The Seasonal Rainfall Forecast in Nanning City in 2019 with the Method of Trend Comparison Ratio (TCR)

In this paper, the monthly rainfall statistical data of Nanning City, Capital of Guangxi Zhuang Autonomous Region, China, from 2006 to 2018, were collected. On the basis of qualitative analysis of the rainfall seasonal changing law, the non-linear seasonal rainfall forecast model on Nanning City with the method of Trend Comparison Ratio (TCR) was established by the statistical analysis software Office Excel 2013. The model was used to predict the rainfall in spring, summer, autumn and winter in Nanning in 2019. The results were: 286.41 mm, 695.79 mm, 292.20 mm and 118.11 mm, respectively. It was also found that the predicted results were consistent with the seasonal distribution characteristics, annual distribution characteristics and the trend of historical rainfall time series fluctuation, through the qualitative analysis of figures. Compared with the actual measured rainfall data of Nanning City in 2019 in the China Statistical Yearbook (2020), the predicted values are basically consistent with the measured values.

Research on Flora in Qingxiu Mountain Scenic Area in Nanning City

Qingxiu Mountain Scenic Area is a famous tourism destination in Nanning City.Based on site survey,identification and data sorting for many years,the features of plant flora in Qingxiu Mountain Scenic Area were analyzed as below:① There are totally 1 431 species of vascular plant species,belonging to 752 genera and 174 families(including varieties,cultivated variations and variants,the same as below),among which there are 48 species of fern,belonging to 36 genera and 21 families,42 species of gymnosperm,belonging to 14 genera and 8 families,1 341 species of angiosperm,belonging to 702 genera and 145 families;② There are diversified species dominated by introduced and cultivated species;③ Relatively simple geographical components,mostly are tropical and subtropical regions;④ Being located in the transitional zone of tropical and subtropical regions with obvious tropical marginality;⑤ Most of the introduced species are rare and endangered ones,rarely are unique or ancient species.

Experience of Sponge City Master Plan: A Case Study of Nanning City

As a new urban development pattern, the construction of sponge cities has been deeply integrated into the new urbanization and water safety strategy. Nanning City, as one of the first batch of experimental sponge cities in China, has undertaken exploration and practice on sponge city planning, construction, and management. The sponge city master plan of Nanning City establishes an urban ecological spatial pattern in order to protect the security of the sponge base. The sponge city construction strategy has also proposed an overall construction strategy of a sponge city in line with urban development features. Through the systematic analysis and planning, a "23+10+202" pattern of sponge city construction has been formed. "23" represents 23 drainage basins, in which major sponge facilities such as storage facilities, waterfront buffer zones, wetland parks, ecological rainwater corridor and sponge parks are allocated. "10" represents 10 sponge functional zones, which provide important reference for the establishment of sponge city construction index system. "202" represents 202 management units, which decomposes the general objective and provides technical support not only for sponge city construction and management, but also for the implementation of general objectives in the regulatory plan as well.

The Development Path of the Construction of Ecological Livable City in Nanning

Congregation of the human activities, changes of the environment and weakening of the ecological capacity, prompts the emergence of new development concept. In order to adapt the development need, Ecological livable cities becoming a new pattern in the 21st century. This article puts forward with the significance of the construction of ecological livable city, analyses the achievement and problem of the construction of ecological livable cities in Nanning, and some methods and countermeasures are also proposed. Obviously, the ecological livable city is regarded as a key and direction for the development of Nanning in the future.

“黑皇”葡萄在广西南宁引种表现及一年两收栽培技术

为解决广西鲜食葡萄栽培品种单一化问题,促进产业结构调整,增加广西葡萄品种种类,引进“黑皇”葡萄进行种植。通过连续2年4个生长周期对其植物学特征进行观察、记录,并研究配套的一年两收栽培技术。结果表明:“黑皇”葡萄在广西南宁地区表现出花芽分化好且整齐,果实着色正常,品质优良,适合在广西南宁避雨栽培条件下进行一年两收栽培。

