Spatiotemporal evolution and driving forces of changes in rural settlements in the poverty belt around Beijing and Tianjin： a case study of Zhangjiakou city, Hebei Province

The rural settlement is one of important aspects to understand regional human-environment relationships. Zhangjiakou city, located in the poverty belt around Beijing and Tianjin, was used as an example to analyze the evolution of rural settlements during 1985–2010 through the use of statistical and spatial analysis methods. The results demonstrate the following:(1) the area of rural settlements expanded from 665.76 to 928.14 km2 during 1985–2010. Rural settlements in prefecture city of Zhangjiakou were significantly agglomerated in terms of their spatial distribution, which presented an approximately normal distribution over the entire period. Rural settlements were usually distributed within regions where the terrain niche had an elevation of between 900 and 1500 m, and a slope from 5? to 20?;(2) there were significant regional differences in the density and size distribution of rural settlements in Zhangjiakou. The density of rural settlements in 2010 was higher than that in 1985, while there was a clustered distribution of rural settlements in 2010. There was a significant high value cluster in the size distribution, and a local negative correlation between the size and density distribution of rural settlements in Zhangjiakou;(3) rural economic development, investment in agricultural technology, and infrastructure improvement played important roles in the evolution of rural settlements. There were spatial differences in the relationship between the distribution of rural settlements and socio-economic factors in Zhangjiakou. This study provides practical guidance for the achievement of urban and rural integration development and the promotion of a new form of countryside construction.

Analysis of Vegetable Production Trends and Dominant Varieties in Zhangjiakou City of Hebei Province

Based on the production data during 2008 and 2017 of 16 main vegetables in Zhangjiakou City of Hebei Province,the comparative advantage model was used to analyze the superior varieties in the main producing areas. The results indicate that there are seven main vegetable producing areas in Zhangjiakou City,and the development of main producing areas tends to become balanced: white radish,celery,leaf lettuce,and carrot of Shangyi,sweet pepper and tomato of Chongli,lettuce and Chinese cabbage of Kangbao,spinach,broccoli,carrots,and cauliflower of Guyuan,spinach and eggplant of Xuanhua,Chinese cabbage and lettuce of Zhangbei. These vegetables have a strong competitiveness.

Change of Ecological Footprint and Analysis of Ecological Sustainability——Taking Zhangjiakou City as an Example

This paper researches the ecological sustainability of Zhangjiakou City, Hebei Province, China, using the ecological footprint model. According to the study we find that Zhangjiakou City was in the situation of ecological deficit from 1990 to 2000 and the deficit had the enlarging tendency. In 1990 the per capita ecological footprint was 0.964 and the per capita ecological capacity was 0.5 l 8, thus it can be calculated that the per capita ecological deficit was 4）.446. However in 2000, the per capita ecological footprint increased to 1.068, at the same time the per capita eco- logical capacity decreased to 0.471, then the per capita ecological deficit in 2000 was 4）.597. Furthermore, this paper studies the ecological sustainability of the city from the changes of the ecological footprint of per 10,000 yuan GDP and the productivity of ecological system. Finally the authors point out the shortage of the model and the way to improve it.

Analysis on the Gale and Dust Weather in Zhangjiakou City on May 11,2011

On May 11,2011, the gale and dust weather appeared in Zhangjiakou City. By analyzing the conventional meteorological data, it was found that the gale and dust weather occurred by the combined effect of the cold air splitting from the bottom of the high-altitude cold vortex and the Mongolian cyclone. The strong cold advection in the middle and lower layers provided the gale weather with driving force. The humidity conditions at middle and lower layers in Zhangjiakou City and its upstream region contributed to the weather process. Finally, the strong and wide rise district provided a more favorable power condition for the maintenance and transmission of the dust to the eastern region.

The Development Status and Countermeasures of Foxtail Millet Industry in Zhangjiakou City Under the Background of the Constructing Two Districts of the Capital

Foxtail millet is drought-resistant and water-saving.It is a typical environmentally friendly crop with high economic and social benefits.In the context of constructing"Two districts of the capital",it is imperative to develop the foxtail millet industry in view of the ecological conditions of Zhangjiakou City.Based on the analysis of the development status of the foxtail millet industry in Zhangjiakou City,this study pointed out the current problems in the development of the foxtail millet industry in Zhangjiakou City,and put forward specific suggestions for the development of the foxtail millet industry in Zhangjiakou City in the future.

