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  • “交旅”融合下旅游经济与高速交通协调发展分析——以关中平原城市群为例

    Subjects: Geosciences >> Geography submitted time 2024-07-11 Cooperative journals: 《干旱区地理》

    Abstract:关中平原城市群是我国西部旅游资源的重要聚集地,其众多旅游资源开发与社会经济均衡发展亟需高速交通基础设施的支撑。以关中平原城市群为研究对象,基于高速交通和旅游经济评价指标体系,运用熵值法、耦合协调模型等方法,剖析高速交通与旅游经济的综合发展水平,并从时空维度分析两者耦合协调的演化态势,最后探究不同高速交通方式与旅游经济协调发展的差异特征。结果表明:(1)关中平原城市群高速交通与旅游经济综合水平整体呈上升态势,且城市群内部发展存在较大差异。(2)城市群高速交通和旅游经济尚未形成明显协调发展格局,其耦合协调度在时序上呈逐步上升趋势,在空间上逐步向“一圈一轴三带”格局演化。(3)不同的高速交通对系统协调程度和旅游经济边际效应存在明显差异,且与旅游经济的耦合协调度也不同。

  • 公园绿地与城市功能空间关系及影响因素分析——以乌鲁木齐市为例

    Subjects: Geosciences >> Geography submitted time 2024-05-31 Cooperative journals: 《干旱区地理》

    Abstract:公园绿地和城市功能空间是城市空间的组成部分,研究公园绿地与城市功能空间耦合协调关系及其影响因素,对优化公园绿地合理布局,促进城市功能空间协同发展具有重要意义。以乌鲁木齐市中心城区为研究对象,运用核密度分析、标准差椭圆、耦合协调度模型和地理探测器等方法,在分析公园绿地与城市功能空间分布格局的基础之上,进一步探析二者空间的耦合协调关系及其影响因素。结果表明:(1)公园绿地与城市各功能空间形成了内密外疏、圈层式递减、向西北方向扩展的空间聚集特征。(2)公园绿地与城市各功能空间的分布重心均与城市中心发生了一定程度的偏离。公园绿地、居住空间、交通运输空间、公共服务空间呈西北—东南方向分布。休闲娱乐空间、商业空间呈东北—西南方向分布。(3)公园绿地与城市各功能空间耦合协调的主导类型为中度失调型,耦合协调度呈现出“中部高、东西两侧和南北两翼低”的空间分异特征。其中,人口因素、交通条件是影响公园绿地与城市各功能空间耦合协调度的主要因素,社会经济则是次要因素。

  • 宁夏城市建设用地节约集约利用与高质量发展研究

    Subjects: Geosciences >> Geography submitted time 2024-05-31 Cooperative journals: 《干旱区地理》

    Abstract:当前中国进入高质量发展阶段,缓解城市快速扩张伴随的土地利用粗放问题对城市可持续发展具有重要意义。现有研究多单方面关注城市建设用地节约集约水平或高质量发展状态,较少讨论两系统间的耦合协调关系。通过构建多维指标体系,测度2018年宁夏22个区县城市建设用地节约集约利用水平和高质量发展状态,并采用耦合协调度、相对发展度和影响协调力分析两系统间的耦合协调关系。结果表明:(1)2018年宁夏城市建设用地节约集约水平呈现出“中部低、南北高”的分布态势,而高质量发展水平呈现出“西北高、东南低”的空间分布格局。(2)两系统耦合协调度空间上呈现出“中部低、南北高”的分布格局,宁夏大部分区县处于基本协调状态且两系统关系呈良性循环。(3)创新和安全子系统对两系统的耦合协调度普遍起反向阻滞作用;绿色和协调子系统对两系统的耦合协调度普遍起正向推动作用。研究结果可为黄河流域高质量发展情境下促进建设用地节约集约利用提供实证依据。

