Distribution characteristics of historical earthquake classes in Jiangsu Province and South Huanghai Sea region

According to the analysis on the characteristics of historic earthquakes in Jiangsu Province and South Huanghai Sea region, the historical earthquakes in the studied area are divided into two kinds of comparatively safe class and comparatively dangerous class. Then the statistical result of earthquake class, the characteristics of geo-graphical distribution and geological structures are studied. The study shows: a) In Jiangsu Province and South Huanghai Sea region, the majority of historical strong earthquakes belong to comparatively safe class, only 13.8% belong to comparatively dangerous class; b) Most historical earthquakes belong to comparatively safe class in the land area of Jiangsu, eastern sea area of Yangtze River mouth and northern depression of South Huanghai Sea region. However, along the coast of middle Jiangsu Province and in the sea area of South Huanghai Sea, the distribution of historical earthquake classes is complex and the earthquake series of comparatively dan-gerous class and comparatively safe class are equivalent in number; c) In the studied area, the statistical results of historical earthquake classes and the characteristics of spatial distribution accord very well with the real case of present-day earthquake series. It shows that the seismic activity in the region has the characteristic of succession, and the result from this study can be used as a reference for early postseismic judgment in the earthquake emer-gency work in Jiangsu Province.

Pattern Change and Regional Disparity Tendency of Cultivated Land Use in Jiangsu Province

The study has examined the tempo-spatial patterns of cultivated land use change in Jiangsu province. A principal component analysis （PCA） of 18 selected indicators of cultivated land use during the period 1970-2010 identified 2 main pat- terns of change in planting productivity and economic efficiency. A major shift from production-centered pattern to profit-oriented one occurred in 1984, the time of grain yield surplus and the mitigation of population pressure. In response to the impending Opened Market System, there was a notable tendency of higher efficiency and less productivity since 1997, as well as remarkable regional disparity of cultivated land use change spatially. It revealed a relative decrease in grain cropping share, crop- ping scale and cultivation intensity in South Jiangsu, especially in Tai-Lake region, and the reverse in North Jiangsu. Some suggestions for the future were finally dis- cussed from the above findings.

Assessment of Waterlogging Risk in Lixiahe Region of Jiangsu Province Based on AVHRR and MODIS Image

Four images of 1991 AVHRR, 2003 and 2007 MODIS were used to extract waterlogging inundated water of three years, and three inundated water maps were overlaid to estimate waterlogging affected frequency. Based on wa-terlogging affected frequency, waterlogging hazard of pixel scale was assessed. According to the weighed score of area percentage of different waterlogging affected frequency in 13 counties/cities of Lixiahe region, waterlogging hazard rank of every county/city was assessed. Waterlogging affected frequency map and 1km×1km grid landuse map were used to assess waterlogging risk of pixel scale; and then waterlogging risk rank of every county/city was assessed by the similar method by which waterlogging hazard rank of every county/city was assessed. High risk region is located mainly in core zone of Lixiahe hinterland, medium risk region is adjacent to high risk region, and low risk region is located in the most outlying area of risk zone and mainly in south to middle part of Lixiahe region. Xinghua and Gaoyou belong to high risk city, Jiangyan belongs to medium risk city, and the other counties/cities have low or lower waterlogging risk. The method of assessing waterlogging risk in this paper is simple and applicable. This paper can provide guidance for the waterlogging risk analysis in broader area of Huaihe River Basin.

Study of aquatic chemical characteristic in some bays along the coastal region of Zhejiang Province

In this paper,the aquatic chemical characteristics in the Hangzhou Bay,Xiangshan Bay and Leqing Bay along the coastal region of Zhejiang Province are discussed . Results show that the seasonal variations of chemical elements are obvious. The distribution of silicate in Hangzhou Bay and contents of dissolved oxygen and nutrient in the Xiangshan Bay are found to be unusual in winter. Correlations among the elements are complex. The content of nutrient in the Hangzhou Bay is higher than that in Xiangshan Bay and the content of nutrient in the Xiangshan Bay is higher than that in the Leqing Bay . The variation of the ratio of N/P is obvious. This reflects the aquatic chemical characteristics in the bay. Finally, this paper also discusses the reason why the aquatic chemical characteristics in the bays are unusual.

