Research on Types of Regional Eco-protection Space and Its Protection Countermeasures——A Case Study of Chongzuo City of Guangxi Province in China

Reasonable division of eco-protection space is a vital measure to coordinate the relationship between regional economic development and ecological protection,and to realize regional sustainable development.The paper has concluded the concept of regional eco-protection space which has been divided into ecological space of forbidding development and restricted development.It has discussed methods to divide regional eco-protection space and proposed protection countermeasures for regional eco-protection space.GIS has been adopted to divide eco-protection space of Chongzuo City.The eco-protection space of Chongzuo City covers an overall area of 5,833.94 km2,taking up 34.04% of the total area of Chongzuo City;ecological space of forbidding development covers an area of 1,555.35 km2,taking up 8.97%;the ecological space of restricted development covers an area of 4,344.59 km2,taking up 25.07%.Finally,the protection countermeasures for regional eco-protection space have been proposed.

Artistic Space Design of Subway Station Based on Regional Characteristics

On the basis of existing problems in the spatial design of subway station, this paper explored the principles that regional culture involves in the artistic space design of subway station; based on the analysis of three main design sections and site cases-spatial interface, public art and color, the paper also discussed the artistic application and design embodiment of regional culture characteristics reflected in every element of subway station space design, so as to provide a consolidated design example for subway station space design featuring regional characteristics in the future.

Actively Promoting Regional Space Cooperation——Vice Administrator, Loan Enjie headed a delegation to attend the Second Asia-Pacific Conference on Multilateral Cooperation in Space Technology and Applications

A Chinese delegation of 24 persons headed by Mr. Luan Enjie, Vice Administrator of China National Space Administration (CNSA) attended the Second Asia-Pacific Conference on Multilateral Cooperation in Space Technology and Applications held at Islamabad, the Capital of Pakistan from April 22 to 26, 1995. Following the First AsiaPacific Workshop held in Beijing in December, 1992, and the First Asia-Pacific Conference on Multilateral Cooperation in

Regional carrying capacity: case studies of Bohai Rim area

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.

The Solar Upper Transition Region Imager(SUTRI)Onboard the SATech-01 Satellite

The Solar Upper Transition Region Imager(SUTRI)onboard the Space Advanced Technology demonstration satellite(SATech-01),which was launched to a Sun-synchronous orbit at a height of~500 km in 2022 July,aims to test the on-orbit performance of our newly developed Sc/Si multi-layer reflecting mirror and the 2k×2k EUV CMOS imaging camera and to take full-disk solar images at the Ne VII 46.5 nm spectral line with a filter width of~3 nm.SUTRI employs a Ritchey-Chrétien optical system with an aperture of 18 cm.The on-orbit observations show that SUTRI images have a field of view of~416×416 and a moderate spatial resolution of~8″without an image stabilization system.The normal cadence of SUTRI images is 30 s and the solar observation time is about16 hr each day because the earth eclipse time accounts for about 1/3 of SATech-01's orbit period.Approximately15 GB data is acquired each day and made available online after processing.SUTRI images are valuable as the Ne VII 46.5 nm line is formed at a temperature regime of~0.5 MK in the solar atmosphere,which has rarely been sampled by existing solar imagers.SUTRI observations will establish connections between structures in the lower solar atmosphere and corona,and advance our understanding of various types of solar activity such as flares,filament eruptions,coronal jets and coronal mass ejections.

Silicon Solar Cell Space Charge Region and Capacitance Behavior under Electric Field

This paper investigates theoretically the behavior of the space charge region of a silicon solar cell and its associated capacitance under the effect of an external electric field. The purpose of this work is to show that under illumination the solar cell’s space charge region width varies with both operating point and the external induced electric field and how the solar cell capacitance varies with the space charge region width. Based on a 1D modelling of the quasi-neutral p-base, the space charge region width is determined and the associated capacitance is calculated taking into account the external electric field and the junction dynamic velocity. Based on the above calculations and simulations conducted with Mathcad, we confirmed the linear dependence of the inverse capacitance with space charge region width for thin space charge region and we exhibit an exponential dependence for large space charge region.

