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Land-population-industry based village evolution and its influencing factors in the upper Tuojiang River

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Journal of Mountain Science 2024年第8期21卷 2790-2809页

作者： ZHAN Yunjun JI Yuxin huang jiejun MA Changying MA Chuanqi School of Resources and Environmental Engineering Wuhan University of TechnologyWuhan 430070China

With economic development and urbanization in China,the rural settlements have experienced great *** explore the evolution process of rural settlements in terms of land,population and industry can reveal the development law of rural spatial distribution,population structure and industrial economy in different stages and *** the development status and evolution characteristics of villages in the upper Tuojiang River basin in Southwest China in the past 20 years are of significant *** upper Tuojiang River basin includes the main types of terrain found in the Southwest region:mountainous,plains,and hills,exhibiting a certain typicality of geographical *** study took towns and townships at the town-level scale as the basic unit of research,and constructed an evaluation system for village evolution based on'land,population,and industry'.It employed Criteria Importance Through Inter-Criteria Correlation(CRITIC)analysis to examine the characteristics of village evolution in the area from 2000 to 2020,and used geographic detector analysis to identify the leading factors affecting village *** results show that:(1)From 2000 to 2010,villages in the upper Tuojiang River basin experienced significant changes,and the pace of these transformations slowed from 2010 to 2020.(2)From a comprehensive perspective,from 2000 to 2020,villages in hilly areas show a decline,while villages in plain areas near the city center show a positive urbanization development.(3)Road accessibility and distance from the city center are the main factors that explain the spatial differentiation of village evolution degree in the study *** study elucidates the spatiotemporal evolution characteristics of villages in the upper Tuojiang River basin and identifies the primary factors contributing to their changes,which will provide a reference for investigating the development of rural areas in different terrains of Southwest China.

关键词： Village evolution Land Population Industry Geographic detector

Integrated assessment of the supply-demand relationship of ecosystem services in the Loess Plateau during 1992-2015

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Ecosystem Health and Sustainability 2022年第1期8卷 200-213页

作者： Dan Wang Youjia Liang Shouzhang Peng Zhangcai Yin jiejun huang School of Resources and Environmental Engineering Wuhan University of TechnologyWuhanChina State Key Laboratory of Soil Erosion and Dryland Farming on the Loess Plateau Institute of Water and Soil ConservationChinese Academy of Sciences and Ministry of Water ResourcesYanglingChina

Landscape alterations and ecosystem services(ES)are crucial elements that affect the socioecological development of ecologically fragile *** provide scientific support for the land-use planning and regional ecological restoration to achieve sustainable development goals(SDGs)in the Loess Plateau from 1992 to 2015,this study proposes an integrated assessment framework for assessing the supply-demand match and equilibrium of ES combining potential relationships between landscape alterations,ES,and sustainable development at the county and regional *** show that more than 85%of local counties have a supply-demand mismatch in terms of ecosystem ***-demand distributions for provisioning and supporting services were relatively balanced compared to cultural services,which were *** the overall supply-demand relationship is relatively balanced because of the significant influence of ecological restoration,it shows an increasing trend toward imbalance as human-land conflict is prominent in some *** emphasize on specific ES information such as ecosystem conservation,sustainable agriculture,and urban ***,positive impacts from landscape dynamics can improve the supply capacity of the ES and contribute to regional sustainability.

关键词： Ecosystem services landuse/coverage change supply–demand relationship sustainable development goals

Identifying eco-functional zones on the Chinese Loess Plateau using ecosystem service bundles

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Regional Sustainability 2023年第4期4卷 425-440页

作者： WU Fan LIANG Youjia LIU Lijun YIN Zhangcai huang jiejun School of Resources and Environmental Engineering Wuhan University of TechnologyWuhan430070China College of Resources and Environment Yangtze UniversityWuhan430100China

