Development Mode of Mid-small Cities in Northern Jiangsu Based on the Growth Pole Theory

The development mode of mid-small cities in northern Jiangsu is analyzed on the Growth Pole theory.Depending on scales,endowment of resources,geographical positions,and industrial advantages of mil-small cities,we can divide the development mode of those mid-small cities within this context into five types:development through integration into big cities;independent development;resource-dependent development;single industry development;and mixed industry development.

Formation Laws of Inorganic Gas Pools in the Northern Jiangsu Basin

In the Northern Jiangsu basin there are high pure CO2 gas pools, low condensed oil-containing CO2 gas pools, high condensed oil-containing CO2 gas pools and He-containing natural gas pools, with the δ13Cco2 (PDB) values ranging from ?2.87%o to ?6.50%o, 3He/4He 3.71 × 10?6 to 6.42 × 10?6, R/Ra 2.64 to 4.5, 40Ar/36Ar 705 to 734, belonging to typical mantle source inorganic gas pools which are related to young magmatic activity. The gas layers occur in two major reservoir-caprock systems, the terrestrial Meso-Cenozoic clastic rock system and the marine Meso-Palaeozoic carbonate rock-clastic rock system. Controlled by the difference in the scale of traps in the two reservoir-caprock systems, large and medium-scale inorganic gas pools are formed in the marine Meso-Palaeozoic Group and only small ones are formed in the terrestrial Meso-Cenozoic strata. Inorganic gas pools in this basin are distributed along the two deep lithospheric faults on the west and south boundaries of the basin. Gas pools are developed at the intersected part of the ENE-trending faults that control the half graben and the E-W tenso-shear faults, mainly distributed near the Es1, Ny1 and Ny2-Q basalt eruption centres.

Analysis on Peasants' Diet Condition and Food Safety Awareness in Northern Jiangsu——From the Perspective of Economics

Taking three counties in northern Jiangsu (Suining,Ganyu and Sihong) as the respondents,the economic principles of food safety issues of rural areas in northern Jiangsu are described from three aspects which are information asymmetry,food supply and food safety issue and food consumption and food safety issue.From the two aspects-adverse selection of consumers and opportunistic behavior of producers,the paper introduces the influence of food safety issues of rural areas in northern Jiangsu.Based on the above analysis,economic theories for solving food safety issues of rural areas in northern Jiangsu are put forward:First,improve consumers' knowledge of food safety;Second,normalize the behavior of main bodies of production and management;Third,improve the current situation of information asymmetry of food safety;Fourth,accelerate economic construction of rural areas in northern Jiangsu,practically increase peasant income and living standard.

Modern changes of tidal troughs among the radial sand ridges in northern Jiangsu coastal zone

Using satellite images taken on different dates,GIS analysis of aerial photos,bathymetric maps and other field survey data,tidal troughs and major sand ridges in the northern Jiangsu coastal area were contrasted.The results show that there have been three types of movement or migration of tidal trough in this area:(1) Periodic and restricted,this type of trough usually developed along the beaches with immobile gully head as a result of the artificial dams and the swing range increased from gully head to the low reaches,so they have been obviously impacted by human activity and have longer swing periods;(2) Periodic and actively,this kind of trough,which swung with a fast rate and moved periodically on sand ridges,were mainly controlled by the swings of the host tidal troughs and hydrodynamic forces upon tidal sand ridge and influenced slightly by human constructions;(3) Steadily and slowly,they are the main tidal troughs with large scale and a steady orientation in this area and have slow lateral movement.The differences in migration mode of tidal trough shift result in different rates of migration and impact upon tidal sand ridges.Lateral accumulation on current tidal trough and deposition on abandoned tidal troughs are the two types of sedimentation of the tidal sand ridges formation.The whole radial sand ridge was generally prone to division and retreat although sand ridges fluctuated by the analysis of changes in talwegs of tidal troughs and shorelines of sand ridges.

Gap between Urban and Rural Economic Development in Less Developed Areas——A Case of Northern Jiangsu Area,China

Taking northern Jiangsu area as an example,economic disparity between urban and rural areas is described according to the data in 2000-2009 Jiangsu Statistical Yearbook.Result shows that there are significant differences in the rural and urban economic development in less developed areas,which are mainly reflected in the differences in per capita income,living standard,and Engel coefficient.Reasons for urban and rural economic disparity in less developed areas are analyzed.The asymmetry and immobility of rural and urban resources have objectively caused the income gap between urban and rural residents;urban industrial development,which is faster than agricultural development,has widened the income gap between urban and rural residents;and the differences in comparative labor productivity in rural and urban areas have enlarged their income gap.Countermeasures to minimize the urban and rural economic development gap are put forward,such as deepening the reform,realizing the free flow of economic resources between urban and rural areas,developing rural areas through urban development,exerting the function of urban areas in the coordinated development of urban and rural areas,paying attention to the agriculture and rural areas,and improving the comparative labor productivity of agriculture.