Comparative Analysis of the Evolution of Community Space in Chengdu-Chongqing Region: A Case Study of Main Urban Areas in Chengdu and Chongqing

Due to the integrated development between Chengdu and Chongqing,there are a large number of residents flowing into the two cities from their surrounding areas,so community renewal is imminent.Because of the similarity in the historical and cultural background of the two places,a comparative analysis of the evolution of community space in Chengdu-Chongqing Region enables Chengdu and Chongqing learn from each other and speed up the pace of renewal.This paper analyzed the evolution of community space in main urban areas of Chengdu and Chongqing.Specifically,the evolution of community space in Chengdu and Chongqing went through three stages.The starting time of community renewal in the two places was very close,but the duration of each stage varied.The second stage of Chengdu continued for a longer time,so its renovation and renewal of the community space was more detailed and thorough,and the emphasis and extension direction of the evolution of the community space were different.The evolution of community space in both Chengdu and Chongqing went through"mechanical renewal of demolition and construction—small-scale gradual renewal",but the path of renewal and development of the community space in Chengdu was faster.This paper,from the perspective of the evolution of community space,put forward the framework and content of community renewal in Chengdu and Chongqing based on community development and elaborated the community research content based on community development.

Wind and Snow Impacts on Urban Space Planning:A Multiphase Numerical Simulation

The wind and snow environment outside the planned space plays a key role in the comfort and safety of the human habitat in severe cold regions. Traditional studies of the external environment of human settlements, however, frequently overlook the combined impacts of wind and snow environments. Furthermore, in urban meteorological studies, it is impossible to accurately assess the wind and snow environment in specific areas or locations. In this study, a refined Computational Fluid Dynamics(CFD) multiphase flow numerical method was used to simulate a planning space's wind and snow environment. The study classified the Snowstorm Weather Grade(SWG) by incorporating the Snowstorm Weather Index(SWI) to generate calculation results of the wind environment and snow environment. In particular, 150 measurement points in the planning space were chosen for analysis and evaluation of their wind and snow environments. The results demonstrated that the SWI index can effectively correlate to the wind and snow environment calculation results. In addition, the graph of SWI showed that 55% of the measurement points had a moderate wind and snow grade SWI, which exceeds the average grade for the entire region. The practical application shows that the wind and snow environment assessment indexes and technical methods developed in this paper can be successfully applied to wind and snow environment studies in other cold cities.

从空间规划体系到国土空间体系——兼析国土空间体系构建下的国土空间治理趋向

研究目的:分析国家治理体系和治理能力现代化背景下,国土空间体系表述的形成脉络及内在逻辑,并从国土空间体系构建视角探讨国土空间治理的未来趋向。研究方法:综合分析法与对比分析法。研究结果:国土空间具有“区域”和“要素”双重特性,建立空间规划体系旨在解决传统国土空间治理的“区域”“要素”缺乏统筹问题。从空间规划体系、国土空间规划体系到国土空间体系的演变,实质上是不断推进迈向高质量发展、强化“区域—要素”统筹的国土空间治理。在构建国土空间体系的指引下,国土空间治理既要聚焦国土空间的高质量发展,绘就国土空间协调发展蓝图,又要完善主体功能区战略和制度,做好国土空间治理的“区域—要素”统筹。研究结论:面向国土空间体系构建,国土空间治理未来应做好国土空间高质量发展导向下的“区域—要素”统筹治理。

新质生产力:指标构建与时空演进

新质生产力作为一个全新的概念,为中国的经济和社会发展指明了新的方向,对其内涵与意义的深度发掘至关重要。文章基于生产力的三大构成要件,在挖掘新质生产力长远要求原则下构建其综合评价指标体系,并运用熵值法对中国省域新质生产力发展水平进行测度。研究发现:(1)新质生产力从总体上呈增长趋势,但在南北、四大区域和五大经济带存在显著时空差异;(2)新质生产力在省域之间呈现梯度提升和发展不均衡特点;(3)分维度发现,生产资料对新质生产力提升的贡献度最高,劳动者维度的贡献最低且存在空间极化现象;(4)新质生产力具有显著的集聚效应,主要表现为低-低集聚和高-高集聚,并具有时空收敛性特征。进而提出优化人力资本结构、发挥新质生产力集聚效应和健全区域协调发展机制等政策建议。本文或可加深对中国新质生产力的时空发展格局的认知,为新质生产力培育进而促进经济高质量发展提供新思路。

