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Characterization of precipitation in the background of atmospheric pollutants reduction in guilin: Temporal variation and source apportionment

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Journal of Environmental Sciences 2020年第12期32卷 1-13页

作者： Ling Li Hong Li Liang Peng Yongshan Li Yi Zhou Fahe Chai Zhaoyu Mo Zhiming Chen Jingying Mao Wenxing Wang State Key Laboratory of Environmental Criteria and Risk Assessment Chinese Research Academy of Environmental SciencesBeijing 100012China College of Chemistry and Chemical Engineering Southwest Petroleum UniversityChengdu 610500China guilin Environmental Monitoring Center Station Guilin 541002China Scientific Research Academy of Guangxi Environmental Protection Nanning 530022China Institute of Environmental and Climate Research Jinan UniversityGuangzhou 511443China Environmental Research Institute Shandong UniversityQingdao 266237China

Rainfall samples were collected from three observation sites in guilin from 2013 to 2017, and the chemical composition characteristics of precipitation and the contribution made by different ion sources were analyzed when atmospheric pollutants levels were reduced. The results showed that acid gas emissions and atmospheric pollutant concentrations continued to decline during the study period. However, the change in the volume-weighted mean p H at the three sites suggested that acid rain pollution was not alleviated and began to deteriorate after 2015. The continuing downward trend for alkaline neutralizing ions(Ca^(2+), NH_4^+) in precipitation indicated that the reduction in alkaline neutralizing substances in the atmosphere was an important factor that led to the deterioration in acid rain across guilin. The principal component analysis and spearman correlation analysis indicated five sources of ions in precipitation. Quantitative assessment of these five sources indicated that fossil fuel combustion contributed the most ions concentration in precipitation at the three sites, followed by agriculture, terrestrial(crustal) sources, marine sources, and biomass burning. Long-distance airflow might affect the acidity, the electrical conductivity(EC), and ion concentrations in precipitation across guilin. The airflow trajectory from the west and southeast directions corresponded to higher acidity and ion concentrations. According to the current air pollution control strategy planned by guilin, reducing atmospheric coarse particles and NH_3 at the same time may potentially lead to further deteriorations in acid rain contents. Therefore, guilin needs to develop more reasonable pollution prevention measures that synergistically control atmospheric pollutants and acid rain pollution.

关键词： Precipitation chemistry Characterization Source contributions Synergistic control guilin

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A Comprehensive Evaluation on the Devonian-Carboniferous Boundary Stratotype Candidate Section in Nanbiancun, guilin, Guangxi

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Acta Geologica Sinica(English Edition) 1990年第1期64卷 69-79页

作者： Yu Changmin Nanjing Institute of Geology and Palaeontology, Academia Sinica 2This paper is extracted from some relevant chapters of a monograph. The authors who wrote the monograph are: Yu Changmin Ruan Yiping Xu Hankui Wang Shangqi Zhu Zhaoling Mu Xinan Wang Keliang Yin Bao' an Li Zhengliang Li Yukuan Guo Shuying Yao Zhaogui He Guiying Zhang Yue'e Lu Hongjin Huang Zhicheng Zhu Sizhao Yang Jiedong Wang Yinxi Ye Sujuan and Xu Tongchun.

This paper presents a comprehensive evaluation on the Devonian-Carboniferous Boundary (DCB) sectionin Nanbiancun. guilin. Guangxi on the basis of Palaeontological, biostratigraphical and sedimentarypetrological studies as well as microfacies analysis. REE and trace element analysis and isotopic dating. The DCB at this section conforms to the definition of this boundary and essentially measure up the criteriaand conditions for selection of the boundary stratotype. Up to 14 fossil groups are contained in the section. Thesection presents a general biostratigraphical framework with multispecies fossils zones, assemblage zones andmultiple groups of fossils and has latent preponderant conditions for magnetostratigraphic andchronostratigraphic studies. The boundary and point occur in a persistent and continuous monofacialcarbonate succession. and the section is located in a tourist city with convenient communication, where variousfacies of DCB sections are developed. allowing the correlation within a small area. So it is an ideal candidateboundary stratotype.

