期刊文献+
共找到126,375篇文章
< 1 2 250 >
每页显示 20 50 100
Spatiotemporal characteristics of cultivated land use eco-efficiency and its influencing factors in China from 2000 to 2020 被引量:1
1
作者 LI Shaoting MU Na +1 位作者 REN Yanjun Thomas GLAUBEN 《Journal of Arid Land》 SCIE CSCD 2024年第3期396-414,共19页
Improving cultivated land use eco-efficiency(CLUE)can effectively promote agricultural sustainability,particularly in developing countries where CLUE is generally low.This study used provincial-level data from China t... Improving cultivated land use eco-efficiency(CLUE)can effectively promote agricultural sustainability,particularly in developing countries where CLUE is generally low.This study used provincial-level data from China to evaluate the spatiotemporal evolution of CLUE from 2000 to 2020 and identified the influencing factors of CLUE by using a panel Tobit model.In addition,given the undesirable outputs of agricultural production,we incorporated carbon emissions and nonpoint source pollution into the global benchmark-undesirable output-super efficiency-slacks-based measure(GB-US-SBM)model,which combines global benchmark technology,undesirable output,super efficiency,and slacks-based measure.The results indicated that there was an upward trend in CLUE in China from 2000 to 2020,with an increase rate of 2.62%.The temporal evolution of CLUE in China could be classified into three distinct stages:a period of fluctuating decrease(2000-2007),a phase of gradual increase(2008-2014),and a period of rapid growth(2015-2020).The major grain-producing areas(MPAs)had a lower CLUE than their counterparts,namely,non-major grain-production areas(non-MPAs).The spatial agglomeration effect followed a northeast-southwest strip distribution;and the movement path of barycentre revealed a"P"shape,with Luoyang City,Henan Province,as the centre.In terms of influencing factors of CLUE,investment in science and technology played the most vital role in improving CLUE,while irrigation index had the most negative effect.It should be noted that these two influencing factors had different impacts on MPAs and non-MPAs.Therefore,relevant departments should formulate policies to enhance the level of science and technology,improve irrigation condition,and promote sustainable utilization of cultivated land. 展开更多
关键词 cultivated land use eco-efficiency(CLUE) slacks-based measure(SBM)model barycentre model standard deviation ellipse(SDE) panel Tobit model carbon emissions nonpoint source pollution
下载PDF
Sustainable Intensification and Large-scale Operation of Cultivated Land Use at the Farmers’ Scale:A Case Study of Shandong Province,China
2
作者 LI Li LYU Xiao +2 位作者 ZHANG Anlu NIU Shandong PENG Wenlong 《Chinese Geographical Science》 SCIE CSCD 2024年第1期149-167,共19页
Sustainable intensification of cultivated land use(SICLU) and large-scale operations(LSO) are widely acknowledged strategies for enhancing agricultural performance.However,the existing literature has faced challenges ... Sustainable intensification of cultivated land use(SICLU) and large-scale operations(LSO) are widely acknowledged strategies for enhancing agricultural performance.However,the existing literature has faced challenges in precisely defining SICLU and constructing comprehensive indicators,which has hindered the exploration of factors influencing LSO within the SICLU framework.To address this gap,we integrated self-efficacy theory into the design of an index framework for evaluating SICLU.We subsequently employed econometric models to analyze the significant factors that impact LSO.Our findings reveal that SICLU can be divided into four key dimensions:intensive management,efficient output,resource conservation,and ecological environment optimization.Furthermore,it is crucial to incorporate belief-based cognitive factors into the index system,as farmers’ understanding of fertilizer and pesticide application significantly influences their willingness to engage in LSO.Moreover,we identify grain market turnover as the most influential factor in promoting LSO,with single-factor contribution rates reaching 70.9% for cultivated land transfer willingness and 62.5% for the total planting areas.Interestingly,unlike irrigation and agricultural machinery