Dominant Category Research Articles

Secularity, Sociology, and the Contemporary History of Islam

This essay proposes to reframe the twentieth-century history of Islam by rethinking the relationship of that history to some dominant categories of twentieth-century sociology, especially the secularization thesis. The global history of Islam since the late nineteenth century has been shaped by an apparent paradox between its two most significant features. The first of these has consisted of persistent calls for Muslim revival, reform, and unity across the world, tending toward a unification or transcendence of the older forms of variation within the tradition. The second, countervailing tendency has been an increasing fragmentation of structures of authority within the tradition, a proliferation of the meanings attributed to it and of the forms of practice taken to embody it, and a renewed acuity of internal sectarian conflict. This is a paradox that only an understanding of Islam as social practice embedded in the forms of secularity characteristic of modern societies—and emphatically not one of Islam as “medievally” religious and uniquely “secularization-resistant”—can apprehend.

Christian leaders as salt and light in realizing religious moderation in Banyumas Regency

This study aimed to determine the level of implementation of the salt of the earth and the light of the world, the most dominant dimensions and backgrounds that influence the level of implementation of the salt of the earth and the light of the world based on Matthew 5:13-16, in order to realize religious moderation for the administrators of the Interfaith Harmony Forum (FKUB) and Christian Leaders in Banyumas Regency. From the results of the pre-survey, indications were found that there are still Christian leaders who have not implemented the salt of the earth and the light of the world. This study uses a quantitative method, by measuring Two Dimensions (D) in the concept of implementing the salt of the earth and the light of the world based on Matthew 5:13-16. The results of the study show that first, the level of implementation of the salt of the earth and the light of the world is in the moderate category. Second, the most dominant dimension is becoming the Light of the World (D2). The third dominant background category is the Length of Time as an Administrator / Serving (I10). Therefore, the level of implementation of the salt of the earth and the light of the world among the administrators of the Interfaith Harmony Forum (FKUB) and Christian leaders in order to realize religious moderation in Banyumas Regency needs to be increased, so that in the future it can be higher, and produce better quality of religious moderation for Christians and society in Banyumas Regency.

Assessing Alterations of Rainfall Variability Under Climate Change in Zengwen Reservoir Watershed, Southern Taiwan

This study aims to detect changes in rainfall variability caused by climate change for various scenarios in the CMIP6 (Coupled Model Intercomparison Project Phase 6) multi-model ensemble. Projected changes in rainfall unevenness in terms of different timescale indices using three categories, namely WD50 (number of wettest days for half annual rainfall), SI (seasonality index), and DWR (ratio of dry-season to wet-season rainfall) are analyzed in Zengwen Reservoir watershed, southern Taiwan over near future (2021–2040) and midterm future (2041–2060) relative to the baseline period (1995–2014) under SSP2-4.5 and SSP5-8.5 scenarios. The projected rainfall for both baseline and future periods is derived from 25 GCMs (global climate models). The results indicate that noticeably deteriorated rainfall unevenness is projected in the Zengwen Reservoir watershed over future periods, which include decreased WD50, increased SI, and decreased DWR. Though there were noticeable differences in the rainfall projections by the different GCMs, the overall consensus reveals that uncertainties in future rainfall should not be ignored. In addition, WD50 has the greatest deviated relative change in mean, which implies that the short-timescale rainfall unevenness index is easily affected by climate change in the study area. Distributional changes in rainfall unevenness determined by simultaneously considering alterations in relative changes in mean and standard deviation indicated that there was no single dominant category. However, the top two categories, with summed frequencies exceeding 0.5, characterize different properties of rainfall unevenness indices. The top two categories of WD50 and SI commonly have decreased mean and increased mean, respectively, but nearly equal frequencies of the top two categories in DWR exhibit opposite variations. The proposed rainfall unevenness change detection approach provides a better understanding of the impacts of climate change on rainfall unevenness, which is useful for preparing adaptive mitigation measures for coping with disasters induced by climate change.