Suitability evaluation of regional coastal ecotourism based on SOM neural network model: a case study of Qingdao, Yantai, Weihai and Rizhao of Shandong Province

Development of coastal ecotourism has been a,focus of Shandong government, and the suitability evaluation of regional eoastai ecotourism is crucial for the reasonable plan and sustainable development of Shandong coastal ecotourism. By using MATLAB language to establish a SOM neural network model, this＇ paper evaluates the eoastal ecotourism suitability of four regions, Qingdao. Yantai, Weihai and Rizhao of Shandong Province and divides 33 subordinate regions of those four cities into four categories, i.e. regions poorly suitable for ecotourism resources, regions highly suitable for coastal ecotourism, regions secondly suitable for coastal ecotourism, regions ordinarily suitable.for coastal ecotourism, Related suggestions on development of regional coastal ecotourism have been given in the final conclusions.

ENVIRONMENTAL FEATURES AND WATERENVIRONMENTAL PROBLEMS IN THE CONTIGUOUSREGION OF JIANGSU,SHANGDONG,HENANAND ANHUI PROVINCES

Owing to intensive human activities and the floods of the Huaihe River in historic peiod, the contiguous region of Jiangsu, Shandong, Henan and Anhui provinces is suffering from a variety of environmental problems and naturaldisasters, of which water pollution and drought-flood disasters are most observable. Considering the special location andenvironmental status of the contiguous region, advices are proposed in the paper: perfecting trans-regional managementssystem of water environment incorporating basin management agencies in local government activities; strengthening cooperation of two agencies: water conservancy agency and environment protection agency; enhancing integrated control ofwater pollution and flood-drought disasters; taking the interests of the whole river into acount and paying attention to bothstorage and drainage; broadening sources of water supply and inceasing water delivery; controlling pollutant discharge,developing water saving production system.

Distribution characteristics of historical earthquake classes in Jiangsu Province and South Huanghai Sea region

According to the analysis on the characteristics of historic earthquakes in Jiangsu Province and South Huanghai Sea region, the historical earthquakes in the studied area are divided into two kinds of comparatively safe class and comparatively dangerous class. Then the statistical result of earthquake class, the characteristics of geo-graphical distribution and geological structures are studied. The study shows: a) In Jiangsu Province and South Huanghai Sea region, the majority of historical strong earthquakes belong to comparatively safe class, only 13.8% belong to comparatively dangerous class; b) Most historical earthquakes belong to comparatively safe class in the land area of Jiangsu, eastern sea area of Yangtze River mouth and northern depression of South Huanghai Sea region. However, along the coast of middle Jiangsu Province and in the sea area of South Huanghai Sea, the distribution of historical earthquake classes is complex and the earthquake series of comparatively dan-gerous class and comparatively safe class are equivalent in number; c) In the studied area, the statistical results of historical earthquake classes and the characteristics of spatial distribution accord very well with the real case of present-day earthquake series. It shows that the seismic activity in the region has the characteristic of succession, and the result from this study can be used as a reference for early postseismic judgment in the earthquake emer-gency work in Jiangsu Province.

An Empirical Study on the Development of Regional Circular Economy Based on Ecological Efficiency： A Case Study of Jiangsu Province

Based on the theory of ecological efficiency,an empirical study on ecological efficiency and its changing path in Jiangsu Province during2005-2014 was conducted,and then the relationship between economic development and environmental pressure in the province was discussed by decoupling analysis. Finally,the main influencing factors of changes in ecological efficiency were analyzed by grey relational analysis method. The results showed that from 2005 to 2014,the resource efficiency of each indicator in Jiangsu Province fluctuated,while the environmental efficiency of most indicators increased slightly. The comprehensive resource efficiency and environmental efficiency also fluctuated,and the fluctuation range of the comprehensive environmental efficiency was larger than that of the comprehensive resource efficiency. Seen from the temporal evolution of ecological efficiency and circulation economy development pattern in Jiangsu Province,the leaping development mode was adopted in the province.The decoupling state of economic development and environmental pressure in Jiangsu Province was unstable,and they were in a state of strong decoupling,weak decoupling and expensive recoupling in most years. According to the results of grey relational analysis,comprehensive utilization of solid waste,industrial electricity consumption,electricity consumption of the whole society,domestic energy consumption,discharge of urban domestic sewage,and production of common industrial solid waste were the main influencing factors of changes in ecological efficiency in Jiangsu Province.

