从清代台湾妈祖宫庙题匾看妈祖的助战功能     

刘福铸 《广东海洋大学学报》2009,29(5):20-25

明代以后,向妈祖宫庙献匾这一妈祖信仰形式渐趋流行。清代台湾妈祖宫庙题匾更是盛极一时,其中反映的妈祖助战功能,独具特色。清代前期反映的是帮助清廷统一和稳定台湾;中后期反映的是帮助台湾地方官府剿寇和平定民变;另外,还反映妈祖能帮助清军顺利渡海和抗击外国侵略者。了解妈祖助战功能可从另一个角度来审视海神妈祖的多元职司,加深对妈祖文化内涵及清廷褒扬妈祖原因的理解。  相似文献   

台湾海峡南部夏季的颗粒有机碳   总被引：5，自引：3，他引：2  

叶翔  李炎  黄邦钦  陈坚 《海洋学报》2009,31(6):87-99

根据2004年夏季、2005年夏季和2006年夏季3个航次观测的颗粒有机碳(POC)数据,表层POC含量的分布表现出近岸高、远岸低的特点,表层和次表层POC含量的高值区出现在东山以东以及南澳附近上升流区。沿岸流较强的2005年和2006年航次具有相对丰富的总悬浮颗粒物(TSM)含量。浮游植物是该区POC的主要来源。各航次的POC含量与叶绿素a(Chl a)含量正相关,所有航次统计的Chl a/POC与Chl a呈正相关,上升流区Chl a/POC偏小,上升流较强的航次高Chl a区的Chl a/POC也偏小,反映了上升流与高营养转换效率浮游生物生态在空间和时间上的联系。根据Chl a/POC~Chl a关系图判断,台湾海峡南部海域1988年、1998年和2004年夏季航次的浮游生物营养转换效率受到相对抑制,而在上升流信号较强的2005年和2006年夏季航次,上升流区的浮游生物高营养转换效率状态得以强化。各航次的POC含量和Chl a/POC比值与TSM含量正相关,POC/TSM比值与TSM负相关,沿岸流带来的陆源悬浮颗粒物通量波动,并没明显干扰台湾海峡南部以海洋浮游生物生态主导的颗粒有机碳生物地球化学循环格局。  相似文献   

Factors influencing participation of ‘top-down but voluntary’ fishery management—Empirical evidence from Taiwan     

Chung-Ling Chen 《Marine Policy》2010

Taiwan has recently implemented a system of voluntary suspension of fishing activities as a means to reduce fishing efforts in offshore fisheries. This system is a top-down management approach but fishers voluntarily participate. Given the economic incentive offered, this system has not convinced a great number of fishers to participate. An understanding of what constitutes the underlying causes leading to fishers’ participation and non-participation provides fisheries managers with the opportunity to refine policy design and delivery. This paper aims to identify factors that may have potential to either promote or hinder fishers’ participation, and investigate the association between factors and fishers’ intention to participate using a logit regression model. The factors were classified into three categories: motive, constraint and fishers’ attitude toward resource use and management. A structured questionnaire including factors to collect empirical data from fishers was applied. The incentives in the form of reward did not seem sufficiently strong to draw fishers’ participation. However, fisher's positive view toward resource use and management enhanced intention to participate. This knowledge points out the importance of internalized resource stewardship among fishers in fishery management and can assist in developing fisheries management strategies aimed at enhancing fishers’ voluntary participation.  相似文献   

台湾海峡南部水螅水母纲两新种形态特征     

黄加祺  许振祖  郭东晖 《台湾海峡》2010,29(1):1-4

2005年7月在台湾海峡南部发现花水母亚纲（Anthomedusae Haeckel,1879）筒螅水母科（Tubulariidae Fleming,1828）刺泳水母属（Plotocnide Wagner,1885）1个新种——台湾刺泳水母（Plotocnixie taiwanensissp．nov．）和软水母亚纲（Leptomedusae Haeckel,1866）和平水母科（EirenidaeHaeckel,1879）伊能水母属（Irenium Haeckel,1879）1个新种——多手伊能水母（Irenium polynenumsp．nov．）．  相似文献   