Zhangjiakou City

Zhangjiakou, a famous and historical, city in northwest Hebei Province, borders Beijing and Chengde in the east, Baoding in the south. Shanxi Province in the west, and Inner Mongolia in the northwest and north. The total area is 36, 873 square kilometers. The city is rich in natural resources, mineral resources in particular. There are more than 1, 200 proven deposits and reserves of 26 ores such as gold, silver, coal, iron. lead, zinc and copper are fairly rich. The reserves of gold, silver, zinc, manganese, phosphate, zeolite, graphite, lime. marble, tuff, emerald, bentonite,

Scenario simulation and landscape pattern dynamic changes of land use in the Poverty Belt around Beijing and Tianjin: A case study of Zhangjiakou city, Hebei Province

Land use/cover change has been recognized as a key component in global change and has attracted increasing attention in recent decades. Scenario simulation of land use change is an important issue in the study of land use/cover change, and plays a key role in land use prediction and policy decision. Based on the remote sensing data of Landsat TM images in 1989, 2000 and 2010, scenario simulation and landscape pattern analysis of land use change driven by socio-economic development and ecological protection policies were reported in Zhangjiakou city, a representative area of the Poverty Belt around Beijing and Tianjin. Using a CLUE-S model, along with socio-economic and geographic data, the land use simulation of four scenarios-namely, land use planning scenario, natural development sce- nario, ecological-oriented scenario and farmland protection scenario-were explored accord- ing to the actual conditions of Zhangjiakou city, and the landscape pattern characteristics under different land use scenarios were analyzed. The results revealed the following： （1） Farmland, grassland, water body and unused land decreased significantly during 1989-2010, with a decrease of 11.09%, 2.82%, 18.20% and 31.27%, respectively, while garden land, forestland and construction land increased over the same period, with an increase of 5.71%, 20.91% and 38.54%, respectively. The change rate and intensity of land use improved in general from 1989 to 2010. The integrated dynamic degree of land use increased from 2.21% during 1989-2000 to 3.96% during 2000-2010. （2） Land use changed significantly throughout 1989-2010. The total area that underwent land use change was 4759.14 km2, accounting for 12.53% of the study area. Land use transformation was characterized by grassland to for- estland, and by farmland to forestland and grassland. （3） Under the land use planning sce- nario, farmland, grassland, water body and unused land shrank significantly, while garden land, forestland and construction land increased. Under the natural development scenario, construction land and forestland increased in 2020 compared with 2010, while farmland and unused land decreased. Under the ecological-oriented scenario, forestland increased dra-matically, which mainly derived from farmland, grassland and unused land. Under the farm- land protection scenario, farmland was well protected and stable, while construction land expansion was restricted. （4） The landscape patterns of the four scenarios in 2020, compared with those in 2010, were more reasonable. Under the land use planning scenario, the land- scape pattern tended to be more optimized. The landscape became less fragmented and heterogeneous with the natural development scenarios. However, under the ecologi- cal-oriented scenario and farmland protection scenario, landscape was characterized by fragmentation, and spatial heterogeneity of landscape was significant. Spatial differences in landscape patterns in Zhangjiakou city also existed. （5） The spatial distribution of land use could be explained, to a large extent, by the driving factors, and the simulation results tallied with the local situations, which provided useful information for decision-makers and planners to take appropriate land management measures in the area. The application of the combined Markov model, CLUE-S model and landscape metrics in Zhangjiakou city suggests that this methodology has the capacity to reflect the complex changes in land use at a scale of 300 m×300 m and can serve as a useful tool for analyzing complex land use driving factors.

XO"of the Chinese A report on Jinma Group of Botou City, Hebei Province

Jinma XO: Uprising from China's Wine-making Industry With its Novelty Purity and Pecnliar

Rural Cooperative Economic Organized United Association: A Case Study of Baoding City of Hebei Province

Taking its development in Baoding City as an example, we introduced service fields of rural cooperative economic organized united association. It mainly includes setting up service platform and providing scientific and technological services; organizing economic and trade negotiation and exchange, and promoting farmer-supermarket partnership; providing financial services and solving fund-raising problems. In line with these fields, we analyzed existing problems: (i) regional development is unbalanced and organization lacks internal connection; (ii) the development in some counties (cities) is to be improved, and the promotion effect is not significant; (iii) there is shortage of talent and the innovation strength is not enough; and (iv) it lacks system and management lacks restriction mechanism. Finally, we put forward countermeasures and recommendations: strengthen propaganda and cultivate farmers' cooperative awareness; incorporate rural cooperative economic organized united association into formal system arrangement, and absorb professional talents; innovate upon organization system of rural cooperative economic organized united association and improve service methods; improve internal operating mechanism and innovate upon working contents of rural cooperative economic organized united association at new development background.

Leveraging Zibo Barbecue’s Success to Develop Hebei’s Culinary Brand:A Strategic Path

In 2023,Zibo barbecue culture exploded across the entire country,allowing people nationwide to experience and enjoy Zibo barbecue.This phenomenon injected new vitality into the economic development of Zibo.To promote the economic development of Hebei Province,this paper fully analyzes the reasons behind the popularity of Zibo barbecue,combines these insights with the characteristics of traditional cuisine in Hebei,and draws lessons from Zibo barbecue’s success as a business card for Zibo.The paper then outlines a strategy for building a culinary business card for Hebei.

