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Construction of the Evaluation Index System and Assessment on the Modern Agriculture Development of Bohai Rim
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作者 李宝玉 李刚 +1 位作者 潘月红 高春雨 《Agricultural Science & Technology》 CAS 2012年第10期2213-2218,共6页
[Objetive] To make clear the regional agricultural development level.[Method] To accelerate the process of modern agricultural development of Bohai Rim,the assessment index system of modern agriculture was established... [Objetive] To make clear the regional agricultural development level.[Method] To accelerate the process of modern agricultural development of Bohai Rim,the assessment index system of modern agriculture was established preliminarily and the data of provinces and cities in Bohai Rim was evaluated and analyzed,regarding the comprehensive development level of modern agriculture as general target and the input level of modern agriculture,the output level of modern agriculture,the social development level of countryside and the sustainable development level of agriculture as grading index.[Result] The results showed that Bohai Rim just entered the developmental stage of modern agriculture,with the integrated index of 0.585.Viewed from regional perspective,Beijing topped the others with the index of 0.798,which was followed by 0.694 of Tianjin,0.644 of Shandong,0.606 of Liaoning and Hebei province had the lowest value of 0.595.[Conclusion] Among all cities in this region,none of them reached at the developed level of modern agriculture.There were ten cities,which were mainly located in Shandong Province,were at the primary stage while the most of others were at the preliminary or initial stage. 展开更多
关键词 Modern agriculture ASSESSMENT bohai rim
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Land use change in Bohai Rim: a spatial-temporal analysis 被引量:7
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作者 ZHU Hui-yi, LI Xiu-bin, HE Shu-jin, ZHANG Ming (Institute of Geographic Sciences and Natural Resources Research, CAS, Beijing 100101, China) 《Journal of Geographical Sciences》 SCIE CSCD 2001年第3期305-312,共8页
Based on RS and GIS methods, land use information for 1985 and 1995 was acquired from TM images and analyzed. Then on both spatial and temporal aspects, this paper analyzes land use change in three provinces of Hebei,... Based on RS and GIS methods, land use information for 1985 and 1995 was acquired from TM images and analyzed. Then on both spatial and temporal aspects, this paper analyzes land use change in three provinces of Hebei, Shandong and Liaoning and two municipalities of Beijing and Tianjin in the Bohai Rim covering the period of 1985 to 1995. The extent, rate, areal difference and trend of various types of land use changes in the region, as well as spatial changes of major types of land use, their distribution characteristics and regional orientation are revealed. The regional characteristics of land use are elaborated, so as to provide effective policy support for sustainable land use in the area around the Bohai Bay. 展开更多
关键词 bohai rim land use change spatio-temporal analysis
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Regional carrying capacity: case studies of Bohai Rim area 被引量:4
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作者 Yu Dan-lin Mao Han-ying 《Journal of Geographical Sciences》 SCIE CSCD 2002年第2期54-62,共9页
Carrying capacity research has been carried out for a long time. However, synthesized carrying capacity researches based on systematic views began only in the 1970s. There is even less work done in China. This paper t... Carrying capacity research has been carried out for a long time. However, synthesized carrying capacity researches based on systematic views began only in the 1970s. There is even less work done in China. This paper tries to address both synthesized carrying capacity research and its utilization in China. State spaces method from the systematic science was borrowed to construct the conceptual model of regional carrying capacity. Based on the conceptual model and the surveys in the Bohai Rim area, we construct a representative indicators system for quantifying regional carrying capacity in the Bohai Rim. While employing system dynamic models we simulated the evolving trend of both the regional carrying states and regional carrying capacity from 1999 to 2015. The results proved the statement that Bohai Rim is overall over-capacity for a long time and will be over-capacity in the foreseeable future. Among all the restriction factors, water shortage and environmental pollution stand out to be the two primary obstacles for Bohai Rims sustainable development. Regional differentiation analysis further indicates that coastal areas of the Bohai Rim burden more than its overall level. However, Shandong province shows some good signs in addressing the regional carrying capacity issues. The research is successful in addressing the quantification of regional carrying capacity issues, but nonetheless it needs further refinery and more information. 展开更多
