Spatial Distribution of Soil Salinization Based on GIS in Tianjin Binhai New Area

The distribution of soil salinization was investigated based on GIS and field sampling in Tianjin Binhai New Area. The results showed that the average soil total salt content was 0.818%, with an average pH of 8.43, and the average CI and Na＋ contents were 0.27% and 0.22%, respectively. Presenting zonal distribution feature, the soil total salt content increased gradually from west to east of Binhai New Area. Statistics on the distribution areas of different salinization degrees showed that the area of non-salinzed soils only accounted for 3.18% of the total area; with an area of 107.43 km2, mild saline soil accounted for 6.34% of the total area; the area of moderate saline soil was 173.51 km2, accounting for 10.24%; and the area of sal- inzed soils was 217.36 km2, accounting for 12.82% of the total soil area. The area of saline soils （total salt content 〉0.6%） was 1 142.8 km2, accounting 67.42% of the total land area in Binhai New Area. And the areas for the soils with total salt content of 0.6%-1.0%, 1.0%-1.5%, 〉1.5% were respectively 388.47, 411.82, 342.51 km2, accounting for 22.92%, 24.3%, 20.21% of the total area.

Analysis on the land use and cover change in Tianjin Binhai New Area based on the remote sensing

This paper carries out quantitative analysis on the land use/cover （LU/C） change of 13anjin Binhai New Area in recent 10 years through using land use transition matrix from the three-stage LU/C classification maps of 2000, 2005 and 2010 drafted by means of the National Land Classification System of China based on Landsat TM satellite remote sensing image and the Tianjin Binhai New Area 1：50 000 relief maps. On this basis, the impact of such driving factors as the economy and population on LU/C is further analyzed. The results show that the area of the building land in Binhai New Area has increased significantly over the ten years, and the greenland, wetland, and shoals of high ecological value have been dramatically transformed into the building land and unused land for the development and construction, and the change is more significant in the later five years.

System Development for Storm Surge Hazard Assessment Based on WebG IS for Tianjin Binhai New Area

It is imperative to develop a risk assessment system for quickly predicting storm surge disaster due to the vulnerability of Tianjin Binhai New Area. The flood routing model with user-defined breaches was firstly estab- lished based on the seed spread algorithm in order to achieve a rapid forecasting of storm surge flood information. Furthermore, fuzzy mathematics was utilized to identify the storm disaster grade, and the hazard mapping was con- ducted to visually obtain the hazard spatial and temporal distribution. Finally, the flood routing visuaUzation method was proposed based on numerical simulation of storm surge to achieve the reappearance scene of dynamic evolution process. The developed system can play a vital role in the management and decision-making of sea dyke mitigation engineering in Tianjin Binhai New Area.

Path Choice on Rural Industrial Upgrading in the Process of Rural-urban Integration in Binhai New Area

With methods of reference research and field research, the current situations of rural industrialization in the process of rural-urban integration in Binhai new area are analyzed and some problems in the process of integration in the new area are pointed out, such as difficulties in breaking dual economic structure in urban and rural areas, imbalanced economic development in the area and inadequate development of the third industry. And relevant countermeasures are proposed: optimizing agriculture industrial structure and promoting agricultural industrialization to form urban agricultural model of Binhai new area focusing on facility agriculture, park agriculture and high-end agriculture and to realize the intensive growth of agriculture; rationally distributing rural industrial structure to form regional leading industry and playing the guiding role of industry to achieve industrial adjustment improvement; quickening the construction of the third industry centering on service to form the service system of modern countryside and the leading role of modern service industry so as to achieve rapid development of the third industry.

Quantitative Evaluation on Urban Ecosystem Carrying Capacity in Tianjin Binhai New Area

Based on the concept of ecosystem carrying capacity,the indicator system of quantitative assessment was set up,which consisted of support indicator system and pressure indicator system.And the factor analysis method was used to screen the indicator system.Different from the traditional indicator weight determination based on the absolute values of the coefficients of regression equation,the squares of factor loadings in the rotated component matrix were attempted to determine the weights of 40 assessment indicators.The result shows that ecological support system and pressure system in Binhai New Area are relatively balanced among six years,and the developing level of urban ecosystem is basically healthy on the whole.However,due to continuously increasing pressure of the resources consumption caused by the rapid growth of the second industry,which is the Leading Industry of Binhai New Area,the ecosystem carrying capacity reached the minimum in 2005.