Optimizing the function of ecosystem services(ESs)is vital for implementing regional ecological management *** this study,we used multi-source data and integrated modelling methods to assess the spatiotemporal variations in eight typical ESs on the Chinese Loess Plateau from 2000 to 2015,including grain production,raw material provision,water conservation,carbon storage service,soil conservation,oxygen production,recreation,and net primary productivity(NPP)***,we divided the ecosystem service bundles(ESBs)according to relationships among the eight ESs,obtaining four types of eco-functional areas at the county(city or banner or district)level based on the spatial clustering of similarities in different ES *** also identified and assessed the contributions of influencing factors to these eco-functional areas using principal component analysis(PCA)across spatiotemporal *** found that the spatiotemporal variations in different ESs were noticeable,with an overall increase in grain production and soil conservation services,no significant change in carbon storage service,and overall decreases in raw material provision,water conservation,oxygen production,recreation,and NPP *** 2000 to 2015,the number of significant synergistic ES pairs decreased,while that of significant trade-off pairs *** the changes of ESBs in the eco-functional areas,the results indicated that the indirect loss of these ESs from forest and grassland due to urban expansion should be reduced in ecological development area(ESB 2)and multi ecological functional area(ESB 3).Meanwhile,crop planting structures and planting densities should be adjusted to reduce ES trade-offs associated with water conservation service in grain-producing area(ESB 4).Lastly,ESB-based ecofunctional zoning can be used to improve ecological restoration management strategies and optimize ecological compensation schemes in ecologically fragile area(ESB 1).

关键词： Ecosystem services Trade-offs Synergy Land use/land cover Climate change Principal component analysis(PCA) Chinese Loess Plateau

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聚硒醚催化环己烯氧化制备1,2-环己二醇

有机化学 2021年第4期41卷 1639-1645页

作者：黄杰军钱蓉蓉王爽曹洪恩扬州大学园艺与植物保护学院江苏扬州225009 江苏旅游职业学院江苏扬州225127 江苏扬农化工集团有限公司江苏扬州225009

开发了一种一步合成聚硒醚的新方法,该材料可用于催化环己烯二羟化合成重要的化工中间体环己二醇,是一种高效并可回收的催化剂.有趣的是,该材料在分子层面的独特结构,使得相关反应以自由基机理进行,并可使用分子氧作为部分氧化剂,这与... 详细信息

开发了一种一步合成聚硒醚的新方法,该材料可用于催化环己烯二羟化合成重要的化工中间体环己二醇,是一种高效并可回收的催化剂.有趣的是,该材料在分子层面的独特结构,使得相关反应以自由基机理进行,并可使用分子氧作为部分氧化剂,这与之前许多报道的硒催化反应有所不同.

关键词：硒聚硒醚环己烯 1,2-环己二醇绿色氧化

基于GIS的三维矿山爆破信息系统开发与应用

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金属矿山 2010年第1期39卷 138-141页

作者：池秀文赵旭黄解军武汉理工大学中国地质大学

数字矿山是矿山未来发展的必然趋势。对把G IS三维显示、空间分析功能融合到数字爆破做了探索性研究。利用数字高程模型(DEM)数据叠加遥感影像构建地表,结合Mu ltiPatch构建的地质地层,生成矿山模型,构建炮孔、爆破模拟,实现矿山爆破开... 详细信息

数字矿山是矿山未来发展的必然趋势。对把G IS三维显示、空间分析功能融合到数字爆破做了探索性研究。利用数字高程模型(DEM)数据叠加遥感影像构建地表,结合Mu ltiPatch构建的地质地层,生成矿山模型,构建炮孔、爆破模拟,实现矿山爆破开采过程中的爆破振动效应、爆破噪声污染、爆破及采场运输最优路径分别进行建模和分析。该系统对探索和研究矿山数字爆破技术对于矿山资源开发和利用具有重要的现实意义。