台湾浅滩大型沙波、潮流结构和推移质输运特征   总被引：12，自引：5，他引：7  

杜晓琴  李炎  高抒 《海洋学报》2008,30(5):124-136

对2006年8月所获台湾浅滩的底质、水深、多层位流速、流向以及CTD观测数据进行了分析,探讨了台湾浅滩大型沙波区水流的时空分布特征、沉积物输运过程及影响因素,结果表明,台湾浅滩动力作用较强,底质为粗砂,其上发育的沙波波长为325~822 m,波高为14.4~20.3 m,较接近由前人总结的沙波波高、波长的关系式计算出的波高和波长。沙波波峰、波谷、迎水面和背水面流速以12.5 h为周期沿顺时针方向旋转;底部最大流速出现在半日潮周期的同一时段,对应的方向均为偏南方向,且沙波迎水面的流速大于背水面的。在两个半日潮过程中研究区域的沉积物输入量大于输出量,处于淤积状态。在潮流作用下沉积物输运量较少,沙波脊线移动较小,而台湾浅滩有较大规模的沙波运动,故认为改造沙波的主要作用力应该是风暴流。在观测的断面中涨潮推移质输运量大于落潮的,且第一个半日潮涨落潮的输运能力均较第二个半日潮的大,这可能与潮流的流速-时间不对称特征及潮能变化形式有关。  相似文献   

Study on the Tidal Wave System and Formation Mechanism of M2 Tide in the Taiwan Strait     

章卫胜  宋志尧  张金善  张红贵  孔俊  王艳红 《中国海洋工程》2008,22(1):57-70

To study the Taiwan Strait （TS）, an unusual sea area, the numerical model in marginal seas of China is used to simulate and analyze the tidal wave motion in the strait. The numerical modeling experiments reproduce the amphidromic system of the M2 tide in the south end of the Taiwan strait, and consequently confirm the existence of the degenerate amphidromic system. On this basis, further discussion is conducted on the M2 system and its formation mechanism. It can be concluded that the tidal waves of the TS is consisted of the progressing wave from the north entrance and the degenerate amphidromic system from the south entrance, in which the progressing wave from the north entrance dominates the tidal wave motion in the strait. Except for the convergent effect caused by the landform and boundary, the degenerate amphidromic system produced in the south of the strait is another important factor for the following phenomena： the large tidal range in the middle of the strait, the concentrative zone of co-amplitude and co-phase line in the south of the strait. The degenerate amphidromic system is mainly produced by the incident Pacific Ocean tidal wave from the Luzon strait and the action by the shoreline and landform. The position of the amphidromic point is compelled to move toward southwest until degenerating by the powerful progressing wave from the north entrance.  相似文献   

台湾海峡南部上升流区亮氨酸氨肽酶活性的初步研究   总被引：1，自引：0，他引：1  

谷体华  王丹  林丽贞  黄邦钦 《海洋科学》2008,32(12)

2006年夏季,在台湾海峡南部上升流区调查了亮氨酸氨肽酶活性（LAPA）的分布,跟踪分析了上升流过程中该酶活性的变动规律,探讨了环境因子对该海区LAPA的影响及水华过程中亮氨酸氨肽酶的应对机制。结果表明,台湾海峡南部近岸区的IAPA明显高于浅滩区和陆架边缘区,推测溶解有机氮（DON）是影响LAPA的主要因素。上升流过程中,LAPA呈现递增趋势（尤其是表层）,在垂直方向上的分布总体表现为表层〉10m〉15m以深,随着水华的发展,LAPA逐渐升高,浮游植物水华后期产生的大量DON,可诱导亮氨酸氨肽酶表达至最大值。  相似文献   

闽浙沿岸海域春季溶解态稀土元素的分布和来源     

李换新  何会军  张劲 《中国海洋大学学报(自然科学版)》2021,51(3)