Study of Salvation based on 1 Peter 3:18-22 among Batak Toba Christians, North Sumatra

Salvation is a very broad subject and very important to understand properly in the Bible. Salvation in Jesus Christ can be responded to by believing in Christ and His work. The understanding of salvation is now understood in universalism, and not a few people or groups have also turned to syncretism. The emergence of many teachers, pastors, and theologians had a great impact on providing different understandings among Christians. Each tribe has a belief in their ancestors, which later becomes a culture or custom. Initially, every Batak culture or custom was inseparable from magical elements. Any rituals or traditional ceremonies performed by certain groups or people are believed to keep them away from danger so that they are fine. But in reality, not a few of them experience the opposite. The initial motivation for getting blessings and safety turns out to be the tribulation or wretchedness that befalls their lives. The purpose of this research is to find out the magnitude of the confirmation of salvation in Jesus Christ. The most dominant dimension determines the confirmation of salvation, and the most dominant background category determines the confirmation of salvation based on 1 Peter 3:18-22 among Batak Toba Christians in Sumatra North. The method used is a quantitative approach using explanatory and confirmatory surveys. Research Results: Confirmation level about salvation based on 1 Peter 3:18-22 is in the high category. The most dominant dimension determining Confirmation about salvation is Preaching the Gospel by Jesus Christ (D3). The dominant background category determining confirmation of safety is age.

Effects of Intercropping of Sisal and Three Different Leguminous Plants on Soil Bacterial Diversity

Intercropping is widely utilised in agricultural production to enhance land use efficiency because of its benefits, such as heightened crop productivity and optimised resource utilisation. We investigated the effects of Pinto peanut/sisal (HST), Stylo/sisal (strT) and Grona styracifolia/sisal (JqT) intercropping systems on soil bacterial communities compared with sisal continuous cropping (CK) by using Illumina MiSeq high-throughput sequencing technology. The intercropping system significantly increased the total nitrogen (TN), soil pH and soil moisture levels and decreased the levels of available phosphorus (AP) and available potassium (AK). Minimal variations were observed in Shannon’s and Simpson’s diversity indices between the monoculture and intercropping systems as well as among different intercropping systems. The most abundant phyla observed within the four groups were Proteobacteria, Acidobacteria, Cyanobacteria and Bacteroidetes. At the phylum level, the relative abundances of Proteobacteria, Acidobacteria, Cyanobacteria and Bacteroidetes were 37.37–54.35%, 10.54–21.21%, 3.46–20.43% and 2.15–5.67%, respectively. Compared with ZCK, StrT, JqT and HST treatments led to higher abundance of Cyanobacteria (from 3.46% to 20.43%, 11.37% and 16.58%, respectively) and Bacteroidetes (from 2.15% to 5.67%, 5.21% and 5.10%, respectively). The results of the linear discriminant analysis of effect sizes demonstrated notable variations in the relative abundance of bacterial taxa among various intercropping systems. The dominant categories of the genus in strT and JqT groups were Blastocatellia and Blastocatellaceae-Subgroup4, while Firmicutes was the dominant category of the genus in the HST group. The structure of bacterial communities did not vary between intercropping and monoculture systems. The findings indicated that the impact of the intercropping system on the bacterial community structure was not contingent on the specific intercropping patterns employed.

Regeneration of Moses' Leadership Based on the Book of Numbers 27:15-23 for GKJW Ministers in the Three Sub-districts of Pacet, Gondang and Dlanggu Mojokerto East Java

