CONSIDERATION OF HYDRODYNAMIC CHARACTERISTICS,SEDIMENTS & ENVIRONMENTAL PROBLEMS OF MUDDY COAST IN THE CONSTRUCTION OF LIANYUNGANG HARBOUR

After nearly 20 years of construction,we have successfully solved a series of hydrologic sedimentaryand environment problems encountered during the construction of the big deep water harbour inLianyungang which can now accommodate ships of 50000 tonnage.With the economic development,the channel of 50000 tonnage will be built soon, and of 100000 tonnage is under planning. Theconstruction of the international container shipping hub at the harbour is being accelerated in anticipationof the opening of the second Eurasian land bridge.The future development of the harbour will givegreat impetus to the local economy of Lianyungang City and make it an international city.

Climatic Change Characteristics of Sunshine Hours and Cause Analysis in Lianyungang City

[Objective]The research aimed to study climatic change characteristics of sunshine hours in Lianyungang and analyze its formation reason. [Method]Based on monthly sunshine hours,precipitation,cloudiness,haze days and vapor pressure from 7 stations of Lianyungang from 1961 to 2010,monthly,seasonal,annual and interdecadal change trends of the sunshine hours were analyzed by using MK test,linear trend analysis and Morlet wavelet. Meanwhile,the cause of change characteristics was analyzed. [Result] Monthly sunshine hours of Lianyungang showed bimodal distribution,and seasonal and annual sunshine hours had decreasing trend at different degrees. The interdecadal change of sunshine hours showed wave characteristics. The annual sunshine hours had multiple temporal-spatial scale features,and there was an obvious mutation in the late 1980s. Sunshine hours in Lianyungang was closely related to visibility,cloudiness,vapor pressure and haze,and they were important factors causing that sunshine hours significantly declined. [Conclusion]The research could provide reference basis for scientifically developing and using solar energy resource and reasonably adjusting industrial and agricultural structures.

Coastal wetlands in Lianyungang,Jiangsu Province,China:probably the most important site globally for the Asian Dowitcher(Limnodromus semipalmatus)

Background:Despite an increasing number of surveys and a growing interest in birdwatching,the population and distribution of Asian Dowitcher(Limnodromus semipalmatus),a species endemic to the East Asian-Australasian and Central Asian Flyways,remains poorly understood,and published information about the species is largely outdated.In boreal spring 2019,over 22,432 Asian Dowitchers were recorded in a coastal wetland at Lianyungang,Jiangsu Prov-ince,China,constituting 97.5%of its estimated global population.Methods:In 2019 and 2020,we conducted field surveys at Lianyungang to determine the numbers of Asian Dow-itchers using the area during both southward and northward migrations.We also assessed the distribution and abun-dance of Asian Dowitchers elsewhere along the China coast by searching literature and consulting expert opinion.Results:The coastal wetlands of Lianyungang are the most important stopover site for Asian Dowitchers during both northward and southward migrations;they supported over 90%of the estimated global population during north-ward migration in two consecutive years(May 2019 and 2020).This area also supported at least 15.83%and 28.42%(or 30.74%and 53.51%using modelled estimates)of the global population during southward migration in 2019 and 2020 respectively.Coastal wetlands in the west and north of Bohai Bay also have been important stopover sites for the species since the 1990s.Although comprehensive,long-term monitoring data are lacking,available evidence sug-gests that the population of the species may have declined.Conclusions:The high concentration of Asian Dowitchers at Lianyungang during migration means the species is highly susceptible to human disturbances and natural stochastic events.The coastal wetlands of Lianyungang should be protected and potentially qualify for inclusion in China’s forthcoming nomination for World Heritage listing of Migratory Bird Sanctuaries along the Coast of Yellow Sea-Bohai Gulf of China(Phase II)in 2023.Additional research is needed to understand Asian Dowitchers’distribution and ecology,as well as why such a high proportion of their population rely on the Lianyungang coast.

Change of Back Siltation in Lianyungang Harbor before and after Completion of the West Breakwater

On the basis of a comparison of the field hydrological, sediment and topographic data observed before and after the completion of the West Breakwater in Lianyungang Harbor, which has led to the change of topography from a strait to a bay, a synthetical analysis is conducted on the change of back siltation. The results show that it is the change of coast line and the consequent change of hydrological condition and sediment movement that has led to the change of back siltation in the harbor. This phenomenon is caused by the lag effects of water current, sediment movement and local adjustment of topography after the construction, and it tends to be stable. The results of analysis provide not only a basis for extension of Lianyungang Harbor into a deep water harbor, but also propose a case for the study of the change of back siltation in a harbor on muddy coast.

