地震危险性分析中对烈度衰减的不确定性校正

针对近来就地震危险性分析中对地震烈度衰减的不确定性校正方法逻辑上缺陷的批评,在严格限定烈度是一有序分类变量、等震线是烈度分区的外包线的基础上,本文提出了一个简单实用的校正方法,并通过实例比较了不同方法得出的结果在数值上的差异。     

台湾的软玉

台湾软玉形成于五万年前,系超镁铁岩变成的蛇纹岩经交代而成。软玉主要为普通软玉、猫眼玉和蜡光玉三种。比其它的软玉稍硬些,且硬度与闪光性都有方向性,并含数种矿物包裹体。其地球化学特征是含铬极高,并影响到软玉的颜色。     

Combined impact of climate change,cultivar shift,and sowing date on spring wheat phenology in Northern China

Distinct climate changes since the end of the 1980s have led to clear responses in crop phenology in many parts of the world. This study investigated the trends in the dates of spring wheat phenology in relation to mean temperature for different growth stages. It also analyzed the impacts of climate change, cultivar shift, and sowing date adjustments on phenological events/phases of spring wheat in northern China (NC). The results showed that significant changes have occurred in spring wheat phenology in NC due to climate warming in the past 30 years. Specifically, the dates of anthesis and maturity of spring wheat advanced on average by 1.8 and 1.7 day (10 yr)^?1. Moreover, while the vegetative growth period (VGP) shortened at most stations, the reproductive growth period (RGP) prolonged slightly at half of the investigated stations. As a result, the whole growth period (WGP) of spring wheat shortened at most stations. The findings from the Agricultural Production Systems Simulator (APSIM)-Wheat model simulated results for six representative stations further suggested that temperature rise generally shortened the spring wheat growth period in NC. Although the warming trend shortened the lengths of VGP, RGP, and WGP, the shift of new cultivars with high accumulated temperature requirements, to some extent, mitigated and adapted to the ongoing climate change. Furthermore, shifts in sowing date exerted significant impacts on the phenology of spring wheat. Generally, an advanced sowing date was able to lower the rise in mean temperature during the different growth stages (i.e., VGP, RGP, and WGP) of spring wheat. As a result, the lengths of the growth stages should be prolonged. Both measures (cultivar shift and sowing date adjustments) could be vital adaptation strategies of spring wheat to a warming climate, with potentially beneficial effects in terms of productivity.     

关于80年代闽南—台湾浅滩渔场中上层渔获量变动原因的初探

近来，１９８６年中上层渔获量达７．４３３３万ｔ，１９８７年更创历史记录高达１２．０７万ｔ，并且１９８３年金色小洗涤 丁鱼产量也达到１．９５８７万ｔ，仅次于历史最高水平的１９７１年的产量，但到１９８８年的产量仅为２７７８ｔ，占中上层渔获量３．２１％，从而从历史上第一位下降到第４位，如此渔获量变动，其原因何在呢？笔者试就从海洋环境变异，捕捞力度等诸因素合理解释中上层渔获量变动，为科学管理和合理开发中上     

ENSO现象与台湾海峡西部海区中下层鱼类渔获量关系

对台湾海峡西部海区中下层多年（1956－1973年）渔获量变化与EN现象关系并结合捕捞强度进行一些初步分析，总结出渔获量变化规律，为合理开发渔业资源提供有用信息。     

发生在东海近海与Elnino现象有关海洋污染若干典型个例

探讨Ｅｌｎｉｎｏ不同类型赤潮成因和对湄洲湾油污现象进行一些讨论 。