The existence of a leader is important in an organization because a leader is a person who can show the way to step, guide, direct the way of members both before and after the business is completed. Numbers 27: 15-23 is a process that should be used as a reference in preparing, selecting, assigning and submitting leaders in the service of God. Numbers 27: 15-17 clearly describes the preparation, selection, appointment and submission of leaders who could head the Israelites to go out and enter the Promised Land. In this case Moses asked God to appoint a leader over God's people, the Israelites, saying: “Let the Lord, The God of the spirit of all creation, appoint over this people a person (verse 16). Regeneration in the leadership of Moses is something very important. Before this regeneration process was carried out, God had first prepared the prospective leader of the Israelites, Joshua. Relation in preparing the servant of God GKJW in three districts Pacet, Gondang and Dlanggu Mojokerto which are considered less important and only focus on Bible study but now there has begun a process of regeneration through the direction of catechization candidates involved in the ministry and further church responsibilities in terms of the election of leaders or ministers of God because in the established procedures that the election is the right and duty of every perform service duties. Another problem faced in the determination of GKJW leaders in the three districts of Pacet, Gondang and Dlanggu Mojokerto is that at the time of the selection of candidates to be appointed as God's servants, more people withdrew than were willing, on the grounds of 1) work that could not be left, 2) Did not have the ability to serve 3). No knowledge of Theology 4. No sense of belonging to the church, so in the process of handing over the leadership is faced with a serious problem, namely the refusal to be a servant of God on the grounds of feeling unable to carry out the task entrusted. Rejection is done by sending a letter to the committee that has been assigned by the church on the grounds of inability or lack of confidence in leading the church. Research Methodology hhis study uses a quantitative approach (positivist) on qualifications in data collection and analysis to test the hypothesis applied. So, in this study found that the dominant background category that determines the confirmation of regeneration in the leadership of Moses based on the book of Numbers 27:15-23 for GKJW servants of God in the three sub-districts of Pacet, Gondang and Dlanggu Mojokerto East Java is the type of service, not education, thus providing uniqueness and novelty in the research process conducted on the research locus.

Mapping the Online Reviews Sentiment Landscape: An Exploration of Emotion Spectrum in User Reviews of Mobile Apps

Mobile applications have emerged as powerful platforms for consumers and understanding the attitudes and reactions of users by content and emotional sides in a mobile context becomes crucial for marketing decision-making. The study with comprehensive approach aims to analyze the emotion spectrum in mobile applications user reviews context by examining specific emotions (anger, disgust, fear, joy, neutral, sadness, surprise). Sentiment analysis methodology (through "Emotion English DistilRoBERTa-base" transformers-model) is employed on the dataset of 302.647 reviews from 34 mobile application categories. Categorical examination of emotions indicates that neutrality is the dominant emotion category, followed by joy, sadness, disgust, surprise, and anger emotion categories, while the fear category is the least dominant category. According to polarity examination; negative polarity reviews are associated with neutral, sadness and disgust emotions; neutral polarity reviews are associated with neutral and sadness; positive polarity reviews are associated with neutral and joy emotion categories. Final part of analysis includes examination of emotions individually and mobile app categories which each emotion with the highest frequency of dominance are presented. The distribution rates of emotions and the individual relationships of emotions with different application categories can shed light on future academic research and marketing decision-making.

Electric light-duty vehicles have decarbonization potential but may not reduce other environmental problems

Electric vehicles are promoted as ‘clean’ technologies and offer promising reductions in transportation emissions. Nevertheless, their environmental benefits critically depend on the local electricity grid mix and the type of emission being considered. Here, we conduct a comparative life cycle assessment of the four dominant light-duty vehicle categories at both the global scale and in three representative countries: Norway, the US, and China. By analyzing different environmental indicators, particularly global warming potential and respiratory effects, and quantifying related parametric uncertainties, we reveal that the advantages of electric vehicles vary across these regions and across environmental impact types. While electric vehicles offer considerable decarbonization potential as the grid mix becomes cleaner, they might not mitigate other environmental impacts, such as increased respiratory effects on rural, low-income communities. Our results support stakeholders in identifying environmentally friendly vehicle and policy options while considering multiple factors, and emphasize the importance of tailored approaches over one-size-fits-all solutions in sustainable transportation.

Evolution characteristics and driving factors of potential non-point source pollution risks in a watershed affected by land use changes