inputs,increased labor inputs correspond to larger planting areas for farmers.This trend may be attributed to reduced labor availability because of rural labor migration,whereas the reduction in irrigation and agricultural input is contingent on innovations in production practices and the transfer of cultivated land management rights.Importantly,SICLU dynamically influences LSO,with each index related to SICLU having an optimal range that fosters LSO.These insights offer valuable guidance for policymakers,emphasizing farmers as their central focus,with the adjustment of input and output factors as a means to achieve LSO as the ultimate goal.In conclusion,we propose research avenues for further enriching the SICLU framework to ensure that it aligns with the specific characteristics of regional agricultural development. 展开更多
关键词 sustainable intensification of cultivated land use(SICLU) SELF-EFFICACY status quo bias input and output Boosted Regression Tree willingness to transfer cultivated land cultivated land planting areas Shandong China
下载PDF
Comparative Study of Genetic Structure and Genetic Diversity betweenWild and Cultivated Populations of Taxus cuspidata,Northeast China
3
作者 Dandan Wang Xiaohong Li Yanwen Zhang 《Phyton-International Journal of Experimental Botany》 SCIE 2024年第2期355-369,共15页
Taxus cuspidata is a rare plant with important medicinal and ornamental value.Aiming at the obvious differences between wild and cultivated populations of T.cuspidata from Northeast China,a total of 61 samples,that is... Taxus cuspidata is a rare plant with important medicinal and ornamental value.Aiming at the obvious differences between wild and cultivated populations of T.cuspidata from Northeast China,a total of 61 samples,that is,33 wild yews and 28 cultivated yews were used to analyze the differences and correlations of the kinship,genetic diversity,and genetic structure between them by specific length amplified fragment sequencing(SLAF-seq).Finally,470725 polymorphic SLAF tags and 58622 valid SNP markers were obtained.Phylogenetic analysis showed that 61 samples were classified into 2 clusters:wild populations and cultivated populations,and some wild yews were categorized into the cultivated populations;the genetic diversity analysis showed that the Nei diversity index of wild populations(0.4068)was smaller than that of cultivated populations(0.4414),and the polymorphic information content(PIC)of wild populations(0.2861)was smaller than that of cultivated populations(0.3309).The genetic differentiation analysis showed that the total populations of gene diversity(H_(t))of cultivated and wild populations were respectively 0.8159 and 0.5685,the coefficient of gene differentiation(G_(st))of cultivated and wild populations was respectively 0.3021 and 0.1068,and the gene flow(N_(m))(2.4967)of wild populations was larger than cultivated populations(0.8199).The molecular variance(AMOVA)revealed that inter-population variation accounted for 29.57%of the total genetic variation,while intra-population variation accounted for 70.42% of the total genetic variation(p<0.001),this suggested that the genetic variation in the T.cuspidata is mainly attributed to within-population factors.In conclusion,the genetic distance between geographical ecological groups of wild populations was generally smaller than that of cultivated populations,and the degree of genetic diversity and genetic differentiation was smaller than that of cultivated populations.As evident,the utilization of SLAF-seq technology enables efficient and accurate development of SNP markers suitable for genetic analysis of T.cuspidata species.These developed SNP markers can provide a molecular foundation for T.cuspidata breeding,construction of genetic maps,variety identification,and association analysis of agronomic traits. 展开更多
关键词 T.cuspidata SLAF-seq SNP wild population cultivated population genetic structure
下载PDF
Spatiotemporal patterns and drivers of cultivated land conversion in Inner Mongolia Autonomous Region,northern China
4
作者 Xijiri ZHOU Ruiping +1 位作者 BAO Baorong Burenjirigala 《Journal of Arid Land》 SCIE CSCD 2024年第9期1197-1213,共17页