  • 近30 a 黄河流域中心城市空间扩展特征及启示

    Subjects: Geosciences >> Geography submitted time 2024-03-15 Cooperative journals: 《干旱区地理》

    Abstract:探究城市空间扩展特征,认识城镇用地开发效率,有助于科学践行城市开发边界和高质量发展政策。基于城市空间、人口和经济数据,采用扩展强度指数、差异指数和耦合协调度模型,分析1992—2020年黄河流域8个中心城市空间扩展数量和质量的时空特征及启示。结果表明:(1)中心城市平均扩展面积315 km2,下游城市扩展规模大于中上游,济南市、郑州市、西安市和银川市扩展强度较高。(2)各市空间扩展与人口、经济耦合关系呈下游向中上游、中游向上下游递减的分布特征,平均值分别由1992年0.42、0.19提升至2020年0.89、0.81,扩展质量整体向好。(3)城市空间扩展分异是自然区位、经济发展、政策条件等多方面综合驱动的结果。(4)严格落实流域高质量发展政策,科学践行城市开发边界,协调优化城市用地扩展与人口、经济之间相互关系,合理规划城市发展,是黄河流域中心城市实现高质量发展的重要路径。

  • 祁连山地区复合生态系统韧性时空演化及障碍因子识别

    Subjects: Geosciences >> Geography submitted time 2024-03-15 Cooperative journals: 《干旱区地理》

    Abstract:祁连山地区是我国重要的生态功能区,也是我国生态环境脆弱区之一,研究祁连山地区自然-经济-社会复合生态系统韧性,以期有效治理祁连山地区生态环境问题。构建三维空间矢量模型、耦合协调模型和障碍度模型,测度2007—2021年祁连山地区复合生态系统韧性和子系统耦合协调性,揭示影响复合生态系统韧性提升的障碍因子,并借助地理信息系统技术分析复合生态系统韧性的空间演化过程。结果表明:(1)祁连山地区复合生态系统韧性呈上升趋势,空间上呈现从东部逐渐向西部降低的趋势;自然子系统韧性呈下降趋势,空间上呈现中东部向西北部逐渐降低的趋势;经济子系统韧性呈上升趋势,且增速较快,高经济韧性集中分布于东部和北部;社会子系统韧性上升幅度不大,高社会韧性集中分布于东部。(2)祁连山地区复合生态系统韧性耦合度提升明显,已达到高水平耦合;耦合协调度呈波动上升,已达到中级协调等级。(3)自然子系统对复合生态系统韧性提升影响较大,来自经济子系统的指标障碍度提升明显。

  • 乡村旅游与农村人居环境的 关系及障碍因子诊断 ——以山西省为例

    Subjects: Geosciences >> Geography submitted time 2024-01-29 Cooperative journals: 《干旱区地理》

    Abstract:在构建乡村旅游与农村人居环境评价指标体系的基础上,运用层次分析法、耦合协调度模型等定量分析山西省11个地级市乡村旅游与农村人居环境的耦合协调关系,运用障碍度模型对其耦合协调关系的障碍因子进行诊断。结果表明:(1)各地级市乡村旅游水平、农村人居环境水平的区域差距较大,且二者之间存在明显的空间错位。(2)晋中、临汾和运城为中度耦合协调级乡村旅游领先型,晋城、长治和吕梁为中度耦合协调级同步型,太原和阳泉为中度耦合协调级乡村旅游滞后型,忻州和大同为勉强耦合协调级同步型,朔州为初级耦合协调级乡村旅游滞后型。(3)基础设施、公共服务、产业机构是限制山西省乡村旅游与农村人居环境耦合协调发展的关键障碍因子,且7个维度的障碍分布状况差异较大,各地级市的关键障碍因子并不一致。(4)山西省今后应加强基础设施建设、提升公共服务水平和优化乡村旅游供给,并结合各区域的耦合协调关系及障碍因子状况,采取合理措施推动乡村旅游与农村人居环境持续协调发展。