Land use types, land development and utilization intensity within watersheds have changed based on intensifying human activities and climate change, thereby inducing spatiotemporal variations in non-point source pollution (NPS), significantly impacting soil and water quality. This study performed a case study on an ecological environment functional zone at the northern foot of Qinling Mountains, an area strongly affected by human activities and land use changes. It employed an improved potential non-point pollution index (PNPI) model to analyze potential non-point source pollution (PNPS) and associated risk evolution characteristics in watershed over the past 30 years. The results indicate that from 1990 to 2020, the dominant land use categories were forest and arable land, making up 95 % of the entire watershed area. Notably, urban residential land presented the most significant expansion rates and nearly doubled in area between 1990 and 2020, whereas shrubland, grassland, and unused land showed a decreasing trend. With the application of the quantile classification method, PNPS risk values were divided into five categories: very low, low, moderate, high, and very high. A polarized trend in risk was observed, with increases in areas influenced by human activities and rapid expansion of very high-risk regions. Concurrently, the pollution risk in the upstream water source area decreased. In recent years, accelerated urbanization has been the main driver causing expansion of high PNPS risk regions. This study explores the spatial and temporal evolution of PNPS risk in the Heihe Basin by using an improved PNPI model. The improved model is more accurate in calculations and provides a better understanding of the distribution of PNPS, which is an important reference for watershed management and water resource governance.

Data-Driven Insights into the Contamination of Polycyclic Aromatic Hydrocarbons in Marine Bays.

The synthesis of polycyclic aromatic hydrocarbon (PAH) data allows us to quantify and gain insights into the spatiotemporal dynamics of PAH contamination in marine bays. Here, a data synthesis framework was developed to understand data-driven insights into the spatiotemporal levels, compositional profiles, and potential sources of PAHs in water and sediment of marine bays. PAHs were detected in 69 bays worldwide, with contamination hotspots located in Asian bays. PAH concentrations in pre-2000 were significantly lower than those in the 2000s and post-2010, while the dominant species in water and sediment were 2-3 ring and 4-6 ring PAHs, respectively. The composition patterns of PAHs included 2-3 ring, 3-5 ring, and 4-5 ring dominant categories, but no significant distance decay relationship was found in the composition similarity due to international energy trade. Temporal dynamic patterns of concentrations included Descending-, Ascending-, and Inverted V-type, whereas over longer time spans, the pattern is more similar to the Inverted V-type owing to the reductions in emission intensity. PAHs were derived from both petrogenic and pyrolytic sources, with combustion from both coal and petroleum being the dominant source. These data-driven discoveries provide quantitative insights into the spatiotemporal patterns in the concentration and composition of PAHs, contributing to the mitigation of PAH contamination.

Topic Clusters of Successful Aging Studies: Results of a Topic Modeling Approach.

Literature regarding successful aging reflects a wide variety of fields and perspectives. Given the range of definitions and approaches found in published literature, it is important to investigate clusters of topics studied over time. This study aimed to show the change of topic clusters within successful aging studies. The study used topic modeling methodology to analyze vast amounts of abstract data. Among publications collected from Scopus (4,458) and Web of Science (5,187), 5,610 publications were analyzed. Topic clusters were analyzed in two ways: by a) division of time (1960s - 1990s, 2000s, 2010s, 2020s) and b) all years combined. In the 1960s - 1990s, 11 topic clusters ranging from health to emotional well-being emerged without any dominant domain. In the 2000s, two clusters related to social support and health appeared as major clusters. In the 2010s, one topic cluster that included words related to health and social participation was the biggest. In the 2020s, emotional health and social participation appeared again as one of the major clusters and health-related topics started to diverge into subgroups like physical health and mental health. In all years of publications combined, the major cluster involved words that are related to either health or social domains. Results revealed that successful aging has been studied in many fields using multidimensional perspectives. The dominant categories were health and social domains. These findings suggest interprofessional practice, an interdisciplinary approach in research, and multi-sector involvement in policy.

Replicating business cycles and asset returns with sentiment and low risk aversion

I solve for the sequences of shocks (or wedges) that allow a standard real business cycle model to exactly replicate the quarterly time paths of U.S. macroeconomic variables and asset returns since 1960. The resulting shock sequences can be grouped into three main categories: (1) shocks that affect household sentiment and preferences, (2) shocks that appear in the law of motion for capital, and (3) shocks that appear in the production function for output. For most variables including output, no single shock category is clearly dominant in explaining the observed movements in U.S. data. While some variables are driven by a single dominant shock category, the dominant category is different for each of those variables. The results imply that there is no “most important shock.” Rather, U.S. economic outcomes have been shaped by a complex and time-varying mixture of fundamental and non-fundamental disturbances.