Protection and optimization of cultivated land resources are of great significance to national food security.Cultivated land conversion in northern China has increased in recent years due to the industrialization and ... Protection and optimization of cultivated land resources are of great significance to national food security.Cultivated land conversion in northern China has increased in recent years due to the industrialization and urbanization of society.However,the assessment of cultivated land conversion in this area is insufficient,posing a potential risk to cultivated land resources.This study evaluated the evolution and spatiotemporal patterns of cultivated land conversion in Inner Mongolia Autonomous Region,China,and the driving factors to improve rational utilization and to protect cultivated land resources.The spatiotemporal patterns of cultivated land conversion in Inner Mongolia were analyzed using the cultivated land conversion index,kernel density analysis,a standard deviation ellipse model,and a geographic detector.Results showed that from 2000 to 2020,the trends in cultivated land conversion area and rate in Inner Mongolia exhibited fluctuating growth,with the total area of cultivated land conversion reaching 7307.59 km^(2) at a rate of 6.69%.Spatial distribution of cultivated land conversion was primarily concentrated in the Hetao Plain,Nengjiang Plain,Liaohe Plain,and the Hohhot-Baotou-Ordos urban agglomeration.Moreover,the standard deviational ellipse of cultivated land conversion in Inner Mongolia exhibited a directional southwest-northeast-southwest-northeast distribution,with the northeast-southwest direction identified as the main driving force of spatial change in cultivated land conversion.Meanwhile,cultivated land conversion exhibited an increase-decrease-increase change process,indicating that spatial distribution of cultivated land conversion in Inner Mongolia became gradually apparent within the study period.The geographic detector results further revealed that the main driving factors of cultivated land conversion in Inner Mongolia were the share of secondary and tertiary industries and per-unit area yield of grain,with explanatory rates of 57.00%,55.00%,and 51.00%,respectively.Additionally,improved agricultural production efficiency and the coordinated development of population urbanization and industry resulted in cultivated land conversion.Collectively,the findings of this study indicated that,from 2000 to 2020,the cultivated land conversion in Inner Mongolia was significant and fluctuated in time,and had strong spatial heterogeneity.The primary drivers of these events included the effects of agriculture,population,and social economy. 展开更多
关键词 cultivated land conversion spatiotemporal variation standard deviation elliptical models geographic detector northern China
下载PDF
Spatio-temporal Evaluation of Multi-scale Cultivated Land System Resilience in Black Soil Region from 2000 to 2019:A Case Study of Liaoning Province,Northeast China
5
作者 WANG Yue JIANG Yuting ZHU Guoxu 《Chinese Geographical Science》 SCIE CSCD 2024年第1期168-180,共13页
It is of great significance to systematically analyze the cultivated land system resilience(CLSR) for the black soil protection and national food security.The CLSR is impacted by planting structure adjustment and cult... It is of great significance to systematically analyze the cultivated land system resilience(CLSR) for the black soil protection and national food security.The CLSR is impacted by planting structure adjustment and cultivated land quality decline,posing major hidden dangers to food security.It is urgent to evaluate the CLSR at multiple spatio-temporal scales.This study took Liaoning Province in the black soil region of Northeast China as an example.Based on the resilience theory,this study constructed the CLSR evaluation system from the input-feedback perspective at the provincial-scale and the city-scale,and used the rank-sum ratio comprehensive evaluation method(RSR) to analyze the key influencing factors of CLSR in Liaoning Province and its 14 cities from 2000 to 2019.The results showed that:1) the time series changes of CLSR at the provincial-scale and the city-scale in Liaoning Province were similar,both showing an increasing trend.2) The CLSR in Liaoning Province presented a spatial pattern of ‘high in the west and low in the east’ at the city-scale.3) There were seven and six main influencing factors of CLSR at the provincial-scale and the city-scale,respectively.In addition to the net income per capita of rural households,other influencing factors of CLSR were different at the provincial-scale and the city-scale.The feedback factors were dominant at the provincial-scale,and the input factors and feedback factors were dominant at the city-scale.The results could provide a reference for the utilization of black soil and draw on the experience of regional agricultural planning and adjustment. 展开更多
