表层物

This phenomenon is supposed to be due to the abundant animalcule and active organic oddment in the surficial sediments and decomposition of organic matter and phosphorus compounds, leading to the dissoluble phosphorus into the pore water.

沈积物和孔隙水中磷的剖面特徵研究表明，表层沈积物和孔隙水中的磷都有明显上升的趋势，是由於沈积物的表层微生物和活性有机碎屑层比较丰富，有机质降解和含磷的有机化合物分解，使溶解性磷酸盐进入孔隙水。

The analyses of soil samples indicate that there are high values of physical clay fraction in arbor-bush-grass complex forest and apple orchard, which means strong capability to resist soil wind erosion.

3不同农地表层土壤机械组成分析表明，乔灌草地和苹果园地表层土壤物理性粘粒含量含量较高，说明其抗风蚀能力较强；葡萄园地和灌木林地表层土壤物理性粘粒含量较低，说明其抗风蚀能力较弱。

EREE distribution of the surface sediments in Chukchi Sea, high-values are mainly located in the southwest area adjacent to the west and north of Point Barrow area, a significant low in the area of Central. DREE distribution of surface sediments in Bering Sea, the central REE values area higher than that two sides.

楚科奇海表层沉积物中∑REE的分布，高值区主要分布在海区西南侧、西侧和巴罗角以北海域，低值区重要分布在海区中部；白令海表层沉积物中∑REE的分布，南北两侧较中部采样站位值低。

EREE distribution of the su***ce sediments in Chukchi Sea, high-values are mainly located in the southwest area adjacent to the west and north of Point Barrow area, a significant low in the area of Central. DREE distribution of su***ce sediments in Bering Sea, the central REE values area higher than that two sides\'.

楚科奇海表层沉积物中∑REE的分布，高值区主要分布在海区西南侧、西侧和巴罗角以北海域，低值区重要分布在海区中部；白令海表层沉积物中∑REE的分布，南北两侧较中部采样站位值低。

Distribution of biogenic silica content in surface sediments from deep water areas showed that it could not only reflect the paleoproductivity of siliceous micropaleontology in surface waters, but also indicate the strong or feeble upwelling. Thus, it was further confirmed that using biogenic silica content in sediments to trace upwelling and its change was effective and reliable. The analyzed result showed that radiolaria and poriferous specula have more contribution for biogenic opal, comparing with diatom in surface sediments from the northern studied area, probably owing to the diatom dissolved easily away and eaten by other organisms with little effort.

深水区表层沉积物中生物硅的含量分布表明，其不仅能反映出表层水体中硅质生物的古生产力水平，而且还能指示上升流的强弱，从而进一步证实了利用沉积物中生物硅含量来追踪上升流发育和变化的有效性与可信度研究结果还显示，在研究区域中北部表层沉积生物硅中放射虫和海绵骨针较硅藻占有更大的比重，这可能是由于硅藻易被溶解并易被其他生物体摄食的缘故。

The results showed that there were remarkable seasonal variations of chlorophyll a concentrations and grain size at the surface of the mudflat, i.

结果表明，研究区域表层沉积物中叶绿素a的浓度4，5月份较高，分别为(5.997±0.803)gg^(-1)和(2.356±0.295)gg^(-1)，12月份最低，为(0.571±0.091)gg^(-1)；表层沉积物中细颗粒物质(0m)含量从4月到12月也有减少的趋势，春季4月份最高，为(91.0±5.44)%，冬季12月份最低，为(59.8±11.95)%。

The trivalent chromium passivation film based on zincate plating obtained has compact structure with no obvious crack, and excellent anticorrosion performance. Different compositions are detected from the surface to inner film, the surface mainly contains Cr2O3-Cr3-ZnO compound, the inner (1030 nm to surface) composes of Cr2O3-ZnO-Zn.The forming process of passivation film possibly consists of four steps which are zinc dissolution, basic area appearance, gelatiniform film forming and converting to passivation film.

结果表明：锌酸盐镀锌层的三价铬钝化膜表面结构致密、无明显裂纹，具有较好的耐腐蚀性能；这种钝化膜表层与里层的组成不同，表层的组成为Cr2O3-Cr3-ZnO共混物；里层(离表层10~30 nm处)的主要组成为Cr2O3-ZnO-Zn共混物；钝化膜的成膜过程可能包括镀锌层的溶解、碱性薄层的形成、胶状膜的形成和胶状膜转化成钝化膜4个步骤。

Based on the analysis results of surficial sediment elements from 134 stations east of the Ryukyu Islands and other mineralogical data,the geochemical characteristics of surficial sediment elements from the study area were analyzed.

对琉球群岛以东海域134个站位表层沉积物的化学元素含量进行了系统测试，结合矿物学资料等，对研究区的表层沉积物元素地球化学特征进行了分析。

Percents of N immobilization were positively correlated with the litter mass loss, indicating forest floor with easily decomposition litters may have greater potential of N sinks than that with hardly decomposition litters.

在本实验中易分解凋落物具有较高的氮固持百分比，可能说明具有较易分解凋落物的森林表层可能比具有较难分解的凋落物的森林表层具有较大的氮固持潜力。

The field surveys and lab experiments were designed to study the distribution and source of PAH' pollution in water, sediment; the PAH' concentration and distribution in marine fish organ (of the fish Lateolabraxjaponicus and Pagrosomus major); the PAH' BCF factors of liver and bile in marine fish (Lateolabrax japonicus and Pagrosomus major); the relationship between PAH' exposure and biochemical response and the metabolic rate of naphthalene and pyrene in fish bile.

研究了多环芳烃在厦门西海域养殖区的表层海水、沉积物中的含量分布，并应用PAH型式的分子指纹方法分析了其来源特征。指出：(1)厦门西海域养殖区海水和沉积物的多环芳烃污染已很严重。表层海水的∑PAH（16种PAH）已达4.55μg/L，沉积物的∑PAH已达2.86μg/g。

The absorption and distribution of chromium were studied in ryeusing nutrient culture technique and pot experiment.

采用不同浓度K2CrO4(0，0.4，0.8和1.2 mmol/L)的Hoagland营养液处理黑麦幼苗，测定铬在黑麦体内的亚细胞分布、铬化学形态及不同部位的积累。

By analyzing theory foundation of mathematical morphology in the digital image processing, researching morphology arithmetic of the binary Image, discussing two basic forms for the least structure element: dilation and erosion.

通过分析数学形态学在图像中的理论基础，研究二值图像的形态分析算法，探讨最小结构元素的两种基本形态：膨胀和腐蚀；分析了数学形态学复杂算法的基本原理，把数学形态学的部分并行处理理念引入到家实际应用中。