  • 中国农业农村现代化发展水平测度及其协调性研究

    Subjects: Geosciences >> Geography submitted time 2024-01-29 Cooperative journals: 《干旱区地理》

    Abstract:推进农业农村现代化是全面建设社会主义现代化强国的重大任务。通过构建评价指标体系测度20102020年中国30个省(市、区)的农业农村现代化发展水平并分析其时空特征,引入耦合协调度模型分析农业现代化与农村现代化协调性并探索其空间相关性,通过判断相对滞后类型发现农业农村现代化发展的短板。结果显示:(1)20102020年中国农业农村现代化、农村现代化和农业现代化发展水平均为波动上升趋势;农业农村现代化中高和高水平等级小范围集聚在沿海地区,其余地区则均为中低和低水平等级;农业现代化发展水平和农村现代化发展水平空间分布差异较大。(2)农业现代化与农村现代化耦合协调度不断提高,但高值与低值集聚区对立趋势增强。(3)耦合协调等级优劣与农业农村现代化发展水平等级高低呈同向相关。初级协调及以上类型中上海、天津、北京表现为农业现代化发展水平相对滞后,山东、浙江、福建表现为农村现代化发展水平相对滞后,江苏、广东则较均衡发展;其他地区属于勉强协调及以下类型,表现为农村现代化发展水平相对滞后或农业现代化发展水平和农村现代化发展水平双低且失调。

  • 湟水流域西宁段产业结构升级与生态效率提升的耦合路径识别

    Subjects: Geosciences >> Geography submitted time 2024-01-07 Cooperative journals: 《干旱区地理》

    Abstract:协调好湟水流域产业结构升级与生态保护的关系,对推动黄河流域高质量发展、祁连山生态屏障建设及区域可持续发展意义重大。基于湟水流域西宁段7县区20102021年面板数据,运用Super-Undesirable SBM模型和扩展的耦合协调模型对产业结构升级、生态效率提升及两系统耦合协调水平进行测算评价,并借助坐标分类法对路径进行识别。结果表明:(1)样本区产业结构升级与生态效率提升水平区域差异显著,且呈现出中心凸出、两边薄弱的空间分布。(2)样本区内各县区整体耦合协调水平不高,区域差异显著,且大部分处于过渡耦合阶段,弹性较弱。(3)产业结构升级固化是该区域耦合协调水平较低的主要制约;耦合路径发展中应重点关注双低类型区域,同时避免陷入低水平协调陷阱。最后从内部突破资源约束与外部实现制度

  • 中国北方农牧区乡村重构特征及问题区域识别——以黄河流域内蒙古段为例

    Subjects: Geosciences >> Geography submitted time 2023-12-06 Cooperative journals: 《干旱区地理》

    Abstract:科学、有序重构是实现农牧区现代化和国家乡村振兴的重要路径。选取黄河流域内蒙古段这一典型北方农牧区乡村,基于乡村发展指标和计量模型,探究了乡村重构的特征并识别问题区域。结果表明:(1) 19902020年研究区乡村发展各维度的水平均得到不同程度的提升,总体上经济发展>空间利用>社会发展。(2) 19902020年研究区乡村经济重构总体先增强后减弱,空间重构则一直增强,社会重构整体滞后。乡村综合重构总体表现为南高北低、东高西低,其中经济重构地域差异较小,社会重构表现为南高北低;空间重构以河套平原较为剧烈。19902020年乡村经济-社会-空间重构的耦合度和协调度总体先升高后降低,在空间上表现为东高西低。(3) 乡村发展及重构的问题县域共6类11个,分布在研究区黄河以西、阴山以北,映射了地理环境、资源条件、区位交通、经济基础、区域政策等因素交互作用产生的综合影响,需结合地域实际分类施策。

  • 中亚五国水-能源-粮食-生态耦合关系及时空分异

    Subjects: Geosciences >> Hydrology submitted time 2023-05-30 Cooperative journals: 《干旱区研究》