关键词 regional carrying capacity regional carrying state bohai rim area state space
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Influencing Factors of Total Factor Energy Efficiency in Bohai Rim Region Based on DEA-Tobit Model 被引量:1
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作者 Weifeng Gong Xiaohong Qi +2 位作者 ChuanhuiWang Wenwen Li Yang Xu 《Energy Engineering》 EI 2022年第4期1663-1679,共17页
Bohai Rim region is an important economic development area and a large carbon emission area in China.It is of great significance to explore the total factor energy efficiency and its influencing factors for the low ca... Bohai Rim region is an important economic development area and a large carbon emission area in China.It is of great significance to explore the total factor energy efficiency and its influencing factors for the low carbon transformation and high-quality development of the Bohai Rim region.Based on the total factor energy efficiency framework,the DDF-DEA model was used to calculate the total factor energy efficiency,and the internal and external differences of the total factor energy efficiency were further analyzed.The internal and external influencing factors were determined by ML index method and classical endogenous growth theory,and then the Tobit panel model was used to empirically analyze the action mechanism of all influencing factors of total factor energy efficiency in the Bohai Rim region.The results show that the pure technical efficiency,scale efficiency and technological progress among the internal influencing factors contribute to the improvement of energy efficiency in the Bohai Rim region.Industrial structure,industrial internal structure and ownership structure inhibit the improvement of energy efficiency.Energy consumption structure and energy endowment also have a negative impact on energy efficiency.Therefore,measures such as promoting technological progress,adjusting economic structure and optimizing energy structure will effectively improve total factor energy efficiency in the Bohai Rim region. 展开更多
关键词 Total factor energy efficiency influencing factors bohai rim region DEA-Tobit model ML index method
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Reclamation-oriented spatiotemporal evolution of coastal wetland along Bohai Rim,China
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作者 Fan Wei Mei Han +4 位作者 Guangxuan Han Min Wang Lixin Tian Jiqian Zhu Xianglun Kong 《Acta Oceanologica Sinica》 SCIE CAS CSCD 2022年第9期192-204,共13页
Coastal wetlands are located in the ecotone of interaction between the land surface and sea,and anthropogenic activities extensively interfere with these wetlands through the reclamation of large tidal wetlands and de... Coastal wetlands are located in the ecotone of interaction between the land surface and sea,and anthropogenic activities extensively interfere with these wetlands through the reclamation of large tidal wetlands and destruction of the function of the ecosystems.In this study,we investigated the dynamic evolutionary characteristics of the Bohai Rim coastal area over the past 40 years using the Modified Normalized Difference Water Index,the fractal dimension,object-oriented classification,the land-use transfer trajectory,and regression analysis.Additionally,we quantified and monitored the evolution of reclamation and analyzed the correlation between reclamation and coastal wetlands based on 99 Landsat-2,-5,and-8 images(at 60 m and 30 m spatial resolution) over the period 1980–2019.The results are as follows.(1) The coastline of the Bohai Rim increased by 1 631.2 km from 1980 to2019 with a zigzag variation.The artificial coastline increased by 2 946.1 km,whereas the natural coastline decreased by 90%.(2) The area of man-made wetlands increased by 3 736.9 km~2,the area of construction land increased by 1 008.4 km~2,and the natural wetland area decreased by 66%.The decrease of tidal flats is the main contributor to the decrease of natural wetland area(takes account for 91.1%).Coastal areas are affected by intense human disturbance,which was taken place across a large area of tidal flats and caused the landscape to fragment and be more heterogeneous.The coastal zone development activities were primarily concentrated in the southern Laizhou Bay,the Yellow River Delta,the Bohai Bay,the northern Liaodong Bay,and the Pulandian Bay.The solidified shorelines and increase in sea level have resulted in intertidal wetlands decreasing and impaired wetland ecology.(3) There is a good agreement between reclamation and the size of the coastal wetlands.Both land reclamation and the reduction in coastal wetland areas are significantly related to the population size,fishery output value,and urbanization rate.In summary,human activities,such as the construction of aquaculture ponds and salt pans,industrialization,and urbanization,are the primary forces that influence the environmental changes in the coastal region.This study is beneficial for establishing and improving the systems for the rational development and utilization of natural resources,and provides theoretical references for restoring wetland ecology and managing future reclamation activities in other coastal zone-related areas. 展开更多