Evolution of Landscape Pattern and Tourism Service Value in Zhangjiakou City

Zhangjiakou is a northern Chinese city that hosted the Beijing 2022 Winter Olympic Games. As an important ice and snow tourist destination, it is essential to investigate Zhangjiakou’s rate of landscape pattern change,the landscape ecological security level, and ecosystem service value, particularly the tourism ecological service value during its construction. With land use data from 2000 to 2020, this study comprehensively analyzed the dynamic changes in Zhangjiakou, including land use dynamics, the land use transfer matrix, landscape vulnerability,landscape disturbance, ecosystem service value, tourism ecological service value, and other aspects. The results show that the landscape pattern in Zhangjiakou was greatly disturbed from 2015 to 2018, and the landscape ecological security was threatened in the process of landscape pattern adjustment. By 2020, after the landscape pattern was adjusted and stabilized, the landscape ecological security was restored, and the ecosystem service value was significantly improved, especially the tourism ecological service value. The results of this study will play an important role in promoting the optimization of Zhangjiakou’s ice and snow landscape pattern and the improvement of tourism ecological value. In addition, it provides important lessons for the development of other ice and snow tourist destinations.

Single Zircon Pb-Evaporation Age of Shuiquangou Gold-Bearing Alkali-Intrusion in Zhangjiakou Area,Hebei Province

This paper deals with the forming age of the Shuiquangou gold-bearing alkaline rock with the help of the single zircon Pb-evaporation method. The apparent age (1607 - 1667Ma) got from crystalline zircon grain domains, where there exists an almost enclosed system, is in good agreement with zircon U-Pb conventional upper intercept age (1718 Ma), suggesting that the Shuiquangou gold-bearing alkali rock intruded at 1600- 1700 Ma ago.

京津冀城市群综合承灾能力时空异质性研究

基于2010—2020年京津冀城市群13个城市的调查数据,应用Kernel密度估计方法、空间自相关模型及Dagum基尼系数,分析不同时期京津冀城市群综合承灾能力时空动态演进分布格局及地区差异。结果表明:(1)在时间维度,2010—2020年京津冀城市群综合承灾能力总体呈现逐渐上升趋势,但京津冀城市群各市之间的承灾能力水平差距逐渐增大,区域整体呈现非均衡特征;(2)在空间维度,2010—2020年京津冀城市群综合承灾能力在空间分布上关联度较低,不存在显著的集聚或分散特征,但有局部地区产生聚集特点,属于“高-高”“低-低”空间聚集型城市较多,在此期间京津冀城市群综合承灾能力呈现空间集聚与空间分异并存;(3)京津冀城市群综合承灾能力的总体差异呈现上升趋势,北京-河北地区间差异最大,地区间差异是总体差异的主要来源。掌握京津冀城市群综合承灾能力的时空分布变化规律,并制订相应的防灾策略是京津冀城市群有效应对外部冲击以及实现京津冀地区协同与高质量发展国家战略的重要支撑。

多情景下张家口市土地利用变化及碳储量分析

土地利用改变促进生态系统碳储量变化,进而对全球气候产生影响,研究土地利用变化对碳储量的影响,对区域生态系统和实现经济可持续发展具有重要意义。该研究以张家口市为例,基于2000年、2010年和2020年土地利用数据,结合PLUS模型和InVEST模型分析土地利用变化与碳储量的关系并对未来不同情景下的碳储量进行评估。结果表明:(1)张家口市土地利用类型以耕地和草地为主,占该地区总面积约71%。20年间,耕地和草地面积呈下降趋势,林地、建设用地面积呈现增长态势,其主要转换方向为耕地转为建设用地。(2)2030年,自然发展情景下,耕地、林地、水域均有所下降,草地、建设用地和未利用地有所增长;生态保护情景下,林地和草地相较自然发展有所增加,其余地类均有不同程度的减少;耕地保护情景下,耕地面积相较于自然发展情景增加约1.11 km^(2)。(3)过去20年间,该区域碳储量先上升后下降,但总体碳储量依然呈现下降趋势,年均下降0.19×10^(6)t;2030年自然发展情景下,碳储量为766.43×10^(6)t;耕地保护情景下,碳储量为767.28×10^(6)t;生态保护情景下,碳储量为768.5×10^(6)t。耕地保护碳储量介于自然发展和生态保护之间,因此张家口市在未来发展中应实行耕地优先发展前提下采取一定生态保护措施,以减缓碳储量下降速率。