Coastal evolution of Yancheng, northern Jiangsu, China since the mid-Holocene based on the Landsat MSS imagery

Since the 1970s, remote sensing images have provided new information for the delineation and analysis of coastline changes, especially focusing on the short timescale changes. This paper, based on the Landsat MSS imagery, focuses on the coastline evolution of Yancheng, northern Jiangsu, China since the mid-Holocene. A zebra stripe image, which could reveal the ancient coastal evolution of Yancheng, was extracted from a Landsat MSS image. Based on the extracted black-white stripes, 19 surface sediment samples were recovered and analyzed to recognize the sedimentary characteristics of these stripes. It shows that most sand and silty sand samples appear on the white stripes, while silt and silty clay samples are on the black stripes. Sandy and muddy sediments present an alternating distri- bution pattern on the Yancheng coastal plain. A historical coastline map was drawn according to the previous research achievements of the paleo-coastal sand barriers and paleo-coastlines, and was superimposed on the zebra stripe image. The trend of the extracted zebra stripes is consistent with the historical coastlines, and it should be the symbol of the Yancheng coastline evolution. On the basis of ten sets of black-white stripes and previous research results, we divided the progression of Yancheng coastal evolution into three stages （i.e., the early stable stage （6500 a BP-AD 1128）, the rapid deposition stage （AD 1128-1855） and the adjustment stage （AD 1855-present））. Ten sets of black-white stripes were identified as the characteristic pattern of the coastline evolution on the Yancheng coastal plain.

基于推拉理论的苏北大学生返乡就业意愿影响因素分析

切实发挥好人才在乡村振兴战略实施中的作用,是我国全面推进中国式现代化新实践的应然选择,如何更好地引导农村大学生返乡就业、投身三农已成为社会各界广泛热议的话题。以苏北地区大学生为研究对象,运用推拉理论对其返乡就业意愿及影响因素进行问卷调研与实证分析。研究结果显示,苏北地区对于乡村振兴的宣传力度不够,学校职业规划教育不足,家庭支持力度不大,个人就业择业观念尚未转变。政府加大政策宣传力度,学校加强对毕业生就业观的教育引导,家庭理性看待大学生返乡就业,以及学生自身合理规划职业生涯是促进大学生返乡就业、增强返乡就业意识的有效路径。

耕地利用系统脆弱性诊断与影响因素识别——以江苏北部地区为例

研究目的:基于Vulnerability Scoping Diagram(VSD)框架测算江苏北部地区耕地利用系统脆弱性,揭示其时空演变规律与影响因素,差异化提出分区降“脆”策略。研究方法:CRITIC法、综合指数法、空间自相关分析、障碍度模型。研究结果:(1)2000—2020年,江苏北部地区耕地利用系统暴露度和敏感性在时间上呈增长态势,适应能力呈先降后升;暴露度在空间上由“整体偏低、零星较高”转为“中部高,东西低”,敏感性维持“西高东低”格局,适应能力由“北高南低”转变“西北—东南沿线高、沿线两侧低”。(2)耕地利用系统脆弱性呈“先升后降”趋势,空间上由“普遍偏低,零星偏高”转为“西高东低”,研究时段内存在区域脆弱性向周边县域辐射与溢出现象。(3)暴露度主要障碍因子由城镇化率转变为化肥施用强度和人口密度;敏感性主要障碍因子始终为耕地复种指数和耕地破碎度;适应能力主要障碍因子由粮食单产和交通可达性转为交通可达性、农业总产值和农业机械化水平。适应能力制约是脆弱性形成的主要制约模式。研究结论:尽管耕地利用系统脆弱性是暴露度、敏感性和适应能力共同作用的结果,但起决定性作用的是适应能力。“提质降脆”需强化耕地资源基底建设,协同降低暴露度与敏感性;加大耕地系统修复,推进基础要素建设;补齐耕地结构短板,巩固系统抵御机制。

江苏新沂城岗石墨矿地质特征及找矿标志

城岗石墨矿位于华北板块东南缘,处在郯庐断裂带之间。城岗石墨矿赋存于新太古代—古元古代城岗岩群中部,呈层状、似层状产出,矿体规模较大。矿石自然类型为片麻岩型石墨矿,矿石质量良好。矿床成因为区域变质型石墨矿,系含有机质的钙质碎屑岩及碳酸盐岩经后期区域变质作用形成。城岗石墨矿找矿标志较明显,与石墨矿化密切相关的岩性主要为含石墨透辉(或透闪)斜长片麻岩、透辉斜长片麻岩、大理岩等。