关键词 cultivated land system resilience(CLSR) rank-sum ratio comprehensive evaluation(RSR) multi-scales influencing factors black soil region Liaoning Province China
下载PDF
Researching Creativity in Second Language Acquisition:Book Review
6
作者 SHEN Rong-xi ZENG Hai-xiang 《Journal of Literature and Art Studies》 2024年第3期215-219,共5页
In the realm of psychology and language acquisition,the exploration of“individual differences”-encompassing attributes such as personality traits,motivation,and language aptitude-has long been a focal point of schol... In the realm of psychology and language acquisition,the exploration of“individual differences”-encompassing attributes such as personality traits,motivation,and language aptitude-has long been a focal point of scholarly investigation.Within this sphere,the book“Researching Creativity in Second Language Acquisition”by Ashleigh Pipes offers a fresh perspective on the role of creativity as a significant individual difference in Second Language Acquisition(SLA).Positioned against the backdrop of extensive empirical research on individual differences,this book stands out by focusing on the often overlooked aspect of creativity,which Pipes argues,holds paramount importance in SLA. 展开更多
关键词 Second Language Acquisition(SLA) creativity
下载PDF
Ways to Cultivate and Develop Human Resources in the New Situation
7
作者 Lei Wang Gengliang Yang 《Journal of Sustainable Business and Economics》 2024年第2期38-43,共6页
In the trend of globalization,digitization,and economic integration,human resources are the core competitiveness of enterprises,and cultivating and developing them is crucial for enhancing competitive advantages.This ... In the trend of globalization,digitization,and economic integration,human resources are the core competitiveness of enterprises,and cultivating and developing them is crucial for enhancing competitive advantages.This article delves into how human resource development drives enterprise innovation,promotes team collaboration,and optimizes performance management.Currently,although many enterprises are beginning to attach importance to human resource development,they still face problems such as insufficient investment,weak targeted training,and insufficient exploration of employee potential.Therefore,it is proposed that in the new situation,enterprises need to strengthen diversified training strategies,use digital tools to improve training efficiency,build a fair performance evaluation system,stimulate employee potential,and promote internal talent mobility.The implementation of these strategies will effectively enhance the efficiency of enterprise human resource management and consolidate market position. 展开更多
关键词 Human Resources CULTIVATION DEVELOPMENT New situation CHANNEL
下载PDF
Evaluation and Driving Force Analysis of Cultivated Land Quality in Black Soil Region of Northeast China 被引量:1
8
作者 WANG Mingchang LIU Xingnan +4 位作者 LIU Ziwei WANG Fengyan LI Xiaoyan HOU Guanglei ZHAO Shijun 《Chinese Geographical Science》 SCIE CSCD 2023年第4期601-615,共15页
