicalIF":3.0,"publicationDate":"2024-11-23","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142723604","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"地球科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Improvability of quality main indices of a marl soil using endemic microorganisms","authors":"Atefeh Jafarpoor ,&nbsp;Seyed Hamidreza Sadeghi ,&nbsp;Mehdi Homaee ,&nbsp;Behrouz Zarei Darki","doi":"10.1016/j.pce.2024.103812","DOIUrl":"10.1016/j.pce.2024.103812","url":null,"abstract":"<div><div>Biological soil crusts are essential for ecosystem productivity in arid and semiarid regions, where cyanobacteria (Cy) and bacteria (Ba) are pivotal. These microorganisms enhance nutritional conditions, soil stability, soil fertility, and forage quality through the secretion of polysaccharides. However, there is a lack of comprehensive quantitative studies addressing the changes in soil's physical and chemical properties. This research investigated the impact of individual and combined inoculations of Cy and Ba on the rangeland quality of low-quality soil in the Marzanabad region. The indicators of soil quality assessed included carbon (C) content, nitrogen (N) levels, C/N ratio, soil-available phosphorus (P), and aggregate stability. The findings indicated that microbial inoculation significantly (p &lt; 0.01) affected N concentration, available P, and aggregate stability. Additionally, the individual and combined treatments of Cy and Ba resulted in increases in C content of 57.14%, 297.14%, and 120%, respectively, compared to the control. The N concentration in these treatments was 150%, 37.50%, and 325% higher than that of the control soil. In terms of absorbable P, increases of 105.48%, 6.54%, and 39.57% were observed compared to the control conditions. Furthermore, the superficial inoculation of microorganisms enhanced aggregation adhesion, with stability in the individual and combined Cy and Ba treatments increasing by 29.20%, 61.65%, and 42.11%, respectively, relative to the control treatment. The results of this study suggest that utilizing soil microorganisms to restore plant cover in arid and semiarid regions is a viable strategy.</div></div>","PeriodicalId":54616,"journal":{"name":"Physics and Chemistry of the Earth","volume":"137 ","pages":"Article 103812"},"PeriodicalIF":3.0,"publicationDate":"2024-11-16","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142705048","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"地球科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Development of multi-objective Harris hawks optimization (MOHHO) algorithm in low-impact development systems considering the effects of climate change","authors":"Manizheh Pourali Dougaheh ,&nbsp;Parisa-Sadat Ashofteh","doi":"10.1016/j.pce.2024.103816","DOIUrl":"10.1016/j.pce.2024.103816","url":null,"abstract":"<div><div>In this research, to control and manage basin runoff by using Low-Impact Development (LID) systems in climate change conditions, a simulator-optimizer model is developed using the SWMM model and the MOHHO algorithm. Four LIDs of vegetative swale, bio-retention cell, permeable pavement, and infiltration trench have been used. Therefore, the areas of LIDs are determined in the sub-basins of Zone 1 and 3 of Tehran Municipality for the periods of the baseline (1988–2005), the near future (2030–2047), and the far future (2048–2065), with the objectives of (1) minimizing the cost of implementing and maintaining LIDs, (2) minimizing the amount of outflow runoff of the basin. In this research, the future rainfall under three emission scenarios RCP2.6, RCP4.5, and RCP8.5 has been simulated. By comparing the convergence diagram of MOHHO with the NSGAII algorithm, it was observed that the MOHHO has more dispersion of solutions and less run-time. Finally, with the help of this model, optimal management solutions were obtained in the form of the Pareto front. The results show that the flood volume was reduced by 50% on average compared to not using the system, considering the objective function of minimizing the outflow flood volume of the basin. But this value is reduced by 30% by giving importance to the second objective function, which is to minimize costs. Finally, due to the reduction of cost and economic efficiency, the implementation and use of these systems can be justified and have a significant effect in reducing the problems of the region.</div></div>","PeriodicalId":54616,"journal":{"name":"Physics and Chemistry of the Earth","volume":"137 ","pages":"Article 103816"},"PeriodicalIF":3.0,"publicationDate":"2024-11-16","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142705050","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"地球科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Adsorption of hexavalent chromium from wastewater using magnetic biochar derived from peanut hulls","authors":"Lehlogonolo Tabana,&nbsp;Annita Kupa,&nbsp;Shepherd Tichapondwa","doi":"10.1016/j.pce.2024.103815","DOIUrl":"10.1016/j.pce.2024.103815","url":null,"abstract":"<div><div>In this study, the utilization of peanut hulls as a precursor for the preparation of magnetic biochar through pyrolysis was investigated. To enhance the magnetic and adsorption properties of the biochar, the peanut hulls