泾县雨雪冰冻灾害森林资源损失调查评估

该文结合泾县2008年雨雪冰冻灾害森林资源损失调查评估工作，介绍了县级森林资源灾害损失调查评估的一般调查、分析方法。     

雨雪冰冻灾害对绩溪林业的影响及减灾技术分析

2008年初的南方雨雪冰冻灾害给绩溪的林业和森林资源带来一定的打击,部分地区损失惨重。2009年2月以来,持续的低温及雨雪再次对部分地区的森林植被产生了影响。本文通过对灾后森林资源深入细致的调查研究,分析了雨雪冰冻灾害对绩溪林业的影响,提出一些具体的减灾技术。     

雨雪冰冻灾害对云南三江口自然保护区森林资源的影响调查研究

云南三江口自然保护区是2008年雨雪冰冻灾害的重灾区之一,严重的灾害对保护区的森林资源造成了巨大破坏。该文对保护区的主要林种资源的受灾情况进行了调查评估和初步分析,痔加强自然保护区森林资源抗灾能力提供参考和借鉴。     

仙宇山林场雨雪冰冻灾后重建营林措施探讨

仙宇山林场森林资源丰富,在遭受2次特大雨雪冰冻灾害后,及时采取了一系列的营林技术措施,达到恢复重建目的,探讨了具体营林措施。     

宣州区林业雨雪冰冻灾害发生分析及恢复重建措施

宣州区近2年的雨雪冰冻灾害给宣州林业和林业产业带来一定的打击,部分地区损失惨重,林业经济发展受到影响,对宣州森林资源的受灾情况进行分析,提出一些具体的恢复重建措施。     

广西糖料蔗雨雪冰冻灾害影响评估报告

2008年1~2月广西遭受历史罕见的雨雪冰冻灾害,造成糖料蔗损失较重。本文就雨雪冰冻灾害抽样调查、灾害影响分析、灾后恢复情况、存在问题和建议及灾害分类作了详细的阐述,为准确掌握灾情,更好地开展抗灾救灾减灾提供了决策依据。     

2008年初新余市低温雨雪冰冻灾害分析

2008年初,新余和我国南方大部地区一起遭受了历史罕见的低温、雨雪、冰冻灾害,在此对此次天气气候过程进行了分析.结果表明,此次冰冻天气强度大、持续时间长、造成的损失极为严重.冰冻灾害强度大,表现为过程平均气温、平均最高气温创历史新低;持续时间长,表现为连续低温日数和连续冰冻日数均为新余市有气象记录以来罕见的;冰冻灾害对电力、交通运输、农业及人民群众生活造成严重影响和损失,尤其对新余市电力运行造成灾难性影响.2007年8月开始的拉尼娜事件所造成的大气环流异常是导致我国大范围持续低温雨雪冰冻灾害的重要原因;就新余而会,超历史低温和长时间的低温、冰冻(雨凇)天气是致灾的主要原因;承灾体的变化、各行各业对此次低温雨雪冰冻灾害的预期低估,也是这次灾害损失巨大的重要原因.     

2008年广西木薯低温冻害情况及应对措施

广西是全国木薯的主要栽培区,2008年1～2月,广西遭遇了历史上罕见的强冰冻天气袭击,导致几十年不遇的特大雨雪冰冻灾害,对木薯生产造成了严重的损失,为了科学有效地指导抗灾救灾工作,对木薯受害情况进行了调查,并提出了相应的应对措施.     

雨雪冰冻灾害对我国畜禽业的影响及应对措施

近期的雨雪冰冻灾害对我国的畜禽业带来了巨大损失,分析了该次雪灾的影响以及应对措施,努力保障畜禽产品的市场供给,力争把灾害造成的损失降到最低限度。     

2008年湖南低温雨雪冰冻灾害成因分析

[目的]分析2008年湖南低温雨雪冰冻灾害的成因。[方法]基于基本气象观测资料,对2008年初发生在湖南的一次强低温雨雪冰冻天气进行了初步分析,探讨致灾因子、地形及人类活动在此次低温雨雪冰冻巨大灾害形成中的作用。[结果]2008年初低温雨雪冰冻天气造成湖南巨大灾害的原因是：致灾因子强度为历史罕见（较1954年还强）;地形影响加剧了灾害发展;人类活动对灾害起着放大作用。此外,提出了通过提高极端天气的预测预警能力、加强气候可性行论证、加大自然灾害防御宣传力度等措施来减轻极端天气事件的影响程度。[结论]该研究为低温雨雪冰冻灾害天气的预测预报提供理论依据。     

Segregation of form, color, movement, and depth: anatomy, physiology, and perception

Anatomical and physiological observations in monkeys indicate that the primate visual system consists of several separate and independent subdivisions that analyze different aspects of the same retinal image: cells in cortical visual areas 1 and 2 and higher visual areas are segregated into three interdigitating subdivisions that differ in their selectivity for color, stereopsis, movement, and orientation. The pathways selective for form and color seem to be derived mainly from the parvocellular geniculate subdivisions, the depth- and movement-selective components from the magnocellular. At lower levels, in the retina and in the geniculate, cells in these two subdivisions differ in their color selectivity, contrast sensitivity, temporal properties, and spatial resolution. These major differences in the properties of cells at lower levels in each of the subdivisions led to the prediction that different visual functions, such as color, depth, movement, and form perception, should exhibit corresponding differences. Human perceptual experiments are remarkably consistent with these predictions. Moreover, perceptual experiments can be designed to ask which subdivisions of the system are responsible for particular visual abilities, such as figure/ground discrimination or perception of depth from perspective or relative movement--functions that might be difficult to deduce from single-cell response properties.     

Mineralogy, petrology, and surface features of lunar samples 10062,35, 10067,9, 10069,30, and 10085,16

The primary rocks are a sequence of titanium-rich basic volcanics, composed of clinopyroxene, plagioclase, and ilmenite with minor olivine, troilite, and native iron. The soil and microbreccias are respectively loose and compacted mixtures of fragments and aggregates of similar rocks, minerals, and glassy fragments and spheres. Impact events are reflected by the presence of shock metamorphosed rock fragments, breccias, and glasses and their resulting compaction to form complex breccias, glass-spattered surfaces, and numerous glass-lined craters. Chemistry of the glasses formed by the impact events is highly variable, and the high iron and nickel content of a few moundlike features suggests that at least some of the projectiles are iron and nickel-rich meteorites.     

Research and development, productivity, and inflation

R & D, through its effects on the rate of productivity increase, can significantly restrain the rate of inflation in the medium and long run. High rates of inflation damage the workings of the price system and impair the efficiency of practically all economic activities, including R & D. Findings suggest that the percentage increase between 1969 and 1979, in total real R & D expenditures, has been exaggerated due to the inadequacy of the gross national product deflator as applied to R & D.