厦门港湾蟹类的分布

本文根据我所1980年8月至1981年10月厦门港湾海洋环境综合调查,选取其季度月(11,2,5,8月)资料,研究该港湾蟹类的种类组成、数量分布与季节变化。     

海洋作业渔船管理系统的设计与运行试验

对渔政管理指挥系统建设项日中的业务软件部分渔船管理系统的设计方案进行了介绍。根据我国渔洋作业渔船的实际管理模式，提出了渔船管理系统设计方案。系统通过网络化的业务处理和管理流程，规范渔船建造、审批、登记以及捕捞许可证发放等管理业务，实现渔船控制指标的统一分配，以控制捕捞业发展规模和保护我国的渔业资源。系统以Microsoft VB6．0，Delphi6．0开发，在Window98／2000／XP环境下运行。通过运行试验，对系统运行环境进行了评估，为渔政管理信息化的建设、系统升级提供了经验和技术依据。     

基于麦克斯韦理论的海底大地电磁探测技术

麦克斯韦理论为海底大地电磁探测技术奠定了坚实基础。大地电磁场的测量通常测取Ex，Ey，Hx，Hy,Hz。大地电磁仪的设计要点包括：高灵敏度、智能化、同步采集数据、锚系硬连接、承压密封和合理的下沉速度所观测的数据经计算机处理后，可获得被测海域的地球物理信息。     

福建沿海沉积物中硫化物的分布

测定了福建沿海１７９个表层沉积物样品中硫化物的含量，潮间带含量范围为２．５０—１５２．０３ｍｇ·ｋｇ－１，浅海含量范围为２．５０—２９１．９７ｍｇ·ｋｇ－１。     

A study on benthic community structure in west of the Taiwan Strait and near the Taiwan Shoals

ＡｓｔｕｄｙｏｎｂｅｎｔｈｉｃｃｏｍｍｕｎｉｔｙｓｔｒｕｃｔｕｒｅｉｎｗｅｓｔｏｆｔｈｅＴａｉｗａｎＳｔｒａｉｔａｎｄｎｅａｒｔｈｅＴａｉｗａｎＳｈｏａｌｓ￥ＷｕＱｉｑｕａｎ；ＪｉａｎｇＪｉｎｘｉａｎｇ；ＸｕＨｕｉｚｈｏｕ；ＣａｉＥｒｘｉａｎｄＬｉｎ...     

遥感影像数据库设计与实现

遥感影像数据库的设计与实现,主要实现多源遥感影像数据的管理.通过调用GDAL库,实现多源遥感影像数据的读取,对影像数据进行分块,建立影像金字塔,实现影像数据和元数据入库,建立高效的索引机制;根据窗口显示范围,调取合理的金字塔层数据,并对数据进行缓冲和实施处理显示;最后,设计元数据的管理.最终实现影像数据和元数据信息的一体化管理.     

Main Controlling Factors on Hydrocarbon Accumulation and Distribution in Marine Sedimentary Sequences in South China

Multiple source rock assemblages were deposited in the sedimentary provinces in South China in geologic history,and some of them were destructed by and some survived against multiple tectonic movements.Therefore,multiple sources,mixed sources,and uneven distribution of sources occurred in the marine sedimentary basins in South China during the late stage of hydrocarbon pooling.Epidiagenesis of the marine carbonate reservoirs and its modification to reservoir poroperm characteristics determined the formation and the scale of natural gas pools.The exploration practices show that the large to medium gas fields mainly occur in areas with high-quality reservoirs.Detailed study of the paleo-oil accumulations and typical oil and gas reservoirs reveals that the basins experienced multiphase superimposition and modification,leading to the distribution of the Paleozoic paleo-oil accumulations and bitumen in the peripheral areas.The phenomenon that oil and gas production concentrates in the Sichuan basin indicates that the overall sealing conditions of a basin determine the oil/gas potentials and the scale of oil and gas production.This is a critical factor controlling the accumulation and distribution of gas in the marine sequences in South China.The early oil and gas pools in the Yangtze platform left billions of bitumen in the peripheral areas due to the destruction of seals.Since the Himalayan,"late-generation and late-accumulation" gas pools represented by the gas pools in the Sichuan (四川) basin were formed in the marine sedimentary sequences in South China as a result of the change of the sealing conditions.Current gas discoveries appear to be "paleo-generation and paleo-accumulation" gas pools but actually are "late-generation and late-accumulation" gas pools.These patterns of hydrocarbon pooling clearly depict themselves in western Sichuan basin and Weiyuan (威远)gas field.It is revealed that the gas pools in the Sichuan basin were mainly formed as a result of hydrocarbon phase change (thermal cracking of oil to gas),miscible migration,and dynamic equilibration since the Himalayan.A large number of gas pools were formed in the Himalayan and the gas pools in the marine sequences are characterized by late pooling; this kind of gas fields/pools are controlled by:(1) effectiveness of modification and superimposition of the marine basins,(2) effectiveness of the source rocks,(3) effectiveness of the overall preservation conditions,and (4) effectiveness of plays.     

垣曲盆地最高阶地风尘堆积形成时代及其构造意义

对垣曲盆地原土坪阶地剖面进行了详细的沉积学和磁性地层学研究,结果表明,原土坪剖面地层自下而上由水下河湖相-漫滩相-风尘堆积构成,整个剖面记录了一个水位下降、由水下沉积环境转变为气下环境的连续堆积过程。剖面地层记录的1.84～1.62MaB.P.期间由河湖相沉积环境转变为典型风尘堆积的沉积转型及风尘堆积反映出的1.21MaB.P.前后古气候变化事件是对青藏高原青藏运动C幕和昆黄运动的区域沉积响应。开始于1.62MaB.P.的典型风尘堆积底界年龄代表了该级阶地的形成时代,表明该段黄河至少在此时已经形成。     

河南理工大学校园导航系统的设计与实现

利用了SuperMap Objects组件,构建了C/S模式的河南理工大学校园导航系统,实现了信息查询、路径导航、办事指南、地图与数据编辑、数据输出、用户管理及三维虚拟校园导航等功能,并提供了与现有校园系统集成的接口.     

机载激光雷达平均树高提取研究

为了研究机载激光雷达(LiDAR)树高提取技术,以山东省泰安市徂徕山林场为实验区,于2005年5月进行了机载LiDAR数据获取和外业测量.通过对LiDAR点云数据的分类处理,分别得到了试验区的地面点云子集、植被点云子集和高程归一化的植被点云子集.基于高程归一化的植被点云子集计算了上四分位数处的高度,与实地测量的数据进行了比较,并结合中国森林调查规程进行了实用性分析.结果表明:对于较低密度的点云数据,使用分位数法可以较好地进行林分平均高的估计;机载激光雷达技术对树高估计是可行的,精度都高于87%,总体平均精度为90.59%,其中阔叶树的精度高于针叶树.该试验精度可以满足中国二类森林调查规程中平均树高因子的一般商品林和生态公益林的精度要求,对国有商品林小班的调查精度要求(5%)存在一点差距,需要在国有商品林区进一步开展验证工作.对本试验区而言,已经可以满足其作为森林公园生态公益林的调查要求.