The source and formation characteristics of the Zhujiadun gas reservoirs in the Yancheng Sag, Subei Basin

The Yancheng Sag is a favorable exploration area in the Subei Basin. However, the key geological understanding of the natural gas source and reservoir formation characteristics of the sag is still controversial. Based on a set of organic geochemical experiments conducted on natural gas and associated condensate oil of the first member of the Funing Formation (E1f1) in well YCh5 and well data analysis, the oil-gas resources and reservoir formation model in the Zhujiadun gas reservoir in the Yancheng Sag, Subei Basin, were investigated. The results of this study are as follows. (1) The natural gas in the Zhujiadun gas reservoir is dry gas with high methane content, low heavy hydrocarbon content, and high maturity. The characteristics of carbon and hydrogen isotopes in the natural gas indicate that the natural gas is oil-cracked gas, which mainly originates from the source rocks of the Permian Qixia Formation. (2) The condensate oil from well YCh5 with a high degree of maturity has a high pristane/phytane ratio, low gamma-paraffin abundance, and low tricyclic terpene abundance, indicating a mixture of the Upper Paleozoic condensate oil and Cenozoic crude oil. The saturated and aromatic hydrocarbons have similar δ13C values to the Cenozoic continental crude oil. These features suggest two sources of condensate oil. (3) Oils generated from the source rocks of the Qixia Formation were cracked into highly mature gas after deep burial, which migrated along large faults into the sandstones of the E1f1 and K1t1 members. This type of reservoir was effectively preserved beneath the overlying mudstone cap rocks. Therefore, it can be inferred that a play fairway might occur in the eastern zone of the faults connected to the Paleozoic source rocks in the Yancheng Sag since this zone has similar petroleum geological conditions to well YCh5. Therefore, this zone is a favorable area for further exploration.

Influence of Artificial Cofferdam and Spartina alterniflora Expansion on Evolution of Suaeda salsa Marsh in Yancheng Coastal Wetland of East China

Suaeda salsa is an important local species in the intertidal beach of the Western Pacific coast. However,under the artificial cofferdam and Spartina alterniflora expansion,Suaeda marsh has degraded seriously. Therefore,using Yancheng Nature Reserve as a case study area,taking ETM+images in 2000,2006 and 2011 as the basic data sources,we revealed the evolution characteristics of Salsa marsh which was impacted. The research results are as follows. From 2000 to 2011,Salsa marsh area in the artificial area tempestuously degraded,decreasing by 87. 158%,more than 22% than those in the natural area. The landscape was fragmentized. Landscape polymerization degree index dropped from 95. 780 to 65. 455,more than 16% than those in the natural area. The mean patch area fell down to 21. 429 ha from 389. 333 ha,more than 11% that in the natural area. Compared to the steady change in natural conditions,the area was reduced by 118. 167 ha/a from 2000 to 2006,while during 2006-2011,it was only 51. 500 ha/a in artificial area. As for spatial change of landscape,in artificial area,the Salsa marsh centroid moved forward to the southeast with 666. 350 m,but that in natural area moved forward to the north with 1 042. 710 m from 2000 to 2006. From 2006 to 2011,the centroid moved forward to east and north respectively. Artificial cofferdam transformed the area into freshwater ecosystem,and meanwhile the freshwater was beneficial to Reed marsh. During 2000 to 2006,in the artificial area,539 ha Salsa marsh controlled by cofferdam transferred into reed marsh and aquaculture ponds,of which the transformation rate was nearly 4% higher than that in natural area. From 2006 to 2011,178 ha Salsa marsh was transferred into reed marsh,the transformation rate was 20% higher than that in natural area. With rapid spreading and strong competition of Spartina species,the coastal wetland has formed the pattern of " Salsa – Spartina marshes". From 2000 to 2006,in artificial area,15. 24% of Salsa marsh was transferred into Spartina marsh,of which the transformation rate was13% higher than that in natural area. And from 2006 to 2011,30. 07% Salsa marsh was replaced by the Spartina marsh in artificial area,the rate was almost 10% higher than that in the natural area.