广西会仙岩溶湿地水体主要离子和溶解无机碳来源及控制因素

【研究目的】为查明会仙岩溶湿地水体主要离子和溶解无机碳(DIC)的来源及控制因素。【研究方法】于会仙岩溶湿地采集地下水和地表水样品,分析了水化学和溶解无机碳同位素(δ^(13)CDIC)参数特征。【研究结果】会仙岩溶湿地大部分的地下水和地表水水化学类型为Ca−HCO_(3)。湿地水体Ca^(2+)、Mg^(2+)与HCO_(3)^(−)主要来源于碳酸盐岩溶蚀;NO_(3)^(−)主要来源为农业化肥和土壤有机氮的硝化;K^(+)、Na^(+)和Cl^(−)主要来源为化肥、粪肥和污水等;SO_(4)^(2−)主要来源为酸雨和硫铁矿的氧化。湿地地下水中DIC主要来源于土壤CO_(2)和碳酸盐岩矿物的溶解,据同位素质量平衡,计算结果显示约46%来自于土壤CO_(2),约54%来源于矿物本身的贡献。会仙岩溶湿地不完全是CO_(2)参与下碳酸盐岩风化的结果,含硫矿物、酸雨和人类活动来源的H_(2)SO_(4)作为侵蚀介质也参与碳酸盐岩的风化,此外,农业输入还原态氮肥的硝化作用不容忽视。湿地地表水中DIC主要来源于地下水,湿地地表水中δ^(13)CDIC值受水生植物的光合作用和CO_(2)脱气的影响,组成较地下水相对富集偏正。【结论】水化学和δ^(13)CDIC可以帮助理解岩溶湿地的风化和生物地球化学过程,同时还应结合湿地水文地质和人为活动等条件才能提供更准确的信息。

湖北荆州张大冢战国楚墓出土青铜器的成分与金相研究

利用X射线荧光光谱仪(XRF)、金相显微镜对荆州市纪南镇雨台村张大冢战国墓地出土12件青铜器进行成分与金相分析。结果表明,12件青铜器分别为铅锡青铜、锡铅青铜和锡青铜3种材质,铅锡(或锡铅)青铜器普遍含铅量较高,青铜器多以铸造成形,铜盘均采用热锻加工技术。不同类型及使用功能的器物,其合金成分与金相组织存在明显差异。张大冢墓地作为战国中晚期的楚国下等级贵族家族墓地,出土青铜容器也多为素面薄壁,锈蚀较为严重,但其出土青铜器的合金配比、制作技术及机械性能均展现出战国中晚期楚国工匠已经拥有成熟的青铜合金、铸造以及加工技术,也揭示出当时工匠有意识地在青铜明器与实用器的合金技术上存在区别对待,为全面认识东周时期楚都纪南城青铜冶铸业的发展状况提供科学依据。

辽中南城市群新型城镇化发展与土地利用效益耦合协调研究

研究构建了新型城镇化发展水平与土地利用效益综合评价体系,运用熵值法测算了辽中南城市群各城市新型城镇化发展综合指数与土地利用效益值,建立了耦合度模型、耦合协调度模型和相对发展度模型,探究了2010—2022年辽中南城市群新型城镇化发展与土地利用效益耦合协调水平。研究发现:辽中南城市群新型城镇化发展与土地利用效益耦合协调度整体上呈上升趋势,但两系统间尚未实现良性互动,各地区耦合协调水平存在明显差异,沈阳和大连两地耦合协调度较其他地区高出很多。

RS and GIS-based Analysis on Dynamic Changes of Landscape Pattern on Urban-rural Fringe——A Case Study of Licheng District, Jinan City of China

By using GIS, RS and landscape ecology, LandsatTM (1993 and 2009) and ETM (2001) remote sensing images of Licheng District of Ji’nan City, Shandong Province were interpreted, and dynamic changes of landscape pattern in the district were analyzed at the levels of class and landscape. The results showed that during the 16 years the landscape pattern in the district had changed significantly. (a) From the perspective of patch category, areas of arable land, woodland and grassland decreased unceasingly, and arable land accounted for the largest reduction from 488.15 km 2 in 1993 down to 324.37 km 2 in 2009, witnessing a reduction rate of 33.56%. But the patch quantity and fragmentation increased, patch connectivity reduced. Spatial pattern of construction land expanded and its area witnessed a significant increase of 147.05%. Patch cohesion index increased and connectivity grew better. (b) From the perspective of overall landscape, patch quantity, contagion and perimeter-area fractal dimension decreased, patch shape became simple, the Shannon’s diversity index, Shannon’s evenness index and splitting index increased, landscape heterogeneity rose. With the rapid social and economic development, landscape pattern will be more and more influenced by human behaviors

