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- Water content (WC) and loss on ignition (LOI) in surface sediments were 72.12%, 12.38%, respectively. 底泥中的含水率和烧失量平均为72.;12%25和12
- Radiolarian distribution in surface sediments of the northern and central South China Sea. 2002.;南海南部晚中新世的放射虫及其环境探讨。
- The paper studies the abundance of 31 elements (or oxides) in 29 surface sediments from Changjiang Estuary and its adjacent sea area. 本文对调查中所采集29个表层沉积物中的31个元素(或氧化物)的含量进行了分析。
- The content levels of OCPs tended to be DDTs>HCHs, and characterized by higher concentration levels in SPMs and lower in surface sediments. 研究表明;OCPs的含量水平有DDTs>HCHs的趋势; 悬浮物中污染物浓度高于表层沉积物.
- Total number 2472, 36 genera and 45 species are distinguished after the radiolaria fossils from 12 surface sediments in the Bering Sea are analysed. 通过对白令海 1 2个表层沉积物中微体生物化石放射虫的分析 ,共鉴别放射虫 2 4 72枚 ,计36属、45种。
- The results indicate that the distribution of gross amount of REE in surface sediments well corresponds to that of the sediment types. 结果表明,表层沉积物中稀土元素总量的分布与沉积物类型有良好的对应性。
- DDTs contents in the surface sediment samples taken from 12 reservoirs and 2 lakes were measured by GC-ECD. 2004年秋季采集了河北12个水库和2个湖泊的表层沉积物样品;利用GC-ECD测定DDTs农药的含量;在此基础上分析了其残留与组成特征以及生态风险.
- The analysis of their surface sediments showes that the depositional features of the sediments are controlled by the energy conditions and material sources. 通过上述分析,提出了清澜港的潮汐通道及其邻近海域不会发生过量陆源碎屑堆积,原因在于本区沉积物的搬运、沉积和改造作用趋于保持动态平衡的认识。
- The distributions and functions of various forms of nitrogen in the biogeochemical cycling in the southern Yellow Sea surface sediments were investigated. 本文报道了南黄海表层沉积物中不同形态氮的区域分布特征及其在生物地球化学循环中的作用。
- Investigation on microelement in surface sediment in Sansha Bay was conducted,too. 此外,本项目较全面地对三沙湾表层沉积物的微量元素进行了调查研究。
- In addition, it shown that nitrification might be an important factor to control the distribution of inorganic nitrogen in surface sediments in the tidal flat ecosystem. 沉积物中可交换态无机氮含量变化特征显示,在盐度变化剧烈的潮滩生态系统内,硝化作用可能是控制沉积物(尤其是表层沉积物)中无机氮分布的重要因素。
- The analyses on the phosphorus forms and their bio-availabilities in tide-beach surface sediments of Hangzhou Bay showed that the content of total phosphorus (TP) ranged in 595. 对杭州湾潮滩表层沉积物样品中的磷进行了总量、形态分级提取及生物有效性分析。
- The results indicate that the surface sediments are mostly derived from the Yellow River and can be divided into three types including clayey silt, sandy silt and silty sand. 结果表明,本区表层沉积物主要来源于现代黄河物质,底质类型主要有黏土质粉砂、砂质粉砂和粉砂质砂3种类型,其中黏土质粉砂约占该区沉积物分布面积的60%25以上,呈“Y”,形由西北向东南展布。
- Having analyzed the samples of surface sediment from 46 sites around Xiamen Island, 217 species or subspecies in 62 genuses of diatoms were found. 对厦门岛沿岸46个取样点表层沉积样品分析,共发现硅藻62个属的217个种及亚种;
- The clay minerals in 65 surface sediment samples from the Changjiang River subaqueous delta were analyzed by using X ray diffraction (XRD) analysis technique. 摘要采用X射线衍射(XRD)分析技术分析了长江水下三角洲地区65个表层沉积物样品的粘土矿物。
- Abstract :By using the sea-floor visualization technique, we can directly observe sea-bottom landforms, surface sediment types and biotic communities in real time. 摘要: 海底可视技术是一种可以直观地对海底地形地貌、表层沉积物类型、生物群落等进行实时观察的调查手段。
- The sulfide contents in the surface sediment basically tended to be high in the north and to be low in the south, while the redox potential presented the opposite change tendency. 硫化物的垂直分布基本表现为随深度的增加而增加,氧化-还原电位的垂直分布基本表现为随深度的增加而降低。
- The organochlorine pesticides (OCPs) in surface sediments of Hainan Dongzhai harbor was analyzed utilizing GC-ECD. The total concentration range of OCPs was 0.31~7.36ng/g (0~2cm), and ranges from 0.38 to 5.38ng/g (2~10cm). 利用GC-ECD对海南东寨港海湾表层沉积物中有机氯农药进行分析;结果表明;研究区总有机氯农药浓度为0.;31~7
- A preliminary discussion on the OC source in surface sediments from the Chukchi Sea is made together with the observed data during 2 arctic expeditions,and it is concluded that the burial of sedimentary OC may depend mainly on the biological pump. 结合2次北极考察的实测结果,对楚科奇海海底表层沉积物中的有机碳来源进行了初步讨论,认为沉积有机碳埋葬可能主要取决于生物泵。
- Organochlorine pesticides in 14 samples in suspended particle matters and surface sediments of the south bank of the Yangtze estuary were determined by GC-ECD, and the concentration levels and distribution of HCHs and DDTs were analyzed in detail. 利用GC-ECD对长江口南岸14个采样点水体悬浮颗粒物(SPM)及表层沉积物进行了有机氯农药(OCPs)的测定;分析了其中HCHs和DDTs的赋存水平和形态分布.