biomass was modified using ferric chloride hexahydrate and magnesium chloride hexahydrate. Response surface methodology was employed to evaluate the influence of biomass metal concentration, pyrolysis temperature, pyrolysis period and flow of nitrogen on the yield and Cr (VI) adsorption efficiency of the synthesized biochar. A 17-run experimental matrix was generated using Optimal Design to investigate the interactions among four input parameters. The results led to the development of a quadratic model, which demonstrated a high degree of predictability in accordance with the experimental data. Analysis of variance (ANOVA) confirmed that the models for yield and Cr (VI) adsorption efficiency were highly significant (p &lt; 0.05), with coefficients of determination (R²) values of 0.891 and 0.988, respectively. The optimal synthesis conditions for producing biochar with superior physicochemical properties were identified as a pyrolysis temperature of 300 °C, a pyrolysis duration of 2 h, a metal-to-biomass ratio of 0.5, and a constant flow of nitrogen. A desirability of 85% was achieved through numerical optimization, corresponding to a yield of 63% and complete Cr (VI) removal. Further optimization of Cr (VI) adsorption efficiency, considering the effects of pH (3–12), adsorbent loading (1–15 g/L), and initial Cr (VI) concentration (5–20 mg/L), was performed using a 19-run experimental matrix. ANOVA for Cr (VI) adsorption efficiency model revealed high significance (p &lt; 0.05) with an R² value of 0.916.</div><div>The magnetic biochar demonstrated a remarkable adsorption efficiency of 98% under the experimental conditions of solution pH 3, adsorbent dosage of 5 g/L, and an initial Cr (VI) concentration of 20 mg/L. The desirability of 100% was obtained by a numerical optimization method representing Cr (VI) removal of 98%. The adsorption behaviour was adequately described by the Freundlich isotherm model, suggesting multilayer adsorption, with a maximum adsorption capacity of 12 mg/g. Biochar also proved to have strong magnetic properties which enhanced solid-liquid separation post adsorption experiments.</div></div>","PeriodicalId":54616,"journal":{"name":"Physics and Chemistry of the Earth","volume":"137 ","pages":"Article 103815"},"PeriodicalIF":3.0,"publicationDate":"2024-11-16","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142705045","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"地球科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Assessing the impact of coal furnace activities on air quality: A comprehensive spatial and temporal analysis","authors":"Marzieh Mokarram,&nbsp;Ebrahim Rastegar","doi":"10.1016/j.pce.2024.103811","DOIUrl":"10.1016/j.pce.2024.103811","url":null,"abstract":"<div><div>Air pollution is a critical threat to public health and environmental systems, primarily driven by industrial activities such as coal furnace operations. This study uses advanced spatial analysis techniques, including kriging and Principal Component Analysis (PCA), to assess the impact of these activities on air quality in a designated study area. The Air Quality Index (AQI) is also employed to evaluate air quality in this research. Additionally, five key variables—number of households, coal furnaces, average income, average cost, and AQI—are normalized using the MinMaxScaler for comparative analysis. Also, the results indicate that the southern and western regions of the study area have the highest pollutant concentrations, correlating with high AQI values and the density of coal furnaces and industrial activities. The PCA results show that urban areas are mainly affected by CO₂ and SO₂, significantly influencing the AQI, while agricultural land and other types of land (rangeland, forest, dryland, barren land) show varying dominant pollutants. Agricultural lands were found to be primarily impacted by SO₂, CO₂, and CO. In addition, a temporal analysis reveals a 10% annual increase in coal furnace operations from 2003 to 2024, contributing to the rise in pollution levels. The AQI optimization results also indicate a strong negative correlation between the number of coal furnaces and AQI, suggesting that reducing the number of coal furnaces can lower air pollution levels. These findings highlight the significant role of industrial emissions in worsening air quality and emphasize the need for cleaner technologies, reduced coal furnace usage, and stronger regulatory measures.</div></div>","PeriodicalId":54616,"journal":{"name":"Physics and Chemistry of the Earth","volume":"137 ","pages":"Article 103811"},"PeriodicalIF":3.0,"publicationDate":"2024-11-16","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142705046","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"地球科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Development and evaluation of site-specific evapotranspiration models in Malawi through a comparative analysis of existing models","authors":"Grivin Chipula ,&nbsp;Vitumbiko Moyo ,&nbsp;Thomas Nyanda Reuben ,&nbsp;Lameck Fiwa ,&nbsp;Mwabuke Nkhata ,&nbsp;Horace Phiri ,&nbsp;Isaac Fandika","doi":"10.1016/j.pce.2024.103814","DOIUrl":"10.1016/j.pce.2024.103814","url":null,"abstract":"<div><div>Locally based information on reference evapotranspiration pertinent