广西横州杨村红陶工艺调查

通过对横州市峦城镇杨村红陶工艺的调查,发现其原料以横州本地陶土为主,高岭土为辅进行配置,胎料具有高铁高钾的特点;制作工艺以手工轮制为主,辅以泥条盘筑等方法;烧制窑炉在引进电窑、气窑的同时,还保留了独特的传统龙窑;产品以制作大型的红陶器物见长,所生产的特色器物有酒熬、金坛、平底罐等。历史上的杨村可能在广西窑业技术交流与传播中发挥了特殊贡献,钦州和宾阳邹圩两地制陶技术的源头都有线索指向杨村。整体而言,杨村红陶的工艺、炉窑和产品都极具特色,其背后丰富的历史、文化、科学等价值值得进一步挖掘与整理,以便更好地助力当地非遗的传承与保护。

南宁园博园中华城市展园植物应用调查与分析

为探讨南宁园博园中华城市展园中植物资源及应用现状,采用实地调查和文献查阅等方法,对42个中华城市展园中植物的种类、生活型、乡土性、观赏型、应用频度等进行调查与分析。结果表明:南宁园博园中华城市展园植物共有86科183属216种,其中豆科(Fabaceae)、禾本科(Gramineae)、大戟科(Euphorbiaceae)、棕榈科(Arecaceae)为优势科;乔木、灌木、藤本、草本分别为74、68、6、68种,其中乡土植物和外来植物分别有89和127种;观花、叶、果、形、枝干植物分别有109、74、25、53、9种;应用频度高于50%的植物有红花檵木(Loropetalum chinense)、朱蕉(Cordyline fruticosa)、沿阶草(Ophiopogon bodinieri)、地毯草(Axonopus compressus)。根据研究结果对城市展园植物应用方面存在的问题提出相关建议,为进一步优化城市展园及南宁市公园植物景观提供参考。

RCEP背景下南宁跨境电商综合试验区发展的机遇与挑战

广西“一湾相挽十一国、良性互动东中西”的独特地理优势在RCEP背景下日益显现。南宁跨境电子商务综合试验区位于广西首府,对带动广西跨境电子商务发展至关重要。因此,本文分析了南宁跨境电子商务综合试验区的现状,探讨了RCEP给广西跨境电子商务带来的机遇,指出了广西跨境电子贸易发展中的问题和挑战,希望为RCEP背景下加快广西跨境电子商务发展提供对策建议。

利用新型遥感生态指数的南宁市环境质量动态变化分析

随着遥感技术的快速发展,利用遥感生态指数(Remote Sensing Ecological Index, RSEI)进行区域生态环境质量监测取得了一定进展,但是RSEI在应用不同区域中很少考虑空气质量对当地生态环境的影响。针对这一局限性,以南宁市为例,在RSEI的基础上,加入能精准监测城区高分辨率空气质量的差值霾指数(Difference Haze Index, DHI),构建新型遥感生态指数(new Remote Sensing Ecological Index, RSEInew),随后对比分析RSEI与RSEInew的平均相关度和PC1,验证了构建的RSEInew模型更具有表征区域生态环境的代表性。利用RSEInew模型对南宁市生态环境质量进行动态变化分析,结果表明,2013—2021年,南宁市生态环境质量得到优化,RSEInew提升了15%,整体生态环境水平处于中等(0.4~0.6)以上。

科技创新走廊赋能中小城市产业发展研究——以广西L市为例

科技走廊,是在空间地理上呈现出带状或者条状的科技创新集聚区。文章以广西L市为例,探讨中小工业城市如何通过借鉴科技创新走廊建设经验来促进产业发展。通过调研L市工业产业和企业现状,参考长三角G60科创走廊和广深港澳科技创新走廊沿线城市的成功做法,提出了完善城市科技发展规划、强化产业规划、建设产业联盟共享平台、成立科技商学院、设立科创中心、紧密协同高校与科研机构、构建科技金融生态系统等七个提升L市科技创新能力的建议,以期为其他中小城市提升科技创新能力、推动经济高质量发展提供参考。