Diet and trophic structure of fishes in the Barents Sea: Effects of size within (ontogenetic) and between species

A large data set on stomach content (over 27,000 individual fish) – collected in the Barents Sea in 2015 – was used to examine ontogenetic and interspecific changes in diet with size for 35 fish species. The analysis combined the use of hierarchical clustering and random forest. Two different diet metrics were used (% weight of prey types per weight of stomach content or per weight of fish, the latter reflecting also feeding intensity), and data were analysed based on average diet of predator groups (species and size groups) across the entire sample series (from the whole Barents Sea in different seasons), or for data broken down by geographical areas and seasons. Similar trophic groups (clusters) were identified for the various data sets suggesting that the results on trophic structure were robust. The trophic groups including size information were broadly similar to groups found earlier with data averaged at species level. Hierarchical clustering produces a hierarchy of trophic groups (or trophic guilds) at various levels of diet dissimilarity. With 12 clusters identified, one cluster had fish as dominant prey, and 5–6 others had either plankton or benthos as dominant prey. The clusters tended to be distinct and homogenous with one dominant prey category in average diet (often > 60 %). This was especially the case for the plankton clusters, with copepods, euphausiids, hyperiid amphipods, or gelatinous zooplankton as dominant prey in each of 4 trophic groups. The benthos clusters tended to be less dissimilar with more overlap in diet composition, with predominance of either hard-shelled forms (echinoderms and molluscs) or softer prey (polychaetes and crustaceans) for groups of clusters. There were clear patterns of ontogenetic shifts in fish diet. Fish that clustered as piscivores at larger size tended to grow from being planktivores when smaller. Smaller species of planktivores or benthivores shifted position among trophic groups but remained within the categories of planktivores or benthivores, respectively. Taxonomy (species) tended to be more important than size for explaining the diet composition of the different clusters of fish predators.

Изменение эстетических идеалов под воздействием феномена культа молодости 1920-х годов

Introduction. The principle of aesthetic transformation affects not only the functioning of fashion, but also a range of problems related to the worldview and world perception of a person, which are relevant for any time. Aesthetic problems have a deeper foundation than the change of images of vestimentary fashion, and lie in the sphere of social and cultural life of society. Theoretical analysis. At certain points in history, the aggravation of social and cultural aspects of public life causes a change in the spiritual values developed over the centuries, followed by a revision of aesthetic ideals. In the period of the 1920s, youth became the dominant age category in the society, and the cult of youth appeared. The theoretical basis of this phenomenon was provided by T. Parsons, K. Mannheim, Х. Ortega-y-Gasset, J. Huizinga and others, justifying it by the conflict of generations, the lack of continuity between them. Conclusions. An attempt has been made to take an integrated approach to the analysis of a number of aspects of a socio-cultural nature in a certain time period, which served as the starting point for the emergence of the cult of youth. The phenomenon led to the reassessment of aesthetic ideals. Fashion reacted sensitively to it, youth images inspired bold new directions and determined its development for decades to come.

Pengaruh Expressive Writing Therapy terhadap Self Esteem pada Pasien Skizofrenia di RSJ Dr. Radjiman Wediodiningrat Lawang-Malang

Abstract Background: Schizophrenia is a chronic mental illness that can affect an individual's quality of life. Individuals with schizophrenia experience a decline in self-functioning, leading to decreased social functioning that impacts self-esteem. Self-esteem is an important aspect for individuals. One non-pharmacological therapy that can be provided is cognitive psychotherapy, specifically expressive writing therapy.Objectives: This research was conducted to determine the effect of expressive writing therapy on self-esteem in schizophrenia patients at RSJ Dr. Radjiman Wediodiningrat Lawang-Malang. Methods: This research is quantitative research with a pre-experimental with a one group pretest-posttest design type. The sampling technique used was purposive sampling with a sample size of 20 people. Self-esteem was measured using the Rosenberg Self-esteem Scale (RSES) Indonesian version instrument. The data analysis technique used is the Paired Sample T-Test. Resulth: The majority of the sample were male (70%); the dominant age category of the sample was early adulthood (35%); unmarried status dominated (55%); the majority were self-employed (50%), and the educational level was high school/vocational school (50%). The average self-esteem score before intervention was 16.60, and after intervention, the average score was 20.15, indicating an increase in scores in the research sample with a difference of 3.5 points. The results of this study, measured using the Paired Sample T-Test, obtained a value of ρ < 0.05 (0.000 < 0.05). Conclusion: This research shows that there is an effect of expressive writing therapy on the self esteem of schizophrenic patients at RSJ Dr. Radjiman Wediodiningrat Lawang-Malang. Keywords : Expressive Writing Therapy, Self-Esteem, Schizophrenia