to efficient irrigation water management is scarce in developing countries. This compromises the accuracy in determining irrigation crop water requirements since most existing reference evapotranspiration models are empirically based and less accurate unless calibrated to local conditions. The FAO Penman-Monteith equation has been proven to estimate reference evapotranspiration for different environments worldwide. However, its intensive data input requirements impede utilization of the model in developing countries due to inadequate climate data collection and management capacities. Therefore, a need existed to develop site-specific models that are less data intensive. A study was conducted aimed at developing site-specific evapotranspiration models using comparative analysis of the Kharrufa, Linacre, Hargreaves Original and Hargreaves Modified empirical models during the wet and dry season. Performance of each model was compared with the FAO Penman-Monteith model, regarded as the standard model. The models whose Root Mean Square Error (RMSE), Mean Bias Error (MBE) and coefficient of determination (R²) were satisfactory were selected. The selected models were developed statistically through regression analysis. Performance of the Kharrufa model was satisfactory comparatively as observed from its RMSEs of 1.02 mm/day and MBE -0.34 to 0.8 for the dry season. However, the model less accurately estimated reference evapotranspiration during the wet season (RMSE 2.18 mm/day and MBE 1.03 to 2.13). The study recommends the use of the Kharrufa model in the study locations in dry seasons while utilization in wet season may require further studies to ascertain the model's useability and reliability.</div></div>","PeriodicalId":54616,"journal":{"name":"Physics and Chemistry of the Earth","volume":"137 ","pages":"Article 103814"},"PeriodicalIF":3.0,"publicationDate":"2024-11-16","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142705044","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"地球科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Assessing land-use/land-cover influence on surface water quality using a weighted inverse distance function in Bangweulu sub-catchment area, Zambia","authors":"Misheck Lesa Chundu,&nbsp;Kawawa Banda,&nbsp;Henry M. Sichingabula,&nbsp;Imasiku A. Nyambe","doi":"10.1016/j.pce.2024.103813","DOIUrl":"10.1016/j.pce.2024.103813","url":null,"abstract":"<div><div>Water quality is crucial for human health and aquatic ecosystems, and understanding the relationship between land use/land cover (LULC) and water quality is essential as urban and industrial growth expands. This study aimed to investigate the influence of LULC on specific water quality parameters, establish the Water Quality Index (WQI) for 34 sampling points, and assess the impact of LULC on the WQI. The study used parametric weighted distance function where the weighted inverse distance function (WIDF) was used in determining the contamination effective contribution area (Aec) for each LULC type of a particular location using Landsat 2020 classified image and 30 m DEM. The results showed a wide range of WQI values, with several significant correlations between LULC and water quality. Turbidity, total dissolved solids (TDS), iron (Fe²+), and electrical conductivity (EC) showed strong correlations with LULC (R² &gt; 0.7). Turbidity and Fe²⁺ were more correlated with built-up and forested areas (p-Value &lt;0.05), respectively. Whereas, TDS and EC were more correlated with cropland (p-Value &lt;0.05). The feacal coliform showed a weak correlation with LULC (R² = 0.258), but had a significant correlation with built-up areas (p-Value &lt;0.05). The WQI had a reasonable correlation with LULC (R² = 0.649). Understanding these relationships could improve decision-making on land use planning and water quality management, predict river water quality, and shape sustainable LULC policies. This information could also help identify hotspots of potential water quality degradation and pinpoint areas for targeted interventions and restoration efforts.</div></div>","PeriodicalId":54616,"journal":{"name":"Physics and Chemistry of the Earth","volume":"137 ","pages":"Article 103813"},"PeriodicalIF":3.0,"publicationDate":"2024-11-16","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142705093","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"地球科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Mechanical performance of cement concrete with use of combined fibers of basalt and bamboo","authors":"Sachin Kumar,&nbsp;Umesh Sharma","doi":"10.1016/j.pce.2024.103799","DOIUrl":"10.1016/j.pce.2024.103799","url":null,"abstract":"<div><div>This investigation utilized the combined blend of basalt and bamboo fibers as an additive in concrete, with the fibers being added based on the weight of the cement. The performances of concrete on the aforementioned fibers were compared based on mechanical parameters. The specimens were matured for 7, 28, and 90 days. It was observed that the inclusion of BFBM (basalt fiber and bamboo fiber) into HFRC (Hybrid fiber-reinforced concrete) resulted in a 17.11% increase in compressive strength (CS) after 28 days of maturing when the BFBM dose was 2.0%. Utilizing BFBM to analyze the flexural