数字技术赋能京津冀产业结构升级的效应研究

数字技术的应用与发展,是现阶段中国经济高质量发展的需要,是产业结构升级的重要技术支撑。以京津冀地区13市2011—2021年面板数据为基础,运用双固定效应模型、中介效应模型、门槛效应模型等多种计量方法对数字技术对产业结构升级的影响进行实证分析。研究结果表明,数字技术对产业结构升级具有促进效应;在地区异质性分析中发现数字技术与产业结构升级的关系在资源型与非资源型城市间尚未产生显著性差异。进一步分维度来看,数字技术对产业结构升级的促进作用主要源于数字技术应用;随着产业结构升级分位点位置的上升,数字技术对产业结构升级的促进效应呈现逐渐增强的特征,使京津冀地区存在数字鸿沟的风险。此外,数字技术对产业结构升级的影响具有经济发展水平的门槛特征,当经济发展水平不断跨过门槛值时,数字技术对产业结构升级的促进作用会增强;数字技术可以通过投资拉动和金融发展效率促进产业结构升级,而市场消费需求和人力资本结构高级化则在其影响中起到遮掩效应。

双碳目标下河北省新型智慧城市建设研究

面对当今碳达峰与碳中和“双碳”工作新要求,作为京津冀生态协同圈的腹地,河北省尤为注重新型智慧城市建设。鉴于此,文章分析了在双碳目标下河北省新型智慧城市建设在城市治理、城市化过程和信息科技发展的条件下,向新型智慧城市过渡的必要性,并对智慧城市建设的政策体系、技术成果和应用领域的发展现状进行了分析研究。

张家口市口蘑产业发展浅析

详细分析张家口市口蘑产业发展历史,阐明其产业发展优势有自然条件优越、具备相对的知名度和宣传基础、栽培原料丰富、栽培设施多样、符合政策支撑导向和就业人员充足且类型多样。指出产业发展存在如下问题:口蘑经营主体的组织化程度低,缺乏大规模或龙头口蘑种植企业、品牌效应差,口蘑产品流通能力低、农业产业链有待拓展,口蘑生产技术落后,产学研融合程度有待进一步提升。提出针对性发展对策与建议,包括:优化口蘑经营主体产业组织模式,培育口蘑龙头企业,延伸口蘑产业化链条,推进区域口蘑公共品牌建设,推进口蘑轻简化、标准化栽培,构建现代口蘑产品流通体系,强化科研技术支撑作用,强化政府职能部门作用,加大产业政策和资金的支持力度。

京津冀城市群城市韧性的组态效应研究——基于NCA与fsQCA方法的结合

建设韧性城市、提升城市韧性是世界各国发展中关注的重点和焦点。文章基于京津冀城市群14座城市的统计数据,通过文献计量法和熵权-TOPSIS方法构建评价指标体系并进行综合评价,运用NCA与fs QCA结合的方法,探索京津冀城市群城市韧性建设的组态路径。研究发现,城市经济韧性是建设高水平韧性城市的必要条件;城市经济韧性和城市社会韧性是制约高水平韧性城市建设的主要瓶颈;实现京津冀城市群城市韧性建设存在两条路径,分别对应生态型韧性城市和工程型韧性城市。

北京高质量发展与城市综合承载力耦合协同研究

为探究北京高质量发展与城市综合承载力的协同关系问题,本文结合北京高质量发展和城市综合承载力构建了复合评价指标体系,并运用耦合协调度模型定量测度2005—2020年两个系统综合水平以及耦合协调关系。研究表明:北京高质量发展指数和城市综合承载力指数总体呈现增长态势,但目前还处于中低水平;北京高质量发展系统和城市综合承载力系统的耦合协调度从中度失调耦合升级为初级协调耦合,呈现稳定上升态势,但距离优质协调耦合还有一定的提升空间。因此,北京要科学配置资源要素,不断提高城市综合承载力,深入推进京津冀区域协同发展,实现北京经济社会高质量发展。

物流业与金融业协同集聚对城市群经济高质量发展的影响——基于京津冀城市群的实证分析

利用2010-2019年京津冀城市群的面板数据,构建柯布-道格拉斯生产函数模型分析物流业与金融业协同集聚对经济高质量发展的影响,并通过面板门槛模型进一步探析京津冀物流业与金融业协同集聚与经济高质量发展之间的非线性影响。结果表明:京津物流业与金融业协同集聚和经济高质量增长之间呈现出倒“U”型的非线性关系。京津冀城市群中,北京市、天津市、石家庄市、唐山市、沧州市和秦皇岛市物流业与金融业协同集聚的拥挤效应正在抑制这些城市的经济高质量发展;其他城市物流业与金融业协同集聚的规模效应会进一步促进这些城市的经济高质量发展。因此,京津冀城市群的政府和行业需要共同发力,充分发挥京津冀物流业与金融业协同集聚的规模效应,并缓解京津冀物流业与金融业协同集聚的拥挤效应。