Cultivated land is an important natural resource to ensure food,ecological and economic security.The cultivated land quality evaluation(CQE)is greatly significant for protecting and managing cultivated land.In this st... Cultivated land is an important natural resource to ensure food,ecological and economic security.The cultivated land quality evaluation(CQE)is greatly significant for protecting and managing cultivated land.In this study,320 counties in the black soil region of Northeast China(BSRNC)represent the research units used to construct the CQE system measuring the soil properties(SP),cultivated land productivity(CLP),ecological environment(EE)and social economy(SE).The total of 19 factors were selected to calculate the integrated fertility index(IFI)and divided into grades.Simultaneously,we used the coupling coordination degree model to comprehensively analyze the spatial pattern of the cultivated land quality(CLQ)in the BSRNC,and use the structural equation model(SEM)to analyze the driving mechanism.The results show the following:1)The CLQ of 262 counties in the BSRNC is in a state of coupling and coordination,and the coupling and coordination degree presents a spatial distribution pattern of‘high in the southwest and northeast,low in the northwest and southeast’.The coordinated development degree of 271 counties is between 0.4 and 0.6,which is in a transitional state between coordination and disorder.2)The CLQ in the BSRNC is generally good,with an average grade of 3.High-quality cultivated land accounts for 58.45%of all counties,middle-and upper-quality cultivated land accounts for 27.05%,and poor-quality cultivated land accounts for 14.49%.3)The SEM analysis shows that the SP,CLP,EE,and SE all influence the CLQ.Among them,the SP has the largest driving force on the CLQ,while the SE has the smallest driving force on it.The results confirm that the main factors affecting the evaluation results are crop productivity level,normalized difference vegetation index,ratio vegetation index,difference vegetation index,and organic carbon content.When implementing protection measures in counties with a low CLQ,considering a balanced coordination of multiple systems and reasonably controlling the quality degradation are important.This study provides the current situation and driving factors of the CLQ in the BSRNC and will play an important role in black soil governance and utilization. 展开更多
关键词 cultivated land quality evaluation(CQE) black soil region of Northeast China(BSRNC) coupling coordination degree model structural equation model(SEM) driving forces
下载PDF
人工智能创造力探究 被引量:5
9
作者 胡卫平 张阳 +1 位作者 吕元婧 徐晶晶 《现代教育技术》 CSSCI 2024年第1期17-25,共9页
目前,国内外大语言模型如雨后春笋般涌现,加速了通用人工智能时代的到来。人工智能在科学、艺术等领域展现出的卓越创造力,大大推动了人类科技进步,但也给人类传统创造力带来了巨大挑战,需要对人工智能创造力的本质特征进行审视,并预测... 目前,国内外大语言模型如雨后春笋般涌现,加速了通用人工智能时代的到来。人工智能在科学、艺术等领域展现出的卓越创造力,大大推动了人类科技进步,但也给人类传统创造力带来了巨大挑战,需要对人工智能创造力的本质特征进行审视,并预测其未来应用方向。基于此,文章聚焦于人工智能创造力,首先阐释了人工智能创造力的基本内涵;接着,文章从通用领域创造力表现和专业领域创造力表现两个维度,介绍了人工智能创造力的外在表现;然后,文章从产生机制和调控机制两个方面,深入剖析了人工智能创造力的内在机制,并结合人类创造力评价经验提出了人工智能创造力的评价原则和评价方法;最后,文章分析了人工智能创造力未来的应用模式、应用前景并给出应用建议。文章的研究既可促进人工智能创造力的发展和人工智能技术的进步,也能为人类创造力的培养和提升提供一定的借鉴。 展开更多
关键词 人工智能 创造力 人机融合 创造性成果
下载PDF
Spatiotemporal Pattern of Cultivated Land Pressure and Its Influencing Factors in the Huaihai Economic Zone, China
10
作者 LI Yi FANG Bin +2 位作者 LI Yurui FENG Weilun YIN Xu 《Chinese Geographical Science》 SCIE CSCD 2023年第2期287-303,共17页
Cultivated land pressure represents a direct reflection of grain security. Existing relevant studies rarely approached the spatiotemporal pattern of cultivated land pressure or the spatial heterogeneity of its influen... Cultivated land pressure represents a direct reflection of grain security. Existing relevant studies rarely approached the spatiotemporal pattern of cultivated land pressure or the spatial heterogeneity of its influencing factors from the level of economic zones.Taking the Huaihai Economic Zone(HEZ), China for case analysis, this study investigated the spatiotemporal pattern of cultivated land pressure in diverse periods from 2000 to 2018 based on a modified cultivated land pressure index and spatial correlation models. On this basis, it explored the influencing factors of the spatial differentiation of cultivated land pressure in the late stage of the study using geographical detector as well as multi-scale geographically weighted regression model. The results indicated that: 1) in the study period, the global cultivated land pressure index of the study area decreased gradually, but cultivated land pressure increased locally in a significant way, especially in the central and southern Shandong Province;2) the spatial pattern of cultivated land pressure manifested global clustering features. Hot and secondary-hot spots presented a narrowing and clustering trend, whereas