大运河苏北段非物质文化遗产数字化保护与传承现状——以宿迁市为例

数字化浪潮席卷全球,带动了全球产业的数字化转型。如何借力数字技术更好地实现非物质文化遗产的保护与传承成为学界热议的话题。为了更加深入地了解大运河苏北段非物质文化遗产数字化保护与传承现状,文章将研究对象聚焦于宿迁市,运用实地调研、人物访谈等方法,详细梳理了宿迁市非物质文化遗产数字化保护的现状。总体而言,大运河苏北段非物质文化遗产的数字化保护与传承尚处于起步阶段,存在工作机制不健全、专项保护资金缺乏、数字化传播手段单一等问题。

苏北平原区河流生态水位阈值计算方法适用性研究

针对平原区多数河流缺乏有效的流量资料的情况,研究适用于平原区河流生态水量阈值的计算方法具有重要现实意义。本文对比分析7Q10法、保证率法、湿周法、基于Tennant改进的生态水位法等4种代表性生态水量计算方法与结果,以水文节律、生态水位满足度为判别原则,评价了上述方法的适用性。分析结果显示:(1)在水文节律相应性方面,7Q10法、Q90法、湿周法计算的生态水位值为单一的特定值,无法反映水文节律的天然变化过程;(2)在生态满足度方面,7Q10法的多年平均生态水位的满足度最小;(3)基于Tennant法改进的生态水位法的水文节律模拟效果最好、生态水位满足度最高。研究表明:在选择的4种计算方法中,相较于7Q10法、Q90法及湿周法,基于Tennant法改进的生态水位法能较好地满足水文节律相应性和生态水位满足度原则,对平原区河流生态水位(阈值)计算具有一定的适用性。该研究成果可为苏北平原河网区流量资料缺乏型河流生态需水的确定和管理提供有益的参考。

苏北地区光伏设施地芋头生长发育特点研究

芋头是江苏省特色经济作物,在苏北地区种植规模逐渐扩大,但是在光伏芋头种植方面的研究仍未见报道。本试验在光伏板间空地种植绿芽芋,与常规露地种植芋头的生长发育、产品产量、成本效益及光温环境因素进行对比。结果显示,苏北地区光伏阵列板间可进行芋头种植,芋头出苗率较高,营养体长势较强,可明显提高单株子孙芋个数和单位产量,经济效益较好。因此,苏北地区发展光伏芋头产业具有较好的推广价值和应用前景。

抗日战争时期苏北根据地的财经措施

抗日战争时期,财政经济工作是苏北抗日根据地建设的重要内容,对坚持敌后抗战、巩固苏北抗日根据地以及在财经战场打击敌人等具有重要意义。苏北抗日根据地成立银行,发展根据地金融,促进经济发展、保证合理负担,活跃市场贸易、打破日伪经济封锁,开展货币斗争、维护根据地利益,为夺取抗战的胜利作出了重要贡献。

长期氮添加对苏北杨树人工林碳储量的影响

[目的]量化分析氮添加对南方杨树人工林碳储量分配格局的影响,为进一步提升我国杨树人工林在实现“双碳”战略目标中的作用,进而为我国“双碳”战略新时代背景下杨树人工林生产经营模式优化及技术集成提供理论支撑。[方法]基于东台林场杨树人工林长期氮添加样地,采用随机区组设置5个不同浓度氮处理:N_(0)〔0 g/(m^(2)·a)〕、N_(1)〔5 g/(m^(2)·a)〕、N_(2)〔10 g/(m^(2)·a)〕、N_(3)〔15 g/(m^(2)·a)〕、N_(4)〔30 g/(m^(2)·a)〕,研究长期氮添加对杨树人工林乔木层、土壤层、凋落物层、林下植被层碳储量的影响。[结果](1)与对照相比,杨树人工林乔木层碳储量在N_(3),N_(4)处理下显著增加,在N_(3)处理下最为显著,提高了21.6%;(2)各处理均显著提高了0—15 cm土层的土壤碳储量,但对30—45 cm土层的土壤碳储量没有显著影响;(3)N_(2),N_(3),N_(4)对凋落物层碳储量影响显著,N_(3)对其影响最强,提高了49.7%;各处理均降低了林下植被层碳储量,但差异不显著;(4)相关性分析结果表明:杨树人工林各层碳储量与土壤中TN,MBN,DON,DOC呈正相关,与pH,C/N呈负相关。[结论]在N_(3)处理下,即15 g/(m^(2)·a)对东台杨树人工林碳储量的影响最大,有利于其生态系统碳储量快速且稳定积累。