    Abstract: To shed light on the complex transboundary water problems in Central Asia, a study on water-energy food- ecology (WEFE) system coordination was conducted from the regional and national levels based on a system coupling perspective. First, the WEFE evaluation index system for coupling and coordination was constructed, and then the coupling coordination degree model was applied to quantitatively evaluate the level of coordinated development of WEFE and its spatial and temporal evolution in Central Asia. The results show that: (1) In the last 20 years, the coupling degree of WEFE in Central Asia basically maintained a high level, and the coupling coordination degree showed a slow growth trend but was barely coordination. (2) The development level of coupling coordination varied greatly among countries, and the coupling coordination level of Kazakhstan was the best, albeit in primary coordination. Tajikistan and Kyrgyzstan barely performed coordination, and Turkmenistan and Uzbekistan were on the brink of misalignment. (3) Comparing the development levels of multiple systems, it was found that there was a significant lag in the food system in Tajikistan and Kyrgyzstan, a lag in the water system in Turkmenistan, and a lag in the energy system in Kazakhstan and Uzbekistan, which failed to achieve a good match among systems and affected the regional coordinated development to a certain extent. The results can provide a basis for decision-making on the synergistic development of WEFE in Central Asia and transboundary river development cooperation among countries.
     

  • Identification, classification and factors of contraction of urban development: A case of Gansu section of the Yellow River Basin

    Subjects: Geosciences >> Geography submitted time 2023-04-07 Cooperative journals: 《干旱区地理》

    Abstract: Under the background of promoting urbanization construction, with county towns serving as an important carrier, and integrated urban-rural development, with counties serving as the basic unit, scientifically identifying the contraction status and type of urban development of county-level units has become critical to its urbanization development classification policy. This study constructs urban development evaluation indicators with“population-land-economy”coupling interactions, identifies and classifies the urban development status of human activity entities in counties and county towns with the help of a quadrant map and coupling coordination model, and uses geographic detectors to discuss factors. Taking 62 county-level units in the Gansu section of the Yellow River Basin in China as examples for empirical verification, the results are as follows: (1) Most county-level units in the Gansu section of the Yellow River Basin have developed well, including 14 county-level units that have contracted in counties and 21 county-level units that have contracted in county towns, and most contractions are related to supply-side reform and deindustrialization. (2) The number of county towns of absolute expansion or absolute contraction in the region is more than that of counties; the urban development in each county town is unbalanced; the differentiation of increase and decrease is severe. (3) The level of social and economic development and the quality of life of people are important factors affecting the urban development of counties in the Gansu section of the Yellow River Basin, and the vitality of local development and the intensity of development and construction are important factors affecting the urban development of county towns. (4) The interaction law of the leading factors between the counties and county towns is manifested as contraction>expansion, and the combined effect of multiple factors is conducive to the improvement of the contraction development trend of the counties and county towns. A quadrant map based on the urban shrinkage type screening method is proposed, and the empirical results can provide a basis for the planning and construction guidance of county-level units in the Gansu section of the Yellow River Basin.

  • Spatial differentiation characteristics and influencing texture of the coupling coordinated development of agro-culture-tourism in China

    Subjects: Geosciences >> Geography submitted time 2023-04-07 Cooperative journals: 《干旱区地理》

