危机孕育出的合作--析非传统安全对东亚地区合作的推动

非传统安全的特质决定了各国在该领域的关系不同于传统安全的"囚徒困境"模式,而是一种合作型的"保证博弈";从非传统安全对地区内国家合作的影响程度看,可分为危机型和危害型。东亚的非传统安全合作可分为两个阶段,亚洲金融风暴以及随后一系列危机的爆发促使该领域的合作在地区层面展开;通过对非传统安全因素促进地区合作的多层面分析,不难得出,非传统安全问题将在广泛领域推动东亚合作,而不仅仅局限在非传统安全领域。     

The strengthening East Asia summer monsoon since the early 1990s

Previous studies have documented a weakening tendency of the East Asian summer monsoon (EASM) since the end of the 1970s. In this study, we report that the EASM has been recovering since the early 1990s, although its strength is still less than in previous decades (averaged over the period 1965-1980). Following the recovery of the EASM, there has been a tendency in the last decade toward northward-moving rainbands and excessive rainfall in the Huaihe River valley (110°-120°E, 30°-35°N). There is evidence suggesting that the strengthening EASM since the early 1990s is linked to interdecadal change of land-sea thermal contrast.     

7～8世纪的中亚宗教与文化

7世纪中叶,中亚地区多种宗教并存,各宗教之间尽管存在着冲突,然大体上能够和平相处。8世纪初,伊斯兰教传入中亚,一部分居民改宗了伊斯兰教;然而,终倭玛亚王朝一代,伊斯兰教并未在中亚取得胜利。阿拉伯人的征服将阿拉伯文化带到中亚,直到倭玛亚王朝统治末期,阿拉伯文化并未在中亚产生重要影响。在共同抵抗阿拉伯人入侵的过程中,突厥文化开始与中亚本地文化融合,开启了中亚早期的突厥化。     

箕子与箕子的文化地位

箕子是中国第一个思想家,是儒学的先驱.他促进了古朝鲜地区的社会进步,因而是东亚文化圈的奠基者.我国第一首凭吊故国的抒情诗也是他所作.     

欧盟重返亚洲及近年来的欧中经济关系

两极格局时期，西欧国家出于自身战略安全的需要，一直把对外关系的重心放在欧美关系上，在亚洲实行“收缩”政策。冷战结束后，随着世界政治经济化、经济政治化的进一步发展，欧盟越来越认识到亚洲的重要性。欧盟出于自身政治经济和战略利益的需要，开始推行“重返亚洲”的战略，亚欧关系近年来得到了很大发展。但由于历史、文化、传统和社会制度等方面的差异，以及欧亚双方各自战略利益的不同，再加上美日的影响，不利于欧盟重返亚洲和欧亚加强合作的因素仍然存在。随着中国在世界政治经济中的影响日益骤增，中国在欧盟全球战略中的地位越来越重要。在双方的共同努力下，欧中经济关系有了长足的发展，但并不尽如人意，还存在着影响双方关系进一步发展的障碍。欧盟重返亚洲，亚欧加强合作，特别是欧中加强合作，是历史之必然趋势，它对世界格局和亚欧国家本身都会产生重大影响。     

亚洲安息香科植物地理分布研究

研究亚洲安息香植物的地理分布，探讨它的起源及散布，中国西南地区是该科的最早分化中心，而马来西亚及南美洲等地则是它的次生分化中心南岭山地可能是它现代的分布中心和保存中心     

东亚季风区气候和生态系统相互作用的诊断和模拟研究

大气圈和生物圈的相互作用是连接地球系统中生命世界和无生命世界的重要过程之一，也是地球环境变化中一个最基本的过程。通过卫星遥感植被和地表覆盖信息与气候要素关系的诊断分析以及生态和气候模式的数值模拟，揭示了东亚季风区气候和生态系统相互作用的基本特征，包括季节、年际和长期的季风气候变化对生态系统的影响和大范围植被覆盖状况的变化对季风气候的影响。结果表明，东亚季风区与气候与生态系统相互作用最为强烈的地区之一，这里陆地生态系统的时空变率表现出明显的对季风气候的响应特征；另一方面，人类活动引起的大范围植被覆盖状况的变化可以对季风气候产生显的反馈影响，它们是叠加在季风系统自然变率之上的一种重要变化。同时，虚拟试验表明，通过有序的人类活动，因地制宜，合理利用土地资源，保护和恢复自然植被，可以产生明显的气候和环境效应。     

东亚季风的活动规律及其与南亚季风的区别

讨论了东亚季风活动的一般特征、东亚季风的变异性及其原因探讨的途径、东亚季风和南亚季风的区别。     

A continuous 3000—year precipitation record of ENSO variability during LGM from a stalagmite in Nanjing

A glacial stalagmite chronology from Nanjing has been established by the TIMS-U series dating and annual band counting methods. The annually layering sequence spanning the 3000-year period from 18179 to 14900 calendar years before the present (aBP) was analyzed for evidence of East Asian summer monsoon precipitation variability during the Last Glacial Maximum (LGM). Power spectral analysis of the sequence shows a distinct interannual (2—7 years) band of enhanced variability suggestive of El Ni駉-Southern Oscillation (ENSO) teleconnections into East China during the LGM when climatic boundary conditions were different from those of today. The lower frequency bands (4—7 years) variability becomes weaker from 18179 to 14900 aBP, sup-porting the precession forcing model. The reappearance of the ENSO band in the coldest climatic boundary conditions during the Heinrich Event 1, however, suggests the stimula-tion of the enhanced East Asia winter monsoon to the El Ni駉 events.     

Interannual variability of Mascarene high and Australian high and their influences on summer rainfall over East Asia

Based on the reanalysis data from NCEP/NCAR and other observational data,interannual variability of Mascarene high(MH) and Australian high(AH) from 1970 to 1999 is examined.It is shown that interannual variability of MH is dominated by the Antarctic oscillation(AAO),when the circumpolar low in the high southern latitudes deepens,the intensity of MH will be intensified.On the other hand,AH is correlated by AAO as well as EI Nino and South Oscillation(ENSO),the intensity of AH will be intensified when EI Nino occurs.Both correlation analysis and case study demonstrate that summer rainfall over East Asia is closely related to MH and AH.When MH intensifies from boreal spring to summer (i.e.from austral autumn to winter),there is more rainfall over regions from the Yangtze River valley to Japan,in contrast,less rainfall is found over southern China and western Pacific to the east of Taiwan,and most of regions in mid-latitudes of East Asia.Compared with MH,the effect of AH on summer rainfall in East Asia is limited to localized regions,there is more rainfall over southern China with the intensification of AH.The results in this study show that AAO is a strong signal on interannual timescale,which plays an important role in summer rainfall over East Asia.This discovery is of real importance to revealingt the physical mechanism of interannual variability of East Asian summer monsoon and prediction of summer precipitation in China.