Driving Effect of Theme Cultural Tourist Destination Attributes on Tourists' Place Attachment: A Case Study of Yancheng City in Changzhou

From the perspective of man–land relationship, Yancheng City(ruins of Yancheng in the Spring and Autumn Period) as a typical theme tourist destination is selected to construct the structural model of driving effect of tourist destination attributes on tourists' place attachment, and carry out the empirical research. The results show that attributes of Yancheng City contain 4 dimensions, and tourists' perception of the attributes declines in the sequence "recreational and entertainment attribute→ attribute of culture of the Spring and Autumn Period→ attribute of landscapes and ruins→ attribute of humanistic concern"; the four-dimension attributes vary greatly in driving tourists' place attachment, recreational and entertainment attribute and attribute of culture of the Spring and Autumn Period have obvious positive driving effect, attribute of landscapes and ruins and attribute of humanistic concern have poorer driving effect; generally speaking, driving effect of tourist destination attributes on tourists' place attachment is demonstrated as "highlighted value functions of tourist destination attributes→‘predominant area' of tourists' perceptual experience→ obvious driving effect on tourists' place attachment" and "hysteretic value functions of tourist destination attributes→‘vulnerable area' of tourists' perceptual experience→ weakened driving effect on tourists' place attachment"; driving effect of the overall attributes of tourist destination on tourists' place attachment is to be further improved and optimized.

A Study on the Development of Cultural Tourism Industry in Yancheng

Culture is an essential condition for the rapid and healthy development of the tourism industry.However,tourism provides a platform for cultural exchange and communication,injecting a strong impetus to the development of the cultural industry.Under the background of the era that both culture and tourism industries have become national strategies,how to promote and realize the combination and interaction of culture and tourism industry is a practical problem that needs to be solved urgently.Based on taking Yancheng salt culture and seashore wetland ecological culture as the case analysis,this article hackles the integration advantages of Yancheng and tries to find out the deficiencies.On the basis of the evaluation and analysis between culture and the differences in the comprehensive development level of tourism industry,this paper discusses the characteristics and mechanism of the combination of culture and tourism industry,proposes a coordinated development pattern of culture and tourism industry,and on this basis provides the corresponding strategies and suggestions of this pattern in Yancheng.

Yancheng Develops Foreign-funded Enterprises

Yancheng City, once neglected by investors, has become the focus of foreign investment in recent years. Beginning in 1987 and to the end of 1993, Yancheng had set up 875 foreign-funded enterprises, making use of US$226 million in foreign capital—530 of them approved last year alone with foreign capital worth US$109 million. Those in operation rank among the most advanced foreign-funded enterprises in Jiangsu Province and the country.

Comparative Analysis on Activity Patterns of CG between Lianyungang and Yancheng

[Objective]The research 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 eastern coast of Jiangsu were analyzed and contrasted. [Result]CG characteristics in Lianyungang 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 highoccurrence period was both in summer. Daily change trend of CG in the two sites was consistent. High-occurrence period of the lightning was in afternoon 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 Yancheng was more concentrated,and mainly concentrated in the west,namely near Jiangying Town and Louwang Town. Distribution characteristics 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 Yancheng,we could share and complement data in the two cities better,and serve for routine lightning prevention and early-warning better.

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。

遗产综合体构建研究--以盐城世界自然遗产为例

世界遗产管理已经进入可持续、高质量发展的新阶段,亟须探索保护与发展联动的管理模式。借鉴“旅游综合体”这一功能复合、高效互动、以点带面的旅游开发模式,在遗产地构建“遗产综合体”,即以遗产保护为核心,由与遗产相关的监测、研究、展示、服务、产业等多种设施或机构以及管理体制、利益相关者协调机制等制度环境共同构成的功能复合体。它遵循多元综合、保护与发展联动、区域促进等原则,旨在实现遗产保护与地区可持续发展的双重目标。以中国黄(渤)海候鸟栖息地(I期)为例,探讨盐城遗产综合体的现状、问题和优化对策。

乡村振兴视角下盐城市乡村民宿高质量发展策略研究

乡村民宿因其扎根于乡村的自然属性,获得了快速发展和不断升级,已成为助力乡村振兴的有效手段。得益于良好的发展基础,近年来盐城地区乡村民宿发展迅速,但还存在着发展层级差异大,供需两端不够匹配;滞后于国家标准,管理水平有待提高;缺乏集群效应,配套供给有待完善等问题。对此,建议加强顶层设计,统筹推进乡村民宿发展;强化标准管理,提升乡村民宿服务水平;实施联农带农,实现民宿乡村有机融合;注重宣传推介,打造乡村民宿立体品牌,以此推动盐城乡村民宿产业高质量发展。