关键词 bohai rim coastal wetlands land reclamation evolutionary mechanisms coastal management
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Relationship between Industrial Coupling Coordination and Carbon Intensity in the Bohai Rim Economic Circle
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作者 Mei Song Liyan Zhang +2 位作者 Mingxin Zhang Dandan Li Yaxu Zhu 《Energy Engineering》 EI 2021年第1期143-161,共19页
Coordinated development of new high-tech industries and traditional industries is crucially important for economic growth and environmental sustainability,and it has become a focus of academic and governmental bodies... Coordinated development of new high-tech industries and traditional industries is crucially important for economic growth and environmental sustainability,and it has become a focus of academic and governmental bodies.This study establishes the comprehensive evaluation index system of high-tech industries and traditional industries,and uses the method of principal component analysis,coupling and coupling coordination degree model to determine the level of industry coordinated development.Then,Pearson correlation test is used to further analyze the correlation between regional industrial coupling coordination and carbon intensity of the seven provinces in the Bohai Rim Economic Circle(BREC).The results are as follows.(1)There is a negative correlation between industrial coupling coordination and carbon intensity.(2)The degree of industrial coordination of Beijing,Tianjin,and Shandong is significantly higher than other provinces in the BREC,as both the high-tech industries and traditional industries of these three provinces have reached a high level of development and achieved high coupling.The high-tech industries of the three provinces show positive changes,whereas the traditional industries show negative changes,which indicates that the new high-tech industries are driving the upgrading of the traditional industries by the application of high technologies.(3)From 2011 to 2016,the number of provinces with a low degree of high-tech and traditional industrial coordination fell from three to one.The traditional industries in Hebei and Inner Mongolia have been upgraded by strengthening their technological innovation with the introduction of rapid high-tech industrial development.These findings are a useful reference for regional industrial coupling coordination and carbon emission reduction. 展开更多
关键词 Industrial coupling coordination degree industrial coupling degree carbon intensity bohai rim Economic Circle
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Study on Emphases and Trend of Tianjin Urban Public Safety Planning from the View of Bohai Rim Megalopolis
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作者 Gong Yuan Xiao Yu Lu Li 《Journal of Civil Engineering and Architecture》 2013年第10期1203-1208,共6页
Nowadays urban public safety has been an important subject of study in urban planning study. And planners realized that a safe city is very important for sustainable development. Traditional urban public safety planni... Nowadays urban public safety has been an important subject of study in urban planning study. And planners realized that a safe city is very important for sustainable development. Traditional urban public safety planning begins to perfect the contents and method. And regional research is an important aspect in the improvement of new era urban public safety planning. This paper chooses Tianjin, the important city in Bohai rim area as the example for research. Tianjin urban public safety planning includes not only comprehensive disaster prevention and reduction, effectively preventing and reducing disasters, ensuring the safety of the life and property of the residents, but also sharing resources and facilities from the view of megalopolis, eliminating hidden area troubles, reducing whole environment risks and so on. 展开更多
关键词 Urban public safety planning TIANJIN bohai rim megalopolis emphases.
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Spatio-temporal Evolution of Marine Fishery Industry Ecosystem Vulnerability in the Bohai Rim Region 被引量:5
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作者 LI Bo JIN Xiaoming 《Chinese Geographical Science》 SCIE CSCD 2019年第6期1052-1064,共13页