海岸带城市蓝绿空间碳汇基础设施网络分析——以广西北部湾为例

为探讨蓝绿基础设施(Blue-Green Infrastructure,BGI)碳汇服务功能有益于指引城市碳中和目标建设,本研究以广西北部湾海岸带城市为例,运用形态学空间格局分析(Morphological Spatial Pattern Analysis,MSPA)法、连通性分析法以及电路理论,构建蓝绿基础设施碳汇网络,讨论对应的固碳增汇对策。结果表明:2020年研究区蓝绿空间碳汇总量为735524.09 tC·a^(-1),其中绿色空间碳汇总量为588680.06 tC·a^(-1),蓝色空间碳汇总量为146844.03 tC·a^(-1),单位面积碳汇量“蓝”高于“绿”;共提取63个碳汇源地斑块,20个核心源地斑块,绿色空间核心源地总面积为6814.31 km^(2),蓝色空间为899.05 km^(2),核心源地主要分布在东西两侧及南部沿海地带;共提取出24条生态廊道,绿廊共长122.21 km,蓝廊为52.75 km,呈环状分布,中南部地区分布较密,连通性强。本研究结果可为“碳达峰与碳中和”(简称“双碳”)背景下海岸带城市的保护与可持续发展提供建设思路。

公园城市理念下的北京朝南万亩森林公园规划设计研究

文章以践行公园城市理念的出发点,通过塑造城市内自然生态基底,融合城市产业和功能,营造与城市空间共融的城市多功能复合空间等多种措施营造良好的城市环境,完善城市功能,弘扬城市特色文化,营造美好的城市生活。

Comparative Analysis on Observation Data of the Transfer Station in Nanning National Weather Station

[Objective] The research aimed to analyze difference of the observation data by transfer station in Nanning National Weather Station. [Method] By using observation data (atmospheric pressure, temperature, relative humidity, wind direction and speed, precipitation, sunshine, etc.) from January to December in 2000 at old and new Nanning National Weather Station, difference of the each meteorological factor was contrasted. Main reason for difference of the each meteorological factor was analyzed from altitude, underlying surface property and station environment. [Result] Atmospheric pressure and temperature at new station were both lower than that at old station, while relative humidity and wind speed were both higher than that at old station. Rainfall and sunshine had big differences at new and old stations, but variation did not have rule. Main reasons for obvious difference of the meteorological factor were that altitude, observation environment, terrain and underlying surface property at new and old stations were different. Influences of the altitude and observation environment were especially significant. [Conclusion] The research provided basis for continuity and homogeneity correction of the data sequence at Nanning National Weather Station.

1990—2020年南宁市土地利用时空变化

为揭示南宁市土地利用的时空变化规律,运用地理信息系统(Geographic information system,GIS)技术和土地利用动态度、利用程度和转移矩阵等方法,深入分析1990—2020年南宁市土地利用的时空演变特征。结果表明,1990—2020年南宁市各土地利用类型的变化明显、土地利用变化的总体速度加快,建设用地和未利用地增加且表现为增速,耕地、林地、草地和水域减少且表现为减速;南宁市的土地利用程度处于中等水平,随着人为活动对土地的不断干扰和影响,土地利用程度水平呈逐渐升高的趋势;30年间南宁市共有1051.61 km2的土地利用类型发生转移,其中建设用地和未利用地表现为净转入特征,耕地、林地、草地、水域表现为净转出特征。

南宁市历史遗留废弃矿山生态修复问题及技术分析

南宁市历史遗留废弃矿山主要生态环境问题有地质环境问题、土地损毁、植被破坏等。南宁市矿山生态修复技术包括表层岩溶带修复、临空面修复、陡坡放缓技术、植物种群配置技术、客土挂网微生物喷播技术、植生袋技术和截排水沟辅助工程等。经过多年的矿山地质环境治理,南宁市部分矿山地质环境取得较好的治理效果和明显的环境、经济、社会效益,达到了减灾防灾、控制水污染、修复山体生态环境的目的。

南宁市制造业高质量发展路径及对策研究

在全球产业链供应链格局深度重构和科技革命的大背景下,南宁市制造业持续稳健发展,但仍面临诸多挑战。本文分析了南宁市制造业的发展现状、存在问题及面临的机遇与挑战,从规模结构、创新能力、效率效益、绿色发展、开放合作五个方面提出了针对性的对策建议,旨在推动南宁市制造业实现高质量发展。