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Copyright of Society: Chinese Journal of Sociology / Shehui is the property of Society: Chinese Journal of Sociology and its content may not be copied or emailed to multiple sites or posted to a listserv without the copyright holder's express written permission. However, users may print, download, or email articles for individual use. This abstract may be abridged. No warranty is given about the accuracy of the copy. Users should refer to the original published version of the material for the full abstract. (Copyright applies to all Abstracts.)

This paper presents a framework for interpreting regional features of houses in the Tibetan-Qiang region by Deep Learning (DL) and Image Landscape (IL), which learns the typical features from online building photos in different subordinate areas of the whole region through a set of datasets and DL models. The contribution of this framework is taking online building images as a proxy of rural building characteristics, which significantly improves the scope and efficiency of related built heritage studies and accurately reveals the representative features of houses in remote rural areas. The results are validated by established studies, and the framework can be transferred to other regions through the provided path and openly published datasets.

This study investigated the impact of three ecological restoration methods: PRS, OLRS, and NRM, on the soil quality and ecological environment of the cold plateau area in northwest Sichuan, China. Over a period of 3 years, these restoration modes were applied, and their effects on soil enzyme activity, organic carbon, and nitrogen were critically analyzed. The results demonstrated that PRS was the most effective restoration method, enhancing soil water content, organic activity, and enzyme content the most, followed by OLRS and NRM, respectively. In the 0~60 cm soil layer, each restoration model was able to improve the vegetation characteristics, and the modification effects were PRS > ORRS > NRM > UMD in descending order. After the restoration, the summer surface temperature decreased from 41.3 °C to 23.1 °C. The average moisture content of the soil increased from 3.11% to 5.86%. The average moisture content of the soil increased from 3.11% to 5.86%, and the bulk density decreased from 1.47 g/m3 to 1.40 g/m3, resulting in a more rational soil structure. This research offers invaluable insights into the nutrient restoration mechanism of sandy lands, emphasizing the significant role of appropriate vegetation restoration measures in ecological restoration. The findings further suggest the potential application of the PRS model for optimal soil repair effects in similar ecological settings. [ABSTRACT FROM AUTHOR]

In order to clarify the distribution characteristics of tight reservoirs in the Upper Triassic Xujiahe Formation in the northern part of the Western Sichuan Depression, we obtained reservoir sedimentary microfacies types and mineral composition characteristics by core description, logging interpretation and X-ray diffraction mineral analysis, combined with the diagenesis obtained from the rock thin section and field emission scanning electron microscopy observation, pore permeability and mercury injection test and the analysis results of the reservoir pore structure, and carried out a study on the factors influencing the tightness of reservoirs in the Member 2 of the Xujiahe Formation. A comprehensive classification evaluation standard was established for the reservoirs Member 2 of the Xujiahe Formation in Northwest Sichuan. The result shows that the main reason for the development of tight reservoirs in the Member 2 of the Xujiahe Formation is that the reservoir porosity is controlled by lithology, and the differences in mineral components make the sandstone in the Member 2 of the Xujiahe Formation characterized by strong cementation, moderate compaction and weak fracture. The study results provide a basis for the screening of favorable sites for the development of tight reservoirs in this area and the favorable target areas for further exploration of tight gas reservoirs. [ABSTRACT FROM AUTHOR]

Integrated rural environmental and socio-economic development (IDRES) refers to the strategic vision of ecological civilization, in order to deeply anchor in the unique socio-cultural and ecological system. A delicate balance can be required to determine the natural confines of the environment and resources for optimal human-centric concepts. The guiding line can also be involved to respect the environmental thresholds and champion human-led innovations using either adaptive strategies or directly addressing developmental constraints. Various decision-making tools have been tailored for varied scenarios. Among them, the TOPSIS and VIKOR methods have presented positive performance across multiple disciplines in the field test, particularly in the specific context of IDRES, due to their better computation and objectivity. It is necessary for a full comprehensive evaluation during this time. Taking Wenchuan County in northwest Sichuan as a study area, an evaluation framework was proposed to characterize the ecological vulnerability with the strategic importance. This matrix was intricately woven into the ecological dynamics with societal implications for the high precision of game theory combination weighting. The twin prisms of TOPSIS and VIKOR were then utilized to dissect the IDRES landscape, in order to potentially catalyze the ecological renaissance. Several implications were obtained: 1) The VIKOR offered an edge over the TOPSIS, due to the intrinsic depth and inclusiveness. The overarching group objectives were harmonized with the nuances of individual challenges, thus exceptionally tailoring for the holistic IDRES evaluations. 2) The IDRES profile was clear behind the VIKOR. Spatial delineations of the villages were seamlessly connected from the northwest, and then cut through the central heartland into the southeast. By contrast, the dominant challenge of villages was pepper production in the northeastern and south-central terrains. 3) The TOPSIS presented a much more promising potential, indicating the IDRES progress on a moderate platform. Interestingly, the spatial patterns were identified in the high-performing villages, fully meeting the insights from the VIKOR. 4) The assessment also demonstrated that the VIKOR approach was better suitable for the disparities across different village evaluations. Nevertheless, the TOPSIS was possible to introduce some anomalies with the "reverse order" behavior, especially without considering the relative importance of ideal solutions. The outstanding differences between TOPSIS and VIKOR methods can greatly contribute to exemplary integrated development. 5) The individual challenges were dissected to identify the twin anchors of IDRES trajectory for ecological stewardship and villagers' self-governance. Therefore, the autonomy of villagers can serve as one of the most essential elements in the robust IDRES journey, with no emphasis on just a footnote. This exploration can be used to clarify the method preferences suitable for the subtle rural evaluations, particularly for the strategic blueprint for rural ecological revitalization. This roadmap can be expected for the empowerment and autonomy of villagers in sustainable progress. [ABSTRACT FROM AUTHOR]