Comparative Analysis on Activity Patterns of CG between Lianyungang and Yancheng

[Objective] The reseamh aimed to contrast and analyze CG activity rules in Lianyungang and Yancheng. [Method] By using lightning location data, basic characteristics of lightning activities in Lianyungang and Yancheng both located at the eastem coast of Jiangsu were analyzed and contrasted. [Result] CG characteristics in Uanyungang and Yancheng were same, and negative CG was dominant. Monthly change activity rule of CG basically presented single-peak distribution, and peak value appeared in August. Monthly change of the lightning was drastic, and high- occurrence period was both in summer. Daily change trend of CG in the two sites was consistent. High-occurrence period of the lightning was in af- temoon and early morning, and occurrence frequency of the lightning in the morning was less. Spatial distribution of CG in Lianyungang and Yancheng was very uneven. Lightning activity in Lianyungang mainly concentrated in northwest and southeast areas of Donghai County and western area of Guannan County. Especially in Donghai County, it was the area where lightning strike density was the maximum. Lightning strike activity in Yanchang was more concentrated, and mainly concentrated in the west, namely near Jiangying Town and Louwang Town. Distribution characteris- tics of CG intensities in the two sites were same. Waveform changes of the positive CG in the two sites were slower than that of the negative CG, and current intensity concentrated from ＋ 20 to ~ 50 kA. [ Conclusion ] By contrasting and analyzing lightning activity rules in Lianyungang and Yanchang, we could share and complement data in the two cities better, and serve for routine lightning prevention and early-warning better.

Objective Forecast Method of Frost in Lianyungang City

Based on annual minimum air temperature, the minimum ground temperature, cloudiness, air pressure, wind velocity in Lianyungang City during 1971 -2010 and sounding geopotential height, wind direction, dew point and temperature at related stations, using mathematical stepwise regression method and SPSS statistical software, short-term prediction equations of daily minimum air temperature and daily minimum ground temperature at the observation station were established. According to the relationships between frost and temperature, ground temperature, based on local frost forecast standard, the short-term forecast equation was used to judge if frost occurred in Lianyungang City. Via real-time weather mo- nitoring, accurate and fine forecast and early warning, short-term objective forecast business system of frost in Lianyungang was established for a full range of effective service.

Design and Construction of The Great-West Dyke in Lianyungang Port

The The Great-West Dyke with a length of 6.7 km, the largest sea wall in China, was completed in June, 1994. This paper introduces structure options of nibble mound sea wall on soft foundation and a new type of armour block-hexagon multihole block (HMB) and a new method of treatment for soft foundation by using underwater explosion. Construction practice of some projects in China shows that by using this method good effect of treatment and marked economic benefit can be achieved by using this method.

Lianyungang's Famous Enterprises and Products

Jiangsu Suntory Food Co. Ltd.The company was established by jointinvestment from the China International TrustInvestment Corporation, the Jiangsu ProvincialInternational Trust Investment Corporation,

Lianyungang——Head on the New Eurasia Continental Bridge

Since the new Eurasia ContinentalBridge was formally opened in 1992,the East Bridge Tower-- Lianyungang-- has been attracting more and more attentionin the circles of transport and trade worldwide.In 1995, Lianyungang successfully organizedwhole line transport by rail for internationaltransit containers, and freight volume on theContinental Bridge is growing at an acceleratedspeed. At present, Lianyungang hasundertaken the task of transport for the totaltransit containers along the new EurasiaContinental Bridge. The countries and regionsthat make use of the Continental Bridge toconduct transport include the USA, SouthKorea, Japan, Kazakhstan and Hongkong.Between 1992 and 1995, a total of 8。

Lianyungang——A Would-be International Trade Centre

Lianyungang is one of China’s eight majorseaports, the East Bridge Tower of thenew Eurasia Continental Bridge. During theEighth Five-Year Plan period, opening tothe outside world and foreign-oriented econ-omy in Lianyungang City developed swiftly.Each year, foreign trade, the utilization offoreign capital, foreign project contractingand labour service export increased by over50 percent each. Its superiority, which

"Sunbird"Settled At Lianyungang Harbour——An Interview with Jiangsu Suntory Ltd

In spring this year,the writershad an interview at JiangsuSuntory Ltd,a Sino-Japanesejoint venture modern foodstuffenterprise founded 11 yearsago with a joint investment ofUS＄25 million,producingmainly Prince Brand beer andmalt as well as other serialproducts.