通过2017年5月闽浙沿岸附近海域航次的温度、盐度和溶解态稀土元素(Rare Earth Elements,REEs)的实测数据,对该海域溶解态REEs的分布、配分模式以及主要影响原因进行了分析。结果表明:研究区域,盐度随着采样站位离岸距离的增加而增大。溶解态REEs则呈现近岸高而远岸低的分布特点。造成这种分布状况的原因:一是近岸陆源河流的输入导致近岸盐度低,REEs浓度高;二是受到高温高盐水(台湾暖流水和黑潮次表层水)的入侵,造成远岸盐度高而溶解态REEs元素浓度低。不同站位的溶解态REEs的配分模式有明显区别。近岸低盐站位由北向南,重稀土元素富集程度逐渐增大,反映了陆源不同河流的输入。通过溶解态REEs的配分模式发现,远岸高盐站位会受到台湾暖流和黑潮次表层水的共同影响。  相似文献   

皖南歙县井潭组的年代学、地球化学特征及地质意义     

李利阳  韩瑶  张传恒 《地质论评》2024,70(S1):191-192

  相似文献   

Coupled garnet Lu–Hf and monazite U–Pb geochronology constrain early convergent margin dynamics in the Ross orogen,Antarctica          下载免费PDF全文

G. Hagen‐Peter  J. M. Cottle  M. Smit  A. F. Cooper 《Journal of Metamorphic Geology》2016,34(4):293-319

The Ross orogen of Antarctica is an extensive (>3000 km‐long) belt of deformed and metamorphosed sedimentary rocks and granitoid batholiths, which formed during convergence and subduction of palaeo‐Pacific lithosphere beneath East Gondwana in the Neoproterozoic–early Palaeozoic. Despite its prominent role in Gondwanan convergent tectonics, and a well‐established magmatic record, relatively little is known about the metamorphic rocks in the Ross orogen. A combination of garnet Lu–Hf and monazite U–Pb (measured by laser‐ablation split‐stream ICP‐MS) geochronology reveals a protracted metamorphic history of metapelites and garnet amphibolites from a major segment of the orogen. Additionally, direct dating of a common rock‐forming mineral (garnet) and accessory mineral (monazite) allows us to test assumptions that are commonly used when linking accessory mineral geochronology to rock‐forming mineral reactions. Petrography, mineral zoning, thermobarometry and pseudosection modelling reveal a Barrovian‐style prograde path, reaching temperatures of ~610–680 °C. Despite near‐complete diffusional resetting of garnet major element zoning, the garnet retains strong rare earth element zoning and preserves Lu–Hf dates that range from c. 616–572 Ma. Conversely, monazite in the rocks was extensively recrystallized, with concordant dates that span from c. 610–500 Ma, and retain only vestigial cores. Monazite cores yield dates that overlap with the garnet Lu–Hf dates and typically have low‐Y and heavy rare earth element (HREE) concentrations, corroborating interpretations of low‐Y and low‐HREE monazite domains as records of synchronous garnet growth. However, ratios of REE concentrations in garnet and monazite do not consistently match previously reported partition coefficients for the REE between these two minerals. High‐Y monazite inclusions within pristine, crack‐free garnet yield U–Pb dates significantly younger than the Lu–Hf dates for the same samples, indicating recrystallization of monazite within garnet. The recrystallization of high‐Y and high‐HREE monazite domains over >50 Ma likely records either punctuated thermal pulses or prolonged residence at relatively high temperatures (up to ~610–680 °C) driving monazite recrystallization. One c. 616 Ma garnet Lu–Hf date and several c. 610–600 Ma monazite U–Pb dates are tentatively interpreted as records of the onset of tectonism metamorphism in the Ross orogeny, with a more robust constraint from the other Lu–Hf dates (c. 588–572 Ma) and numerous c. 590–570 Ma monazite U–Pb dates. The data are consistent with a tectonic model that involves shortening and thickening prior to widespread magmatism in the vicinity of the study area. The early tectonic history of the Ross orogen, recorded in metamorphic rocks, was broadly synchronous with Gondwana‐wide collisional Pan‐African orogenies.  相似文献