关键词： guilin Guangxi A Comprehensive Evaluation on the Devonian-Carboniferous Boundary Stratotype Candidate Section in Nanbiancun

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The Younger Dryas Event and Holocene Climate Fluctuations Recorded in a Stalagmite from the Panlong Cave of guilin

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Acta Geologica Sinica(English Edition) 1998年第4期72卷 455-465页

作者： Stein-Erik LAURITZEN Dapartment of Geology Bergen UniversigyNorway

: Comprehensive studies on a stalagmite from the Panlong cave, guilin, have shown that the isotopic records and sedimentary characteristics can reflect the changes of both palaeotemperatures and palaeorainfall, that is to say, it is possible to get some information about the changes in climate of the area from the speleothem. The results suggest that: (1) the Younger Dryas event might have persisted in the area from 11 300 to 10 800 a B.P.; (2) from 9000 to 7000 a B.P., the climate got warmer and wetter, and the summer monsoon was gradually enhanced; (3) from 7000 to 4500 a B.P., the climate was warm and wet, and the summer monsoon prevailed; and (4) from 4500 a B.P. on, the summer monsoon was weakened and the modern climate pattern appeared, but there were several cold and dry periods, namely, from 4000 to 2500 a B.P., ca. 2400 a B.P. and < 1000 a B.P.

关键词： Younger Dryas Holocene climate stalagmite guilin

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Influence of Meteorological Conditions on the Sugar Orange Industry in guilin

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Agricultural Science & Technology 2016年第4期17卷 972-976,1007页

作者：廖荣顺李忠波谭世杰彭碧云白先达荔浦县气象局广西桂林546600 桂林市气象局广西桂林541001

guilin sugar orange has advantages of good taste, harvest during the Spring Festival, marketable market, and it has got swift and violent development in recent years. Sugar orange yield and quality is closely related to meteorological conditions, so in order to study the effect of meteorological conditions on the guilin sugar orange, the local conditions of each orange-planting county in guilin is analyzed, and study is also carried out on the severe weather and its defense measures. The suitable growth temperature for sugar orange is 23-29 ℃, and sugar orange is not tolerant to waterlogging and drought, like light, and has no resistance to ice cold. The main meteorological disasters include high temperature, low temperature, flood, drought, wind, hail, etc. Reasonable selection of orchard, scientific management, especially the management of plant diseases and insect pests, is the key to ensure high-quality high sand sugar orange.

关键词： Sugar orange Meteorological conditions Impact analysis guilin

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Analysis on Meteorological Conditions of Winter Cold Injury of Sugar Orange Industry in guilin

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Meteorological and Environmental Research 2017年第3期8卷 80-82,88页

作者： Liao Rongshun Wu Xiulian Li Zhongbo Wang Ling Su Hangzhou Bai Xianda Lipu Meteorological Bureau guilin Meteorological Bureau

Yield and quality of sugar orange are closely related to meteorological conditions,especially the low temperature and cold injury in mature period of fruit. To study the influence of winter cold injury on sugar orange industry of guilin,the chilling injury weather in each county of guilin planting sugar orange is analyzed,and the disastrous cold weather and its defense measures are studied. Frost,freezing and cold wave happen in guilin winter sometimes,and the disastrous weather could seriously harm maturing sugar orange or that in the tree,causing peel coke,dehiscent fruit,fruit drop and quality decline. It can effectively reduce the loss by chilling injury and guarantee excellent quantity and high yield of sugar orange by timely understanding weather change information,scientifically managing water and fertilizer,and doing film cover well.

关键词： Sugar orange Cold injury Meteorological conditions Analysis guilin

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Analysis of Meteorological Disasters in the Flowering and Fruiting Period of Sugar Orange in guilin

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Agricultural Science & Technology 2017年第5期18卷 873-876,883页

作者：廖荣顺伍秀莲汪玲粟杭州白先达荔浦县气象局广西荔浦546600 桂林市气象局广西桂林541001

The yield of sugar orange is closely related to meteorological conditions in the flowering and fruiting period, and meteorological disasters at the flowering and early fruiting stage seriously affect its yield. To study influences of meteorological disasters in the flowering and early fruiting stage on sugar orange industry in guilin, meteorological disasters in the flowering and early fruiting stage and its defense measures were analyzed and studied. The flowering and early fruiting stage of sug- ar orange in guilin is from March to June, and sudden change of temperature, thunderstorm, hale, hail, rainstorm and other natural disasters can cause the falling of large numbers of flowers and young fruit, damage of tree body, reduction of fruit in quantity, and decrease of its yield. Timely understanding information of disastrous weather and implementing management of water and fertilizer can effectively reduce the loss caused by meteorological disasters and ensue high quality and high yield of sugar orange.

