盖县─析木城地区盖县亚岩群的划分与对比

阐述了盖县亚岩群建立的依据。将盖县亚岩群划分为3个岩组（汤家沟岩组、江还山岩组和太平岭岩组）6个岩性段。在讨论了各岩组、岩段基本岩性特征基础上进行了区域对比。     

Field detection of chlorophyll-a concentration in the sea surface layer by an airborne oceanographic lidar

An airborne oceanographic lidar, with a frequency-tripled Q-switched Nd： YAG laser of 355 nm, has been designed to measure chlorophyll-a （Chl-a） concentration in the sea surface layer by the Ocean Remote Sensing Institute, OUC. The field experiment was carried out in the bay which is located south of the Liaodong Peninsula on the 10th of September 2005. After the flight, the raw data were processed and analyzed by the fluorescence-to-Raman ratio method with seawater attenuation coefficients calculated from signal profiles. The results of Chl-a concentration sea water were also compared with those of Chl-a concentration by measurements by lidar are shown. The measurements in clear a Moderate Resolution Imaging Spectroradiometer （MODIS）.     

Changes in pick beginning date and frost damage risk of tea tree in Longjing tea-producing area

We analyze the pick beginning date and frost damage risk trends of Jiukeng, Longjing-43, and Wuniuzao tea trees with time, using meteorological data from 12 station pairs over the period 1971–2010 in the Longjing tea-producing area. The pick beginning date of Jiukeng, Longjing-43, and Wuniuzao varieties had no statistically significant trends before 1990. The pick beginning date of Jiukeng variety had statistically significant decreasing trends after 1990, and there were no statistically significant trends in the start date after 1990 for Longjing-43 and Wuniuzao varieties. The average pick beginning dates of Longjing-43 and Wuniuzao varieties before 1990 are later than those after 1990 by 3.8–4.8 and 2.0–3.1 days, respectively. We used the trend of difference between beginning date of tea plucking (BDTP) and 0 °C terminal date to analyze frost damage risk trends. Eleven counties had no statistically significant frost damage risk trends for Jiukeng, Longjing-43, and Wuniuzao varieties, leaving only one county with statistically significant trends.     

广州城区晚全新世环境变迁与人类活动

对广州市越秀区解放中路考古遗址剖面进行了年代学、岩性、硅藻和软体动物鉴定等研究,发现广州珠江北岸古城区南部在先秦时期为河道及河口湾湿地/洼地;因河流-河涌的淡水注入使河口盐度降低,故而沉积物中未见较高盐度的微体生物,仅发现了河口型咸水-半咸水硅藻;此时堆积的贝壳大多为淡水种,半咸水种少见,表明先秦(东周)时期,广州地区...     

Application of Grain Size Analysis to Study Sedimentary Environment of Sand Dune in the Vicinity of Tumen River

The dunes in estuary of Tumen River in China lie to the area between the Jiushaping and Fangchuan in the left bank of Tumen River (Fig.1). The dis-tance is about 15～20 km between the dunes and the coast. It ranges from China to D. P. R. Korea and Russia. The range of the height of dunes is about 15～20 m and the width is 100～200 m. By the re-connaissance, we protracted 9 section planes of the dunes and collected 40 sand samples of the dunes, and identified the sedimentary environment …     

APPLICATION OF CLAYS TO REMOVAL OF RED TIDE ORGANISMS Ⅰ.COAGULATION OF RED TIDE ORGANISMS WITH CLAYS

Coagulation of red tide organism cells with clays is discussed in theory and the effects of some fac-tors on it are studied.A quantitative model is presented which describes how the coagulation varies withpH in solution.According to the model,within the pH-range between pH_(zpc_a)and pH_(zpc_b),V_R is negativeand the coagulation is strong and strongest at pH=(pH_(zpc_a)+pH_(zpc_b))/2.It is also demonstrated that whenthe diameter of clay particles is close to that of cells,the collision probability is low,resulting in weakercoagulation.The model results have been corroborated by experiments and so are scientific and theoreticalbases for application.     

雷击地闪密度与雷暴日数的关系分析

根据美国卫星观测得到的我国各省区年平均总闪电资料并计算出各省区的年平均地闪密度(以下简称地闪密度);根据全国各省区220个站点的年平均雷暴日资料,按照<建筑物防雷设计规范>GB50057-94(2000年版)(以下简称<规范>)公式计算出全国各省区的地闪密度.比较两种方法得出的地闪密度,发现存在较大的差异,且不同区域差异变化很大.用单位雷暴日地闪密度概念,分析了我国各地单位雷暴日地闪密度的差异及其原因,指出单位雷暴日地闪密度能粗略反映与我国气候特征相适应的地闪密度的分布状况.进一步分析湖州市2007年人工观测和闪电定位仪观测的闪电资料,得到相同的结论.从而提出<规范>规定的地闪密度计算公式存在较大误差,应对其进行进一步的修订和完善.     

海洋石油污染及其生物修复

文章根据海洋油污染的现状,介绍了海洋石油污染的来源、危害、转归以及对污染的生物修复等内容。指出了限制微生物降解的因素以及如何提高降解效率的措施。生物修复对环境和人类影响小,修复速度快且费用较低,在海洋油污染治理中该方法具有广阔应用前景。     

马尼拉海湾和莱城港湾的辐射状况

本文利用在马尼拉海湾和莱城港湾考察所获得的少量辐射资料,分析了该两地区辐射各量值的日变化特征和地区差异。揭示了海(港)湾水面及其紧邻海岛陆面的辐射特征差异。这些信息很可能有助于上述地区海洋大气间热量交换的分析计算。     

炼镁用白云岩的工业要求及矿床勘探工作原则

皮江法炼镁工艺对白云岩原料的特定技术要求,提出了炼镁用白云岩矿床的勘探工业指标的矿床勘探原则,对我国今后进行这个矿种的勘探工作具有现实的技术户经济意义。