The building of the ocean power strategy and the implementation of the blue agriculture plan urgently need to strengthen the sustainable development of marine fishery.Taking vulnerability as the starting point, this p... The building of the ocean power strategy and the implementation of the blue agriculture plan urgently need to strengthen the sustainable development of marine fishery.Taking vulnerability as the starting point, this paper constructs the vulnerability index system of marine fishery industry ecosystem from the aspects of sensitivity and response capacity, and combines the entropy method with the Topsis to comprehensively analyze the spatio-temporal evolution characteristics of vulnerability of marine fishery industry ecosystem in the Bohai Rim Region from 2001 to 2015.The results show that: 1) In the time dimension, from 2001 to 2015, the vulnerability of the marine fishery industry ecosystem in the Bohai Rim Region shows a fluctuant and degressive trend;2) In the spatial dimension, the spatial distribution of the marine fishery industry ecosystem vulnerability in the Bohai Rim Region presents the gradient characteristics which shows high vulnerability in the east and low vulnerability in the west.According to the evolution track of the system’s vulnerability level, the vulnerability of the marine fishery industry ecosystem is divided into ‘declining’ and ‘stable’ types of evolutionary structures;3) The development of marine fishery in the Bohai Rim Region needs to be derived from the marine fishery’s ecological environment and the industrial development mode and structure, which can improve the marine environment remediation efforts, optimize the marine fishery industry structure, vigorously focus on pelagic fishery, and enhance the introduction of marine fishery’s science and technology talents, etc.Then, the marine fishery’s development in the Bohai Rim Region will be moving in the green, circular and sustainable direction. 展开更多
关键词 MARINE FISHERY MARINE INDUSTRY ecosystem vulnerability SPATIO-TEMPORAL EVOLUTION bohai rim Region
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Clarifying the relationship between PM2.5 and ozone complex pollution and synoptic patterns in a typical petrochemical city in the Bohai Rim region of China:Implications for air pollution forecasting and control
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作者 Yongxin Yan Cong An +7 位作者 Junling Li Yuanyuan Ji Rui Gao Hong Wang Fanyi Shang Linlin Ma Xiaoshuai Gao Hong Li 《Atmospheric and Oceanic Science Letters》 2024年第6期45-52,共8页
Meteorological conditions are vital to PM_(2.5)and ozone(O_(3))complex pollution.Herein,the T-mode principal com-ponent analysis method was employed to objectively classify the 925-hPa geopotential height field of Don... Meteorological conditions are vital to PM_(2.5)and ozone(O_(3))complex pollution.Herein,the T-mode principal com-ponent analysis method was employed to objectively classify the 925-hPa geopotential height field of Dongying from 2017 to 2022.Synoptic patterns associated with four pollution types-namely,PM_(2.5)-only pollution,O_(3)-only pollution,Co-occurring of PM_(2.5)and O_(3)pollution,Non-occurring of PM_(2.5)and O_(3)pollution-were characterized at different time scales.The results indicated that synoptic classes conducive to PM_(2.5)-only pollution were“high-pressure top front”,“offshore high-pressure rear”,and“high-pressure inside”,while those conducive to O_(3)-only pollution were“offshore high-pressure rear”,“subtropical high”,and“high and low systems”.The Co-occurring of PM_(2.5)and O_(3)pollution were influenced by high pressure,and the Non-occurring of PM_(2.5)and O_(3)pollution were linked to precipitation and strong northerly winds.The variation in dominant synoptic patterns is crucial in the frequency changes of the four pollution types,which was further validated through the analysis of typical cases.Under the favorable meteorological conditions of high-pressure control with strong northerly winds or a subtropical high and inverted trough both with strong precipitation,there is potential to achieve coordinated control of PM_(2.5)and O_(3)in Dongying.Additionally,measures like artificially manipulating local humidity could be adopted to alleviate pollution levels.This study reveals the importance of comprehending the meteorological factors contributing to the formation of PM_(2.5)and O_(3)complex pollution for the improvement of urban air quality in the Bohai Rim region of China when emissions are high and the concentration of air pollutants exhibits high meteorological sensitivity. 展开更多
关键词 Synoptic classification T-mode principal component analysis Complex air pollution Correlation analysis bohai rim region
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Spatio-temporal characteristics of rural settlements and land use in the Bohai Rim of China 被引量:50
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作者 YANG Ren LIU Yansui +1 位作者 LONG Hualou QIAO Luyin 《Journal of Geographical Sciences》 SCIE CSCD 2015年第5期559-572,共14页