盐宜铁路油气田区域选线方法研究

盐泰锡常宜铁路北起盐城,经泰州、无锡、常州,南止于宜兴。该线路是策应“交通强国”国家战略,推进长三角城市群区域一体化发展的需要。本文以线路走向中油田为切入点,利用数值仿真方法建立了油气开采沉降模型、爆炸波伤害效应模型和爆炸火球伤害效应模型,结果表明:(1)研究区最大沉降量为2.9 mm;盐城1号井喷时发生爆炸的安全距离为119 m;发生火灾时安全距离为141 m;(2)结合相关规范,综合得出拟建高速铁路与油气井最小安全距离不小于150 m;(3)对盐城至泰州段线路走向方案进行选线研究,将整体线路走向及卤汀河局部方案进行比选,综合确定了科学、经济、合理的线路方案,满足了铁路设计的总体目标。

盐城自然保护区盐沼植被分布动态监测及驱动力分析

为探究江苏盐城湿地珍禽国家级自然保护区盐沼植被时空演变规律,采用物候特征合成方法反演了1984—2021年保护区核心区4种盐沼植被(互花米草、芦苇、碱蓬和茅草)面积,分析其时空演变规律和驱动机制。结果表明:核心区盐沼植被总面积从11113.2 hm^(2)增长至16528.14 hm^(2),年均复合增长率为1.11%,主要得益于互花米草的保滩促淤能力;互花米草和芦苇通过占领大量碱蓬滩、茅草滩和光滩,面积分别增加了4968.62 hm^(2)和8806.95 hm^(2),年均复合增长率分别为26.67%和6.88%;受生态位竞争等自然因素和水产养殖基地等人工干扰的叠加影响,碱蓬和茅草面积分别减少了3494.25 hm^(2)和4867.38 hm^(2),年均复合增长率分别为-3.14%和-8.11%,适宜生境破碎化严重。

盐城市农业数字化转型现状·问题与发展建议

盐城市粮食种植面积和产量均居江苏省第一,是农业发展强市。为进一步提高盐城市农业现代化水平,促进农业数字化转型,梳理了盐城市农业数字化转型现状,从基础设施建设、产业链发展等方面总结了盐城市农业数字化转型过程中存在的问题;在此基础上,提出要加强数字农业基础设施建设,坚持数字人才培引,坚持数字赋能激活产业链,加强数据获取、利用和保护能力,坚持发展新业态新模式,加快体系和标准建设等未来发展建议。

野化放归丹顶鹤活动节律、家域特征和栖息地选择

了解野放丹顶鹤的运动模式、家域和栖息地选择的时间节律特征对丹顶鹤种群保护和栖息地管理尤为重要。基于GPS-GSM跟踪数据,综合运用3S技术、动态布朗桥模型、栖息地选择指数,研究了盐城海滨湿地野放丹顶鹤在不同生活周期的活动节律、家域的面积和重叠指数,以及栖息地选择。结果表明:(1)丹顶鹤日活动节律具有明显的周期性特征。丹顶鹤活动强度:育成期>越冬期>孵化期>育雏期,孵化期和育雏期日间活动强度平稳,育成期和越冬期呈“双峰”模式。(2)丹顶鹤95%家域面积均值介于(111.18±22.15)hm^(2)-(621.28±105.77)hm^(2),育成期((621.28±105.77)hm^(2))>育雏期((226.83±54.86)hm^(2))>孵化期((112.40±7.72)hm^(2))>越冬期((111.18±22.15)hm^(2));核心家域面积均值介于(0.53±0.26)-(45.78±6.66)hm^(2),育成期((45.78±6.66)hm^(2))>育雏期((12.73±3.67)hm^(2))>越冬期((5.18±1.59)hm^(2))>孵化期((0.53±0.26)hm^(2))。不同生活周期家域重叠值为31.08%-46.84%,不同年份重叠值为29.20%-76.21%。(3)家域尺度内,栖息地选择率具有周期性差异。孵化期选择中高覆盖度芦苇生境;育雏期选择水塘生境、中高覆盖度生境以及距水塘潮沟100 m以内生境;育成期选择水塘生境、低和中低覆盖度生境以及距离水塘0-100 m生境;越冬期选择水塘生境、中高覆盖度生境以及距水塘0-100 m生境。研究可为丹顶鹤种群保护和栖息地管理提供科学依据。

盐城地区方言词语的构成特征及内部差异研究

盐城地区方言分属江淮官话洪巢片和泰如片,具有江淮官话的典型特征。盐城地区方言已有的研究成果多集中于语音和语法,词汇研究成果较少。研究发现,在词语构成上,单纯词中的单音节语素构词,合成词中的复合式、重叠式和附加式构词,都较普遍;在内部差异上,盐城地区方言词语在音节数量、构词语素选择等方面都存在明显差异。根据已有调查材料,结合实地调查,分析盐城地区方言的词语构成和内部差异,可以深化盐城地区方言和江淮官话的研究。