区域设计视角的省域魅力国土空间体系研究--以广东省为例

构建省级魅力空间体系是对人文和自然遗产资源进行统筹保护、展示和创造性利用的有效途径,也是促进区域“对流”、提升国土空间均衡发展水平的重要手段。文章立足广东省国土空间规划的编制实践,尝试采用区域设计的理念探索构建省域魅力空间体系的技术方法。研究重点探讨了区域设计的既有理论基础和省域层面区域设计的目标导向,认为省域尺度需要关注的核心空间要素包括空间基底、网络结构、重要节点等层面。基于上述理论认识,对广东省案例进行解析,以期能拓展省级国土空间规划中魅力空间体系构建的思路,支撑国土空间高质量发展。

基于改进Faster RCNN的微操作空间目标检测算法

将Faster RCNN引入微操作系统的目标检测之中。针对微操作空间下待检测目标存在尺度变化和在显微镜放大倍数较小时,待检测目标尺度过小、特征不明显的问题,提出了一种基于改进Faster RCNN的微操作空间目标检测算法。使用在图像分类任务中性能优越的深度残差网络提取图像的特征。引入递归特征金字塔网络,对特征进行融合。改进区域建议网络的采样策略,对损失函数进行优化。实验结果表明:这种改进的Faster RCNN算法能有效解决由于目标尺度变化和目标尺度过小带来的问题。相比通用的目标检测算法,该算法的准确度更高,速度更快,具有实际应用价值。

自然生态空间用途管制制度的再造分析

在推进国家治理体系和治理能力现代化的进程中,我国现行的土地用途管制制度、自然资源用途管制制度出现“制度失灵”,无法适应当前建立覆盖“全域、全要素”国土空间用途管制制度的要求。自然生态空间用途管制制度在地类划分、分区、区域准入及实施保障方面,存在亟须解决的问题。自然生态空间用途管制制度构建的基本路径是,首先厘清其与土地用途管制制度的适应性,然后从界定自然资源可管制的空间范围、选择多功能管制、改革建设用地指标制度等方面实现其制度再造。自然生态空间用途管制制度的构建,有利于贯彻落实生态文明建设新理念,同时也是形成国土空间治理合力的重要制度保障。

吴文化元素在苏州地铁公共空间中的表达与应用

[目的]以城市地域文化传承为背景,探讨吴文化元素在苏州地铁公共空间中的融合与运用,总结吴文化元素在地铁公共空间的应用价值及策略。[方法]由吴文化兼收并蓄、崇文重教、柔中蓄劲、人巧天工等内涵出发,从典型性提炼、抽象化法则、文化符号重构三方面提出了吴文化元素的提取方法;利用案例分析法从设计说明、材料工艺、工艺施工及技术要求层面对苏州地铁出入口、站内公共艺术、车厢厢体吴文化元素的运用展开分析,详细介绍了吴文化建筑元素、园林元素、文化性格、餐饮文化、宗教信仰、语言文化、戏曲文化等方面对构建独特苏州地铁文化景观的具体做法。[结果及结论]通过吴文化元素提取的法则,建立吴文化符号设计系统、赋予吴文化符号功能及文化语义、运用现代设计手段实现传统文化在地铁公共空间转译传达,对传承城市文脉、塑造新时代城市精神,提升城市文化软实力具有推动意义。

运动公平视角下寒地城市绿地格局特征及优化研究--以哈尔滨为例

快速城镇化背景下慢性疾病频发,绿地作为公众运动健身重要场所在提高公共健康水平方面发挥着重要意义。寒地冬季漫长,严寒气候极大程度限制了居民的户外运动,特别是工业属性较强的老城区,绿地格局先天劣势,加剧了运动不公平现象。基于运动公平视角,构建寒地城市绿地格局供需指标体系,评估绿地耦合协调发展水平;并利用基尼系数与人均绿地面积区位熵探寻季节分异下的绿地格局公平性。结果表明:(1)寒地城市绿地运动供需空间严重失衡,绿地格局耦合协调度较差,运动公平性差距悬殊,总体呈现西北好,东南差的分异特征;(2)西北部为原发展核心,绿地等基础设施建设完备;随着城市扩张,东南部成为新发展核心,但依旧以工业为导向,绿地建设不足,导致绿地分布极端,空间分异明显;(3)季节分异对运动公平产生不同结果,严寒气候增加了绿地可达的阻力,不平等性随着气温的下降而增加;由于缺少公共绿地,东南部在冬季面临更加严重的不公平现象。基于对关键指标的优化测算,优化更新寒地城市绿地格局,为落地环境干预健康的“健康中国”国家战略提供理论与实践参考。

