米仓山隆起带西缘灯影组铅锌找矿潜力评价

较系统全面地叙述了米仓山隆起带灯影组铅锌矿成矿地质条件,为在其西缘寻找与陕西马元铅锌矿相同矿床类型矿产的找矿潜力进行了评价。     

二维滞弹性非静力平衡云模式第二部分──中低空风切变对云微物理过程的影响

本文运用已建立的二维时变云模式［1］，就中低空风垂直切变对对流和云微物理过程的影响进行了模拟研究。为此设计了五种方案进行了对比试验。结果表明：中低空风切变较小时，容易爆发对流；中低空切变不超过某一值时，对流发展缓慢，但最终会爆发强对流；一旦中低空风切变超过某一值时，则对流发展不起来。另一方面，中低空风切变可加强各云微物理过程及地面降水量。     

泰安市地质灾害预警预报系统研究

主要介绍了泰安市地质灾害气象风险预警与指挥系统。系统开发的主要目的是为了更好的与泰安市地质灾害防治工作相结合,通过对气象因素及地质灾害资料的分析和研究,基于地质灾害气象预警模型,采用先进的 GIS 技术能实现对地质灾害易发风险性区域预警,能直观地了解到各部分区域的地质灾害易发风险性,为各级政府防灾减灾提供科学的技术支撑。     

河西走廊地区A(b)值动态演化特征及在地震预测中的应用

采用A(b)值空间扫描方法对1980年以来河西走廊及其临近地区ML 2.3到ML 4.9地震资料进行了研究,统计分析了Ms 4.6以上地震前A(b)值异常情况,结果显示大多数Ms 4.6以上地震发生前的1-3年内,震中周围出现A(b)≥5.0的高值异常区域.R值检验结果为0.458.     

The “peeling” method to process apparent resistivity data for earthquake precursory monitoring

Considering the fact that there is only one pair of fixed potential poles in one direction used to monitor the resistivity changes under the observatory station which may indicate process of earthquake preparation, based on the precondition that the resistivity structure is 1-dimensional under the observatory station, and by way of equivalent model put forward by the authors, this paper suggests a kind of method trying to separate the resistivity changes in deep layers from that of the shallow layer. Analysis shows that, to obtain the same measured data with the same array, any a multi-layered geo-electrical structure can be equivalently taken as a two-layered one, we call it equivalent model. In this paper, the resistivity and thickness of the upper layer of the equivalent model are equal to that of the first layer of the original one, the resistivity of the lower layer of the equivalent model is obtained with calculation according to the requirement of equivalence, its value is relevant with the resistivities and thicknesses of all layer of the original model except for the first one, so the resistivity change of the equivalent layer can indicate the synthetic effect of variation of all layers of the original model except for the first one. The primary research results show that this method can work well. Foundation item: Chinese Joint Seismological Science Foundation (100146).     

Discard mitigation - what we can learn from waste minimization practices in other natural resources?

Solutions to the problem of discarding in fisheries have been debated for decades. Despite this attention, measures to ameliorate discarding have had limited success. Regulators, researchers, and industry continue to struggle with fisheries management and foregone yield in the face of the continued wastage of valuable resources due to discarding.Waste minimization and by-product utilization are powerful imperatives in other sectors that are also reliant on the harvest of natural resources. This paper considers the performance of these sectors in waste minimization and by-product utilization, with the aim of identifying practices and processes that may be applied to ameliorate discarding in fisheries.This paper describes the handling, utilization, and mitigation of discards and waste in the livestock farming, agriculture, mining, and waste management industries, and in particular, in forestry. In terms of biological impact, economic objectives, and management approaches the harvesting of trees has substantial similarities to industrialized fishing. However, the forestry sector has found ways to utilize almost 100% of the natural product harvest by establishing markets and new products. Analogous developments within the fishing industry could substantially improve sustainability through reduced levels of discarding and wastage. Based on the experiences of these sectors it is suggested that evaluations of potential Management Strategies are developed to specifically examine discard mitigation approaches on a broader scale than previously conducted.     

The temporal and spatial characteristics of the surface air temperature variations over the Antarctic and its surrounding area

The characteristics of the spatial distribution, temporal variations trend and oscillation for the surface air temperature variations during 1957—1993 in the Antarctic and its surrounding area were analyzed. The results show that the short-time climate change in the Antarctic is complex both temporally and spatially. The Antarctic is by no means the strongest responding region to the global greenhouse effect. There is a distinguished difference in the trends of the temperature changes for the Antarctic and global mean, which could not be explained simply by the global greenhouse effect. Project supported by the National Antarctic Key Project of China (85-905).     

扬子东南缘浙赣地区中生代盆地演化与构造环境研究

针对扬子东南缘浙赣地区地质构造特征,通过研究中生代的构造分层、盆地演化、火山活动构造环境等,分析了研究区中生代构造环境,认为研究区中生代盆地演化经历了由近东西向、北东东向向北东、北北东向构造方向的转变和由挤压-拉张-挤压-拉张的构造环境变化;构造体制环境从晚侏罗世开始,到早白垩世早期基本完成转换过程。伴随构造环境的转变,研究区内形成了中生代不同类型的盆地。     

空间信息技术是防洪减灾现代化的基础

我国洪涝灾害频繁,洪灾损失严重,防洪减灾将是一项长期而艰巨的任务。在防洪减灾研究中,必须积极引进当今最新科学技术成果,以高新技术改造水利这一传统产业,以水利信息化推动水利现代化。以遥感、地理信息系统和全球导航定位系统为支撑的空间信息技术可以广泛地应用于防洪减灾中,是防洪减灾现代化的基础。本文分析了空间信息技术在防洪减灾中的作用,并对空间信息技术在防洪减灾中的应用趋势作出展望。