Copyright of Acta Prataculturae Sinica is the property of Acta Prataculturae Sinica Editorial Office and its content may not be copied or emailed to multiple sites or posted to a listserv without the copyright holder's express written permission. However, users may print, download, or email articles for individual use. This abstract may be abridged. No warranty is given about the accuracy of the copy. Users should refer to the original published version of the material for the full abstract. (Copyright applies to all Abstracts.)

The Lower Permian is rich in natural gas resources in the northwestern Sichuan Basin of China. However, the cause and source of natural gas are still unclear. In this paper, core observation and thin slice identification under the microscope. The geochemical characteristics of the study area are combined. The biomarker characteristics of the reservoir and source rock in the study area are combined to determine the genesis of Lower Permian natural gas. The results show that (1) according to the Hewanchang natural gas He and CO2 content combined with ln(C1/C2) and ln(C2/C3) intersection diagrams. By comparison, it is found that the natural gas in the Hewanchang structure is a typical crude oil cracked gas; (2) only a small amount of asphalt was found in the Lower Permian in the Hewanchang structure. It shows that the scale of crude oil cracking is not large. Less crude oil cracked gas is produced. However, large-scale pitch veins have been discovered in the Cambrian in northwestern Sichuan. It shows that large-scale crude oil cracking occurred in Cambrian reservoirs; (3) the biomarker characteristics of the extracts from the Lower Permian reservoirs are similar to those of the Lower Permian source rocks. It shows that the bitumen in the Lower Permian reservoir is formed by the cracking of the Lower Permian crude oil. The late structural adjustment resulted in the Hewanchang natural gas reservoir being formed by a large amount of Cambrian formation crude oil cracked gas and a small amount of Lower Permian crude oil cracked gas. [ABSTRACT FROM AUTHOR]

In order to explore the geochemical charactesistics, origin and geological significance of solid bitumen in Tianjingshan Paleo-uplift in Northwest Sichuan, 20 outcrop bitumen samples of Cambrian, Devonian and Permian in this area were collected, and the experimental analysis of solid bitumen group Composition, biomarkers and carbon isotope were carried out. Combined with tectonic evolution history, the dynamic evolution formation mechanism of bitumen in the study area was established. The results show that the solid bitumen in Tianjingshan Paleo-uplift was formed by the serious biodegradation of the paleo reservoir. The Cambrian and Devonian bitumen sourced from the source rock of the Qiongzhuri Formation, and the Permian bitumen sourced from the mixture of the Qiongzhuri Formation and the Permian source rocks. The outcrop bitumen of multilayer system proves that the Tianjingshan Paleo uplift experienced a large area of paleo-oil accumulation, and the favorable exploration target of paleo-oil reservoir in this block is the wing with good bitumen sealing and preservation conditions. This study provides guidance for the next exploration and development of Tianjingshan Structure in Northwest Sichuan, and also provides reference for the study of bitumen formation and oil and gas evolution in similar areas with complex tectonic evolution. [ABSTRACT FROM AUTHOR]

Recently desertification of Alpine-cold semi-humid grassland has become increasingly serious on the eastern edge of the Qinghai-Tibet plateau. However, the restoration and control of desertified land in these areas have not received enough attention as in arid and semi-arid areas, and little is known about the vegetation community and soil microbiological properties during the ecological restoration in Alpine-cold semi-humid desertified areas. In this paper, the method of fencing, removing grazing and planting Tamarix ramosissima was taken as the measure for ecological restoration of Alpine-cold desertified land in Northwest Sichuan. The results showed ecological restoration resulted in significant improvement in the height, coverage, density, biomass, and diversity of vegetation communities, numbers of soil microorganisms (including bacteria, actinomycetes and fungi). Microbial biomass carbon and nitrogen, and urease, invertase and protease activities increased after the restoration, especially in the 0–20 cm layer. These trends increased with increasing restoration age but decreased with increasing soil depth. Ecological restoration by fencing, non-grazing and planting T. ramosissima is therefore considered an effective and applicable measure to restore vegetation and soil microbiological properties and control desertification in the Northwest Sichuan, and is recommended for adoption in Alpine-cold semi-humid sandy areas on a large scale. [ABSTRACT FROM AUTHOR]