高等教育区域化:多重空间的生产与互构

基于空间生产理论,高等教育区域化是“地理-社会-文化”多重空间的生产与互构过程。我国高等教育区域化通过国家在区域层面选择高等教育集聚区,重塑高等教育空间形态,实现地理空间的生产;以系列制度性安排引导高等教育主体的行为方式以及高等教育要素的流动,规范高等教育空间秩序,拓宽社会空间的生产;在精神和实践双重维度塑造高等教育空间共识,促进文化空间的生产。当前,我国高等教育区域化正处于从以传统规模集聚为主的地理空间生产向以知识创新为主的多维空间有机联动转型的关键期。我们要构建高等教育空间网络,促进“地理-社会-文化”多重空间的有机融合;创新高等教育空间制度,根据不同空间属性采取不同的治理策略;培育高等教育空间意识,创生符合空间基础的区域化发展模式。

“流空间-场所空间”视角下长征国家文化公园区域文化景观体系构建

【目的】构建区域文化景观体系,并探讨旅游流空间与场所空间的相互作用关系,以指导长征国家文化公园区域主题展示区的空间组织模式优化。【方法】通过“流空间-场所空间”视角,提出区域文化景观体系的空间结构要素,并运用社会网络分析识别区域旅游流网络结构特征。【结果】旅游流空间为场所空间提供感知需求,而场所空间为旅游流提供行为目标,这种相互作用关系体现了区域文化景观体系的空间结构的功能与价值两大特征;可通过“流—网—链—域—场—点”6个空间结构要素构建区域文化景观体系,并应用“斑块—廊道—节点”模式划定区域主题展示区;长征国家文化公园延安段可划分出6个主题展示区,其中甘泉县包含1个重点展示园、1条集中展示带和2个特色展示点。【结论】在“流空间-场所空间”视角下,区域文化景观体系构建要进一步挖掘区域性特征,而区域主题展示区的空间组织模式应综合考虑供需两侧的现实需求。这些发现为区域文化景观空间功能的研究提供了理论视角与体系结构,可对长征国家文化公园的具体建设提供直接支持。

京津冀区域国土空间生态修复关键区域识别研究

为构建京津冀生态安全格局,该文首先确定生态源地的选取,利用生态源地构建生态源点,之后通过MCR模型构建生态阻力面,利用ArcGIS中成本距离与成本路径的分析,以MCR最小累计阻力值为基础实现对生态廊道的提取,并识别出京津冀地区高生境质量的空间结构要素,在此基础上提出生态修复建议,以期促进研究区生态保护工程的科学、高效实施和整体生态环境质量提升,为研究区生态保护修复工程的科学高效实施提供借鉴和参考。

水生态系统韧性视角下热带雨林地区的蓝绿空间评价——以五指山市南圣河为例

热带雨林地区因特殊的气候特点及空间特征,河流蓝绿空间面临的雨洪压力与人类社会活动压力较大,其韧性建设对于整个生境具有关键性影响。国内外研究聚焦于韧性承洪实践与韧性评估量化,鲜有基于不同生态压力冲击对河流蓝绿空间开展多维韧性评价。文章以南圣河为对象,基于雨洪等自然灾害的脉冲式压力与人类社会对生态系统施加的慢性压力两类情境,构建水生态系统的“压力-脉冲-韧性”模型,通过“构建理论模型―叠合双维承压评价―解析吻合/冲突点―探析韧性策略”的逻辑方法实现特定地域蓝绿空间的评价与优化。研究发现:1)生态系统服务价值越高,调节功能越高,蓝绿空间韧性越强。2)突发性脉冲方面,在极端日降雨量增加情景下,河流水系的缓冲半径与水源类型密切相关,水库受到水安全威胁的风险大于河流,地表的径流曲线数值(简称CN)一般与历史经验相关。3)慢发性压力方面,韧性压力与城市人口密切相关,人口越密集,韧性压力越大;且不同季候的游憩密度与丰枯期存在分异,丰水期雨洪威胁大,游憩密度低,枯水期雨洪威胁小,游憩密度高。

晋东南高都镇村庙对乡村聚落的整合作用

城镇化进程中,乡村聚落人居空间环境与社会环境发展失衡,乡村聚落正面临“失活消亡”的问题。对此,以晋城市高都镇村庙建筑为研究对象,探究村庙建筑与乡村聚落商业空间的关系,得出村庙建筑对传统乡村聚落的地域空间和商业空间两方面存在物质性和精神性的双重整合作用;村庙建筑等公共空间既是乡村聚落人居空间环境的物质核心,也是乡土社会商业行为的物质载体。