cold and secondary-cold spots manifested a spreading and clustering trend;3) average slope, the proportion of non-grain crops, population urbanization rate, and multiple cropping index have significant effects on the spatial differentiation of cultivated land pressure. The former three factors were positively correlated with cultivated land pressure, and the last factor was negatively correlated with cultivated land pressure;and 4) the amount of cultivated land has increased in the central and southern Shandong Province through land consolidation which, nonetheless, failed to improve the grain production. In regards to major grain producing areas similar to the HEZ in China, the authors suggest that great importance should be given to the balance of the quality and quantity of cultivated land, the optimization of agricultural production factors and the rational control of non-grain crops, thus providing a powerful guarantee for grain security in China. 展开更多
关键词 cultivated land pressure spatiotemporal pattern influencing factors Huaihai Economic Zone China
下载PDF
创造力与大学生生命意义感:积极情绪和创造性自我效能感的作用 被引量:8
11
作者 韩建涛 钱俊妮 +1 位作者 张婕妤 庞维国 《心理发展与教育》 CSSCI 北大核心 2024年第2期187-195,共9页
为考察创造力与大学生生命意义感之间的关系,以及积极情绪和创造性自我效能感在其中的作用,本研究采用Runco创新观念行为量表、积极情绪量表、创造性自我效能感问卷和生命意义问卷对665名大学生进行了测查。结果显示:(1)创造力、积极情... 为考察创造力与大学生生命意义感之间的关系,以及积极情绪和创造性自我效能感在其中的作用,本研究采用Runco创新观念行为量表、积极情绪量表、创造性自我效能感问卷和生命意义问卷对665名大学生进行了测查。结果显示:(1)创造力、积极情绪、创造性自我效能感和生命意义感之间存在两两正相关关系;(2)积极情绪在创造力与生命意义感之间起部分中介作用;(3)创造性自我效能感调节了创造力影响生命意义感的直接路径,随着创造性自我效能感的提升,创造力对生命意义感的预测作用减弱。本研究在理论上揭示了创造力对生命意义感的作用及其机制,对大学生生命意义教育具有一定实践参考价值。 展开更多
关键词 创造力 生命意义感 积极情绪 创造性自我效能感
下载PDF
Characteristics and driving factors of abandoned cultivated land in the hilly regions of southern China:A case study in Longnan,Jiangxi Province
12
作者 CHEN Ze-bin CHEN Yong-lin +4 位作者 LI Chao-jun LIN Jian-ping CHEN Pei-ru SUN Wei-wei WAN Zhi-wei 《Journal of Mountain Science》 SCIE CSCD 2023年第5期1483-1498,共16页
The abandonment of cultivated land in southern China was gradually obvious.This research aims to provide a reference for solving the abandonment of cultivated land in hilly regions and promote rural development in Chi... The abandonment of cultivated land in southern China was gradually obvious.This research aims to provide a reference for solving the abandonment of cultivated land in hilly regions and promote rural development in China.We examined Longnan county located in the hilly regions of southern China as an example,where abandoned cultivated land is very common.We analyzed its land use data with a field survey to identify the abandoned cultivated land and geospatial characteristics.From the two aspects of social and natural factors,we analyzed the factors driving cultivated land abandonment with the help of Geodetector.The results showed that in 2019,the total area of the abandoned cultivated land in Longnan county was 4,962.35 hm^(2),covering 39.51% of this region.Among the topographic factors,the abandonment rate is positively correlated with elevation and slope gradient,but not with slope direction.Among the land parcel conditions,the abandonment rate is positively correlated with the access to road network and cultivation distance from settlement.At the county level,the abandonment of cultivated land in study area was affected by multiple factors,among which,the direct factor was the reduction in the labor force,such as the decrease of farming laborers and the increase of female population,which made farming unsustainable.Changes in production factors also promoted transformations in farmers’motivation to engage in production,such as the decrease of grain crops and the increase of cash crops,which was the indirect factor affecting cultivated land abandonment.The development of the rural nonagricultural industry affected farmers’enthusiasm,such as the decrease of farming households,which was the fundamental factor leading to cultivated land abandonment in this area. 展开更多
关键词 cultivated land abandonment Spatial distribution Geodetector Driving factor Hilly region County level
下载PDF
Spatiotemporal Interaction Between Rural Settlements and Cultivated Land in Karst Mountainous Area,China
13
作者 LIN Feifei CHENG Peng KONG Xuesong 《Chinese Geographical Science》 SCIE CSCD 2023年第5期946-965,共20页