关键词： Sugar orange Flowering and fruiting stage Meteorological disasters guilin

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Serene Escape in guilin

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China News Release 2023年第3期 74-76页

作者： Liao Yanchang Gui Rituan 不详

“guilin’s scenery is unrivaled throughout the world.”The famous saying has made countless people yearn for a trip to this city in south China’s Guangxi Zhuang Autonomous *** the gorgeous nature is pleasing to the ... 详细信息

关键词： guilin easing saying

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Analysis on the Variation of Rainfall Data from guilin Weather Station during 1957-2007

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Meteorological and Environmental Research 2011年第6期2卷 35-36,40页

作者： ZHENG Meng-qi ZHAO Hua-rong GUO Chun-qing College of Environmental Science and Engineering Guilin University of TechnologyGuilin 541004China Guangxi Key Laboratory of Environmental Engineering and Protection Evaluation Guilin University of TechnologyGuilin 541004China

[Objective] The research aimed to study the variation of rainfall data from guilin Weather Station during 1957-2007.[Method] Based on the daily rainfall data in guilin during 1957-2007,the trend,period and mutation of precipitation in guilin in 51 years were analyzed by using the trend analysis,wavelet analysis and Mann-Kendall non-parameter statistics test method.[Result] The rainfall in guilin in 51 years presented the rising *** rainfall variation was same in the first,second and third quarters of most years,except in the individual *** rainfall in the fourth quarter had the decrease trend,and the variation was obvious in each *** illustrated that the rainfall variation in winter was very unstable and had the decrease trend in recent *** as a whole,the variation of total rainfall in guilin wasn’t obvious and had the rise *** illustrated that the climate variation in guilin in 51 years wasn’t *** wavelet analysis showed that the rainfall variation in guilin had 15-year big period and the small period of 2-3 ***-Kendall non-parameter statistics test showed that the mutation situation of total rainfall in guilin in 51 years wasn’t *** the mutation situations in the second and third quarters were *** variation in recent 10 years was the most *** it was affected by the global climate variation.[Conclusion] The research provided the theory basis for analyzing the climate variation in guilin.

关键词： Precipitation data Variation trend Mutation analysis guilin China

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Plant Landscaping Characteristics of the Sweet Osmanthus Exposition Park in guilin City

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Journal of Landscape Research 2010年第4期2卷 73-75页

作者：黄莹桂林理工大学广西桂林541004

Through field investigation, the plant landscaping and its characteristics of Sweet Osmanthus Exposition Park in guilin were analyzed in terms of three aspects: the allocation of Sweet Osmanthus species, the collocation of Sweet Osmanthus and other plants, plants' arrangement in Sweet Osmanthus landscape garden, which would provide reference for the construction of the special categorized plants gardens.

关键词： Landscape architecture Plant landscaping Characteristics Sweet Osmanthus Exposition Park guilin City

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Relevant Analysis of Grassland Temperature and Ground Net Radiation in guilin

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Meteorological and Environmental Research 2011年第6期2卷 11-13,18页

作者： HUANG Lin CHENG Feng-juan Guangxi Meteorological Information Center Nanning 530022China Beihai Meleorlolgical Bureau Beihai 536000China

[Objective] The aim was to study the relevance of grassland temperature and ground net radiation in guilin.[Method] By dint of ground observation data and net radiation of national benchmark climate station in guilin from 2007 to 2009,the changes of grassland temperature and ground net radiation were expounded and their relations were pointed out.[Result] The annual changes trends of grassland temperature and ground net radiation in guilin were basically the *** average maximum value all appeared in summer(July to August).Monthly average lowest value appeared in winter(December to next January);monthly average grassland temperature and monthly average ground net radiation had positive *** temperature and ground net radiation had basically same distribution in four *** average largest value of ground net radiation in summer was the largest and average smallest value was the smallest;the average largest value of ground net radiation in cloudy days was the smallest and average minimum value was the largest;the daily difference was the largest in sunny day and daily difference was the smallest in cloudy *** daily changes trend of grassland temperature and ground net radiation in different weather state were basically the same;when it was sunny or cloudy,the daily largest value of grassland temperature and ground net radiation occurred between 15:00 and 19:00;when it was overcast,there was no distinct peak and daily *** largest value of the daily extreme value of grassland temperature and ground net radiation took place from 12:00 to 15:*** daily lowest value took place from 20:00 to 07:00 on the next day.[Conclusion] The study provided reference for the analysis of temperature changes in guilin.

关键词： Grassland temperature Ground net radiation Relevant analysis guilin China

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