COVID-19 Vaccine Motivation and Hesitancy among a Sample of African American, Afro-Caribbean, and African Respondents in the United States.

Understanding the motivations and decisions behind COVID-19 vaccine acceptance is crucial for designing targeted public health interventions to address vaccine hesitancy. We conducted a qualitative analysis to explore COVID-19 vaccine acceptance among diverse ethnic subgroups of Black Americans in the United States. This study investigates the 2021-2022 responses of 79 African American, Afro-Caribbean, and African respondents over the age of 18 in Washington State and Texas. Respondents were asked "Do you plan to get the COVID-19 vaccination?" Qualitative responses were analyzed by content category and ethnic subgroup. Of the 79 responses, 60 expressed favorable perceptions, 16 expressed unfavorable perceptions, and 3 expressed neutral perceptions. Dominant categories among participants in favor of the vaccine included personal health (26), concern for health of family/or community members (13), and desire to protect others (11). Among the 42 vaccinated African American respondents, the primary motivation was personal health (20). The 12 unvaccinated African American respondents cited fear of side effects as their dominate motivation. Caribbean respondents cited family or elders as motivation for their decision. African respondents were nearly unanimous in taking the vaccine (13/16), citing trust in health care, protecting friends and family, and personal health as reasons. Community and personal relationships were critical decision-making factors in accepting the COVID-19 vaccine, with African Americans having the strongest hesitancy.

Physical Literacy Profile of Regional Athletes of Men's Football Sports Branch

This research aims to find out the physical literacy profile of regional athletes in the men's soccer sport. This type of research is quantitative descriptive with an instrument in the form of a questionnaire adopted from the International Physical Literacy Association (IPLA) draft instrument . The research samples in this study were taken using a purposive sampling technique with the criteria of being male and were selected to take part in the national qualifying round with a total of 24 samples. The data analysis technique uses quantitative descriptive analysis presented in percentage form. The results of the research show that the physical literacy profile of regional athletes in the men's soccer sport is in the category of not realizing/ignoring potential at 8.3%, the category for exploring potential at 12.5%, the category for developing potential at 37.5%, the category for consolidating potential at 41.7% and the category of maximizing potential is 0%. The most dominant category with a result of 41.7%, namely the physical literacy profile of regional athletes in the men's soccer sport, is in the category of consolidating potential

Exploring anthropometric and functional factors that influence working adult's handgrip strength in north Australia.

Handgrip strength (HGS) is a reliable assessment of hand function. Interpretation of HGS is commonly done using normative data. Normative HGS data HGS considers the influence of age and gender without adjustment for anthropometric measurements or functional factors known to influence HGS. To determine the potential relationship of select anthropometric measurements (height, weight, hand length and width, forearm length and circumference) and functional factors (hand dominance, work and lifestyle category) to HGS. This study included a sample of 119 males and 96 female workers from North Queensland. HGS and six anthropometric measurements were obtained using calibrated instruments and reliable measurement protocols. Age and gender along with three functional factors were documented by self-report. Right and left mean HGS was greater for individuals who performed heavy/very heavy work (58.1±10.1 kg and 54.1±10.9 kg respectively) compared to light (38.5±12.3 kg and 35.5±11.8 kg) or medium work (44.1±10.8 kg and 40.0±12.9 kg). Mean HGS was greater for individuals who performed heavy/very heavy activity (right 48.5±13.6 kg and left 44.5±13.7 kg) compared to light activity (right 36.3±11.2 kg and left 33.9±11.3 kg) within their lifestyle. HGS positively correlated with gender (p = 0.0001), work (p = 0.001) and anthropometric measurements of forearm circumference (p = 0.001), hand length (p = 0.006) and hand width (p = 0.052). Easy to measure anthropometric measurements of forearm circumference, hand length and width are the strongest predictors of HGS in addition to an individual's physical activity at work and in their lifestyle. Consideration of these factors could lead to improved evaluation of HGS scores.