地方人才政策的迭代与嬗变——基于人才面向的盐城市人才政策发展研究

2015年以来,盐城市积极探索地方性人才政策,先后构建了515人才政策体系和黄海明珠人才政策体系。从发展历程来看,两个阶段盐城市人才政策都遵循“从制度到机制”的路径,建构了较为完整的政策体系。在政策适用对象的人才面向上,盐城市人才政策基本遵循3个梯度的理念。所不同的是,黄海明珠人才政策在人才具体类型上进行了一定的调整。在人才面向的政策激励工具方面,两个阶段盐城市人才政策基本以生活资助、住房保障、职业发展、宜居生活等4个维度展开。黄海明珠人才政策根据实际情况的变化对515人才政策中的激励工具进行了部分调整。当然,盐城市人才政策在迭代与嬗变的过程中,也有一些值得讨论和进一步优化可能的地方。

苏北废黄河三角洲地区浅表沉积物特征和指示意义

苏北废黄河三角洲是中国东部沿海研究海陆交互作用的重要区域,在该区域开展槽型钻和基坑剖面调查,同时采集泥炭层样品进行^(14)C测年,结果显示废黄河三角洲区域浅表主要分布以淤泥质黏土、黏土或砂黏互层的“千层饼”状沉积物为主的潮坪-潟湖-砂坝相沉积层,以及以细砂、粉砂等砂质为主的废黄河沉积层,其形成时间分别为5—7 ka B.P.(中全新世早—中期)及12—19世纪黄河夺淮期间。因此认为全球性气候变化是废黄河三角洲区域沉积环境演变的主导因素,中全新世早—中期全球性的气温升高和降雨增多造成入海沉积物的增加,形成了全区广泛分布的以潮坪、潟湖、砂坝等微地貌为主的海陆交互相沉积;12—19世纪黄河夺淮期间携带大量泥沙入海,与人类改造活动共同控制了废黄河三角洲现代地貌的形成。

张謇与新运河开凿计划

民国初期,张謇鉴于苏北水利废弛、经济萧条而导淮一时难以成功,提议于串场河以东开凿一条与之平行的串场大河,并辅以相应的闸坝河堤工程,藉以改善苏北的水利、交通状况,助力滨海垦殖开发,缓解苏北社会困境。为此,张謇主持制定了详细的工程计划,并予以积极推动。民国十年,该计划得到政府允准,更名为“新运河”。然而直至张謇去世,新运河工程除勘测外,未能实际展开。其原因除时局动荡外,一则在于苏北内部利益诉求的差异,一则在于政府不任其事,款项难筹。相较于前者,后者才是该计划夭折的主因。开挖新运河的倡议与实践,一方面彰显出张謇经世济民的立世准则和勇为人先的担当精神,另一方面也折射出民国时期实业家的处世困境。

共同富裕背景下经济强省脱贫地区常态化帮扶的财政政策研究——以江苏省为例

共同富裕是社会主义的本质要求,是中国式现代化的重要特征。江苏经济实力整体较强,但区域差距依然存在,苏北脱贫地区已经成为江苏协调区域均衡发展、实现共同富裕的明显短板。财政是国家治理的重要支柱,是巩固拓展脱贫攻坚成果和实施乡村振兴战略的重要基础,也是实现农村治理体系和治理能力现代化的物质保障。近年来,江苏通过各项财政帮扶政策支持苏北脱贫地区的发展,取得了显著成效,但同时也存在发展目标不明确、财政资金投入保障机制不完善、“造血”能力不足、资金使用效率有待提高等问题。对此,建议明确苏北脱贫地区发展目标、完善财政资金多元投入保障机制、增强脱贫地区和脱贫人口“造血”能力、提升财政资金管理水平和使用绩效。

文物视角下苏北汉画像石转型设计研究

以苏北汉画像石代表性文物为研究对象,应用文物比对分析、材料工艺分析和文献资料分析等方法提取石上设计元素,分析汉以后画像石造物的变革与发展方向,以史为鉴,探讨苏北汉画像石文创设计转型路径。设计转型从苏北汉画像石的保护、传承设计到基于文创产品开发的跨领域文化传播设计,再到革新视域、革新技术的意义突破式创新,多维度转型方式共同推动汉画像石的现代性活化。塑造文化新价值,为其他优秀传统文化的传承与创新提供有益借鉴。

相持阶段苏北抗日根据地群众动员工作考察

苏北抗日根据地是相持阶段新四军在长江以北地区实现发展的战略着力点,也是中国共产党在敌顽势力强大威胁下开展群众动员工作的实践场。苏北抗日根据地位于国民党统治的腹地,群众基础极为薄弱。为改变此种情况,中国共产党在根据地展开全方位的群众动员工作:通过建立民主化政权组织和归属性群众组织开展动员;积极开展减租减息和大生产运动满足人民利益诉求;始终坚持群众路线和调查研究团结群众;大力加强群众政治教育和政治宣传引领群众。在中国共产党的领导下,苏北抗日根据地的群众动员工作取得极大成功,极大调动了群众的参战积极性,使苏北抗日根据地成为新四军在长江以北敌后生存发展的重要战略基地。