Based on multiple remote-sensing image interpretation and classification, and economic and social data, this study focused on rural settlement and land use change amidst rapid urbanization. Rural settlements, spatial ... Based on multiple remote-sensing image interpretation and classification, and economic and social data, this study focused on rural settlement and land use change amidst rapid urbanization. Rural settlements, spatial and temporal patterns of land use and influ- encing factors in the Bohai Rim were explored within 5x5 km grid cells, as per GIS spatial analysis and geostatistical analysis. Results show that the spatial distribution of rural settle- ments in the Bohai Rim is remarkably varied. The number of rural settlement sites in a 5x5 km grid cell exceeding 5.0 are distributed in a six-area pattern in the Bohai Rim; rural settlement dispersion is particularly high in agricultural regions in south Hebei and southwest Shandong, suggesting rural settlement density keeps increasing from northeast to southwest, charac- terized by high density and dispersed spatial distribution in traditional agricultural regions. Furthermore, rural settlements show dramatic spatial differences in terms of distribution and dynamic change degrees in the Bohai Rim. In terms of spatial distribution, rural residential land is always extensive in plains, with a high density of rural settlements, on the North China Plain in particular, and rural residential land in the south of Shandong province is also exten- sive, with most rural settlement land use areas in the 5x5 km grid cells exceeding 3 km2. However, traditional agricultural regions have underdeveloped economies, industrialization and tertiary industries, characterized by low urbanization rates, with farmers not feeling as- similated in rural or urban areas. In terms of the temporal sequence, urban expansion rapidly promotes the transformation of rural residential lands in rural-urban transitional belts of pro- vincial capital or prefecture-level city into urban lands, and in traditional rural areas, residen- tial lands are growing. The natural environment, transportation conditions, economic devel- opment and farmers' incomes all have effects on type of land use change and pattern of rural settlements. It is a core objective for future rural development to reconstruct a rational spatial pattern of villages or towns and well-organized village-town systems, build central villages, key towns or central towns, optimize or reconstruct production, living and eco-space of rural areas. It is of significance for rural geographical research to further interpret and explore spatial reconstruction theory. 展开更多
关键词 rural residential lands influence mechanism rural geography bohai rim China
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Process and cause of urban-rural development transformation in the Bohai Rim Region, China 被引量:25
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作者 LIU Yansui HU Zhichao LI Yuheng 《Journal of Geographical Sciences》 SCIE CSCD 2014年第6期1147-1160,共14页
China's reform and opening-up policy has brought the country a great development opportunity. The high-speed growth of the economy not only led China to a period of industrialization, urbanization, informatization an... China's reform and opening-up policy has brought the country a great development opportunity. The high-speed growth of the economy not only led China to a period of industrialization, urbanization, informatization and agricultural modernization, but also exacerbated the situation of the urban–rural dual structure. Based on the review of current studies, we first used the analytic hierarchy process(AHP) method to evaluate the urban–rural development and transformation level by population transformation index, land transformation index, industrial transformation index and social transformation index between 1996 and 2012 around the Bohai Rim Region. Then, based on the results of each index, we used the exploratory spatial data analysis(ESDA) method to investigate the spatial autocorrelation of the change in the urban–rural development transformation index during the 16-year period using Global Moran's I index and Local Moran's I index. Finally, we investigated the mechanism of change of the urban–rural development transformation index at county level, summarizing five main factors:(1) the radiation from the surrounding big cities,(2) the acceleration of the urbanization process,(3) the upgrading of the industrial structure,(4) the publishing and implementation of a macro development strategy and regional policy, and(5) natural factors such as topology. 展开更多
关键词 urban–rural development transformation urbanization village-town construction bohai rim Region analytic hierarchy process ESDA
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Spatiotemporal measurement of urbanization levels based on multiscale units: A case study of the Bohai Rim Region in China 被引量:1
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作者 赵敏 程维明 +1 位作者 刘樯漪 王楠 《Journal of Geographical Sciences》 SCIE CSCD 2016年第5期531-548,共18页
