Formation of the Zengmu and Beikang Basins,and West Baram Line in the southwestern South China Sea margin

The Zengmu and Beikang basins,separated by the West Baram Line(WBL)in the southwestern South China Sea margin,display distinct geological and geophysical features.However,the nature of the basins and the WBL are debated.Here we explore this issue by conducting the stratigraphic and structural interpretation,faults and subsidence analysis,and lithospheric finite extension modelling using seismic data.Results show that the WBL is a trans-extensional fault zone comprising normal faults and flower structures mainly active in the Late Eocene to Early Miocene.The Zengmu Basin,to the southwest of the WBL,shows an overall synformal geometry,thick folded strata in the Late Eocene to Late Miocene(40.4-5.2 Ma),and pretty small normal faults at the basin edge,which imply that the Zengmu Basin is a foreland basin under the Luconia and Borneo collision in the Sarawak since the Eocene.Furthermore,the basin exhibits two stages of subsidence(fast in 40.4-30 Ma and slow in 30-0 Ma);but the amount of observed subsidence and heat flow are both greater than that predicted by crustal thinning.The Beikang Basin,to the NE of the WBL,consists of the syn-rift faulted sub-basins(45-16.4 Ma)and the post-rift less deformed sequences(16.4-0 Ma).The heat flow(~60 mW/m2)is also consistent with that predicted based on crustal thinning,inferring that it is a rifted basin.However,the basin shows three stages of subsidence(fast in 45-30 Ma,uplift in 30-16.4 Ma,and fast in 16.4-0 Ma).In the uplift stage,the strata were partly folded in the Late Oligocene and partly eroded in the Early Miocene,which is probably caused by the flexural bulging in response to the paleo-South China Sea subduction and the subsequent Dangerous Grounds and Borneo collision in the Sabah to the east of the WBL.

Social and Economic Bene-fits of the West-East Gas Pipeline Project

On July 4 2002, a project attracting world attention, i.e., the West-East Gas Pipeline Project was declared in full-scale commencement. The project will write history with its enormous social and economic benefits.

Study on the Delineation of Ecological Protection Red Line in Ecological Fragile Region of the West

Ecological protection red line is one of the main contents in system construction of ecological civilization in China, and also reflects the trend and the will of the national eco-environment protection system reform. In this paper, taking ecological fragile area of the west as the research object, and using literature analysis, comparative analysis and other methods, the characteristics in ecological fragile area of the west are compre-hensively elaborated, and the relationship between ecological vulnerability and ecological protection red line is clarified, and the delineation theory and methods of ecological protection red line are analyzed, such as ecological suitability analysis, regional ecological security pattern and DPSIR model. Finally, key issues of ecological protection red line delineation in ecological fragile zone of the west are proposed.

Managing the Lower Mississippi River Landscape for Strategic Navigational and Flood Control

The Lower Mississippi River flows from the confluence of the Ohio River and Mississippi River at Cairo, Illinois into the Gulf of Mexico. Mississippi River and Ohio River pathway shifts have shaped and re-shaped the landscapes through which they flow and where their sediment-laden tributary waters co-mingle at the confluence on the voyage to the Gulf of Mexico. For much of their history, the lands adjacent to the Lower Mississippi River were bottomlands that flooded with the seasons unconstrained by human river training structures. Since 1717 European nations have fought over strategic navigational control of the Mississippi River. After the Louisiana Purchase in 1803, the United States took controlled the Lower Mississippi River. During the Civil War, from 1861-1865, the Union and Confederate forces battled for navigational control of the Lower Mississippi River. The primary objective of this paper was to highlight how the strategic navigational and flooding control of the Lower Mississippi River and geological and landscape resources were responsible for the successful economic development of this rich historical region of North America.

“东西成垄,一垄一行,弓背朝南”栽培对草莓生长与品质的影响

为了确定东西垄单行栽植模式在草莓生产中应用的可能性,以草莓品种‘雪里香’和‘雪沁香’为试材,研究了东西垄单行和南北垄双行两种栽培模式对草莓植株表型、光合特性、果实品质及产量的影响。结果表明:东西垄单行栽植叶面积、根系活力、根直径显著优于南北垄双行栽植,而株高和叶柄长则相反;叶绿素含量、光合速率、蒸腾速率、气孔导度、二氧化碳(CO_(2))浓度均在不同程度上高于南北垄双行栽植,且表现稳定;东西垄单行栽植显著提升了草莓果实可溶性糖、可溶性固形物及可溶性蛋白的含量,并在一定程度上降低了可滴定酸含量。综合来看,东西垄单行栽植显著促进了草莓植株生长,提高了产量和品质。

中国西电东送40年发展成效与政策建议

西电东送是国家西部大开发的标志性工程,是促进区域协调发展、实现电力资源优化配置的重要举措。经过40年发展,中国西电东送已形成“北、中、南”3个通道输电格局,外送能力持续提升,发展成效十分显著。全面总结了西电东送在保障电力供应、推动低碳转型、带动产业升级、促进经济发展等方面取得的突出成效,系统性分析了西电东送持续推进中面临的多重挑战,并从通道规划、电源协同、运行安全、市场机制等方面提出了对策建议,推动西电东送高质量发展。