Preliminary Analysis of Sea Use Planning Strategies in Coastal Cities:A Case Study of Binhai New Area in Tianjin City

Through investigating current sea use in coastal cities of China,and exploring foreign and domestic researches on sea use,this paper took Binhai New Area of Tianjin City for example to analyze major problems of its sea use in ecological security,planar form,land use layout,specialized planning,management and regulatory mechanism,then proposed strategies from 4 perspectives,namely ecological conservation and restoration,optimization of planning planar form,optimization of planning land use layout,and planning management,in order to provide references and instructions for the sea use planning of Chinese coastal cities.

On financing restriction and improvement countermeasure in Tianjin Binhai New Area

Ever since involvement of the Binhai New Area into the national development strategy, carrying out highly effective financing promptly will play the pivotal role to implement its economic development strategy smoothly. In this paper, based on nature of regional financing, the descriptive analysis for the financing condition of the Binhai New Area is carried on. And also based on financing restraint theory and the neoclassic investment model, a real diagnosis analysis for the financing constraint condition of the Binhai New Area is studied. Finally, the existed questions in it are pointed out, and propose the correlative improvement countermeasure is put forward.

Study on the Functional Zoning Modes of Urban Wetland Parks

Functional zoning is a critical phase in the planning of parks.Through summarizing and analyzing the functional zoning modes of different urban park types in China,as well as comparing to the functional zoning modes of nature reserves,famous scenic areas and overseas national parks,the functional zoning modes of urban wetland parks in China were elaborated in this study,the assumption of further sectorization were put forward,and theoretical supports were sought for more scientific and operable functional zoning of urban wetland parks.

基于时序InSAR技术的滨海新区地面沉降监测

针对传统地面沉降测量方法在大范围测区内费时长、时效性差等缺点,本文利用2017—2021年覆盖天津市滨海新区Sentinel-1A影像数据,采用永久散射体合成孔径雷达干涉测量(PS-InSAR)和短基线集合成孔径雷达干涉测量(SBAS-InSAR)技术获取地面沉降数据,通过地表形变信息的时空分析确定各类因素对地面沉降的影响并交叉验证结果的可靠性。分析结果表明,天津市滨海新区的地面沉降受到降水、第四系地层厚度、地下水等因素影响。其中,天津市滨海新区在2017—2021年存在地面沉降现象,最大沉降速率为-130 mm/a,最大抬升速率为40 mm/a,最大累计沉降量为-411 mm。重点沉降区域主要分布在东北部的杨家泊镇与寨上街道交界地区以及西南部的中塘镇和北大港水库附近。

Characterization of polycyclic aromatic hydrocarbons in PM2.s and PMlo in Tanggu District, Tianjin Binhai New Area, China

Particulate matter （PMlo and PM2.5） concentrations were monitored during the November 2008 by using the filter samples collected day and night from three sites in Tanggu District at Tianjin Binhai New Area, China. The mean concentrations of PM2.5 and PMlo rank in the order of urban （150 ug/m3 for PM2.5 and 197 ug/m3 for PM10） 〉 industrial （32 ug/m3 for PM2.5 and 170 ug/m3 for PM10） 〉 suburb area （27 ug/m3 for PM2.5 and 59 ug/m3 for PM10）. Sixteen polycyclic aromatic hydrocarbons （PAHs） were analyzed in PMlo and PM2.5 samples. Concentrations of total PAHs in PM2.5 and PMlo are in the range of 8.47- 113.94ng/m3 with average of 62.88ng/m3 and 21.07- 118.23 ng/m3 with average of 73.42 ng/m3, respectively. The light ring PAils （2-4 rings） are dominant in both PM2.5 and PMlo during sampling time compares with the heavy ring （5-6 rings） PAHs. The relationship of PAHs and PM2.5 （r = 0.689, p 〈 0.05） is stronger than PAHs and PMlo （r = 0.570, p 〈 0.05）, illustrating PAHs tend to adsorb in PM2.5. In addition, principal component analysis was applied to find the source of PAHs. Three principal factors representing three types of PAHs sources in Tanggu District are extracted, which were coke production, pyrogenic sources and vehicular source.