Settlements and cultivated land are important production and living spaces in promoting rural revitalization.However,few studies have explored the relationship between rural settlements and cultivated land from spatio... Settlements and cultivated land are important production and living spaces in promoting rural revitalization.However,few studies have explored the relationship between rural settlements and cultivated land from spatiotemporal interaction perspective.This paper analyzed the spatiotemporal conversion and the interactive mechanism between rural settlements and cultivated land in a karst mountainous area(Qixingguan District of Guizhou Province)with fragile ecological environment in China during 2009–2018.The results showed that the expansion of rural settlements and the loss of cultivated land coexisted in Qixingguan District.Only 2.68%of the new cultivated land was reclaimed from rural settlements,whereas 85.45%of the new rural settlements occupied cultivated land.Six spatial expansion modes of rural settlements when occupying cultivated land were identified.Among these six modes,the area of the edge-expansion&along traffic roads(EA)mode accounted for 52.75%.The occupation by rural settlements made the cultivated land landscape more fragmented.The area ratio index of cultivated land to rural settlements(ARICR)of Qixingguan District averaged 18.75in 2009 and 17.21 in 2018,respectively.The ARICR reduced in all township administrative regions.Cultivated land with suitable slope condition for farming or without rocky desertification was more likely to be occupied by rural settlements.The probability of cultivated land occupied by rural settlements increased with the decrease of the distance to traffic roads,towns,and old rural settlements.The better the economic and social development of the township administrative regions,the more the ARICR decreased,while the richer the agricultural resources and the better the rural development of the township administrative regions,the less the ARICR decreased.The optimal reconstruction path of rural settlements,the comprehensive conservation path of cultivated land and the urban-rural integration development path in karst mountainous area were proposed.The findings would contribute to our understanding of the spatiotemporal interaction between rural settlements and cultivated land,and would provide a theoretical basis for promoting the coordinated development of rural man-land relationship and rural revitalization in karst areas. 展开更多
关键词 cultivated land rural settlements landscape pattern logistic regression geographical detector karst mountainous area
下载PDF
差异教育:撬动拔尖创新人才培养的“阿基米德点” 被引量:14
14
作者 朱德全 王小涛 《重庆高教研究》 CSSCI 北大核心 2024年第1期10-16,共7页
在新一轮科技革命与产业革命浪潮下,拔尖创新人才在全球竞争格局中发挥着愈加关键的作用,培养拔尖创新人才自然成为世界各国教育的主要任务。拔尖创新人才培养不仅事关国家重大战略方针的贯彻,还是新时代高质量教育体系建设的题中应有之... 在新一轮科技革命与产业革命浪潮下,拔尖创新人才在全球竞争格局中发挥着愈加关键的作用,培养拔尖创新人才自然成为世界各国教育的主要任务。拔尖创新人才培养不仅事关国家重大战略方针的贯彻,还是新时代高质量教育体系建设的题中应有之义,更是实现人才全面自由发展的重要抓手。差异教育作为一种承认差异、尊重差异并发展差异的教育模式,分别为拔尖创新人才培养提供了理念、方法与评价上的支撑,是撬动拔尖创新人才培养的“阿基米德点”。具体而言,以“差异育人”为中心的差异教育理念承认并尊重个体具备的不同优势、天赋与潜质,让教育者明白每个学生都可以在自己的创新领域成为“拔尖”人才;以“因材施教”为核心的差异教育方法,打破传统教学“设定标准”和“定向加工”的方法原则,契合了拔尖创新人才的培养模式,让每个学生都能长善救失,获得最佳发展;以“人尽其才”为主的差异教育评价标准,通过“多把尺子”为更多拔尖创新人才提供发展机会,促使拔尖创新人才源源不断地“冒出来”。为此,在拔尖创新人才培养的实践过程中,教育者有必要有机融入差异教育的理念主张,通过树立“尊重差异”的培养理念、创设“发展差异”的培养模式以及探索“多元包容”的评价体系,为拔尖创新人才培养提供差异教育支持。 展开更多
关键词 差异教育 因材施教 人才培养 学生发展 拔尖创新人才
下载PDF
拔尖创新人才培养的理论基础和实践思路 被引量:41
15
作者 戴耘 《华东师范大学学报(教育科学版)》 CSSCI 北大核心 2024年第1期1-23,共23页
拔尖创新人才的培养是一个现实而又紧迫的话题,但关于什么是“拔尖创新人才”,如何选拔和培养这类人才,尚缺乏成熟的理论准备和实践引导。本文旨在对创新潜能、发展、成就的理论以及对应的识别、培养、文化支持等社会实践做一个系统概... 拔尖创新人才的培养是一个现实而又紧迫的话题,但关于什么是“拔尖创新人才”,如何选拔和培养这类人才,尚缺乏成熟的理论准备和实践引导。本文旨在对创新潜能、发展、成就的理论以及对应的识别、培养、文化支持等社会实践做一个系统概要的阐述。首先,在拔尖创新人才的界定上,本文提出了创新的五种形态和创新人才的两种不同类型。第二,在创新人才的识别问题上,本文提出了基于人才动态发展观并结合“总体筛选”和“个体考察”的人才识别模式。第三,在发展和培养问题上,本文提出兼顾成长阶段和领域具体性同时突出“探索未知”和“开放性”的培养模式。第四,在创新成就的文化支持上,本文探讨了如何在创新实践中营造兼容认知多样性和鼓励自由探索的生态环境。第五,本文进一步针对现有教育体制提出了五个实践策略上的着眼点。最后,关于教育实践的政策导向,本文提出了四个基本原则和四种认知误区。 展开更多
关键词 创新人才 创新类型 创新潜能 心智发展 人才识别 培养模式 创新文化 教育政策
下载PDF
创意越轨:双元领导影响员工创意实施的“非法”路径研究 被引量:2
16
作者 丁琳 耿紫珍 +1 位作者 单春霞 王海珍 《科技进步与对策》 CSSCI 北大核心 2024年第1期116-125,共10页