近代中东路西线畜牧区中心城镇地位的演变

近代,在中东铁路西线的畜牧区以海拉尔、满洲里及札兰诺尔三站为中心形成了三个较大城镇。受历史基础、资源条件、地理位置等因素影响,它们的职能及在区域城镇体系中的地位不尽相同。海拉尔由清代仅具单一军政职能的城镇发展成为兼具军政、经济综合职能的区域中心城镇。但由于海拉尔与满洲里经济发展的同质化使两城之间形成较为明显的竞争关系,因此在区域社会政治环境变动等因素的影响下,海拉尔俄蒙贸易中心的地位一度转移到了满洲里。海拉尔凭借其清代前期已经形成的区域军政中心地位、距离昂吉庙集市较近,以及中东路通车后形成的畜产加工中心、汽车交通中心等优势,于1920年之后重获区域俄蒙贸易中心的地位,满洲里则仍为区域的次级经济中心。札兰诺尔属于因煤炭而兴的资源型城镇,其地位不可与海拉尔、满洲里同日而语。

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。

李林精神及其时代价值探析

李林精神是抗日战争时期形成的以爱国主义为核心的民族精神,是中国共产党人精神谱系的重要组成部分,其内涵体现为祖国至上的爱国情怀、对党忠诚的高度觉悟、舍身为民的民族气节、敢于担当的责任意识。新时代新征程,进一步传承与弘扬李林精神,有助于丰富和培育以爱国主义为核心的民族精神,为中国共产党人筑牢理想信念提供范本,为党员干部永葆政治本色树立标杆,为人民群众勇担历史使命注入动力。

Genetic Analysis of a Heavy Rainstorm on June 29,2006 in Henan Province

Based on conventional radiosonde data, surface encrypted observation data and so forth, the diagnostic analysis of a heavy rainstorm in the central and east of Henan Province on June 29, 2006 was carried out from the aspects of its large-scale background, environmental field and physical characteristics. The results showed that under the effect of a favorable large-scale environmental field, the rainstorm was caused by a mesoscale system. The high-east and low-west circulation pattern, the eastward movement of high-level low trough, low-level shear lines and strengthening of low-level jet streams directly resulted in the occurrence of the heavy rainstorm.

全面抗战时期毛泽东群众路线思想的实践与现实启示

毛泽东群众路线思想是毛泽东思想的重要组成部分,这一思想在土地革命战争后期到抗日战争时期逐渐走向成熟,这一思想的主要内容被凝练为“一切为了群众,一切依靠群众,从群众中来,到群众中去”。以毛泽东同志为主要代表的中国共产党人在全面抗战时期把群众路线思想广泛运用在经济、政治、文化各领域,带领群众实行减租减息政策和开展大生产运动;实行“三三制”原则,开展整风运动;推动文化与抗日群众相结合,取得了抗日战争的全面胜利。全面抗战时期毛泽东群众路线思想及成功运用也为新时代探索群众路线新的实践方式,满足新的群众利益在思想和实践上提供了宝贵的经验和启示。

构建黄河大水网 促进黄河流域生态保护和高质量发展

鉴于黄河流域生态保护和高质量发展面临的很多重大问题都与水资源短缺息息相关,从洪水威胁依然是流域最大威胁、流域生态环境脆弱、水资源保障形势严峻、流域发展质量有待提高等方面分析了黄河流域生态保护和高质量发展面临的重大问题,探讨了这些重大问题可能产生的深刻影响,论述了这些重大问题与水资源短缺之间的内在关系,分析了黄河流域水资源短缺现状及节水潜力有限的现状,指出构建黄河大水网是治本之策,并从“纲、目、结”三方面论述了构建黄河大水网的具体路径。

穴位埋线配合药物治疗West综合征疗效观察

目的:观察穴位埋线配合常规药物治疗West综合征的疗效。方法:将61例West综合征患儿随机分为治疗组31例及对照组30例。治疗组采用筋缩、命门、足三里穴位埋线加常规抗痫药物治疗,对照组采用常规抗痫药物治疗。两组均15天为一疗程,共治疗6个疗程。结果:治疗组总有效率90.32%,对照组总有效率66.67%,经2χ检验两组差异有显著性意义(P<0.05)。结论:穴位埋线加常规药物治疗West综合征疗效显著。

从英国档案看1942年英美关于印新驿运路线的讨论

印新线作为清朝末年中国新疆与英属印度贸易的主要交通线路,在抗日战争急需输入外援物资的特殊时期,国民政府重启该线路,采取古老的驿运方式进行运输。本文以英国档案资料为基础,梳理1942年中英美三国在开辟印新线之前的利益权衡考量过程,有助于加深对战时交通运输体系和开辟印新线的理解和认识。