Residues of organochlorine pesticides in intertidal flat surface sediments from coastal zone of Jiangsu Province, China

Sixteen surface sediment samples were collected and analysed to evaluate the residues of organochlorine pesticides （OCPs） from intertidal fiat in Jiangsu Province. Overall, 22 OCPs were detected with total concentrations of OCPs ranging widely from 0.96 to 12.14 ng/g （dry wt）. Total hexachlorocyclohexane （HCH） and total dichlorodiphenyltrichloroethane （DDT） levels varied from 〈0.01 to 0.67 ng/g and from 0.23 to 4.85 ng/g, respectively. DDTs were the predominant compounds. The dominance of β-HCH indicated a history of HCH pollution. According to the ratios of （p,p＇-DDD＋p,p＇-DDE）/p,p＇DDT and o,p＇-DDT/p,p＇- DDT, new input of DDTs did not occur in most sites, and the main sources were historical usage of technical DDTs. OCPs such as dieldrin, endrin, p,p＇-DDD, and p,p＇-DDT exceeded the effects range low, showing adverse biological effects that would occasionally occur at some sites of the study area.

Analyses and Prediction of the Suitable Culture Period of Laver along the Coastal Areas of Jiangsu Province

[ Objective] The study aimed to analyze and predict the suitable period of laver along the coastal areas of Jiangsu Province. [ Method ] TO enhance the ability of meteorology to service laver culture, using the modern weather forecast technology, agricultural weather prediction was de- veloped according to the demands for meteorological conditions during laver production. [ Result] From south to north, there were certain differ- ences in the suitable periods of laver culture, breeding and harvesting, with slight variations. The forecast of the first and last days of certain water temperature could provide scientific references for the meteorological service of laver culture, and the service effect became better after it was modi- fied with the aid of the medium-term and long-term weather prediction. [ Conclusion] The research can offer theoretical bases for the culture of laver along the coastal areas of Jiangsu Province.

Numerical Investigation of High Tide Level Due to A Super Typhoon in A Coastal Region

A numerical model of the couphng between astronomical tide and storm surge based on Mike 21 is applied to the coastal regions of Zhejiang Province. The model is used to simulate high tide levels combined with storm surge during 5 typhoons, including two super typhoons, that landed in the Province. In the model, the atmospheric forcing fields are calculated with parametric wind and pressure models. The computational results, with average computed errors of 13 cm for the high astronomical tide levels and 20 cm for the high storm-tide levels, show that the model yields good simulations. Typhoon No. 5612, the most intense to land in China since 1949, is taken as the typical super typhoon for the de- sign of 5 typhoon routes, each landing at a different location along the coast. The possible extreme storm-tide levels along the coast are calculated by the model under the conditions of the 5 designed typhoon routes when they coincide with the spring tide. Results are compared with the high storm-tide levels due to the increase of the central atmospheric pressure at the base of a typical super typhoon, the change of tidal type, and the behavior of a Saomai-type typhoon. The results have practical significance for forecasting and minimization of damage during super typhoons.

SPATIAL-TEMPORAL DYNAMICS OF REGIONAL CONVERGENCE AT COUNTY LEVEL IN JIANGSU

The dynamics of regional convergence include spatial and temporal dimensions. Spatial Markov chain can be used to explore how regions evolve by considering both individual regions and their geographic neighbors. Based on per capita GDP data set of 77 counties from 1978 to 2000, this paper attempts to investigate the spatial-temporal dynamics of regional convergence in Jiangsu. First, traditional Markov matrix for five per capita GDP classes is constructed for later comparison. Moreover, each region’s spatial lag is derived by averaging all its neighbors’ per capita GDP data. Conditioning on per capita GDP class of its spatial lag at the beginning of each year, spatial Markov transition probabilities of each region are calculated accordingly. Quantitatively, for a poor region, the probability of moving upward is 3.3% if it is surrounded by its poor neighbors, and even increases to 18.4% if it is surrounded by its rich neighbors, but it goes down to 6.2% on average if ignoring regional context. For a rich region, the probability of moving down ward is 1.2% if it is surrounded by its rich neighbors, but increases to 3.0% if it is surrounded by its poor neighbors, and averages 1.5% irrespective of regional context. Spatial analysis of regional GDP class transitions indicates those 10 upward moves of both regions and their neighbors are unexceptionally located in the southern Jiangsu, while downward moves of regions or their neighbors are almost in the northern Jiangsu. These empirical results provide a spatial explanation to the "convergence clubs" detected by traditional Markov chain.

DYNAMICS OF REGIONAL URBANIZATION IN FUJIAN COASTAL AREA

Since the economic reform in 1978, urban development in China has become much more rapid and the dynamic mechanisms of urbanization more diversified. The 'Bottom Up' strategy becomes as important as, or even more important than, the 'Top Down' strategy as the dynamic mechanisms of regional urbanization. On the basis of major theories of development economics and regional economics, this paper analyzes the major dynamic mechanisms of regional urbanization in coastal area of Fujian Province from 1978 to 1989, and describes quantitatively the territorial differentiation of regional urbanization process under two major dynamic mechanisms using principal componet analysis.