    Abstract: Exploring the long-term fusion mechanism of agro-cultural-tourism is an important measure to realize the sustainable development of rural areas and implement the rural revitalization strategy. Therefore, the directory data representing the development level of agro-cultural-tourism are selected as the research object, and the coupling coordination degree and geodetector and Moran’s I index are comprehensively used to explore the spatial differentiation characteristics and influencing texture of the coupling coordinated development of agro-culturaltourism in China quantitatively. The following results are obtained. (1) The development level of agriculture, culture, and tourism is not synchronized and the spatial distribution is uneven, each forming its unique spatial distribution characteristics. (2) Under the market-oriented operation, the integrated development of agricultural culture and tourism shows the characteristics of“cultural tourism first, agriculture lags behind”, nearly half of the prefecturelevel cities are coordinated, and the spatial coupling coordination is general. (3) From the overall perspective, the agglomeration characteristics of the spatial coupling and coordinated development of agro-cultural-tourism are remarkable, and the local spatial autocorrelation exhibits a differentiated feature bounded by the Hu Huanyong line. (4) The explanatory strength of the spatial differentiation of the coordinated development of agro-cultural-tourism coupling is innovation level>sociocultural>physical geography>economic development. This finding reflects the initiative of people, especially the innovation ability, is the leading force to the coupling and coordinated development of agro-cultural-tourism. (5) The spatial differentiation of the coordinated development of agro-cultural-tourism coupling is affected by complex coupling effects of multiple factors, and the interaction effect between innovation level and sociocultural dimension is significantly higher than that between physical geography and economic development dimension. Thus, this study presents the following suggestions. First, promoting the primary, secondary, and tertiary industries in parallel, coordinating agro-cultural-tourism, carefully considering the capital going to the countryside, conducting rural planning in advance, and demarcating land development boundaries are necessary for rural development to prevent disorderly development and construction in the capital boom and avoid wasting a considerable amount of resources. Second, rural development must combine the cultural background and develop characteristic agriculture based on resource endowments; take the revitalization of talents as a guide; strengthen cultural, industrial, and agricultural technology innovations; and form a coordinated development pattern of“people-land-industry”.

  • Coupling coordination and spatiotemporal differences between water resources and agriculture cropping system in Xinjiang: A case of grain and cotton cropping systems

    Subjects: Geosciences >> Hydrology submitted time 2023-04-07 Cooperative journals: 《干旱区地理》

    Abstract: This study takes the grain and cotton cropping systems as an example to measure the development level of the water resource and agricultural cropping systems in Xinjiang, China to study its water resource endowment and agriculture industry development, respectively. Additionally, the two systems are combined to further analyze the coupling coordination and spatiotemporal differences of the water resources- agriculture cropping composite system (abbreviated composite system) in Xinjiang. Therefore, data related to water resources and agriculture cropping of 14 prefectures in Xinjiang from 2005 to 2019 were selected to measure the comprehensive development index of water resources, agriculture cropping, and composite systems using the entropy method. On the basis of the comprehensive development index of the composite system, this study further explores the coupling coordination trend and spatiotemporal evolution law of the composite system using the coupling coordination degree model and exploratory spatial data analysis, respectively. The following results are presented. (1) The comprehensive development index of the composite system in Xinjiang is spatially characterized by“high in the middle and low on both sides”. Among them, the level of comprehensive development index of the water resources system is higher than that of the agriculture cropping system and the growth trend of the agricultural plantation system is fast. Comparing the results of the composite development index of water resources and agriculture cropping systems from 2005 to 2019, this study found that the former has been developing at a higher level than the latter during the study period. However, the latter showed a faster growth trend than the former, resulting in a gradual reduction in the gap between the two systems. (2) The overall level of coupling coordination of composite systems in Xinjiang shows a development trend of“high in the north and low in the south, but the gap is gradually decreasing”. Additionally, the agriculture cropping system has gradually become a shortcoming that hinders the development of the coupling coordination of composite systems due to the differences among regions. (3) A significant spatial clustering characteristic of the coupling coordination degree of the composite system is also observed in Xinjiang, but its positive correlation shows a changing trend from strong to weak. The spatial clustering type is mainly“high-high and low-low”clustering, and the coupling coordination degree of the composite system shows spillover effects and is easily influenced by the neighboring areas. The results of this study have theoretical and practical implications for the sustainable use of water resources, the development of the agriculture cropping industry, and the benign coordination of the two in Xinjiang.