Urbanization is a complex process reflecting the growth, formation and develop- ment of cities and their systems. Measuring regional urbanization levels within a long time series may ensure healthy and harmonious urba... Urbanization is a complex process reflecting the growth, formation and develop- ment of cities and their systems. Measuring regional urbanization levels within a long time series may ensure healthy and harmonious urban development. Based on DMSP/OLS night- time light data, a human-computer interactive boundary correction method was used to ob- tain information about built-up urban areas in the Bohai Rim region from 1992 to 2012. Con- sequently, a method was proposed and applied to measure urbanization levels using four measurement scale units: administrative division, land-sea location, terrain feature, and geomorphological types. Our conclusions are: 1) The extraction results based on DMSP/OLS nighttime light data showed substantial agreement with those obtained using Landsat TM/ETM+ data on spatial patterns. The overall accuracy was 97.70% on average, with an average Kappa of 0.79, indicating that the results extracted from DMSP/OLS nighttime light data were reliable and could well reflect the actual status of built-up urban areas. 2) Bohai Rim's urbanization level has increased significantly, demonstrating a high annual growth rate from 1998 to 2006. Areas with high urbanization levels have relocated evidently from capital to coastal cities. 3) The distribution of built-up urban areas showed a certain degree of zonal variation. The urbanization level was negatively correlated with relief amplitude and altitude. A high level of urbanization was found in low altitude platforms and low altitude plains, with a gradual narrowing of the gap between these two geomorphological types. 4) The measure- ment method presented in this study is fast, convenient, and incorporates multiple perspec- tives. It would offer various directions for urban construction and provide reference values for measuring national-level urbanization. 展开更多
关键词 nighttime light data urbanization level multiscale units bohai rim
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Integration of industry cooperation development research in Bohai Economic Rim
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作者 Xing Junwei 《International Journal of Technology Management》 2016年第1期64-66,共3页
Integrated development of industrial cooperation is the core content in the Bohai economic rim.Industrial structure convergence of Bohai economic rim mainly exist in macro three industries while it rarely exist in the... Integrated development of industrial cooperation is the core content in the Bohai economic rim.Industrial structure convergence of Bohai economic rim mainly exist in macro three industries while it rarely exist in the manufacturing industry and other internal meso level. Learning from changing tendency, industrial structure convergence in the five provinces and municipality in the Bohai Economic Rim tend to be increasingly intense. For integration of industry cooperation development in Bohai Economic Rim, it is faced with massive separation, industrial development convergence and is restricted by institutional and ideological barriers. As strategic choice based on interest tending, integration of industry cooperation development in Bohai Economic Rim should be further integrated on development concept of industrial transformation to promote institutional system of the integration of industrial development and optimize the industrial layout and division system of Bohai economic rim. 展开更多
关键词 bohai rim INDUSTRY INTEGRATION
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Study on the Exploitation of Bohai Sea Ice as Freshwater Resources
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作者 Y.B. Lin Y.J.Xu +3 位作者 W.Gu S.Yuan D.Y.Bu J.Tao 《Journal of Environmental Science and Engineering》 2011年第7期805-811,共7页
Water shortage is a major issue in northern China. With the transfer of China's economic center from south to north, Circum-Bohai Economic Circle has gradually formed and developed as the third pole of China's econo... Water shortage is a major issue in northern China. With the transfer of China's economic center from south to north, Circum-Bohai Economic Circle has gradually formed and developed as the third pole of China's economy after Yangtze River Delta and Pearl River Delta, the problem of water has inevitably become more and more serious. South-to-North Water Diversion and Sea Water Desalination are helpful to solve this dilemma, but some difficulties appeared during the course of the two projects. By contrast, sea ice desalination can be considered as a third way to alleviate freshwater crisis in Bohai Rim. Firstly, the amount of sea ice in Bohai Sea is as much as 1.27 billion m3 even in normal years. Then the salinity of sea ice is only 1/4 to 1/7 as that of sea water. And furthermore, desalinized water of sea ice can meet national water quality standard for drinking. Purposely use the abundant sea ice resources as water source for industry, agriculture and living is very likely to open a new path for the solution of freshwater shortage, which can promote rapid and healthy development of Circum-Bohai Economic Circle. 展开更多
关键词 bohai rim south-to-north water diversion sea ice resources desalination.