Multi-scenario simulation and evaluation of the impacts of land use change on ecosystem service values in the Chishui River Basin of Guizhou Province, China

Changes in land-use patterns are the main driving factors of ecosystem service values (ESVs). The quantitative evaluation of ESVs is significant for the sustainable development of ecologically fragile areas. In this study, the Chishui River Basin (CRB) in China was selected as the study region, and an intensity map (IM) was used to analyze the transformation of land use/land cover (LULC). The modified equivalent coefficient value method was used to evaluate the ESVs based on the 2000, 2010, and 2020 land use datasets. The spatial and temporal distributions of ESV and its response to changes in LULC were analyzed using the Getis-Ord Gi* statistical method and Spearman’s rank correlation analysis. Moreover, spatial and temporal changes in LULC and ESV over the next 30 years in the four development scenarios were simulated using the Markov-PLUS model. The following results were obtained: 1) The farmland and forestland were the dominant LULC categories, and that the LULC pattern dramatically changed in the study area; 2) the total ESV of the CRB decreased significantly from 23.21 billion yuan in 2000 to 22.29 billion yuan in 2020; and 3) the ecological conservation scenario significantly promoted the total ESV, and the town development scenario was more conducive to the urbanization process. Therefore, although the ESV of the CRB showed a decreasing to slowly increasing trend in the context of a series of ecological restoration measures, scientific ecological protection and development policies must be continuously implemented to achieve harmony between ecological service improvement and urbanization development. Our results provide important information for making land-use decisions and facilitating sustainable development in ecologically protected basins.

A network approach for multiscale catchment classification using traits

Abstract. The classification of river catchments into groups with similar biophysical characteristics is useful to understand and predict their hydrological behavior. The increasing availability of remote sensing and other large-scale geospatial datasets has enabled the use of advanced data-driven approaches to classify catchments using traits such as topography, geology, climate, land cover, land use, and human influence. Unsupervised clustering algorithms based on the Euclidean distance are commonly used for trait-based classification but are not suitable for highly dimensional data. In this study we present a new network-based method for multi-scale catchment classification, which can be applied to large datasets and used to determine the traits associated with different catchment groups. In this framework, two networks are analyzed in parallel: the first being where the nodes are traits and the second being where the nodes are catchments. In both cases, edges represent pairwise similarity, and a network cluster detection algorithm is used for the classification. The trait network is used to investigate redundancy in the trait data and to condense this information into a small number of interpretable categories. The catchments network is used to classify the catchments into clusters and to identify representative catchments for the different groups using the degree centrality metric. We apply this method to classify 9067 river catchments across the contiguous United States at both regional and continental scales using 274 non-categorical traits. At the continental scale, we identify 25 interpretable trait categories and 34 catchment clusters of sizes greater than 50. We find that catchments with similar trait categories are typically located in the same region, with different spatial patterns emerging among clusters dominated by natural and anthropogenic traits. We also find that the catchment clusters exhibit distinct hydrological behavior based on an analysis of streamflow indices. This network approach provides several advantages over traditional means of classification, including better separation of clusters, the use of alternate similarity metrics that are more suitable for highly dimensional data, and reducing redundancy in the trait information. The paired catchment–trait networks enable analysis of hydrological behavior using the dominant trait categories for each catchment cluster. The approach can be used at multiple spatial scales since the network topologies adjust automatically to reflect the trait patterns at the scale of investigation. Finally, the representative catchments identified as hub nodes in the network can be used to guide transferable observational and modeling strategies. The method is broadly applicable beyond hydrology for classification of other complex systems that utilize different types of trait datasets.