  • 黄河上游生态脆弱区复合生态系统韧性时空分异 ——以宁夏为例

    Subjects: Geosciences >> Geography submitted time 2023-03-13 Cooperative journals: 《干旱区研究》

    Abstract: Improving the disturbance resistance and restoration of ecologically fragile areas is an important part of ecological civilization construction. The key factors affecting ecological resilience were diagnosed with the help of coupling coordination model, correlation analysis, and obstacle model. Based on the economic, social, and natural multidimensional perspective of composite ecosystem resilience assessment model, using entropy method and GIS spatial analysis, in 2009-2019 Ningxia composite ecosystem resilience difference analysis was done. The results show that: (1) The resilience of Ningxia’s composite ecosystem is on the rise, but the overall level is low, and economic resilience grows the fastest. High economic resilience is densely distributed in the north, and high social resilience is centered in the city. High natural resilience is mainly distributed in the east, south, west, and north corners, and the northern composite ecosystem is more resilient than that in the central and southern regions. (2) The coupling degree of the composite ecosystem in Ningxia is relatively high, but the coordination degree is relatively low. The coupling and coordination degree improves slowly during the research period, and most districts and counties are still in a state of serious and moderate imbalance. (3) The economic structure shows a strong positive correlation with the economic potential, infrastructure, the improvement of people’s livelihood, and the natural environment. Population, environmental stress, and economic vitality in the criterion layer have a significant impact on the composite ecosystem’s resilience, while the index layer’s total energy consumption and the number of workers in the transportation, storage, and postal sectors have a significant impact on the resilience of the majority of districts and counties. In the future, it is necessary to actively play the positive synergistic effect of various influencing factors to rapidly improve the resilience of the composite ecosystem in Ningxia, to effectively help the ecological protection and the construction of a highquality pilot zone in the Yellow River.

  • 南疆地区水资源承载力及子系统性时空格局

    Subjects: Geosciences >> Hydrology submitted time 2023-03-13 Cooperative journals: 《干旱区研究》

    Abstract: The contradiction between supply and demand of congenital water shortage and acquired water supply in southern Xinjiang stems from the natural accumulation over time and the effects of human long- term production activities on the ecological environment, including its destruction. It is necessary to formulate a scientific and perfect water use plan to improve the contradiction between supply and demand. In order to assess the current state of water supply and demand in southern Xinjiang, a water resource carrying capacity evaluation index system based on the three aspects of water resources, social economy, and ecological environment was constructed using 24 indicators. The spatio-temporal evolution of water resource carrying capacity and coupling coordination between subsystems in southern Xinjiang from 2005 to 2020 was quantitatively evaluated based on the entropy weight- TOPSIS method and coupling coordination model. The results show that: (1) The overall carrying capacity of water resources in southern Xinjiang is low, and the carrying capacity of water resources in Bayingol Mongolian Autonomous Prefecture is good, however, the variation range is wide and the trend is unsteady. The overall carrying capacity of water resources in the Aksu and Kashgar regions showed a fluctuating upward trend, with similar growth rates. Compared with 2005, the comprehensive evaluation value of water carrying capacity in the two regions increased by more than 40% in 2020. The overall water carrying capacity of Kyzylsukol Autonomous Prefecture and the Hotan area showed a fluctuating and decreasing trend first and then slowly rising. The water carrying capacity of resources in the Hotan area fluctuated greatly. (2) From 2005 to 2020, the water-socio-economic-ecological environment in southern Xinjiang was in a low-level coupling stage, indicating that the degree of correlation between various subsystems was poor, and in 2020, the coupling coordination degree transitioned from serious uncoordinated to the basic uncoordinated stage, showing an overall upward trend and large upward space. Among them, Bayingol Mongolian Autonomous Prefecture has the best level of coupling and coordination between subsystems, and the type of mild dysregulation recession has increased from the mild dysregulated recession type to the endangered dysregulated recession type. The coupling coordination level in the other four states increased from the level of moderate imbalance recession to the level of mild imbalance recession. Combined with the comprehensive evaluation values of water resources, socioeconomic and ecological environment subsystems, Bayingol Mongol Autonomous Prefecture, Aksu region, and Kashgar region belong to the water resources lagging type. Kyzylsukol Autonomous Prefecture belongs to the socio-economic and ecological environment interaction lag type, and Hotan area belongs to the socio-economic lag type. (3) From the perspective of space, based on geographical differences, the coupling and coordination degree of the five prefectures in southern Xinjiang has a strong correspondence with it. The coupling coordination degree of water resources- socio-economic-ecological environment is better in the east than in the central and western regions. Bayingol Mongolian Autonomous Prefecture has the best level of coupling and coordination, and among the other four regions, Kyzylsukol Autonomous Prefecture has a slow increase in coupling and coordination due to its western border and complex geographical environment, while Aksu, Kashgar, and Hotan regions have similar change rates and stable growth trends.