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环渤海传统民居谱系研究思路与方法
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作者 李世芬 况源 +1 位作者 赵嘉依 于璨宁 《世界建筑》 2024年第7期14-21,共8页
环渤海地区在人文地理、自然气候以及社会经济等方面具有典型特征,以往有关该区域的民居研究多针对内陆或分散展开,缺乏对民居文化挖掘及其现代传承的系统研究。本文从环渤海整体视角展开,提出环渤海传统民居谱系的概念,采用建筑类型学... 环渤海地区在人文地理、自然气候以及社会经济等方面具有典型特征,以往有关该区域的民居研究多针对内陆或分散展开,缺乏对民居文化挖掘及其现代传承的系统研究。本文从环渤海整体视角展开,提出环渤海传统民居谱系的概念,采用建筑类型学、文化地理学、方言语系分区以及数据统计分析等定量、定性方法,结合课题研究进展与阶段成果,从民居谱系区划特征与关联机制、地域民居体系等方面,探讨了环渤海传统民居谱系研究的整体性技术框架及其实现途径,以期指导相关研究。所取得阶段成果有助于推进、深化研究内容,进而形成整体性成果,以弥补传统分散研究的缺憾,并为地域文化保护、传承和乡村人居环境提升提供技术支撑。 展开更多
关键词 传统民居 环渤海地区 谱系构建
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环渤海地区空气质量时空变化特征及动态预测 被引量:1
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作者 王宇蝶 滕泽宇 +1 位作者 陈智文 张清 《中国环境监测》 CAS CSCD 北大核心 2024年第1期68-78,共11页
基于环渤海地区2017—2021年各城市空气质量指数(AQI)、污染物浓度与社会经济数据,利用数理统计、克里金插值法对环渤海地区AQI与污染物浓度的时空变化特征进行分析,运用皮尔逊相关性分析方法探讨AQI与污染物浓度、社会经济因素的相关关... 基于环渤海地区2017—2021年各城市空气质量指数(AQI)、污染物浓度与社会经济数据,利用数理统计、克里金插值法对环渤海地区AQI与污染物浓度的时空变化特征进行分析,运用皮尔逊相关性分析方法探讨AQI与污染物浓度、社会经济因素的相关关系,采用时间序列预测模型对2022年6月—2023年12月空气质量及污染物浓度进行预测。结果表明:环渤海地区AQI及污染物浓度大致呈逐年降低的趋势。AQI的逐月变化呈“W”形,O_(3)浓度的年内变化呈倒“V”形,其余污染物则呈现与O_(3)相反的变化趋势。AQI大致呈现西南高、东北低的空间分布特点,而污染物浓度分布具有明显的空间差异。环渤海地区5个代表性城市的AQI类别以良好为主,冬季首要污染物主要为PM_(2.5)、PM10,夏季首要污染物以O_(3)为主。人口数量是影响AQI的主要因素,城市园林绿地面积对AQI具有一定影响。预测结果显示,未来环渤海地区AQI、主要污染物浓度(O_(3)除外)均呈现出随时间的推移逐渐下降的变化趋势。 展开更多
关键词 空气质量 大气污染物 时空变化 时间序列预测 环渤海地区
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基于价值评估的环渤海地区生境质量时空演变与驱动力分析 被引量:1
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作者 鲁雅兰 徐文斌 +4 位作者 黄执美 孟伟庆 员浩帆 冯剑丰 王义东 《西南林业大学学报(自然科学)》 CAS 北大核心 2024年第1期67-78,共12页
利用环渤海2000—2020年土地利用产品、耦合生态系统服务价值模型、生态系统活力指数和InVEST生境质量模型评估环渤海海岸带地区生境质量的时空演化格局,采用地理探测器模型对生境时空演化进行驱动因子探测和交互作用分析。结果表明:200... 利用环渤海2000—2020年土地利用产品、耦合生态系统服务价值模型、生态系统活力指数和InVEST生境质量模型评估环渤海海岸带地区生境质量的时空演化格局,采用地理探测器模型对生境时空演化进行驱动因子探测和交互作用分析。结果表明:2000—2020年环渤海地区整体生境质量等级处于中等且呈持续上升趋势,其中大连市、营口市、葫芦岛市和秦皇岛市生境质量较高;2000、2010、2020年环渤海地区生境质量处于中等等级面积占比依次为53%、57.4%、58.3%,等级由低、较低等级转化为中等等级的面积占比较大;2000—2020年环渤海地区生境质量变化主要受气温、高程、降水、路网密度和植被覆盖率等因子的影响,其中降水、气温和高程的影响程度较强,因子交互呈现双因子增强和非线性增强两种复合增强结果。研究结果可为海岸带地区生境修复、土地利用规划提供参考。 展开更多
关键词 环渤海 生境质量 时空异质性 驱动力分析 价值评估
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减污降碳协同效应空间关联关系及驱动因素研究