strength (FS) parameter led to a significant enhancement in FS. At a dosage of 1.5%, the FS increased by 100% after 7 days of curing, while at a dosage of 2% after 28 days of maturing, the FS increased by 52.98% compared to concrete. The UPV Test verified the presence of a uniform concrete mixture. Examination of data using SPSS software was done to perform regression analysis, factor analysis, and principal component analysis. The regression analysis revealed statistically significant associations between the dosage, maturing age, and mechanical characteristics of concrete. The factor analysis showed an efficient consolidation of the three variables into a single component, which accounted for 88.08% of the variation. The Kaiser-Meyer-Olkin (KMO) measure validated the sufficiency of the sample, whereas Bartlett’s test revealed the presence of sphericity. The results indicate that the dosage amount and the length of time for curing have compelling impact on the strength qualities of the concrete.</div></div>","PeriodicalId":54616,"journal":{"name":"Physics and Chemistry of the Earth","volume":"137 ","pages":"Article 103799"},"PeriodicalIF":3.0,"publicationDate":"2024-11-15","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142705049","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"地球科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Analysis of the impacts of coal mining on baseflow changes under the Budyko framework: A case study of Northern Shaanxi, China","authors":"Fangbing Xu ,&nbsp;Xiaohui Jiang ,&nbsp;Lin Zhang ,&nbsp;Nuo Chen","doi":"10.1016/j.pce.2024.103810","DOIUrl":"10.1016/j.pce.2024.103810","url":null,"abstract":"<div><div>Coal mining alters the regional and local hydrogeological conditions and subsurface parameters, significantly impacting the hydrological cycle. Baseflow is particularly sensitive to changes in subsurface parameters and hydrogeological conditions. Therefore, studying the impact of coal mining on baseflow is crucial for understanding its effects on the water cycle. In this paper, 9 segmentation methods are used to separate the baseflow, after the applicability analysis, the Chapman-Maxwell and Boughton-Chapman separation methods were used. The Mann-Kendall and Pettitt tests are employed to determine the mutation years of baseflow. Finally, within the Budyko framework, the elasticity coefficient is calculated to estimate the changes in baseflow attributed to variations in precipitation, potential evapotranspiration, and underlying surface index. The results indicate that: (1) Based on the comparison of results and error analysis, we conclude that the Chapman-Maxwell separation method and the Boughton-Chapman separation method are the most suitable for the typical basins in the Shaanxi mining area. (2) During the study period, baseflow experienced a mutation in the late 1990s and showed an overall declining trend. (3) There is spatial heterogeneity in the influence of coal mining activities on baseflow, which has a negative impact. The change of base flow after mutation is −2.86 × 10⁸ m³.</div></div>","PeriodicalId":54616,"journal":{"name":"Physics and Chemistry of the Earth","volume":"137 ","pages":"Article 103810"},"PeriodicalIF":3.0,"publicationDate":"2024-11-12","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142657412","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"地球科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Looking back to look forward: Explorations on water scenario in Bundelkhand, Central India","authors":"Saurabh Sharma ,&nbsp;Jenia Mukherjee ,&nbsp;Uday Chatterjee ,&nbsp;Anuradha Choudry","doi":"10.1016/j.pce.2024.103805","DOIUrl":"10.1016/j.pce.2024.103805","url":null,"abstract":"<div><div>At present, India is suffering from the worst water crisis in its history, and millions of lives and livelihoods are under threat. As per NITI Aayog's Water Index Report (2018), 40% of the population will have no access to drinking water by 2030. A 2016 report by Down To Earth (DTE) stated that 116,000 water harvesting structures were constructed between 2006 and 2015, and 15,000 crore rupees were spent on drought-proofing measures in Bundelkhand, Central India. Still, the region had 15th consecutive crop loss and 13 droughts in the past 15 years. Water historians like Elizabeth Whitcombe, Rohan D'Souza, and others have demonstrated how British imperialism led to the replacement of traditional water harvesting structures and systems, severely altering existing water-society relationships. On the contrary, Ian Stone, David Mosse, and Esha Shah argued that the ‘pre-colonial equilibrium’ versus ‘colonial hydrology’ framework is an exaggeration. Within this context, the research reveals the tangled roots of various causes and variables, and practically informing policy circles to tackle contemporary water issues and challenges and achieve SDG 6: Clean Water and Sanitation.</div></div>","PeriodicalId":54616,"journal":{"name":"Physics and Chemistry of the Earth","volume":"137 ","pages":"Article 103805"},"PeriodicalIF":3.0,"publicationDate":"2024-11-10","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142705092","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"地球科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}