  • 新疆陆路口岸与载体城镇发展的时空分异特征

    Subjects: Geosciences >> Geography submitted time 2023-02-27 Cooperative journals: 《干旱区地理》

    Abstract: The coordination development of land ports and port-counties is a key component of developing port economic belts with high quality. Using the entropy weight method and coupling coordination model, we analyze the spatiotemporal characteristics of the coupling coordination development of Xinjiang land ports and portcounties in China from 2009 to 2019. The findings are as follows: (1) The overall development of Xinjiang land ports and port-counties can be divided into two phases: one was oriented by land ports, and the other by portcounties. The land port development has moderated as the number of cargoes imported and exported has decreased. (2) The coupling coordination development of Xinjiang land ports and port-counties has improved and can be divided into three levels: sound coordinated development represented by the Alashankou port; primary coordinated development by the Baketu port; barely coordinated development by the Taykexkin port. (3) The Xinjiang land port development pattern is evolving into a new pattern with the Alashankou and Khorgas ports as its core and other land ports as its wings. However, some port-counties are antiquated, which restricts the further improvement of coordinated development

  • 山西省县域高质量发展与生态系统服务耦合的 时空演变特征

    Subjects: Geosciences >> Other Disciplines of Geosciences submitted time 2022-09-26 Cooperative journals: 《干旱区研究》

    Abstract: Based on the data of 107 counties and regions in Shanxi Province in 2000, 2005, 2010, and 2018, this paper constructs the evaluation index system of high-quality development in Shanxi Province, uses the InVEST model to calculate the ecosystem services of counties and regions in Shanxi Province, and analyzes the spatiotemporal coupling characteristics of the high-quality development system and ecosystem services of counties in Shanxi Province by using the coupling coordination model and elasticity coefficient method. The following results are presented. (1) The grade effect of cities has a significant impact on the level of high-quality development. The spatial differentiation law of high-quality development is strong, which roughly forms the north-south-middle three- level cores, and the polarization effect in the central region is prominent. (2) Ecosystem services in the study area have locking effects in time scale and spatial pattern. The temporal and spatial evolution characteristics are consistent with the topographic distribution of the study area, showing a stable“mirror L- shaped”spatial distribution pattern. (3) Ecosystem services in the study area generally lag behind high- quality development. From the perspective of the time change, the coupling level shows an upward trend. From the perspective of spatial pattern characteristics, ecosystem services and the high-quality development show the coordination main axis of“northeast-southwest.”(4) The coupling type of high-quality development and ecosystem services in the study area mainly changes in different directions, generally showing a retrogressive development trend. A “polarization”pattern, in which recession and lag types compete, is also observed, forming a convergent“S” type attenuation area. As an ideal model of coupling type, growth type is remarkably few in the study area.