盐城市科技成果转化效率评价及提升策略研究

科学评价区域科技成果转化效率,可有效促进区域科技成果转化和高新技术产业发展。文章利用DEA模型测算了盐城市11个县(市、区)2016—2021年科技成果转化效率,结果表明:2016—2021年,盐城市科技成果转化综合效率整体呈现上升趋势,从0.713上升至0.929;盐都区、阜宁县、亭湖区成果转化效率均值超过0.80,为良好发展地区,其他8个县(市、区)成果转化效率均值在0.60~0.80,处于中等发展地区。据此剖析了影响盐城市科技成果转化效率的主要因素,提出了提升盐城市科技成果转化效率的对策建议。

江苏盐城小微湿地高质量发展路径研究

小微湿地是湿地生态网络的重要组分,推动小微湿地高质量发展是盐城“国际湿地城市”建设的重要内涵。分析盐城五期土地利用矢量数据后得出:在数量上,盐城小微湿地呈现明显增长趋势并趋于稳定;在空间上,分布广泛而又相对集中;在高质量发展上,还面临着生态质量、管理、开发利用等方面问题。在此基础上,提出盐城小微湿地高质量发展路径。首先,坚持功能优先,加强小微湿地保育与生态修复;其次,坚持效益优先原则,合理选择“湿地+”保护与利用模式;再次,坚持协同推进,从规划、法律法规、人才队伍、宣传教育、公众参与和资金投入等方面建立小微湿地开发与保护的保障体系,扎实推进小微湿地高质量发展,创建小微湿地保护与开发利用的盐城典范。

盐城市主要入海河流着生藻类群落特征及水生态评价

为研究盐城入海河流水生态质量状况,于2022年5月和9月对盐城主要入海河流着生藻类群落结构进行调查,并基于河流水生态环境质量综合评价指数对10条入海河流进行水生态评价。结果表明,全年水质优Ⅲ类以上断面比例为70%,高锰酸盐指数和溶解氧是影响断面水质的主要影响因子;着生藻类香农维纳(Shannon-Wienner)多样性指数(H′)为2.77~4.4,平均值为3.97,评价级别总体为优秀。调查发现,着生藻类包括硅藻、绿藻、蓝藻、裸藻、甲藻、隐藻和黄藻共7门129种,其中5月发现着生藻88种(属),9月发现着生藻95种(属),硅藻门为全年优势种。河流水生态环境质量综合评价指数(WEQI)评价结果为良好,良好级别占比80%,制约盐城主要入海河流生态质量综合指数的因素为水质和生境。

盐城市亭湖区13000例艾滋病自愿咨询检测者情况分析

目的 归纳总结盐城市亭湖区13000例自愿咨询检测者患艾滋病的情况与因素。方法 选择2019年1月—2023年1月在盐城市亭湖区疾病预防控制中心自愿咨询检测艾滋病的被检者13000例进行回顾性分析,汇总患者一般资料包括性别、年龄、学历、婚姻情况等,总结自愿咨询检测艾滋病人群的情况,同时统计艾滋病阳性检出率,归纳咨询检测原因。结果 汇总13000例自愿咨询检测艾滋病的被检者资料发现,男性占比率高于女性,20~39岁占比率高于其他年龄阶段,大专及以上学历占比率高于低学历人群,已婚人群自愿咨询检测占比率高于未婚人群(P<0.05)。此次13000例自愿咨询检测艾滋病的被检者中,总计检出HIV阳性患者2251例,检出率为17.32%,归纳咨询检测原因发现,配偶HIV阳性、男男行为阳性占比率最高。结论 此次盐城市亭湖区自愿咨询检测艾滋病人群中,男性咨询者较多,年龄多集中于20~39岁,高学历咨询者较多,且已婚人士较多,应加大宣传力度,鼓励更多女性、不同年龄阶段人群、不同学历人群积极参与艾滋病咨询检测,及时进行艾滋病筛查,遏制其传染性,保障日常生活健康、安全。

盐城地区高职学生创业孵化园运营机制研究

近年来,中国高等教育体系在创新驱动发展的大背景下,积极响应国家创新型国家建设的呼唤,努力培养具备创新创业精神和实践能力的人才。高职院校创业孵化园作为服务型创新创业平台,力求为学生提供良好环境,提高创业成功率。文章通过分析盐城地区高职院校创业孵化园的运营现状和问题,就如何进一步提高盐城地区高职院校高质量创业人才培养水平的目标,提出了提升创业孵化园运营成效的对策建议。