2022-2023年江苏省豇豆区域筛选试验(盐城点)

为筛选适宜江苏省种植的高产、优质的豇豆新品种,2022-2023年承担了江苏省豇豆区域试验。盐城点两年的试验结果表明,13个参试品种中,苏豇17-35总产量最高,比对照增产29.29%,其次是帮达夏龙,比对照增产27.80%,第3名是盐豇5号,比对照增产26.19%。对照苏豇3号产量最低,其他12个参试品种都比对照有不同幅度的增产,综合性状优良,建议继续进行生产试验,进一步鉴定品种的丰产性和稳定性。

江苏海岸侵蚀及其防护工程研究进展

在分析江苏淤泥质海岸侵蚀特征的基础上,对江苏海岸防护工程发展历程进行了梳理。随着冲淤转换节点南移,江苏海岸侵蚀岸段范围逐渐扩大,滩面下蚀且海岸盐沼大面积消失;传统的局部海岸防护形式已显被动,迫切需要一种局部与宏观相结合、自然与工程相结合的可持续性侵蚀海岸管理策略。指出应将废黄河三角洲沿岸作为一个整体,建立宏观的“大型丁坝+离岸潜堤”相结合的整体海岸防护体系。在纵向上,构建以人工岬角为节点的岬湾相间海岸;在横向上,通过离岸潜堤消浪促淤来进行盐沼生态系统的修复与重建。

江苏省里下河地区洪涝灾害与综合应对策略

防洪除涝保安是保障地区经济社会稳定发展的重要前提。近年来持续变化的自然和人文条件给防洪减灾带来了一系列重大挑战,总结归纳了江苏省里下河地区洪涝治理特点及历程,在解析自然和人文因素对流域洪涝灾害主要影响基础上,从加快完善防洪除涝工程体系、升级防汛预警调度决策指挥系统、强化防洪抢险和应急救援能力、科学规范和管控人类活动4个方面探讨变化环境下强化流域防洪除涝能力与韧性的对策,为江淮平原河网完善防洪治涝体系提供了参考。

江苏地域文化下的农业区域公用品牌设计研究

目的研究江苏地域文化下区域公用品牌设计建设路径。方法以江苏地域文化内涵为价值基础,针对江苏地域文化特点、地域文化在品牌设计中的作用、江苏区域公用品牌发展现状等层面进行分析,融合优质品牌设计案例解析,提取可视觉化江苏地域文化元素,对农业区域公用品牌设计路径展开研讨。结果融合江苏地域文化特质,构建“体系标准+地域差异+优势突显+营销聚合”理论型设计路径,打造前瞻型、通用型的农业区域公用品牌设计指南。结论地域文化背景带动下的区域公用品牌形象进一步实现了产品与消费者之间的可持续互动,带领消费者感受农产品从田间到手中的整个过程,促使更多具有地域代表性的区域公用品牌的涌现,以点带面地辐射并带动区域文化产业的提档升级,助力乡村振兴。

互花米草在江苏海岸的扩散现状及防治对策

互花米草作为我国沿海滩涂危害最大的外来植物,其防治已成为江苏省滨海湿地管理与保护的重要工作。(1)江苏省互花米草呈现出面积大、分布广、繁殖能力强、扩散风险高、治理难度大等特点。(2)不同治理技术各有优缺点,配合使用不同的综合治理技术,对环境影响较小,治理效果较好。(3)总结提出了构建预警监测体系、优化综合治理技术、降低人为干扰、强化科技支撑、开展治理后生态修复、构建长效管理和全民参与机制的防治策略,为其他地区互花米草的治理工作提供借鉴。

数字经济背景下江苏新零售模式创新研究

随着数字经济的快速发展,数字化的高质量转型已成为各个领域的重要挑战。在数字经济背景下,传统零售行业诞生出新模式——“新零售”,在数字技术的发展与带动下,零售行业各个环节都面临着重塑的局面。江苏作为经济大省,其新零售行业也在快速发展,并不断寻找新的发展机遇以应对各种新型商业模式的挑战。本文通过对江苏新零售发展现状及所面临问题的全面分析,从数字经济的角度系统探讨了新零售模式创新的理论框架和实施路径。研究表明,数字经济的引入有助于优化决策机制,推动新零售企业以数据驱动决策,进而提升新零售模式的创新能力和市场竞争力。本文提出了建立以数据为基础的决策机制、引入先进的算法和技术、加强线上线下融合、提升消费者体验等策略建议,旨在为江苏省新零售行业的创新发展提供具有参考价值的策略方案。