湖北省粮食生产合理布局的初步研究

湖北省112°E以东的平原、丘陵地区,是粮食的主要产地。南北所跨纬度29°42′—32°34′N。本文分析了影响小麦和双季稻产量的气象因子的南北差异。用回归分析方法确定了它们之间的定量关系,再用聚类分析法进行了小麦和晚稻的种植区域的分类,得到了比较满意的结果。以31°N纬线为界,以北的鄂中丘陵、鄂北岗地为稻麦两熟区;以南的江汉平原和鄂东南为双季稻区。     

Geochemical characteristics of gossans related to siderite deposits in carbonate strata,western guizhou

Zonal distribution can be noticed in the gossans resulting from the weathering of siderite in carbonate strata, and this can be accounted for by zoning of subsurface waters. Since siderite is more insoluble than its hostrock, gossans are generally developed in the same place as siderite is exposed. Systematic variations in chemistry are recognizable from the ore body upwards to the surface. The gossans are high in Fe and Mn, but impoverished in S, P, Pb, Zn, Be, Cd, and Ag. This may serve as an indicator of distinguishing siderite gossans from sulphide ones in this region.     

高表面活性矿物对Zn~(2+)的吸附机理及其环境意义

本文利用高表面活性矿物蒙脱石、蛭石、沸石在一定的介质条件下对Zn2 +进行吸附实验研究。蒙脱石和蛭石对Zn2 +的等温吸附线呈双“S”型 ,而沸石对Zn2 +的等温吸附线则呈“Langmuir”型。三种矿物对Zn2 +的吸附容量大小顺序为 :蒙脱石 >蛭石 >沸石。运用粉晶X射线衍射、红外光谱、差热及热重分析等技术对矿物及矿物吸附Zn2 +后的结构特征进行了研究。结果表明 ,蒙脱石吸附锌后其层间域中吸附锌大量水解形成新的物相 ,而蛭石与沸石吸附锌后水解很少。这为利用高表面活性矿物控制和治理环境污染及其可循环利用提供了理论依据。     

鲜水河断裂带的构造大地测量

利用短边GPS点阵、短基线标石阵和精密激光测距 ,在与鲜水河断裂带的断层破裂带垂直的剖面上和构造盆地内进行构造大地测量 ,获得了断层软弱带和断层蠕变带上的最佳形变分布。综合利用相关地学成果和理论 ,揭示了构造形变所隐含的动力学信息 ,识别了断层应变带、塑性流变带和主断面在地面的分布范围。用外围GPS远场联测成果探讨了该断裂带的驱动力机制 ,匡正了其“左旋”运动和现今活动速度的含义。最后 ,评估了该断裂的地震活动趋势     

An equal area conversion model for rasterization of vector polygons

Vector-raster conversion is one of the classic research topics in the field of Geographical Information Systems (GIS). The algorithms commonly used in GIS are devoted to maintaining the vector polygons' shape characteristics, but neglect the gain and loss of a polygon's area, which is another important attribute. This paper proposes an equal-area conversion model based on an area compensation optimization principle. According to the topological relationship among polygons and boundary grids, a neighborhood compensation principle was adopted to assign the attributes of boundary grids and a global optimization algorithm was developed to minimize area distortion in the whole data set. Two experiments were designed and the results indicated that this algorithm not only guaranteed the area error is as small as possible, but also has the advantage as being adaptive to polygon shape and spatial structure.     

GMS—5多通道高温差的高度分布特征

本文从GMS－5红外通道探测原理出发，得到多通道亮温差DT12，DT1W随高度的分布特征，分析结果表明，所得的DT12，DT1W的高度分布特征具有明确的物理意义，它们与局地降雨概率及强度还存在一定的相关关系。     

云顶充满度的特征分析

本文采用GMS－5红外云母，提取了一个描述云顶结构特征的参数一云顶充满度VS。结合地面观测资料，引入了云高参数DTS，得到并分析了参数VS随云高DTS的分布特征，同时还讨论了VS的天气学意义。     

西昌锦屏地区的旅游地质资源

作为一种新兴的旅游形式，地质旅游因以地质考察与旅游活动的有机结合而达到追求返璞归真与休闲猎奇的目的。本文重点介绍了西昌锦屏地区的几处自然景点和地质旅游路线。该地区的自然、地质景观极具开发潜力。     

生态旅游胜地—九顶山

对九顶山的生物景观，水体景观，地质遗迹景观，天然气景观和人文景观等方面进行了详尽的描述，并划分出平水河景区，云湖景区，楠木沟景区，紫岩山景区，白云山景区，仙女洞景区和天池景区等七个景区，从科学性，美学性，文化性以及区位条件和功能方面对景观进行了评述。进而提出了开发的初步构想。