西北联大汉中分立院校战后教育复员考述——基于民国时期报刊的考察与分析

抗战胜利,高等教育复员是中国高等教育发展历程的重要一环。依据多年来收集整理的“西北联大”专题性第一手民国报刊(以报为主)材料,运用报刊文献调查法,对西北联大汉中办学的分立院校战后复员的历史渊源、过程等予以关注,结合相关文献进行系统考察、梳理、分析和研究,旨在揭示这一过程的历史事实与规律,并呈现这一过程中的诸多历史细节,对西北联大分离发展、战后复员及汉中社会区域研究等重要问题予以探讨。

西门外 上海近代城市形态中的街-衖复合结构

街道和巷衖不仅是城市交通设施,也意味着空间骨架,以及运用路政来系统性改变空间状态的城市化手段。研究始于对传统上海县城老西门外丰富的近代城市化空间现象的关注,目标在于解析片区街衖体系的整体构成、演进及历史意义。文章以城市街坊为分析单元,在与其关联的多尺度层级上,基于市政当局与地主、人地关系及人际关系之间的三种互动,察悉内部交通空间生成的微观历史;进而从竖向形态、权属形态、历史形态的总结分析中,提炼出三层—六级的体系构成。最后,从街-衖复合结构这一形态学视角,探讨了对应的上海近代城市化特征。

MOVEMENT OF THE RIDGE LINE OF SUMMER WEST PACIFIC SUBTROPICAL HIGH AND ITS POSSIBLE MECHANISM

The analysis of the 40-year averaged daily data in this paper suggests that the vertical structure and movement of subtropical high (SH) ridge in summer evidently differ in different areas,which is close related with spatially nonuniform heating.The SH ridge over the West Pacific tilts northwards with height,while one over the Central Pacific tilts southwards.The northward movements of the Central/West Pacific SH ridges both show distinct low frequency oscillations of 10-20 days,and the movement over the East Asian monsoon area shows obvious oscillations of quasi-40-days as well.The analysis shows that the solar radiation drives the seasonal meridional movement of SH,while the spatially nonuniform heating modifies its movement speed and intensity,thus resulting in its anomalous motion.

团九二期输水隧洞近距离下穿北京西郊线技术方案研究

随着市政基础设施建设和城市轨道交通的快速发展,新建隧洞与既有轨道交通线之间的交叉穿越愈发常见。新建工程穿越或并行既有轨道交叉施工,设计施工稍有不慎,不仅影响新建工程安全,还会引起既有轨道交通结构变形进而威胁运行安全。以团九二期输水隧洞施工一标盾构近距离穿越北京有轨电车西郊线为例,该段盾构施工区间土质疏松,地层结构复杂;输水隧洞与西郊线的位置关系由并行靠近到斜向下穿,盾构施工对西郊线的结构变形、运行安全都存在较大的影响。若变形超限,则可能引发车辆倾覆、线路停运等重大安全事故。因此,有必要通过采取一套有效的技术措施和监控手段,使盾构施工能够安全通过该区间段。采用地面复合锚杆隔离桩、盾构机同步注浆、克泥效减阻、洞内二次深孔注浆、地面实时监控量测等多种措施相结合的技术方案,并利用ANSYS有限元分析软件进行施工模拟分析计算,对设计方案和施工措施开展综合分析研究。模拟分析结果表明,采用选定的保护方案,盾构施工期间西郊线轨道的最大竖向位移为2.902 mm,最大横向位移为1.254 mm。通过施工过程中的实际监控量测结果可知,盾构施工期间西郊线轨道的实际最大竖向位移为1.5 mm,最大横向位移为0.2 mm,满足变形控制标准。该设计方案易于实施,投资较省,变形控制效果好,对类似工程具有参考意义。

文化冷战与文学热:三线建设中的文艺备战研究

三线建设中的文艺活动与我国现代化进程中的政治、经济、社会存在着多重互动关系。在国际冷战背景下,战争意义上的“冷”与文艺实践上的“热”围绕着三线建设的全方位备战活动形成了有别于文革文艺的三线建设文艺热潮。在文学热中,三线建设文艺参与了三线单位社会中的社会治理,抒发了集体生活中三线人的政治情感,凝聚了三线精神,体现了重要的共产主义人文价值。三线建设文艺从20世纪六七十年代的备战,到八九十年代在改革开放后的多元语境下通过主旋律叙事参与文化竞争并抵制文化霸权,再到新时代成为弘扬中国精神、讲好中国故事的重要组成部分。以军工文艺为起点的三线建设文艺见证了马克思主义政党以人民为中心的文化强军和文化强国之路,是中国特色社会主义文艺在民族复兴道路上赓续革命文艺战斗性和先锋性的重要历史经验。

中美苏三角视域下尼克松“缓和战略”探析

二十世纪七十年代美国出台“缓和战略”的背景是西欧、日本经济的恢复、发展,美国因陷入越南战争的泥潭带来了严重的危机,中苏关系破裂。遵循“缓和战略”,美国一定程度上淡化了意识形态领域的争霸,转而从现实的国情和利益出发追求国家利益和战略转变。在此过程中,美国通过与中国关系的正常化加强了自身地位,同时采取“联系原则”改善同苏联的关系。随后尼克松突破巴黎统筹委员会的管制,推动了东西方贸易发展。“缓和战略”不仅对美国产生了影响,更对苏联解体和中国改革开放起到了微妙的作用。