基于紧张理论和资源保存理论,提出双元领导在同事职场友谊边界下通过创意越轨作用于创意实施的“非法”路径,并对5家国有企业管理者和员工进行问卷调查,采用多项式回归和块变量分析法进行假设验证。结果发现:双元领导的不一致性会带来... 基于紧张理论和资源保存理论,提出双元领导在同事职场友谊边界下通过创意越轨作用于创意实施的“非法”路径,并对5家国有企业管理者和员工进行问卷调查,采用多项式回归和块变量分析法进行假设验证。结果发现:双元领导的不一致性会带来更多结构紧张,员工创意越轨行为随之增加,而双元领导一致性有利于员工开展更多创意实施;创意越轨在双元领导与创意实施间发挥部分中介作用;同事职场友谊存在调节效应,高同事职场友谊条件下创意越轨的中介效应显著,反之,低同事职场友谊下创意越轨不存在显著中介效应。 展开更多
关键词 创意越轨 双元领导 创意实施 职场友谊
下载PDF
Coordination of urbanization and cultivated land resources in Guangdong-Hong Kong-Macao Greater Bay Area:A case study of Guangzhou City
17
作者 LIU Ben LIU Ying +2 位作者 WU Jia-long ZHONG Min DING Yi 《Ecological Economy》 2023年第3期233-243,共11页
Guangzhou,a significant hub city in the Guangdong-Hong Kong-Macao Greater Bay Area,has seen fast social and economic growth as well as steady progress in the degree of urbanization.This research,taking Guangzhou city ... Guangzhou,a significant hub city in the Guangdong-Hong Kong-Macao Greater Bay Area,has seen fast social and economic growth as well as steady progress in the degree of urbanization.This research,taking Guangzhou city as an example,aims to provide an understanding of how land resources,urbanization,and spatial planning are coordinated in the study area.It also aims to explore how the coordination degree of land resources,urbanization,and spatial planning changes over time.It seeks to provide effective suggestions for land resource protection,national spatial planning,and urban transformation development to promote the coordinated development of the Guangdong-Hong Kong-Macao Greater Bay Area into a world-class Bay Area. 展开更多
关键词 URBANIZATION cultivated land resources coordination degree model
下载PDF
Research on the Current Situation of Art and Creativity Protection
18
作者 ZHANG Zhe 《Cultural and Religious Studies》 2023年第12期616-621,共6页
This article aims to explore the current status of creative protection for artists in the field of art.With the further development of modern society,the development of the art market,and the continuous growth of the ... This article aims to explore the current status of creative protection for artists in the field of art.With the further development of modern society,the development of the art market,and the continuous growth of the market value of artist works,the protection of artistic creativity has also attracted increasing attention and become a focus.Firstly,the article will introduce the connotation and extension of artistic creativity,as well as the importance and significance of protection.Secondly,this article will explore the challenges faced by the protection of artistic creativity,including issues such as piracy and infringement,and propose corresponding tentative solutions.Finally,through specific analysis,the current status of artistic and creative protection will be summarized,and future development directions will be looked forward to. 展开更多
关键词 ART creativity PROTECTION DOMAIN STATUS
下载PDF
科学教育促进创新人才培养:逻辑、问题与路径 被引量:1
19
作者 张军 杨颖 范卿泽 《中国电化教育》 CSSCI 北大核心 2024年第9期19-24,共6页
持续有效地培养创新人才是提升国家整体创新水平的重要支撑。基于中小学科学教育的本质功能与创新人才的内在特质分析发现,科学教育有助于发展创新必备的知识基础,能够促进创新思维和创新精神的培养,从而促进创新人才的培养。反观现实,... 持续有效地培养创新人才是提升国家整体创新水平的重要支撑。基于中小学科学教育的本质功能与创新人才的内在特质分析发现,科学教育有助于发展创新必备的知识基础,能够促进创新思维和创新精神的培养,从而促进创新人才的培养。反观现实,我国中小学科学教育在培养创新人才方面仍存在系列问题,包括科学教育受应试惯性的影响强烈,科学教师的创新教育素养不足,科学教育的运行机制不完善等。为了发挥科学教育培养创新人才的有效功能,一是要优化科学课程体系,在科学教育全过程中落实创新人才的培养;二是要发展科学教师队伍,在创新型教师的引领下实现创新人才的培养;三是要优化科学教育生态,在多方协同的教育环境中促进创新人才的培养。 展开更多
关键词 科学教育 创新人才 创新能力 创新精神
下载PDF
基于XGBoost算法的可恢复耕地宜耕性评价——以湘阴县为例 被引量:2
20
作者 刘敏 周健 +4 位作者 胡月明 张林 赵清林 秦雅静 陈瑗瑗 《农业资源与环境学报》 CAS CSCD 北大核心 2024年第1期49-60,共12页
为科学有序开展可恢复耕地资源的整治,本研究提出一种基于XGBoost算法的可恢复耕地的宜耕性评价方法。选取自然条件、区位条件、社会经济状况以及工程条件等4个方面的因素,涉及海拔高程、坡度级别、国家自然等、集块面积、国家经济等、... 为科学有序开展可恢复耕地资源的整治,本研究提出一种基于XGBoost算法的可恢复耕地的宜耕性评价方法。选取自然条件、区位条件、社会经济状况以及工程条件等4个方面的因素,涉及海拔高程、坡度级别、国家自然等、集块面积、国家经济等、地块形状等36项影响因素为自变量,以现状可恢复耕地和耕种耕地二分类为因变量,分析各项影响因素对耕地宜耕性评价的重要程度,并进一步结合皮尔逊共线性分析和指标关联性分析,最终得到21项影响因素及其权重P值,优化后影响因素的权重P值相对稳定,其中自然因素对可恢复耕地宜耕性的影响权重最大,区位因素和工程因素权重次之,社会经济因素的权重最小。经过验证发现,预测耕种情况与实际耕种情况的符合率高达91.87%,且具有良好的泛化能力和鲁棒性,预测效果良好。借助上述模型预测得到的湘阴县可恢复耕地地块的宜耕潜力,形成如下认识:全县中西部平原区可恢复耕地宜耕潜力明显优于东部丘陵山区;可恢复耕地中未耕种和即可恢复地块的宜耕潜力高于工程恢复类地块,这些地块均属于良好的整治地块,可优先整治恢复为耕地;从可恢复耕地具体地类来看,坑塘和养殖坑塘类可恢复耕地的宜耕潜力最大,其次为其他林地类可恢复耕地;在耕地整治过程中,应结合可恢复耕地的宜耕性评价,合理有序地开展可恢复耕地的整治;此外,应开展精细化的耕地“非粮化”监测,实施差异化补偿政策,以遏制耕地“非粮化”。 展开更多
关键词 XGBoost 可恢复耕地 宜耕性 宜耕潜力 湘阴县
下载PDF
上一页 1 2 250 下一页 到第
使用帮助 返回顶部