关键词：数字矿山爆破三维GIS 决策支持空间分析

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有机硒催化苯酚选择性氧化制对苯醌的研究

有机化学 2017年第8期37卷 2115-2118页

作者：王芳徐林孙诚徐清黄杰军俞磊扬州大学化学化工学院扬州22500 扬州工业职业技术学院扬州225127 江苏扬农化工集团有限公司扬州225009

苯酚选择性氧化制备对苯醌是一个有重要工业应用价值的反应.在有机硒催化下,以过氧化氢为氧化剂氧化苯酚,高选择性地生成了对苯醌.与已有技术相比,有机硒催化氧化反应可避免使用金属催化剂,从而避免产物中的金属残留.该反应过程清洁,不... 详细信息

苯酚选择性氧化制备对苯醌是一个有重要工业应用价值的反应.在有机硒催化下,以过氧化氢为氧化剂氧化苯酚,高选择性地生成了对苯醌.与已有技术相比,有机硒催化氧化反应可避免使用金属催化剂,从而避免产物中的金属残留.该反应过程清洁,不产生废弃物,并可在温和条件下发生.使用该方法,对苯醌选择性已经能达到91.6%.

关键词：有机硒催化苯酚氧化对苯醌对苯二酚

浅析“双减”政策下北京中小学生的物质文化遗产教育——以“中轴线进校园”活动为例

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北京文博文丛 2022年第2期 98-101页

作者：黄杰君北京第二外国语学院

世界遗产包括物质文化遗产(有形文化遗产)和非物质文化遗产(无形文化遗产)。其中,物质文化遗产又分为文化遗产、自然遗产、文化和自然混合遗产①文化遗产在促进文明交流互鉴及世界和平与可持续发展方面具有积极作用。

关键词：有形文化遗产物质文化遗产无形文化遗产中小学生世界遗产自然遗产可持续发展中轴线

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我国商法基本原则研究现状透视

北方经贸 2023年第7期 71-74页

作者：黄杰骏广西大学法学院南宁530004

商法基本原则高度概括并全面体现商法的本质和价值取向。国内学界对商法基本原则的讨论逾三十载,但围绕其核心内涵、确立标准和具体内容等方面尚未达成相对一致的意见,加之相关立法缺失和司法实务理念传统保守等诸多因素影响,可见学界... 详细信息

商法基本原则高度概括并全面体现商法的本质和价值取向。国内学界对商法基本原则的讨论逾三十载,但围绕其核心内涵、确立标准和具体内容等方面尚未达成相对一致的意见,加之相关立法缺失和司法实务理念传统保守等诸多因素影响,可见学界总体对商法基本原则的研究热情不高,理论研究有待加深。

关键词：商法基本原则现状标准

维普期刊数据库博看期刊

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异丙醇还原法制备甲基异丁基酮的研究

有机化学 2016年第9期36卷 2232-2235页

作者：徐林王芳黄杰军徐清俞磊范以宁南京大学化学化工学院南京210093 江苏扬农化工集团有限公司扬州225009 扬州大学化学化工学院扬州225002 扬州工业职业技术学院扬州225127

目前,国内丙酮产能过剩.将丙酮转化为市场需求较大的高附加值产品,具有实际的应用价值.甲基异丁基酮(MIBK)是重要的工业中间体,有广泛的用途和广阔的市场.因此,利用丙酮为原料合成甲基异丁基酮,有巨大的工业应用前景.报道了以丙酮为原料... 详细信息

目前,国内丙酮产能过剩.将丙酮转化为市场需求较大的高附加值产品,具有实际的应用价值.甲基异丁基酮(MIBK)是重要的工业中间体,有广泛的用途和广阔的市场.因此,利用丙酮为原料合成甲基异丁基酮,有巨大的工业应用前景.报道了以丙酮为原料,通过缩合、还原等步骤合成MIBK的简便方法.与传统方法不同之处在于,该方法中还原丙酮缩合产物异丙叉丙酮(MO)时,并不使用较危险的氢气,而使用异丙醇作还原剂.还原剂氧化后产生的副产物丙酮可重新回收利用.通过反应条件的优化,可将MO转化率提高到95.8%,MIBK选择性达98.8%.反应还可以通过一锅两步法进行.

关键词：丙酮异丙叉丙酮催化还原甲基异丁基酮.