Tagong area of Northwest Sichuan is located in the east of Qinghai-Tibet Plateau, and belongs to the southeast margin of Songpan-Ganzi orogenic belt. The quartz diorites in Tagong area form in Early Cretaceous with K-Ar isotopic ages of 134-136 Ma, and emplace into Late Triassic strata. Mass fractions of SiO2 are 61.37%-62.25%, A/CNK values are 0.93-0.95, mass fractions of total alkali are 5.46%-5.77%, Rittmann indexes are 1.62-1.74, so that the samples belong to subalkaline metaperaluminous high-K calc-alkaline series quartz diorites. The rocks have relative high Mg# values with the isotopic geochemical characteristics of high contents of Sr and low contents of Nd. N(87Sr)/N(86Sr) is 0.712 589-0.713 009 with the initial N(87Sr)/N(86Sr) of 0.709 503-0.709 878, N(143Nd)/N(144Nd) is 0.512 135-0.512 196 with negative εNd(t) of -8.6--7.5; Nd and Hf model ages are 1.33-1.41 Ga and 1.13-1.37 Ga, respectively. The quartz diorites belong to undifferentiation I-type granitoids with late- to post-collision caused by partial melting of ancient lower crust mafic materials at the continental margin-intercontinental orogenic setting in Northwest Sichuan. [ABSTRACT FROM AUTHOR]

The ultra-deep dolomite reservoir of the Permian Qixia Formation in northwest Sichuan is important for hydrocarbon reservoirs, but the mechanism of dolomite genesis is complex and has long been controversial, thus requiring further elucidation. By studying the dolomite with different types in the Permian Qixia Formation, northwest Sichuan Basin, this paper, based on outcrop sections observation and core description, seeks to find out the dolomitizing fluids' source and the dolomite's genetic mechanism by analyzing the dolomite's rock-mineral and geochemical characteristics. Various technologies are applied, including rock thin section observation, cathode luminescence, carbon and oxygen isotope analyses, laser ablation-inductively coupled plasma-mass spectrometry (LA-ICP-MS), and inclusion homogenization temperature and salinity. Results show that the dolomite is mainly classified into silty-fine dolomite (Md1), fine-medium dolomite (Md2), medium-coarse dolomite (Md3), and saddle dolomite (SD) filled in the pores. Md1 is formed in the early shallow-burial stage; the dolomitizing fluids are mainly derived from the early seawater sealed in carbonate sediments; and the penesaline seawater is formed by the seepage reflux under a moderate evaporitic environment. Md2 and Md3 are formed in the middle and late shallow-burial stages. Of these two types, Md2 is formed earlier, and the dolomitizing fluids are primarily derived from the seawater sealed in the early stage and partially derived from the residual evaporated seawater and hydrothermal fluids. In contrast, Md3 is formed later, and the dolomitizing fluids are the mixture of the seawater sealed in the early stage and the hydrothermal fluids formed in the late stage. In addition, Md3 was affected by the hydrothermal process more significantly during the formation. SD is deposited and formed when the saturated hydrotherm upwells along with the fracture system in the late stage. This study provides a significant reference for understanding the source and action mechanism of multi-stage dolomitizing fluids and expands the exploration field of the deep dolomite reservoir. • The precise microanalysis is conducted on the dolomite of different grain sizes by the LA-ICP-MS technology. • The geochemical characteristics of dolomites show the trend of continuous and progressive. • Dolomite fluids come from the normal seawater, penesaline seawater. and hydrothermal fluids. [ABSTRACT FROM AUTHOR]

Studies on the soil-geological transects at gold mining areas in northwest Sichuan show that the distribution of soil Bacillus cereus spore counts can indicate the underlying gold mineralization. The anomalies of spore counts flanked the subsurface orebodies while low spore counts occurred right in soils above the outcrops of the orebodies. This microbial exploration technique has the potential to be employed at promising exploration areas or mining areas. Non-mineralization factors such as soil types strongly influence the spore number, which leads to varied background values at different mining areas. Application of this bio-method in regional exploration awaits the establishment of background database of B. cereus spore numbers at different soil environments. [ABSTRACT FROM AUTHOR]