  • 干旱区城市化与生态韧性的时空格局演化分析 ——以宁夏为例

    Subjects: Geosciences >> Geography submitted time 2022-08-09 Cooperative journals: 《干旱区地理》

    Abstract:快速城市化易引发各种生态问题,如何构建城市化与生态韧性的协调发展关系对于干旱区内陆城市的发展至关重要。结合遥感技术从韧性角度解读城市化与生态环境,以宁夏为研究区域,在构建城市化与生态韧性指数的基础上,运用耦合协调性和相对发展度模型对20052020年两者的耦合协调性进行研究。结果表明:(1)宁夏城市化水平提升较快,以银川市为中心的沿黄城市群灯光璀璨,而宁夏南部呈现众多面积较小零星分布的灯光像元。(2)宁夏生态韧性水平整体稳中有升。银川市生态韧性水平全区最高,吴忠市次之,石嘴山市、固原市和中卫市生态韧性水平则相对较低。(3)宁夏城市化与生态韧性耦合协调性稳步提升,除银川市和石嘴山市外,其余各市均经历了不同程度的失调期。(4)宁夏城市化和生态韧性的相对发展尚未达到理想上的等同。

  • 黄河流域城市化与生态系统服务价值协调性 及障碍因素研究

    Subjects: Geosciences >> Geography submitted time 2022-08-09 Cooperative journals: 《干旱区地理》

    Abstract:关注生态系统服务价值(Ecosystem service value,ESV)与城市化耦合协调互动关系,对黄河流域高质量发展大有裨益。文章运用熵权法、耦合协调模型、空间自相关模型,障碍度模型分析了城市化与ESV的耦合协调关系及主导障碍因素。结果表明(: 1)19952018年,黄河流域ESV发生了很大的改善,整体增加了33.05109元,且以调节服务为主导,草地、林地、耕地服务价值对总ESV贡献率较高。单位面积生态系统服务价值(PE)呈现南高北低、中游高上下游低的空间格局。(2)PE 与城市化耦合协调度(Coupling coordination degree,CCD)逐渐改善,轻度耦合协调增加了27.12%,严重失调类型减少了45.46%,耦合亚型从城市化滞后型转变为ESV滞后型;从空间上看,CCD呈现南高北低、中游优于上游和下游的空间格局,协调度具有显著的空间正相关性,存在明显的高-高和低-低集聚特征,高-高集聚区主要分布在ESV高且城市化水平相对较高的中游和下游地区,低-低集聚区主要分布在ESV较低的上游地区。(3)19952018年主导障碍因素未发生明显改变,ESV系统以调节服务为主,而城市化系统以经济子系统和社会子系统为主。基于此,应厘清ESV和城市化耦合协调关系,关注城市化进程对区域生态系统服务能力和生态安全格局的影响,实现流域整体优质协调发展。

  • 关中平原城市群“交通-产业-环境” 发展的动态演化特征分析

    Subjects: Geosciences >> Geography submitted time 2022-06-09 Cooperative journals: 《干旱区地理》

    Abstract:关中平原城市群是丝绸之路经济带的重要城市群。运用耦合协调度模型定量分析了关中 平原城市群20082019年交通、产业和环境三系统耦合协调发展关系的变化规律和时空分布特 征。结果表明:(1)城市群交通、产业和环境各子系统发展评价指数差异化提升,交通系统发展增 长率远超过其他两系统,产业和环境发展与交通系统的矛盾较为突出。(2)三系统综合发展指数空 间分布单极态势明显,城间发展水平差异加剧,其中西安市和咸阳市作为极热点城市存在,其余城 市为外围受辐射冷点区。(3)城市群耦合协调发展水平整体上趋于优化提升态势,但仍处于濒临失 调状态。其中,西安市一直处于高耦合协调的单极态势,但耦合协调度的城间差距逐渐缩小,耦合 协调度等级为协调等级的城市逐渐增多,趋于集中连片式分布。研究结果可以明确关中平原城市 群交通、产业和环境三系统耦合协调发展存在的问题,为高质量发展相关政策的制定提供一定的 参考依据。