Administrations and Service Organs in the Lianyungang Development Zone

The Administrative Board of theLianyungang Development Zone isan executive administrative organimplementing unified leadership andmanagement over the development zone onbehalf of the Lianyungang People’sgovernment. According to the State’s lawsand regulations, the administrative board isresponsible for construction planning for thedevelopment zone, the execution of economicdevelopment programmes, the approval ofinvestment projects worth RMB30 millionor less, land use and building design, boostingpublic welfare in education, culture andsanitation, public security in the zone, andprotecting the legal rights of the

LIANYUNGANG DEVELOPMENT ZONE——A REVIEW OF THE PAST DECAD E CONSTRUCTION OF THE ZONE

Located at the easternextreme of the new Asian-European continental Bridge,the LianyungangDevelopment Zone was anarid and saline seashore tenyears ago,but today it hasbecome one of the mostdynamic opening areas inLianyungang City andJiangsu Province strewn withfactories and thoroughfares,churning out an annualindustrial output value ofRMB1.8 billion. The development zonewas approved by the StateCouncil to be established inthe Zhong Yun Dai area ofLianyungang City inDecember 1984.InSeptember of the followingyear,the city broke theground for the construction.

Lianyungang ETDZ

The Lianyungang Economic andTechnological Development Zone(LETDZ) was given approval to beestablished by the State Council in December1984. It has a planned area of 45 sq km, ofwhich seven sq km have already beendeveloped. Nearly 1,000 enterprises includingenterprises built with exclusively foreignfunds, Chinese-foreign joint ventures,cooperative firms and domestically associatedenterprises have been set up in the zone. Anumber of industrial parks have also been setup by the Philippines, Singapore, Taiwan,South Korea and other countries. Locatednear the port, the LETDZ is intended tobecome an export-oriented zone backed byhigh and new technology. The LETDZ willdevelop into a comprehensive zone combiningbonds, business and trade, finance with tourismand residence, headed by the two-wayeconomic exchange along the continentalbridge and based on the export processing,

Lianyungang Gaopin Renewable Resources Co.,Ltd.will build a 10,000-ton NdFeB waste treatment line

The project of Lianyungang Gaopin Renewable Resources Co., Ltd. is located in Donghai Hi-Tech Zone. Total investment of the project reaches 235 million yuan. After the completion of the project, it will build a 10,000 tons of NdFeB waste treatment line, a 1,000 tons of waste rare earth polishing powder treatment line and a 1,000 tons of waste rare earth phosphors treatment line. The construction of infrastructures of the project will be finished in 18 months and the project will be put into operation in 2020.

Natural and human-induced effects on grain size of surface sediments along the Lianyungang muddy coast,China

To examine spatial variations of grain-size characteristics caused by both natural and human-induced processes along the Lianyungang muddy coast,China,129 samples were collected and measured using standard sieving and sedimentation techniques.Results show that sediment diameter tends to increase with increasing water depth from nearshore to offshore.Size-frequency distributions indicate a gradual mixing process of coarse and fine diameter material.Grain size trend analysis indicates that a man-made structure,the West Breakwater,along with Liandao Island itself,has resulted in severe siltation in Haizhou Bay and the Lianyungang port area,where sediment quality is also poor.Results demonstrate that grain size can be used as a natural tracer to infer how sediments respond to the effects caused by both natural and human-induced processes.

基于遥感的海域环境变化监测分析

以杭州湾海域和连云港周边海域为研究对象,基于Landsat-5、Landsat-9的多光谱和热红外数据,对研究区的海域岸线和温度场信息进行提取,分析海域岸线变迁和温度分布变化特征。结果显示,研究区的海域岸线变化均较显著;海域温度在核电站运行前较为均匀,无明显温度分异,核电站运行后,因温排水排放,核电站周边海域温度出现明显分异;Landsat-9热红外数据温度反演结果可靠,可用于监测温排水对海域环境的影响。

文旅融合背景下城市特色文化品牌塑造策略——以连云港市为例

特色文化作为城市的“软实力”,已经成为城市竞争成功的要素,也是打造城市品牌的核心要素。在文旅融合背景下,城市旅游业的发展一方面要结合自身特有的历史文化积淀,形成独特的城市气质和文化符号,并依托文旅资源推进城市品牌化建设;另一方面要深化与地域特色文化、文化创意产业的融合,挖掘特色文化资源和文化内涵,塑造特色文化旅游品牌,以满足人们对个性化和多元化旅游产品的需求。

连云港海州区蔬果产业可持续发展困境与对策

在介绍海州区番茄等蔬果产业发展现状基础上,分析了蔬果产业可持续发展面临的问题,探讨了进一步促进蔬果产业发展的对策,以期为海州区蔬果产业提档升级提供助力,推动乡村振兴和农文旅结合,进而促进农民增收。