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作者 段冶 韩楠 +1 位作者 孙才志 李迪 《环境科学研究》 CAS CSCD 北大核心 2024年第11期2413-2422,共10页
剖析减污降碳协同效应的空间关联特征及成因是引导区域协同共治的前提,对推动新质生产力发展具有重要意义。基于耦合协调模型测度2011-2021年环渤海地区43个城市的减污降碳协同效应,应用社会网络分析法和二次指派程序探究其空间关联网... 剖析减污降碳协同效应的空间关联特征及成因是引导区域协同共治的前提,对推动新质生产力发展具有重要意义。基于耦合协调模型测度2011-2021年环渤海地区43个城市的减污降碳协同效应,应用社会网络分析法和二次指派程序探究其空间关联网络特征及驱动因素。结果表明:①研究期间,环渤海地区减污降碳协同效应的最高值为0.43,尚未进入高质量协调发展阶段,超过80%的城市处于降碳滞后型失调阶段。②减污降碳协同效应空间关联网络呈以天津市为主核心的“局部集聚”和“全局关联”并存特征,个体中心性差异突出,网络结构稳定性亟待提升。③各板块内部成员相对较为稳定,板块间存在更为显著的溢出效应。④地理邻近、产业结构合理化、能源利用、经济发展、节能环保、技术水平的差异对减污降碳协同效应空间关联关系的形成发挥促进作用,而通风系数的差异起抑制作用。研究显示,环渤海地区减污降碳协同效应的空间关联程度较低,建议通过强化核心主体的稳定作用、实施社团差异化的减排措施、拓展区域合作等路径推进减污降碳协同增效。 展开更多
关键词 减污降碳协同效应 空间关联网络 驱动因素 二次指派程序 夜间灯光数据 环渤海地区
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基于生态位理论的环渤海港口城市群演化:格局变迁与共生策略 被引量:1
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作者 李南 王筑城 《地理与地理信息科学》 CSCD 北大核心 2024年第3期80-87,共8页
以环渤海地区17个港口城市为研究单元,基于生态位理论构建港口城市群生态位评价体系,测算2003-2020年各港口城市的生态位态势、生态位重叠度、生态位适宜度及进化动量,揭示环渤海港口城市群的时空演化特征。结果表明:①环渤海港口城市... 以环渤海地区17个港口城市为研究单元,基于生态位理论构建港口城市群生态位评价体系,测算2003-2020年各港口城市的生态位态势、生态位重叠度、生态位适宜度及进化动量,揭示环渤海港口城市群的时空演化特征。结果表明:①环渤海港口城市群生态位格局仍以天津、青岛和大连为核心,但大连的发展态势趋弱,中等生态位水平的港口城市逐渐增强;山东省港口城市呈现出更强的发展动能,而辽宁省港口城市则趋于弱势。②环渤海港口城市群内部竞争较大,但有所缓和,多数中等生态位的港口城市由于发展同质化而导致生态位重叠度较高。③环渤海港口城市群整体生态位适宜度呈下降趋势,进化动量仍较高,说明整个港口城市群的共生进程仍有较大潜能。最后针对不同港口城市制定基于生态位的共生策略,包括生态位扩张、生态位错位和生态位协调,为环渤海港口城市群的演化和共生提供可行路径。 展开更多
关键词 港口城市 生态位 演化 格局 共生 环渤海地区
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环渤海地区环境规制强度与土地利用净碳排放量耦合协调的时空格局演化分析
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作者 李一楠 林景曜 +5 位作者 王强 庄星辉 张琦琦 陈达荃 周婷 党牛 《福建师范大学学报(自然科学版)》 CAS 北大核心 2024年第3期29-39,共11页
环渤海地区是我国减排降碳的重点区域。基于2005—2020年环渤海地区3省2市共43个城市土地利用与城市面板数据,分析环境规制强度与土地利用净碳排放的时空格局演变特征及其耦合协调情况,并进一步探究影响该地区净碳排放的主要驱动因素。... 环渤海地区是我国减排降碳的重点区域。基于2005—2020年环渤海地区3省2市共43个城市土地利用与城市面板数据,分析环境规制强度与土地利用净碳排放的时空格局演变特征及其耦合协调情况,并进一步探究影响该地区净碳排放的主要驱动因素。结果表明:(1)环渤海地区环境规制与净碳排放量耦合程度不高,环境规制的增强滞后于区域净碳排放量的增长,环境规制对地区净碳排放的约束性不强。(2)净碳排放量与环境规制强度均呈现中部高、北部低的空间分布格局,这与各城市职能定位相符,北部地区作为重要的“生态长城”,高能耗高污染企业鲜有分布。(3)环境规制有效地遏制环渤海地区净碳排放,通过分析发现,环境规制强度、经济活动、能源消耗强度、产业结构与科技投入是影响环渤海地区净碳排放量差异的主要驱动因素。 展开更多
关键词 环境规制 净碳排放 耦合协调 时空格局 环渤海地区
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