基于Sentinel-1数据的天津滨海新区地面沉降监测

Sentinel-1的渐进扫描采集模式可以实现大面积覆盖,且因其12d的重访周期,非常适用于地面沉降监测工作。基于2015年5月至2016年6月的25景Sentinel-1TOPS合成孔径雷达图像,采用小基线集InSAR技术研究天津市滨海新区的广域地表沉降特征,并结合城市规划对地面沉降原因进行分析。监测成果表明:2015-2016年,由于大量渔业养殖、软土沉积等原因,地表沉降严重区主要分布在沿海区域。

天津滨海地热田北部深部地热资源赋存规律

【研究目的】天津地热资源丰富,目前已开发的深部地热资源大部分位于“隆中凸”构造区域,而位于“坳中凸”构造区域的地热资源勘查和研究程度基本尚属空白,揭示其深部地热赋存规律可为滨海新区及京津冀地区寻找深部地热资源及勘探与开发提供重要参考。【研究方法】本文以黄骅坳陷宁河凸起中的桥沽地区为研究区,以近期新发现的资源禀赋最好的蓟县系雾迷山组热储层为研究对象,通过分析区域地质资料、大地电磁测深(MT)、钻孔测温和物探测井等资料,系统总结了研究区地质构造、地温场和深部地热资源赋存特征。【研究结果】雾迷山组储层的热储温度高(90~120℃),出水量大于100 m^(3)/h,埋藏相对较浅(2200~2800 m)。区内地质构造条件复杂,断裂构造发育,汉沽断裂为研究区重要的导热、导水通道;地温场呈现“两高夹一低”展布特征与两处背斜构造空间位置相对应;热源以壳源热为主、幔源热次之,大气降水为主要热水来源,热传输机制以热传导型为主。【结论】综合研究区深部地热赋存规律,建立了深部地热资源概念模型,明确了“坳中凸”深部地热找矿新思路。

尺度重构视角下经济技术开发区向综合功能新区转型的空间应对——以烟台黄渤海新区为例

鼓励和促进经济技术开发区向综合功能新区转型发展,是经开区空间生产转型的内在需求,也是响应国家对经开区发展定位的重要举措。本文基于尺度重构理论视角,以烟台黄渤海新区为例,总结分析经开区向综合功能新区尺度重构的基本逻辑。研究认为,经开区向综合功能新区转型发展的过程,是一次“尺度上移”的过程,通过赋予更高层级的管理权限,重构区域生产关系、社会关系以及治理关系,形成产业协作有序的功能板块、更高标准的产城格局以及更加扁平化的治理结构。研究发现,烟台黄渤海新区在建设过程中,面临多空间主体及多政策制度并存的治理难题,其空间呈松散发展状态,以及低水平的产城融合特征。据此,文章提出整合港产功能板块、调整产城关系以及实施渐进性治理机制的治理策略,推动新区高质量发展,打造带动区域经济高质量发展的重要增长极。

发展新质生产力推进成渝地区双城经济圈国家战略腹地建设

2023年12月,中央经济工作会议提出“优化重大生产力布局,加强国家战略腹地建设”的重大策略。党中央高度重视西部地区发展,2024年4月习近平总书记考察重庆时强调“建设成渝地区双城经济圈是党中央作出的重大战略决策”。2024年的《政府工作报告》再次强调加强国家战略腹地建设的重要性。顾名思义,战略腹地是相较于沿海(沿边)地区而言的。因此,中西部地区必将是国家战略腹地建设的重点区域。成渝地区双城经济圈位于长江上游,与东部沿海地区有数千公里的距离,在国家西部大开发战略推动下,双城经济圈社会经济和科技发展水平不断追赶沿海三大经济增长极。该地区人口众多、土地辽阔、自然资源丰富、经济规模较大、科技力量雄厚、战略地位特殊,是打造新时代国家战略腹地的理想核心承载地区之一。本文首先梳理21世纪以来成渝地区双城经济圈在经济增长、人口集聚、科技创新、产业发展、市场培育、对外开放等方面所取得的显著成就,在此基础上分析该地区培育新质生产力、提高发展质量的机遇和挑战,最后提出新时代成渝地区双城经济圈建设国家战略腹地核心承载区的政策建议。

