查询词典 foraminiferal

In addition, planktonic foraminiferal species of P. obliquiloculata shows a good relation with the oxygen isotope record and acts as a paleoceanographic indicator even during the last glacial in the Okinawa Trough.

此外，浮游有孔虫Pulleniatina obliquiloculata与氧同位素记录有很好的对应关系，表明它是冲绳海槽末次冰期以来的一个可靠的海洋环境指标。

The study focus on the distribution patterns of modern and fossil benthic foraminiferal fauna and their relationship with environmental variables, and the physical and chemical properties of the deep water.

本项目以西太平洋边缘中、深层水体为对象，利用微体古生物学、生物地球化学和年代学方法，通过对现代底栖有孔虫分布特征及其环境控制因子、柱状岩芯中底栖有孔虫属种和形态类型的分布特征、底层水体的温度及营养水平、各主要古环境演化事件时期浮游和底栖有孔虫14C年代学特征等主要内容的研究，综合探索了晚第四纪以来西太平洋边缘中层和深层水体的性质和流通状况的演化史。

In the past several decades,great achievements have been made by the marine foraminiferal boron isotope researches on the following aspects:analytical techniques,offsets between laboratories,isotopic fractionation factor,long-term changes in.

海洋浮游有孔虫中的硼同位素能够反映海水酸碱度的变化，从而为重建大气二氧化碳浓度的变化提供了一种新的手段，有望提供目前极地冰心记录所无法企及的百万年甚至千万年时间尺度上的大气二氧化碳浓度的变化。

Also, the study provides spatial and temporal information on the distribution patterns and compositional characteristics of modern and fossil benthic foraminiferal fauna, and their relation to the environmental variables.

发现冲绳海槽中南部冰期-冰消期的底层水流通状况较冰后期弱，说明冰期时西北太平洋中深层水的演化没有对该海区底层水团的性质产生影响。

In the marine carbonate system, with the seawater pH from the foraminiferal 11B, one has to make an assumption on the other variable to obtain the rest four variables. A series studies found that U/Ca and B/Ca are potential proxies for seawater [CO32-]and [HCO3-], respectively.

在同一个有孔虫样品上进行硼同位素与微量元素的研究，还有一个重要的意义就是它可以不用借助其它参数的假设，就能重建海洋碳酸盐系统和大气二氧化碳浓度变化。

Leading the heaviest foraminiferal δ18O by 100 ka, the carbonate dissolution event started earlier than formation of the Antarctic ice sheet.

由于碳酸钙泵的作用，碳酸盐的溶解会消耗大量的大气CO2，从而可能驱动了气候的快速变冷，导致南极大陆永久性冰盖发育。

The most important postmortem processes include transport, test size sorting, mechanical breakage and erosion, test dissolution and so on. The author put forward two new concepts: foraminiferal test"breakage index" and"dissolution index" to quantitatively describe the postmortem processes, and applied them to the observation and experiment on test breakage and dissolution.

壳体的搬运作用、机械破坏作用和化学溶解作用是重要的死态过程，为定量描述这些作用本文提出&有孔虫壳体磨蚀度指数&&有孔虫壳体溶蚀度指数&等新概念，并进行了磨蚀度的统计和溶解作用的实验。

Based on the high-resolution analysis of planktonic foraminiferal isotope and organic carbon of 91 sediment samples from two box cores located respectively in the southern and northern slopes of the South China Sea, the changes of sea surface temperature and paleoproductiviy of the past 2400 years were reconstructed. The sea surface temperature and the depth of thermocline varied in different stages during the late Holocene, with some short-term climate events such as the Little Ice Age.

对南海南、北陆坡两个箱式柱状样中91个沉积物样品进行了高分辨率的稳定同位素和有机碳分析，获得最近2400年以来上部海水温度和表层古生产力的记录，发现晚全新世南海的表层海水温度和温跃层呈现阶段性变化，且有小冰期等短期气候事件。

An accurate timescale derived from benthic foraminiferal δ^18O is crucial to paleoceanographic studies. In global oceans, there are few continuous δ^18O records for the benthic foraminifers which span the past 5 Ma and have time resolution better than 5 ka.

基于底栖有孔虫δ^18O的精确的年代标尺是古海洋学研究的基础，特别是长度超过5Ma，分辨率小于5ka的连续δ^18O记录在全球大洋深海记录中更是凤毛麟角。

In the past several decades, great achievements have been made by the marine foraminiferal boron isotope researches on the following aspects: analytical techniques, offsets between laboratories, isotopic fractionation factor, long-term changes in seawater boron isotopic compositions and vital effects.

最近，海洋浮游有孔虫硼同位素的研究在实验分析技术、实验室偏差、同位素分馏系数、海水硼同位素长期变化以及各种次要因素等方面都取得了长足的进步，尤其是全蒸发负热电离质谱法的建立使硼同位素分析的样品需求量降到纳克级以下。

Cynanchum Lingtai apricot production in the average weight 65 grams, the brightly-colored fruit, juicy rich, sweet-sour taste, sweet from the nucleolus, when the late Qing Dynasty famous Shaanxi, Gansu provinces, the Qing imperial court Tongzhi tribute for years.

灵台生产的牛心杏平均单果重65克，果实色泽鲜艳，汁多味浓，甜酸适口，离核仁甜，清末时就驰名陕、甘两省，清同治年间曾为朝廷贡品。

Chenopodium album,Solanum nigrum, and Amaranthus retroflexus were very susceptible to the herbicides. Polygonum persicaria and Abutilon theophrasti were relatively less susceptible to the herbicides, and Lycopersicon esculentum was not susceptible to it. The relationship between reduction rates of weed biomass and PPM values of weed leaves 2,4, and 6 days after treatment was established.

供试的6种杂草对该混剂的敏感性存在显著差异：红心藜Chenopodium album、龙葵Solanum nigrum和反枝苋Amaranthus retroflexus对该混剂最敏感，ED90值分别为47.65、71.67和29.17g/hm2；春蓼Polygonum persicaria和苘麻Abutilon theophrasti敏感，ED90值分别为96.91、114.20g/hm2；而番茄不敏感。