新一代载人飞船卫生区功能性空间优化设计研究

目的开展中国新一代载人飞船卫生区的空间优化研究,探索功能性空间优化设计方法,提高载人飞船空间利用效率,同时提升航天员的舒适性体验。方法以中国空间站卫生区的功能和结构为依据,探讨中国新一代载人飞船卫生区功能组件的构成;依据航天员在微重力状态下使用卫生区的动作与姿态,建立卫生区空间布置的初步概念;根据卫生区的舱壁布局、微重力下航天员视野区域及最佳操作空间分析,开展相关功能组件建模,基于卫生区的人机交互节点,利用JACK软件进行仿真分析与评估,结合评估结果改进设计方案,并通过追踪航天员活动轨迹产生的包络体完成卫生区的空间优化。结论通过对比中国新一代载人飞船卫生区优化前后设计方案的舒适性、可操作性和空间尺寸,验证了功能性空间优化设计方法的有效性和可靠性,为载人航天器舒适性与集成化设计提供了参考。

天津市滨海新区白水头堤段海堤堤型比选设计

天津市滨海新区位于渤海湾西岸,海岸线北起津冀交界涧河口,南至沧浪渠入海口。由于沿海区域地势平坦,历史上曾多次受到风暴潮侵袭,造成不同程度经济损失。现状海堤防潮设计标准为20~50 a一遇潮位组合7级风,经过多年运行大多数堤段发生不同程度沉降,不满足原防潮设计标准,距规划防潮标准100~200 a一遇潮位组合50~100 a风浪差距较大,海堤提标建设工作亟待开展。主要阐述滨海新区白水头堤段不同型式的海堤在工程中的比选及设计应用。

我国本土气温指数期货产品的研发设计——源于京津冀“首都经济圈”核心功能区的气温数据

我国幅员辽阔,对天气变化非常敏感,迫切需要对天气风险进行有效管理,以消除或减少天气风险对各行业的不利影响。从产品研发设计视角出发,以京津冀“首都经济圈”核心功能区为例,参考国外成熟产品,对我国本土气温指数期货产品进行合约设计和模拟定价,根据行业需求阐述产品的应用价值,提出产品在天气风险管理中的显著作用。研究贡献有,搭建起我国本土气温指数期货产品的研发体系;基于国外成熟市场规则构建出符合我国国情的气温指数期货产品标准化合约框架;运用ARMA模型构建出精确度高的气温预测模型;采用蒙特卡罗模拟法制定出气温指数期货两款产品价格;明确产品的应用推广需求和风险管理作用。

南京河西鱼嘴核心区城市设计中的一体化形态建构与管控

在新城核心区设计中,如何基于自然与人工资源特征进行形态整合往往是实现集约化开发的重要抓手。而在实施管控的过程中,通常会经历专题论证、实践反馈和动态调整的过程。以南京河西鱼嘴核心区为例,回顾其规划历程,总结其在滨江城市环境形态建构与管控中的关键策略,为当代中国高密度核心区的城市建筑一体化开发提供参考。

雄安新区基岩热储钻探施工技术探讨

针对雄安新区基岩热储钻探中风化壳钻进、地层大量漏失封堵及基岩取心的钻探工程难点,通过对所处牛驼镇地热田、容城地热田和高阳地热田地热地质状况、岩性特点的分析,提出了基岩热储地热钻探有效解决方案,包括采用小径探孔施工工法、采用封隔器有效完成水泥浆堵漏、借鉴金刚石满眼取心钻具技术等。

功能性训练在武术兵道(短兵)中的应用研究

功能性训练现已被广泛应用于击剑、篮球、足球等运动项目中,且经过实验验证具备有效性和实用性,是近年来备受关注的一种训练方法。到目前为止,对于武术兵道(短兵)训练方法的研究相对有限,而功能性训练对武术兵道(短兵)来说确实是一项新的训练方法,文章运用文献资料法对功能性训练进行研究,为武术兵道(短兵)的实际应用提供有针对性的训练方法,以提升武术兵道(短兵)运动员体能。